# > Your Trusted Quartz Tube and Heaters Manufacturer Customizable quartz tubes and heaters tailored to your needs. Quality products at competitive prices. Request a consultation > 1988 Founded 40,000㎡ Factory area --- ## 页面 - [Carbon Fiber Heating Element](https://globalquartztube.com/carbon-fiber-heating-element/): Carbon Fiber Heating Element Support customization of various specifications and shapes. Request a consultation > Our Carbon Fiber Heating Element... - [Thank you](https://globalquartztube.com/thank-you/): Thank You If you have reached this page, then congratulations, your form has been submitted successfully and we will usually... - [Production & Quality](https://globalquartztube.com/production-quality/): Production & Quality How do we produce high-lifetime heating elements? Heating Wire Composition Analysis SPECTRO Test Report Our laboratory engineers... - [Quartz Heating Elements](https://globalquartztube.com/quartz-heating-elements/): Quartz Heating Elements The production capacity includes 5 production lines with a daily output of 100,000 units of various heating... - [Contact](https://globalquartztube.com/contact/): Contact Us Contact Us for Inquiries and Assistance Email contact@globalquartztube. com Phone 8615899905965 Address Building 12, Industrial Incubation Park, Innovation... - [Products](https://globalquartztube.com/products/): Our Products Main Offerings Explore our top-quality quartz tubes and customizable tube heaters tailored for your industrial needs. 01 Quartz... - [Blog](https://globalquartztube.com/blog/): Informative Blogs Partner with Us Today Experience the unbeatable quality and service of GlobalQT. Contact us now for your quartz... - [Home](https://globalquartztube.com/): Your Trusted Quartz Tube and Heaters Manufacturer Customizable quartz tubes and heaters tailored to your needs. Quality products at competitive... - [About](https://globalquartztube.com/about/): About Us GlobalQT (Global Quartz Tube) is a leading name in the production and distribution of customizable quartz tubes and... - [Heater Quartz Tube](https://globalquartztube.com/heater-quartz-tube/): Heater Quartz Tube Specializing in the R&D and production of heater quartz tubes for industrial applications, and certified by the... - [Quartz Tube](https://globalquartztube.com/quartz-tube/): Quartz Tubes We currently possess 8 quartz tube furnaces, with a daily production capacity of up to 12 tons of... - [Privacy Policy](https://globalquartztube.com/privacy-policy/): Who we are Suggested text: Our website address is: https://globalquartztube. com. Comments Suggested text: When visitors leave comments on the... --- ## 文章 - [Differences Between Quartz Tubes and Halogen Tubes](https://globalquartztube.com/differences-between-quartz-tubes-and-halogen-tubes/): Quartz tubes and halogen tubes differ significantly in terms of heat resistance, main composition, and application range, as detailed below:... - [Differences Between Heating Wire and Quartz Tube Heating](https://globalquartztube.com/differences-between-heating-wire-and-quartz-tube-heating/): The difference between heating wire and quartz tube is quite simple: heating wire is just a heating wire, while quartz... - [Cleaning, Drying, and Use of Laboratory Glassware Explained](https://globalquartztube.com/cleaning-drying-and-use-of-laboratory-glassware-explained/): This article provides a detailed explanation of the cleaning, drying, and usage methods for laboratory glassware. It is divided into... - [High-Transparency Quartz Tubes: Key Performance Advantages](https://globalquartztube.com/high-transparency-quartz-tubes-key-performance-advantages/): The application of high-transparency quartz tubes is expanding, with their increased transparency reflecting significant performance advantages across various fields. Here... - [High-Purity Quartz Tubes: Usage & Safety Tips in Furnaces](https://globalquartztube.com/high-purity-quartz-tubes-usage-safety-tips-in-furnaces/): Quartz tubes start softening when exposed to temperatures above 1265°C. For safety and optimal performance, it’s recommended not to exceed... - [Proper Use and Maintenance of Quartz Tubes in Tube Furnaces](https://globalquartztube.com/proper-use-and-maintenance-of-quartz-tubes-in-tube-furnaces/): In our interactions with customers, we often receive inquiries from users of tube furnaces looking to purchase quartz tubes. To... - [Impurities Impact Quartz Tubes' High-Temperature Stability](https://globalquartztube.com/impurities-impact-quartz-tubes-high-temperature-stability/): Quartz tubes are widely used in high-temperature environments such as semiconductors, optical fibers, and chemical industries due to their excellent... - [Impurities' Effects on Quartz Tube Stability and Performance](https://globalquartztube.com/impurities-effects-on-quartz-tube-stability-and-performance/): Quartz tubes are transparent glass tubes composed primarily of silicon dioxide, widely used in various high-demand applications. Their stability can... - [Factors Affecting Quartz Tube Stability at High Temperatures](https://globalquartztube.com/factors-affecting-quartz-tube-stability-at-high-temperatures/): Quartz tubes (primarily composed of silicon dioxide, SiO2) exhibit chemical stability at high temperatures, which is influenced by several key... - [Vacuum Quartz Tube Furnaces in Laboratory Research](https://globalquartztube.com/vacuum-quartz-tube-furnaces-in-laboratory-research/): Vacuum laboratory quartz tube furnaces play an indispensable role in scientific experiments. Their design and performance are critical in a... - [Quartz Tube Sealing Process: Key Steps and Considerations](https://globalquartztube.com/quartz-tube-sealing-process-key-steps-and-considerations/): The quartz tube sealing process requires highly precise control and professional skills. This article outlines the key operational steps and... - [Purification Methods for Reducing Impurities in Quartz Tubes](https://globalquartztube.com/purification-methods-for-reducing-impurities-in-quartz-tubes/): Quartz tubes are widely used in industrial and laboratory applications due to their excellent heat resistance, chemical stability, and transparency.... - [Electrical Testing for Quartz Tubes in Heating Devices](https://globalquartztube.com/electrical-testing-for-quartz-tubes-in-heating-devices/): Quartz tubes, made from high-purity silicon dioxide, are a specialized form of industrial glass with exceptional physical and chemical properties.... - [Wiring Methods for Infrared and 380V Heating Elements](https://globalquartztube.com/wiring-methods-for-infrared-and-380v-heating-elements/): Electric heating elements only work and generate heat when powered. Many people often ask: Do infrared heating elements have positive... - [Causes of Infrared Heating Element Bursting and Precautions](https://globalquartztube.com/causes-of-infrared-heating-element-bursting-and-precautions/): During the use of infrared heating elements, improper usage or substandard product quality often leads to tube bursting. In mild... - [How to Test Infrared Heating Elements with a Multimeter](https://globalquartztube.com/how-to-test-infrared-heating-elements-with-a-multimeter/): There are many standards to evaluate the quality of heating elements. How can we simply test the quality of a... - [How Hot Can Carbon Fiber Heating Elements Get? Temp Test](https://globalquartztube.com/how-hot-can-carbon-fiber-heating-elements-get-temp-test/): Many customers who have never used carbon fiber heating elements often ask, “How hot can carbon fiber heating elements get?... - [Power Calculation for Carbon Fiber Heating Elements](https://globalquartztube.com/power-calculation-for-carbon-fiber-heating-elements/): Simple Calculation Method for Drying Room Heat Power Regarding how much heating power a drying room requires, I’d like to... - [Are Carbon Fiber Heating Elements Safe for Infrared Heat?](https://globalquartztube.com/are-carbon-fiber-heating-elements-safe-for-infrared-heat/): When powered on, carbon fiber heating elements emit a soft orange-yellow light and heat objects through infrared radiation. Some individuals... - [Infrared vs UV Heating Tubes: Differences in Industrial Use](https://globalquartztube.com/infrared-vs-uv-heating-tubes-differences-in-industrial-use/): Infrared heating tubes and UV lamps are two commonly used lamps in industrial production equipment. Do you know the differences... - [Will Carbon Fiber Elements Break if Splashed with Water?](https://globalquartztube.com/will-carbon-fiber-elements-break-if-splashed-with-water/): When a carbon fiber heating element is turned on, its surface temperature can reach approximately 500°C. If water accidentally splashes... - [How to Prolong the Lifespan of Carbon Fiber Heating Elements](https://globalquartztube.com/how-to-prolong-the-lifespan-of-carbon-fiber-heating-elements/): Carbon fiber heating elements emit far-infrared rays with strong penetration and excellent heating efficiency, making them widely used in industries... - [4 Easy Ways to Calculate Carbon Fiber Heating Element Power](https://globalquartztube.com/4-easy-ways-to-calculate-carbon-fiber-heating-element-power/): Many customers are unsure how to confirm the voltage and power of the previously used heating elements when choosing carbon... - [Why Carbon Fiber Heating Elements Don't Need a Ballast](https://globalquartztube.com/why-carbon-fiber-heating-elements-dont-need-a-ballast/): The linear carbon fiber heating elements with wires on both ends look very similar to traditional fluorescent lamps. As a... - [Why Carbon Fiber Heating Tubes Smoke During First Use](https://globalquartztube.com/why-carbon-fiber-heating-tubes-smoke-during-first-use/): Today, I’d like to share with everyone why the surface of a carbon fiber heating tube may emit smoke during... - [Can Carbon Fiber Heating Tubes Be Used in Smokeless BBQs?](https://globalquartztube.com/can-carbon-fiber-heating-tubes-be-used-in-smokeless-bbqs/): In response to environmental concerns, smokeless barbecue is becoming more in demand. Traditional charcoal grilling is being used less and... - [Benefits of Carbon Fiber Infrared Heating in Paint Rooms](https://globalquartztube.com/benefits-of-carbon-fiber-infrared-heating-in-paint-rooms/): Paint baking is involved in various industries, including consumer electronics, automobiles, machinery manufacturing, medical devices, aerospace, and more. All these... - [Guide and Precautions for Carbon Fiber Heating Tube Ovens](https://globalquartztube.com/guide-and-precautions-for-carbon-fiber-heating-tube-ovens/): Many industries are involved in plastic coating, such as laptop shells, automotive decorative strips, and other plastic spray-painted products. In... - [Lead-Out Methods for Carbon Fiber Infrared Quartz Heating Tubes](https://globalquartztube.com/lead-out-methods-for-carbon-fiber-infrared-quartz-heating-tubes/): Compared with traditional heating methods, carbon fiber infrared heating tubes have the advantages of precision, efficiency, and energy saving. When... - [Carbon Fiber Infrared Heating: Principles & Applications](https://globalquartztube.com/carbon-fiber-infrared-heating-principles-applications/): Yesterday afternoon, we shipped 15 carbon fiber heating tubes, each 1. 8 meters long, with a specification of 380V and... - [Carbon Fiber Heating Tubes: Power Decay and Performance](https://globalquartztube.com/carbon-fiber-heating-tubes-power-decay-and-performance/): Today, I would like to discuss a common question from the first part of our detailed discussion on carbon fiber... - [How to Achieve Precise Temperature Control in Electric Ovens](https://globalquartztube.com/how-to-achieve-precise-temperature-control-in-electric-ovens/): Electric ovens or industrial drying ovens are commonly used in daily life, industrial production, and school experiments. But do you... - [Ensuring Uniform Temperature with Carbon Fiber Heating Tubes](https://globalquartztube.com/ensuring-uniform-temperature-with-carbon-fiber-heating-tubes/): How to Install Carbon Fiber Heating Tubes to Fully Cover the Baking Area? What is the ideal spacing between heating... - [Carbon Fiber Heating Tube in U-Shaped Tunnel Furnace Application](https://globalquartztube.com/carbon-fiber-heating-tube-in-u-shaped-tunnel-furnace-application/): Introduction to Drying Rooms in Industrial Production In industrial production, drying rooms are frequently used. The common types of drying... - [Can Carbon Fiber Heating Tubes Enhance Blow Molding Machines?](https://globalquartztube.com/can-carbon-fiber-heating-tubes-enhance-blow-molding-machines/): Plastic bottles are now widely used across various industries in daily life, including the beverage industry, daily chemical industry, food... - [Carbon Fiber Heating Tubes for Efficient Meat Product Drying](https://globalquartztube.com/carbon-fiber-heating-tubes-for-efficient-meat-product-drying/): Introduction Thanks to the energy-saving and durable characteristics of carbon fiber heating tubes, they have been widely used in various... - [Can Carbon Fiber Heating Tubes Work in Vacuum Environments?](https://globalquartztube.com/can-carbon-fiber-heating-tubes-work-in-vacuum-environments/): Carbon fiber heating tubes are well-suited for use in vacuum environments, thanks to their unique infrared heating capabilities. Unlike traditional... - [Efficient Grain Drying with Carbon Fiber Infrared Heating Tubes](https://globalquartztube.com/efficient-grain-drying-with-carbon-fiber-infrared-heating-tubes/): Traditional Grain Drying Methods The traditional method of drying wheat is very low-cost. If the weather is favorable, the drying... - [Carbon Fiber Tube Carbonizes Wood in Vacuum: Test Results](https://globalquartztube.com/carbon-fiber-tube-carbonizes-wood-in-vacuum-test-results/): Introduction This experiment aims to verify the heating effect of carbon fiber heating tubes on wooden sticks in a vacuum... - [Choosing the Right Carbon Fiber Infrared Heating Tube for Different Materials](https://globalquartztube.com/choosing-the-right-carbon-fiber-infrared-heating-tube-for-different-materials/): Infrared heating has been applied in industrial tunnel furnaces for decades. However, most current tunnel furnaces still use traditional stainless... - [Choosing the Right Carbon Fiber Heating Tube: Hollow vs. Core Rod](https://globalquartztube.com/choosing-the-right-carbon-fiber-heating-tube-hollow-vs-core-rod/): When selecting carbon fiber heating tubes, if you are not well-informed about the options, you might experience decision fatigue, unsure... - [Efficient Reflection with Semi-White Coated Carbon Fiber Heating Tubes](https://globalquartztube.com/efficient-reflection-with-semi-white-coated-carbon-fiber-heating-tubes/): 1. Overview of Carbon Fiber Heater Elements: Carbon fiber heater elements utilize transparent quartz tubes as protective enclosures within a... - [Functions of Quartz Tubes in Infrared Heating Elements](https://globalquartztube.com/functions-of-quartz-tubes-in-infrared-heating-elements/): Infrared quartz heating elements are a new type of electric heating component that uses infrared radiation to heat objects. They... - [Why Infrared Carbon Fiber Heater Tubes Are Best for Ovens](https://globalquartztube.com/why-infrared-carbon-fiber-heater-tubes-are-best-for-ovens/): Heat transfer occurs in three ways: conduction, convection, and radiation. These three methods of heat transfer are ubiquitous in daily... - [Advantages of Carbon Fiber Heating Tubes in Paint Industry](https://globalquartztube.com/advantages-of-carbon-fiber-heating-tubes-in-paint-industry/): In the paint industry, carbon fiber infrared heating tubes offer several advantages over traditional heating methods such as combustion heating,... - [Differences Between Carbon Fiber Heater Elements and Quartz Heater Elements](https://globalquartztube.com/differences-between-carbon-fiber-and-quartz-heater-tubes/): Recently, we’ve received inquiries from customers asking, “How do you distinguish between carbon fiber heater elements and quartz heater elements?... - [Insulating Ceramic Heads for Carbon Fiber Heating Tubes](https://globalquartztube.com/insulating-ceramic-heads-for-carbon-fiber-heating-tubes/): Ceramic Head Installation Position on Carbon Fiber Heating Tubes A ceramic head is installed at the lead position of carbon... - [Factors Influencing Carbon Fiber Heating Tube Lifespan](https://globalquartztube.com/factors-influencing-carbon-fiber-heating-tube-lifespan/): Introduction Carbon fiber heating tubes are a novel type of electric heating element that differ from traditional metal wire heating... - [Factors Affecting Special-Shaped Carbon Fiber Heating Tubes](https://globalquartztube.com/factors-affecting-special-shaped-carbon-fiber-heating-tubes/): In many heating applications, straight carbon fiber heating tubes cannot meet the heating needs of objects with special shapes, leading... - [Effectiveness of Infrared Heating for Drying Edible Mushrooms](https://globalquartztube.com/effectiveness-of-infrared-heating-for-drying-edible-mushrooms/): Edible mushrooms such as black fungus, shiitake, and oyster mushrooms are delicious and nutritious, often referred to as healthy foods.... - [Instantaneous Current Surge in Tungsten Infrared Heating Tubes](https://globalquartztube.com/instantaneous-current-surge-in-tungsten-infrared-heating-tubes/): Users of resistance heating tubes or tungsten wire infrared heating tubes are aware that when these tubes are first started,... - [Carbon Fiber Infrared Tubes for Vacuum Furnace Heating](https://globalquartztube.com/carbon-fiber-infrared-tubes-for-vacuum-furnace-heating/): Heating Methods of Vacuum Furnaces Vacuum furnaces generally employ two heating methods: internal heating and external heating. External heating has... - [Seafood Drying with Carbon Fiber Infrared Heating Tubes](https://globalquartztube.com/seafood-drying-with-carbon-fiber-infrared-heating-tubes/): Carbon fiber infrared heating tubes, as a new product introduced in recent years, have yet to be widely adopted in... - [Troubleshooting Carbon Fiber Heater Tripping Issues](https://globalquartztube.com/troubleshooting-carbon-fiber-heater-tripping-issues/): Recent customer feedback indicates that after installing carbon fiber heaters, they trip immediately upon turning on. What are the possible... - [Tungsten Wire vs. Carbon Fiber: Infrared Heating Element Comparison](https://globalquartztube.com/tungsten-wire-vs-carbon-fiber-infrared-heating-element-comparison/): Recently, customers have been asking about the differences between tungsten wire and carbon fiber in infrared heating tubes. Today, let’s... - [Carbon Fiber Infrared Heating in Printing: Energy Efficiency Case Study](https://globalquartztube.com/carbon-fiber-infrared-heating-in-printing-energy-efficiency-case-study/): Introduction to Energy Efficiency and Emission Reduction Energy conservation and green production are sacred responsibilities bestowed upon us by the... - [Carbon Fiber Infrared Heating Tubes for Efficient Tea Drying](https://globalquartztube.com/carbon-fiber-infrared-heating-tubes-for-efficient-tea-drying/): As tea processing technology increasingly emphasizes environmental friendliness and energy efficiency, traditional methods of tea drying using coal, wood, and... - [Infrared Heating Tubes for Efficient Instant Noodle Production](https://globalquartztube.com/infrared-heating-tubes-for-efficient-instant-noodle-production/): Introduction Instant noodles, also known as fast food noodles, have been a part of people’s lives for many years. Due... - [Quartz Carbon Fiber Heating Tubes - Benefits and Uses](https://globalquartztube.com/quartz-carbon-fiber-heating-tubes-benefits-and-uses/): Introduction With the maturation of carbon fiber production technology, carbon fiber has been widely developed into various heating elements as... - [Far-Infrared Drying Technology for Efficient Strawberry Drying](https://globalquartztube.com/far-infrared-drying-technology-for-efficient-strawberry-drying/): Strawberries are delicious and highly nutritious, but due to their delicate nature, they are not easy to preserve fresh. To... - [Far-Infrared Drying Technology: Flat Beans Case Study](https://globalquartztube.com/far-infrared-drying-technology-flat-beans-case-study/): Introduction Flat beans are commonly processed by boiling in brine and then sun-drying. In many rural areas, this method is... - [Food Drying Tech: Far-Infrared, Microwave, Vacuum Freeze](https://globalquartztube.com/food-drying-tech-far-infrared-microwave-vacuum-freeze/): Various Food Drying Methods In food production, there are numerous methods for drying food. These drying techniques can be categorized... - [Advantages of Infrared and Far Infrared Drying](https://globalquartztube.com/advantages-of-infrared-and-far-infrared-drying/): In recent years, the research and application of far infrared technology in drying, using carbon fiber heating elements as emitters,... - [Key Considerations for Far Infrared Carbon Fiber Heater Dryers](https://globalquartztube.com/key-considerations-for-far-infrared-carbon-fiber-heater-dryers/): When designing far infrared carbon fiber heater dryers, several key considerations must be taken into account: Selection of Dryer Form... - [Why Broken Carbon Fiber Heater Tubes Can't Be Reused](https://globalquartztube.com/why-broken-carbon-fiber-heater-tubes-cant-be-reused/): Today, while browsing through records, I came across a friend’s query about whether damaged heating tubes can be salvaged. Specifically,... - [Choosing Far Infrared Heating Equipment: Key Considerations](https://globalquartztube.com/choosing-far-infrared-heating-equipment-key-considerations/): 1. Heating Element Length Requirements The length of far infrared heating elements should generally match the overall width of the... - [Infrared Heating & Drying in Food & Agriculture](https://globalquartztube.com/infrared-heating-drying-in-food-agriculture/): Advantages of Infrared Heating and Drying The equipment using carbon fiber heater elements as a far-infrared radiation source is referred... - [Efficiency Improvement Using Carbon Fiber Heater Elements for Drying Plastic Products](https://globalquartztube.com/boost-plastic-drying-efficiency-with-infrared-heating/): Introduction With the development of the chemical industry, plastics have become essential raw materials for synthetic fibers, electrical insulation materials,... - [Carbon Fiber Heating Elements: Efficiency and Applications](https://globalquartztube.com/carbon-fiber-heating-elements-efficiency-and-applications/): Carbon fiber heating elements are now widely applied in various industrial equipment. How effective are they in saving energy? Transparent... - [Far Infrared Wood Drying Technology and Development Prospects](https://globalquartztube.com/far-infrared-wood-drying-technology-and-development-prospects/): Wood is widely used in market life, the construction industry, furniture production, and industrial manufacturing. Most of the wood we... - [Carbon Fiber Heater Tube Designs for Drying Lines](https://globalquartztube.com/carbon-fiber-heater-tube-designs-for-drying-lines/): Industrial drying lines, particularly in sectors like large-scale coating factories, food processing plants, and textile printing and dyeing facilities, utilize... - [Carbon Fiber Heater Tubes for Efficient Industrial Drying Rooms](https://globalquartztube.com/carbon-fiber-heater-tubes-for-efficient-industrial-drying-rooms/): Industrial drying rooms find extensive applications across various fields such as food drying, crop drying, and plastic/metal coating drying. The... - [Selecting Carbon Fiber Heater for Industrial Tunnel Dryers](https://globalquartztube.com/selecting-carbon-fiber-heater-for-industrial-tunnel-dryers/): Industrial tunnel dryers are a preferred choice for drying processes in industrial, agricultural, and medical production due to their efficiency... - [Types of Paint Coatings and Their Curing Mechanisms](https://globalquartztube.com/types-of-paint-coatings-and-their-curing-mechanisms/): Paint coatings have become integral to our daily lives and work environments. From solid wood furniture at home to components... - [Enhance Paint Drying Efficiency with Carbon Fiber Heating Elements](https://globalquartztube.com/enhance-paint-drying-efficiency-with-carbon-fiber-heating-elements/): In the initial stages of production, many people believed that the drying mechanism of paint coatings is similar to that... - [Infrared Radiant Heating Tubes for Directing Drying of Single-Layer Wood Panels to Solve Plywood Warping Issues?](https://globalquartztube.com/infrared-radiant-heating-tubes-for-directing-drying-of-single-layer-wood-panels-to-solve-plywood-warping-issues/): Plywood or laminated wood is formed by pressing multiple layers of veneer bonded together. Veneers are obtained by rotary cutting... - [Is Electric Heating More Energy-Intensive for Drying Single-Layer Wood Panels? Suggestions for Enhancing Four Design Parameters](https://globalquartztube.com/optimize-plywood-drying-electric-heating-and-infrared-technology/): In recent years, there has been in-depth global research on the drying characteristics of plywood veneers, primarily focusing on hot... - [Theory and Practice of Infrared Heating Tubes for Wood Drying](https://globalquartztube.com/theory-and-practice-of-infrared-heating-tubes-for-wood-drying/): Drying aims to achieve the physical process of moisture migration in materials, reaching a certain dryness level or moisture content.... - [Theory of Evaporation of Free Moisture Inside Wood and Research on Drying Wood with Carbon Fiber Electric Heating Tubes](https://globalquartztube.com/wood-drying-science-with-carbon-fiber-heating-tubes/): According to the way water combines with materials, drying science divides materials into three categories. The first category is capillary-porous... - [Factors Affecting the Drying Efficiency of Waterborne Polyurethane Paint](https://globalquartztube.com/factors-affecting-the-drying-efficiency-of-waterborne-polyurethane-paint/): Waterborne polyurethane (WPU) paints are gradually replacing traditional solvent-based paints due to environmental concerns. Unlike organic solvent-based paints, waterborne paints... - [Mid-Wave Infrared Heating Tubes Wavelength](https://globalquartztube.com/mid-wave-infrared-heating-tubes-wavelength/): In the electric heating industry, the wavelength of mid-wave infrared heating tubes is strictly between 2μm and 15μm. It’s important... - [Does Higher Temperature Speed Up Drying? Does Medicinal Herb Slice Retain Its Efficacy After High-Temperature Drying?](https://globalquartztube.com/impact-of-drying-on-medicinal-herb-efficacy/): During the drying validation process of medicinal herb slices, we discovered that the maximum temperature these slices can tolerate is... - [Introduction to Infrared Drying of Traditional Chinese Medicine Slices](https://globalquartztube.com/infrared-drying-of-chinese-medicine-key-stages/): Today, I will share some experimental data on infrared drying of traditional Chinese medicine slices, specifically using an intermittent infrared... - [Carbon Fiber Heater Elements: Four Characteristics of Infrared Radiation Drying of Traditional Chinese Medicine Slices](https://globalquartztube.com/infrared-drying-in-tcm-efficiency-technology/): Traditional Chinese medicine (TCM) has historically been dried using one of the oldest methods—sun-drying, which essentially involves the medicinal materials... - [Research on Rapid Curing of Artificial Woodworking Board Powder Coating Using Carbon Fiber Heater Element Infrared Radiation](https://globalquartztube.com/eco-friendly-curing-for-woodworking-boards/): Global demand for woodworking products remains robust, highlighted by the extensive production of artificial boards exceeding 100 million cubic meters... - [Selection of Infrared Heating Tubes for Drying Hydrated Wet Materials: Short-wave or Medium-long Wave?](https://globalquartztube.com/selection-of-ir-heating-tubes-short-or-medium-long-wave/): Capillary multi-porous colloidal materials, as previously mentioned, are one of the most common types of materials encountered in everyday life... - [Heat Transfer Driven by Temperature Differences: Applications and Distinctions in Engineering Thermodynamics and Heat Transfer](https://globalquartztube.com/heat-transfer-in-engineering-key-principles-and-applications/): Heat Transfer in Our World In the myriad worlds where we live, various processes occur constantly, one of the physical... - [Key Material Characteristics in Drying Mechanics](https://globalquartztube.com/key-material-characteristics-in-drying-mechanics/): Introduction to Drying Mechanics In the field of drying mechanics, the hard work of researchers studying the dynamics of drying... - [Tunnel Oven Carbon Fiber Heater Element](https://globalquartztube.com/tunnel-oven-carbon-fiber-heater-element/): Recognizing the diverse needs of our clients, we offer custom-made carbon fiber heater elements that can be tailored to fit... - [Principle of Infrared or Far Infrared Heating](https://globalquartztube.com/principle-of-infrared-or-far-infrared-heating/): Infrared Radiation Infrared (IR) radiation refers to electromagnetic waves with wavelengths ranging from 1 millimeter to 760 nanometers (nm), lying... - [Research on Drying Nine Types of Fruits and Vegetables Using Far-Infrared Technology with Carbon Fiber Heating Tubes](https://globalquartztube.com/far-infrared-drying-of-fruits-and-vegetables-study/): Introduction to Far-Infrared Drying Technology Far-infrared devices utilize principles of structural chemistry and photochemistry to activate water molecules within fruits... - [Efficient Textile Drying with Carbon Fiber Heating Elements](https://globalquartztube.com/efficient-textile-drying-with-carbon-fiber-heating-elements/): Today, we are sharing a case study where a new client of ours wanted to validate “carbon fiber heating elements... - [Advantages and Disadvantages of Using Carbon Fiber Heating Tubes for Drying Fruits and Vegetables, and Necessary Parameter Adjustments](https://globalquartztube.com/infrared-drying-of-produce-pros-cons-adjustments/): The article “Common Drying Methods for Fruits and Vegetables in Industrial Production and Their Pros and Cons” mentions the use... - [Why Carbon Fiber Heaters Excel in Industrial Drying Ovens](https://globalquartztube.com/why-carbon-fiber-heaters-excel-in-industrial-drying-ovens/): In many industrial production lines, drying ovens are commonly used to facilitate drying processes. Traditionally, these ovens have relied on... - [Common Drying Methods for Fruits and Vegetables in Industrial Production and Their Pros and Cons](https://globalquartztube.com/seven-common-drying-methods-for-fruits-and-vegetables/): Introduction to Water Content in Fruits and Vegetables Water is the main component of fresh fruits and vegetables, typically ranging... - [Infrared Radiation: What Kind of Heating Method Is It?](https://globalquartztube.com/infrared-radiation-what-kind-of-heating-method-is-it/): Infrared radiation is frequently mentioned in various articles, particularly in reference to carbon fiber infrared heating tubes, as a form... - [Is Infrared Scattering Considered When Using Carbon Fiber Heating Tubes to Dry Wet Materials in Industrial Production?](https://globalquartztube.com/does-infrared-scattering-affect-drying-with-carbon-fiber-tubes-in-industry/): In industrial production, electrical heating is commonly used to heat and dry wet materials. The main drying principles include the... - [Why Carbon Fiber Heaters Fail with Quartz Tube Damage?](https://globalquartztube.com/why-carbon-fiber-heaters-fail-with-quartz-tube-damage/): Some users have expressed concerns when using carbon fiber infrared heating elements: “Why does the heating element cease to function... - [Proper Installation of Screw Joint Carbon Fiber Heater Elements](https://globalquartztube.com/proper-installation-of-screw-joint-carbon-fiber-heater-elements/): Screw joint carbon fiber heater elements are popular due to their high temperature resistance compared to wire joint elements. Despite... - [How to Increase the Upper Temperature Limit of Carbon Fiber Heater Elements?](https://globalquartztube.com/how-to-increase-the-upper-temperature-limit-of-carbon-fiber-heater-elements/): Many manufacturers of carbon fiber heater elements produce tubes with a maximum operating temperature of around 300 degrees Celsius. Above... - [Precautions for Installing Quartz Heating Elements](https://globalquartztube.com/precautions-for-installing-quartz-heating-elements/): Handle with Care During Transportation and Installation Due to the material and structure, the quartz tubes and internal filaments of... - [Quartz Heating Tube Lifespan and Durability Test](https://globalquartztube.com/quartz-heating-tube-lifespan-and-durability-test/): Introduction: Quartz heater tubes are widely utilized in various industrial applications due to their high thermal efficiency and rapid heat... - [Non-Metal High-Temperature Radiant Electric Heat Film Technology—Far Infrared Quartz Heating Tubes](https://globalquartztube.com/non-metal-high-temperature-radiant-electric-heat-film-technology-far-infrared-quartz-heating-tubes/): Introduction to Non-Metal High-Temperature Radiant Electric Heat Film Technology This technology primarily utilizes far-infrared energy for radiant heating, offering rapid... - [Fused Quartz Tubes](https://globalquartztube.com/fused-quartz-tubes/): Characteristics of Fused Quartz Tubes Fused Quartz Ceramic Roller Rods Colored Quartz Tubes Black Quartz Tubes Black quartz tubes are... - [What is Carbon Fiber Heater Element](https://globalquartztube.com/what-is-carbon-fiber-heater-element/): Introduction to Carbon Fiber Heater Elements Carbon fiber heater elements, also known as carbon fiber electric heating tubes, infrared heating... - [What is Quartz Heater Tube](https://globalquartztube.com/what-is-quartz-heater-tube/): I. Overview and Energy-Saving Principle of Quartz Tube Heaters Quartz tube heaters utilize milky white quartz glass tubes that have... - [Cerium-doped quartz tubes](https://globalquartztube.com/cerium-doped-quartz-tubes/): In the field of advanced industrial materials, continuous innovation and high-performance solutions are crucial. Ce doped quartz tubes represent a... - [Everything You Want to Know About Carbon Fiber Heater Elements](https://globalquartztube.com/everything-you-want-to-know-about-carbon-fiber-heater-elements/): 1. Heating Principle and Features of Carbon Fiber Heater Elements 1. 1 Heating Principle 1. 2 Features 2. Materials and... - [Manufacturing Steps of Carbon Fiber Infrared Heating Element](https://globalquartztube.com/manufacturing-steps-of-carbon-fiber-infrared-heating-element/): Introduction Carbon fiber infrared heating elements are high-tech heating devices that combine carbon fiber infrared technology with quartz electric heating... - [Structure of Quartz Heater Elements](https://globalquartztube.com/structure-of-quartz-heater-elements/): Introduction Quartz heater elements are common electric heating devices, primarily composed of quartz tubes, heating wires, and insulation materials. The... - [Fused Quartz Optical Components](https://globalquartztube.com/fused-quartz-optical-components/): Fused quartz optical components are important optical materials widely used in optical systems. They possess excellent optical performance and chemical... - [Quartz Heater Tube Repair Methods](https://globalquartztube.com/quartz-heater-tube-repair-methods/): 1. Introduction 1. 1 Overview Quartz heater tubes, as a common heating device, are widely used in various fields. However,... - [Quartz Heater Tube Temperature](https://globalquartztube.com/quartz-heater-tube-temperature/): 1. Introduction 1. 1 What is a Quartz Heater Tube A quartz heater tube is a heating element that uses... - [Research on Processing and Annealing Techniques of Quartz Glass](https://globalquartztube.com/research-on-processing-and-annealing-techniques-of-quartz-glass/): 1. Introduction This research on the processing and annealing techniques of quartz glass is aimed at fiber optic production and... - [Vacuum Sealed Quartz Tube Operation Instructions](https://globalquartztube.com/vacuum-sealed-quartz-tube-operation-instructions/): Preliminary Checks Before starting the sealing process, carefully inspect the equipment for faults. Ensure all sealing valves are closed, and... - [Analysis of the Semiconductor Quartz Tube Market](https://globalquartztube.com/analysis-of-the-semiconductor-quartz-tube-market/): Introduction Semiconductor quartz tubes are key components widely used in the semiconductor industry, known for their conductivity and thermal stability.... - [Transparent Fused Quartz Tubes Market Analysis Report](https://globalquartztube.com/transparent-fused-quartz-tubes-market-analysis-report/): 1. Introduction 1. 1 Overview Transparent fused quartz tubes are high-purity, high-transparency, high-temperature-resistant, and chemically resistant materials widely used in... - [Photovoltaic Graphite Boat Quartz Tube](https://globalquartztube.com/photovoltaic-graphite-boat-quartz-tube/): Introduction Photovoltaic graphite boat quartz tube is a crucial component used in solar photovoltaic power generation. It is a tubular... - [Quartz Tube Forming Process](https://globalquartztube.com/quartz-tube-forming-process/): The quartz tube forming process is a common method used to manufacture quartz tubes of various shapes and sizes. Quartz... - [Internal Structure of Quartz Tube Heating Elements](https://globalquartztube.com/internal-structure-of-quartz-tube-heating-elements/): 1. Introduction 1. 1 Overview Quartz tube heating elements are common heating components widely used in industrial, medical, and electronic... - [U-Shaped Quartz Tube Reactor](https://globalquartztube.com/u-shaped-quartz-tube-reactor/): Overview A U-shaped quartz tube reactor is a common laboratory instrument used for conducting chemical or biological reactions. It consists... - [Quartz Tube Welding Methods](https://globalquartztube.com/quartz-tube-welding-methods/): Quartz tubes are extensively utilized in various fields such as optics, semiconductors, electronics, and chemicals, including applications like LED manufacturing,... - [Uses of Quartz Rods in Laboratories](https://globalquartztube.com/uses-of-quartz-rods-in-laboratories/): Quartz rods are a commonly used laboratory tool with a wide range of applications across various scientific fields. Below are... - [Allowable Pressure of Quartz Tubes](https://globalquartztube.com/allowable-pressure-of-quartz-tubes/): The allowable pressure of quartz tubes depends on their manufacturing process and specifications. Generally, quartz tubes can withstand pressure in... - [Quartz Tube Absorption Wavelengths](https://globalquartztube.com/quartz-tube-absorption-wavelengths/): Quartz tubes can absorb light within the wavelength range of 200 to 2000 nanometers. Specifically, quartz tubes have a higher... - [Transmission Rate of Quartz Tubes](https://globalquartztube.com/transmission-rate-of-quartz-tubes/): Quartz tubes are a type of transparent glass tube widely used in the fields of optics and optoelectronics. They allow... - [Optimal Temperature Range for Quartz Tubes](https://globalquartztube.com/optimal-temperature-range-for-quartz-tubes/): Quartz tubes are often used as sampling or reaction conduits in environments that require resistance to high temperatures or pressures.... - [Melting Point of Quartz Tubes](https://globalquartztube.com/melting-point-of-quartz-tubes/): Quartz tubes are a common type of inorganic non-metallic material known for their resistance to high temperatures, corrosion, and high... - [Quartz Tube Thermal Efficiency](https://globalquartztube.com/quartz-tube-thermal-efficiency/): Quartz tubes are a common type of industrial heat exchange equipment, capable of transferring heat from one place to another.... - [Quartz Tube Pickling Process](https://globalquartztube.com/quartz-tube-pickling-process/): The quartz tube pickling process is a common surface treatment method primarily used to remove oxides and impurities from the... - [Methods of Dehydroxylation for Quartz Tubes](https://globalquartztube.com/methods-of-dehydroxylation-for-quartz-tubes/): Quartz tubes are materials widely used in scientific research and industrial production. They are characterized by high purity and excellent... - [Hydroxyl Groups in Quartz Tubes](https://globalquartztube.com/hydroxyl-groups-in-quartz-tubes/): Hydroxyl in Quartz Glass Hydroxyl dissolved in quartz glass is known as hydroxyl. Hydroxyl is the main impurity in quartz... - [Inflatable Vacuum-Sealed Quartz Tube System Operating Instructions](https://globalquartztube.com/inflatable-vacuum-sealed-quartz-tube-system-operating-instructions/): Preparation: Before starting the sealing process, carefully check the instrument for any malfunctions. Ensure all seal valves are closed, and... - [Applications of Quartz Glass in Diverse Industries](https://globalquartztube.com/applications-of-quartz-glass-in-diverse-industries/): Quartz Glass for Discharge Tubes Transparent quartz glass is extensively used in various light sources such as mercury lamps, ultra-high... - [Quartz Tube Raw Mineral Quality Standards and Key Indicator Analysis](https://globalquartztube.com/quartz-tube-raw-mineral-quality-standards-and-key-indicator-analysis/): Quartz Tube Raw Mineral Quality Standards The quality standards for raw minerals used in quartz tube drawing include the following... - [Understanding the Refractive Index of Quartz Tubes](https://globalquartztube.com/understanding-the-refractive-index-of-quartz-tubes/): Quartz tubes are a common type of optical instrument extensively used in scientific, industrial, and medical fields. The refractive index... - [Quartz Heater Tubes: Principles and Construction](https://globalquartztube.com/quartz-heating-tubes-principles-and-construction/): Quartz heating tubes are widely recognized heating elements in both industrial and scientific settings. Let’s explore the principles and design... - [The Maximum Operating Temperature of Quartz Tubes in Vacuum Applications](https://globalquartztube.com/the-maximum-operating-temperature-of-quartz-tubes-in-vacuum-applications/): Quartz tubes are a prevalent material known for their exceptional thermal stability and high-temperature resistance. Widely used in industrial vacuum... - [The Production Process of Quartz Tubing](https://globalquartztube.com/the-production-process-of-quartz-tubing/): Quartz tubing is a type of transparent or translucent tubing made from silicon dioxide (SiO2), known for its high temperature... - [Spectral Range of Quartz Glass Products](https://globalquartztube.com/spectral-range-of-quartz-glass-products/): Quartz glass products’ light transmission range primarily refers to the spectrum of light that quartz glass can allow to pass... - [Quartz Purity Across Different Industries](https://globalquartztube.com/quartz-purity-across-different-industries/): The purity requirements for quartz in various application fields may not be the same. Purity refers to the content of... - [The Differences Between Quartz Tubes and Tubes Made of Other Materials](https://globalquartztube.com/the-differences-between-quartz-tubes-and-tubes-made-of-other-materials/): Quartz tubes are made from silicon dioxide and boast exceptional properties such as high temperature resistance, corrosion resistance, thermal stability,... - [How to Cut Quartz Tubes?](https://globalquartztube.com/how-to-cut-quartz-tubes/): Quartz tubes are integral components in various industries, including electronics, lighting, and scientific research. Cutting quartz tubes to precise dimensions... - [How to Choose High-Quality Quartz Tubes](https://globalquartztube.com/how-to-choose-high-quality-quartz-tubes/): Introduction: Selecting high-quality quartz tubes is essential for ensuring the efficiency and longevity of applications in various industries. Given the... - [How is Industrial Quartz Glass Manufactured?](https://globalquartztube.com/how-is-industrial-quartz-glass-manufactured/): Quartz glass is a material of paramount importance across several cutting-edge fields. Known for its exceptional properties, such as high... - [Utilization and Maintenance of Quartz Tubes in Laboratory Muffle Furnaces](https://globalquartztube.com/utilization-and-maintenance-of-quartz-tubes-in-laboratory-muffle-furnaces/): Quartz tubes play a crucial role in the functioning of tube furnaces, often employed in various laboratory settings. Here are... - [Upstream Raw Materials and Downstream Applications of Quartz Products](https://globalquartztube.com/upstream-raw-materials-and-downstream-applications-of-quartz-products/): In the quartz glass industry chain, quartz sand and silicon compounds (such as SiCl4) are positioned at the upstream level.... - [Difference Between Quartz vs. Carbon Fiber Heating Tubes](https://globalquartztube.com/difference-between-quartz-vs-carbon-fiber-heating-tubes/): 1. Energy Consumption Comparison Quartz heating tubes heat up through the resistance of tungsten filaments. Carbon fiber heating tubes, being... - [How to Clean Quartz Tube: A Guide for All Uses](https://globalquartztube.com/how-to-clean-quartz-tube-a-guide-for-all-uses/): In this article, we will introduce concise quartz cleaning instructions, divided into three sections for different users: Physical Cleaning Methods—Suitable... - [In-depth Analysis: What is High-Purity Quartz Technology?](https://globalquartztube.com/in-depth-analysis-what-is-high-purity-quartz-technology/): High-purity quartz refers to quartz series products with a SiO2 purity greater than 99. 9%. It is the material foundation... - [The Difference Between Quartz and Glass](https://globalquartztube.com/the-difference-between-quartz-and-glass/): As society continues to evolve rapidly, the types of glass have become increasingly diversified, meeting the needs of various occasions.... - [The Difference Between Quartz and Stainless Steel Heating Tubes](https://globalquartztube.com/the-difference-between-quartz-and-stainless-steel-heating-tubes/): When it comes to industrial and domestic heating solutions, the debate between quartz and stainless steel heating tubes is prevalent.... --- # # Detailed Content ## 页面 ### Carbon Fiber Heating Element - Published: 2024-09-23 - Modified: 2025-04-17 - URL: https://globalquartztube.com/carbon-fiber-heating-element/ Carbon Fiber Heating Element Support customization of various specifications and shapes. Request a consultation > Our Carbon Fiber Heating Element Offerings 190V 2000W Straight Shape 100V 300W Straight Shape Frosted Tube 220V 350W Double-Layer Tube 220V 300W Straight Shape with Square Ceramic Head 220V 1000W Straight Shape Half-White Coated 220V 2500W Straight Shape Single-Ended Tube 220V 2000W 90° Bent Tube with Single-Ended Waterproof Structure 12V 100W Single-Ended 100V 250W Small U-Shape 230V 700W Semi-Circular 220V 1000W Pear-Shaped 220V 900W Ω Shape 220V 1400W Ω Shape with Bent Legs 220V 1400W S-Shaped M-Shaped Ruby Tube 220V 350W Circular 220V 700W Arch-Shaped 220V 55W PAR30 Aluminum Cup Request a consultation > Customization of Carbon Fiber Heater Element The carbon fiber infrared heating element is widely used in various applications such as heating, drying, and insulation in household appliances, industrial equipment, and medical devices. The element's shape can be customized into various forms, including straight, round, pear-shaped, U-shaped, M-shaped, NU-shaped, Ω-shaped, and single-ended designs. The quartz tube's appearance can also be customized, offering options such as clear, frosted, ruby, gold-coated, semi-gold coated, and semi-white coated finishes. Introduction of Carbon Fibre Heating Element The carbon fiber infrared heating element is a high-tech product that differs from traditional electric heating elements such as metal wires and halogen tubes. It boasts excellent features such as long lifespan, high electrothermal conversion efficiency, far-infrared radiation, energy savings, and environmental protection. The main emitting component of the far-infrared heating tube is composed of inorganic carbon fiber with a carbon... --- ### Thank you - Published: 2024-06-29 - Modified: 2024-07-11 - URL: https://globalquartztube.com/thank-you/ Thank You If you have reached this page, then congratulations, your form has been submitted successfully and we will usually contact you within one business day. Back Home --- ### Production & Quality - Published: 2024-05-11 - Modified: 2024-12-04 - URL: https://globalquartztube.com/production-quality/ Production & Quality How do we produce high-lifetime heating elements? Heating Wire Composition Analysis SPECTRO Test Report Our laboratory engineers conduct composition tests on every batch of resistance wire orders daily. This is a composition analysis test using the SPECTRO alloy composition analyzer, ensuring 100% compliance of all our resistance alloy products with GB/ASTM standards. Metallographic Microanalysis Microscopic examination of the microstructure and internal crystals of the heating wire is conducted to check for defects and determine if the composition of the heating wire is satisfactory. Heating Wire Annealing Request a consultation > Annealing for Softening Heating Wires The heating wire is heated to a certain temperature in an annealing furnace, held for a sufficient time, and then cooled at an appropriate rate. This process can reduce hardness, improve machinability, reduce residual stress, stabilize dimensions, and reduce the tendency for deformation and cracking. Heating Wire Oxidation Heat Treatment The wound heating wire is placed in a high-temperature furnace at 800/900 degrees Celsius for heat treatment, increasing the oxide layer on the surface of the coiled wire to increase surface load and thus improve its lifespan. Electric Testing of Heating Tubes 100% Comprehensive Inspection Each heating wire undergoes rigorous quality inspection before packaging, following these steps: check appearance, ensure uniformity of conductors, check conductor resistance, and test the operation of all quartz heating tubes. Lifetime Testing Routine lifetime testing before shipment. The wire is cycled on for 20 minutes and off for 10 minutes, 600 times under stable voltage, without wire... --- ### Quartz Heating Elements - Published: 2024-05-07 - Modified: 2025-04-17 - URL: https://globalquartztube.com/quartz-heating-elements/ Quartz Heating Elements The production capacity includes 5 production lines with a daily output of 100,000 units of various heating elements and an annual output exceeding 30 million units. Request a consultation > Quartz tube heater elements, also known as infrared heating elements, are a form of radiant heating that uses medium to long waves to directly heat objects. Infrared waves propagate through the air, and when they come into contact with a surface, they release heat energy regardless of the surrounding air temperature. Quartz heating elements belong to a large family with different quartz colors: milky white, ruby red, black, gold, transparent, and sandblasted. They also vary in internal heating wire composition, including iron-chromium-aluminum wire, nickel-chromium wire or tungsten wire, and carbon fiber wire. Additionally, they can be processed in different ways: directly in contact with air or sealed with inert gas, using quartz tubes or halogen tubes. Quartz Tube Heating Elements Structure Applications of Quartz Infrared Heating Elements Household appliances such as ovens, drying equipment, etc. Heating equipment such as far-infrared heaters, quartz heaters, sauna room heating, fireplaces, etc. Heating and sanitizing for medical devices. Request a consultation > Various Colors Quartz Heating Elements Quartz tubes are commonly available in milky white, transparent, ruby red, yellow, black, and red colors. The performance and usage of heating tubes without color are also significantly different. Milky Quartz Heating Elements The milky quartz infrared tube heating elements offers the most consistent heat distribution. This infrared lamp operates at a medium to... --- ### Contact - Published: 2024-04-11 - Modified: 2024-12-04 - URL: https://globalquartztube.com/contact/ Contact Us Contact Us for Inquiries and Assistance Email contact@globalquartztube. com Phone 8615899905965 Address Building 12, Industrial Incubation Park, Innovation Island, Huakecheng, No. 2 Wan Road, Daojiao Town, Dongguan City, Guangdong Province, China. --- ### Products - Published: 2024-04-10 - Modified: 2024-11-26 - URL: https://globalquartztube.com/products/ Our Products Main Offerings Explore our top-quality quartz tubes and customizable tube heaters tailored for your industrial needs. 01 Quartz Tubes Discover our premium quality quartz tubes suitable for various industrial applications. Customization options available to meet specific requirements. Learn more 02 Quartz Tube Heaters Experience efficient and reliable heating solutions with our quartz tube heaters. Tailored designs to optimize performance in industrial processes. Learn more 03 Quartz Tube Heating Element Experience efficient and reliable heating solutions with our quartz tube heating element. Tailored designs to optimize performance in industrial processes. Learn more Why Choose Us? Discover the advantages of partnering with GlobalQT for premium quality quartz tubes and tube heaters. Quality Assured Each quartz product undergoes stringent quality checks to ensure top-notch performance and durability. Customization Excellence We excel in customizing quartz products to fit your specific requirements, providing unique solutions for your business. Partner with Us Today Experience the unbeatable quality and service of GlobalQT. Contact us now for your quartz tubing needs. Request a consultation > --- ### Blog - Published: 2024-04-10 - Modified: 2025-04-17 - URL: https://globalquartztube.com/blog/ Informative Blogs Partner with Us Today Experience the unbeatable quality and service of GlobalQT. Contact us now for your quartz tubing needs. Request a consultation > --- ### Home - Published: 2024-04-09 - Modified: 2025-03-12 - URL: https://globalquartztube.com/ Your Trusted Quartz Tube and Heaters Manufacturer Customizable quartz tubes and heaters tailored to your needs. Quality products at competitive prices. Request a consultation > 1988Founded 40,000㎡Factory area 300+Current Staff 32Product Patents Main Offerings Our product line features quartz tubes and quartz tube heaters, designed for both high-power industrial applications and low-power household appliances. We stock a variety of standard models and offer customization options to suit your needs. Request a consultation > Quartz Tubes Our quartz tube series includes Milky Quartz Tubes, various shapes of quartz tubes, various colors of quartz tubes, Quartz Capillary Tubes, and Quartz Laser Cavities. We maintain stock of standard models and offer customization options. Quartz Tube Heaters - High Power for Industrial Use Our quartz tube heater series includes single-tube short-wave, double-tube short-wave, medium-wave, carbon medium-wave, ring-shaped, and special-shaped varieties, ideal for high-power heating applications in industrial environments. We maintain stock of standard types and offer customization according to your requirements. Quartz Heating Elements - Low Power for Household Appliances Our quartz tube heater series includes quartz heating elements, halogen tubes, and carbon fiber heating elements in various colors, suitable for low-power household appliances. Customization options are available. About GlobalQT (globalquartztube. com) GlobalQT (globalquartztube. com) was established in 1988 and has over 30 years of professional experience in the quartz electric heating products industry. The company has 385 employees and a 40,000 square meter factory, and has made significant progress since its establishment. We hold 32 design and invention patents and strictly adhere to... --- ### About - Published: 2024-04-08 - Modified: 2024-12-04 - URL: https://globalquartztube.com/about/ About Us GlobalQT (Global Quartz Tube) is a leading name in the production and distribution of customizable quartz tubes and heaters, serving diverse industrial needs with precision and reliability. GlobalQT was established in 1988 and has over 30 years of professional experience in the quartz electric heating products industry. The company has 385 employees and a 40,000 square meter factory, and has made significant progress since its establishment. We hold 32 design and invention patents and strictly adhere to the ISO9001:2015 quality control system. In the past 30 years, GlobalQT has undergone many changes. Today, we are proud to have evolved from a small workshop to a provider of heating solutions for manufacturers worldwide. We are committed to providing competitive quartz tubes and heaters globally. 1988Founded 40,000㎡Factory area 300+Current Staff 32Product Patents We have 11 quartz tube melting furnaces, 7 of which are used for the production of milky white quartz tubes, while the rest are used for the production of other glass tubes, such as transparent quartz tubes, ruby tubes, black tubes, etc. The daily production capacity of quartz glass tubes is 8000 kilograms. Our self-designed automatic quartz tube cutting machine enables more precise control of the quartz tube's tolerance, increasing the production capacity of various types of quartz tubes. we produce over 200,000 quartz lamps and various heating tubes for global manufacturers every day. We also provide custom heating elements. Our FeCrAl (Iron-Chromium-Aluminum) heating wire drawing factory has a daily output of 5000 kilograms of heating wire and... --- ### Heater Quartz Tube - Published: 2024-03-11 - Modified: 2025-04-17 - URL: https://globalquartztube.com/heater-quartz-tube/ Heater Quartz Tube Specializing in the R&D and production of heater quartz tubes for industrial applications, and certified by the ISO9001:2015 quality management system. Request a consultation > Why Choose Heater Quartz Tubes? Quartz Heater tubes are superior to traditional heating sources such as hot air, ceramic, gas, and metal heating tubes. Their characteristics include non-contact heating without the need for an intermediary transfer medium. They can rapidly release a large amount of energy, not only precisely meeting your requirements for the heating area and duration but also offering up to nearly 50% energy savings. Compared to convection and traditional heating methods, infrared quartz tubes are low in energy consumption, high in production efficiency, compact in size, and easy to control, thus achieving better heating effects. Radiation heating is achieved by heat elements releasing electromagnetic rays to convey energy, and its performance is influenced by factors such as the temperature of the heating element, the ability of the heated body to absorb radiant heat, and the shape, position, and distance between the heated body and the heat source. Selecting the appropriate emitter for a product is crucial because the wavelength plays a significant role in the heating process. Short-wave radiation can penetrate some solid materials, ensuring uniform heating; medium-wave radiation is mostly absorbed by the surface of materials, primarily heating the surface. Plastics, water, and water-based materials absorb infrared medium-wave radiation most effectively and directly convert it into thermal energy. Radiation curve graphs of different infrared spectra at the same... --- ### Quartz Tube - Published: 2024-03-06 - Modified: 2025-04-17 - URL: https://globalquartztube.com/quartz-tube/ Quartz Tubes We currently possess 8 quartz tube furnaces, with a daily production capacity of up to 12 tons of quartz tubes. Each quartz tube undergoes a 24-hour high-temperature aging process at 950–1050°C before delivery to ensure safety and reliability. Request a consultation > Our quartz tube series includes transparent quartz tube, milky quartz tubes, quartz capillary tubes, various shapes of quartz Tubes, various colors of quartz tubes . We stock a variety of standard models and offer customization options to suit your needs. For information about quartz tube price, request a consultation. Transparent Quartz Tube Our premium heated stransparent quartz tubes are available in outer diameters ranging from 0. 2mm to 150mm, with lengths from 20mm to 5000mm. We maintain a large inventory of various specifications, so please contact us to discuss your specific size and requirements. We also offer custom high temperature quartz glass tube solutions, including options for round bottoms or closed ends, with excellent thermal shock resistance for use in extreme environments. In addition, we can incorporate frosted glass standard taper joints, ball-and-socket joints, and small flanges for sealing purposes. Our technical team is equipped to perform rough cutting, grinding, or fire polishing on ordered quartz furnace tubes. Request a consultation > Milky Quartz Tube The milky quartz tube has the advantages of being resistant to strong acids and bases, offering high thermal shock resistance and allowing for long-term use below 1050°C. It is widely used for quartz heating elements and is the most economical choice... --- ### Privacy Policy - Published: 2024-03-01 - Modified: 2024-04-07 - URL: https://globalquartztube.com/privacy-policy/ Who we areSuggested text: Our website address is: https://globalquartztube. com. CommentsSuggested text: When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection. An anonymized string created from your email address (also called a hash) may be provided to the Gravatar service to see if you are using it. The Gravatar service privacy policy is available here: https://automattic. com/privacy/. After approval of your comment, your profile picture is visible to the public in the context of your comment. MediaSuggested text: If you upload images to the website, you should avoid uploading images with embedded location data (EXIF GPS) included. Visitors to the website can download and extract any location data from images on the website. CookiesSuggested text: If you leave a comment on our site you may opt-in to saving your name, email address and website in cookies. These are for your convenience so that you do not have to fill in your details again when you leave another comment. These cookies will last for one year. If you visit our login page, we will set a temporary cookie to determine if your browser accepts cookies. This cookie contains no personal data and is discarded when you close your browser. When you log in, we will also set up several cookies to save your login information and your screen display choices. Login cookies last for two days, and screen options... --- --- ## 文章 ### Differences Between Quartz Tubes and Halogen Tubes - Published: 2025-05-07 - Modified: 2025-01-10 - URL: https://globalquartztube.com/differences-between-quartz-tubes-and-halogen-tubes/ - 分类目录: Quartz Tube Quartz tubes and halogen tubes differ significantly in terms of heat resistance, main composition, and application range, as detailed below: 1. Heat Resistance Quartz Tubes: Can be used continuously at 1100°C, with a maximum operating temperature of up to 1450°C, making them suitable for high-temperature applications. Halogen Tubes: Have a maximum working temperature of approximately 800°C, suitable for medium-temperature applications. 2. Main Composition Quartz Tubes: Made from high-grade crystal stone, characterized by high purity. Halogen Tubes: Filled with inert halogen gases, containing a tungsten filament available in white and black varieties. 3. Application Range Halogen Tubes: Can be processed into various shapes (ring, pear, U-shape, C-shape, straight tube) and used as far-infrared heating lamps. They are widely applied in small household appliances such as heaters, radiant stoves, electric fireplaces, coffee makers, beauty devices, and ovens. Quartz Tubes: Have a wide range of applications, including use in light sources, semiconductors, optical communications, military industry, metallurgy, construction materials, chemical industry, machinery, power generation, and environmental protection. Conclusion In summary, quartz tubes are ideal for industrial applications requiring high heat resistance and broad utility, while halogen tubes are favored for their ease of processing and versatility in shape, making them popular in small household appliances. Choosing the right material based on specific needs can effectively enhance product performance and lifespan. GlobalQT specializes in high-quality quartz tubes and heating solutions. For more information, visit our website or contact us at contact@globalquartztube. com. --- ### Differences Between Heating Wire and Quartz Tube Heating - Published: 2025-04-08 - Modified: 2025-01-10 - URL: https://globalquartztube.com/differences-between-heating-wire-and-quartz-tube-heating/ - 分类目录: Quartz Tube The difference between heating wire and quartz tube is quite simple: heating wire is just a heating wire, while quartz tube heating consists of a heating wire + quartz tube. Naturally, the price of quartz tube heaters is higher. In terms of performance, the differences are as follows: Prevents foreign objects from entering the heating wire: The quartz tube outer layer effectively prevents foreign objects from entering the heating wire. Statistics show that this design can extend the lifespan of the heating wire by 1. 5 times. Additionally, the quartz tube provides extra physical protection, reducing the chances of wear and damage to the heating wire. Improved heating efficiency: Heating wire mainly heats the air, with the heat then being transferred by air convection. On the other hand, quartz tube heaters work by heating the quartz tube with a heating wire, which subsequently emits infrared radiation. Infrared heating efficiency can be 30% to 50% higher than traditional convection heating, as it can transfer energy directly to the object being heated without relying on air as a medium. Studies indicate that under the same conditions, quartz tube heating can reach the desired temperature faster. Significant energy savings: Since quartz tubes have higher heat efficiency, they are naturally more energy-saving compared to heating wires. For heaters, heat loss from quartz tube heating in windy environments can be reduced by about 20%, while heating wires see a significant decrease in heating effectiveness under similar conditions. This is because quartz tube heaters use infrared... --- ### Cleaning, Drying, and Use of Laboratory Glassware Explained - Published: 2025-03-05 - Modified: 2025-01-10 - URL: https://globalquartztube.com/cleaning-drying-and-use-of-laboratory-glassware-explained/ - 分类目录: Quartz Tube This article provides a detailed explanation of the cleaning, drying, and usage methods for laboratory glassware. It is divided into three parts to facilitate understanding and application. I. Cleaning of Glassware 1. Shaking Water Wash Basic explanation of the shaking water wash method. 2. Brushing for Stubborn Stains If there are substances on the inner wall that are not easily removed, use a brush to clean. The process involves: Disposing of the waste liquid first. Adding half the amount of water. Selecting an appropriate brush and holding it correctly to scrub. Repeat the process as necessary until the glassware is thoroughly cleaned. Cleaning Illustration: (image labeled "Washing 2. 1. png") 3. Final Rinse After brushing, rinse the glassware by shaking it several times with water. If necessary, use distilled water to rinse three times. In a clean state, the water will spread evenly without forming droplets (as shown in the left image), whereas in an unclean state, water droplets will remain on the surface (as shown in the right image). If the glassware contains water-insoluble substances like alkalis, carbonates, or basic oxides, add hydrochloric acid first to dissolve them, then rinse with water. If grease or oil is present, use hot sodium carbonate solution followed by brushing. Alternatively, use a brush with a small amount of detergent. For narrow-necked instruments that are difficult to brush, rinse with a small amount of aqua regia or chromic acid solution. If these methods still fail, soak the item in a more concentrated solution... --- ### High-Transparency Quartz Tubes: Key Performance Advantages - Published: 2025-02-07 - Modified: 2025-01-10 - URL: https://globalquartztube.com/high-transparency-quartz-tubes-key-performance-advantages/ - 分类目录: Quartz Tube The application of high-transparency quartz tubes is expanding, with their increased transparency reflecting significant performance advantages across various fields. Here are the specific benefits of high-transparency quartz tubes in practical applications: 1. Enhanced Light Transmission Efficiency High-transparency quartz tubes mean minimal light loss during transmission, which is crucial for applications requiring high light transmission efficiency, such as fiber optic communication, laser equipment, and optical sensors. For example, quartz tubes with transmission loss below 0. 1% can significantly improve signal quality and efficiency in fiber optic communication. 2. Improved Spectral Purity In fields like spectral analysis and precision measurement, high-transparency quartz tubes ensure that the transmitted light signal remains free of additional spectral components, enhancing the accuracy of analysis results. For instance, quartz tubes with over 95% transmission in the ultraviolet range are widely used in precision spectrometers, ensuring high-purity light signal output. 3. Reduced Light Scattering High-transparency quartz tubes typically exhibit minimal internal defects, which significantly reduce light scattering. This is particularly important for applications requiring high-quality imaging or light beams, such as microscopes, telescopes, and laser equipment. For example, in laser cutting devices, high-transparency quartz tubes ensure the concentration and stability of the laser beam. 4. Increased System Resolution In imaging systems, high-transparency quartz tubes can effectively reduce optical blurring, improving image resolution and clarity. Case studies show that imaging systems using high-transparency quartz tubes achieve more than a 10% increase in resolution, ensuring precise detail representation. 5. Lower Maintenance Costs Due to the clean interior of high-transparency quartz... --- ### High-Purity Quartz Tubes: Usage & Safety Tips in Furnaces - Published: 2025-01-07 - Modified: 2024-10-26 - URL: https://globalquartztube.com/high-purity-quartz-tubes-usage-safety-tips-in-furnaces/ - 分类目录: Quartz Tube Quartz tubes start softening when exposed to temperatures above 1265°C. For safety and optimal performance, it's recommended not to exceed a furnace temperature of 1210°C for more than three hours. The temperature resistance of quartz tubes is directly related to their purity—the higher the purity, the better the heat resistance. Key Recommendations for Using Quartz Tubes in Tube Furnaces Use of Ceramic Plugs: It is essential to place ceramic plugs inside the quartz tube when heating in a tube furnace. This helps maintain an even thermal field and improves heat treatment results. Install two plugs on each side (a total of four plugs). This setup helps prevent the O-ring seals in the flanges from deforming due to heat. Note that O-ring seals cannot withstand temperatures exceeding 260°C, which may compromise the seal. Hydrogen Gas Safety Precautions: Avoid introducing hydrogen gas into the furnace unless its concentration is well below the explosive limit. If hydrogen gas must be used, ensure thorough safety measures and avoid personnel presence on either side of the furnace during gas introduction. Stainless steel tubes are recommended over quartz for hydrogen use due to their higher thermal conductivity. Water cooling is needed at both ends of the stainless steel tube to prevent overheating of the silicone O-ring seals. Material Handling Inside the Furnace: Ensure no reactive substances remain inside the quartz tube that might interact with SiO₂, maintaining a clean environment. When heating materials, use a boat-shaped crucible rather than placing materials directly on the quartz tube... --- ### Proper Use and Maintenance of Quartz Tubes in Tube Furnaces - Published: 2024-12-31 - Modified: 2024-10-26 - URL: https://globalquartztube.com/proper-use-and-maintenance-of-quartz-tubes-in-tube-furnaces/ - 分类目录: Quartz Tube In our interactions with customers, we often receive inquiries from users of tube furnaces looking to purchase quartz tubes. To assist our customers in properly using quartz tubes within tube furnaces, we are sharing some practical tips on usage and maintenance. These methods not only ensure the efficient operation of the equipment but also help to minimize wear and extend the lifespan of quartz tubes. Structure of Tube Furnaces A tube furnace consists of a heating body and a waste heat recovery system. The heating body features a chimney baffle, with a high-temperature gas outlet located below the baffle. The waste heat recovery system includes an air preheater, which comprises both non-condensing and condensing air preheaters. Tube furnaces are primarily used for experiments and small-scale production in universities, research institutes, and industrial enterprises. The equipment offers advantages such as reliable operation, simple design, high temperature control accuracy, good insulation, wide temperature range, uniform furnace temperature, multiple temperature zones, and optional atmospheres, including vacuum conditions. Usage and Maintenance of Quartz Tubes Due to the unique structure of tube furnaces, the furnace tube plays a critical role as the reaction chamber and working area in production testing. The operation of the furnace tube is closely linked to gas, pressure, and operating methods. Thus, it is essential to pay attention to the following aspects when using quartz tubes in tube furnaces: 1. Softening Point and Usage Duration of Quartz Tubes The softening point of quartz tubes is 1,270°C. At 1,200°C, the continuous usage... --- ### Impurities Impact Quartz Tubes' High-Temperature Stability - Published: 2024-12-24 - Modified: 2024-10-24 - URL: https://globalquartztube.com/impurities-impact-quartz-tubes-high-temperature-stability/ - 分类目录: Quartz Tube Quartz tubes are widely used in high-temperature environments such as semiconductors, optical fibers, and chemical industries due to their excellent thermal resistance. The high-purity silica structure ensures stability under extreme temperatures, but the presence of impurities can significantly impact performance. This article will analyze how impurities affect the high-temperature stability of quartz tubes and explore ways to improve their stability through process optimization. The Impact of Impurities on the High-Temperature Stability of Quartz Tubes 1. Thermal Expansion Coefficient Changes Different impurities have varying thermal expansion coefficients, which may cause slight deformation during heating and cooling, affecting the dimensional precision and sealing of quartz tubes in high-temperature equipment, especially in precision industries like semiconductor manufacturing. Even small changes in dimensions can lead to instability or seal failure, disrupting the production process. 2. Thermal Conductivity Changes The presence of impurities can reduce the thermal conductivity of quartz tubes, affecting their heat transfer efficiency at high temperatures. Uneven heat distribution may cause localized overheating, leading to stress concentration or reduced equipment efficiency. This is particularly important in heating devices and chemical reactors, where localized failures can impact overall performance and safety. 3. Lowering of Softening Point Certain impurities can significantly lower the softening point of quartz tubes, causing them to lose mechanical strength at lower temperatures. For equipment that operates continuously in environments above 1000°C, a reduced softening point will severely impact the service life of the quartz tubes, leading to premature equipment failure or more frequent maintenance, thus increasing production costs. 4.... --- ### Impurities' Effects on Quartz Tube Stability and Performance - Published: 2024-12-17 - Modified: 2024-10-24 - URL: https://globalquartztube.com/impurities-effects-on-quartz-tube-stability-and-performance/ - 分类目录: Quartz Tube Quartz tubes are transparent glass tubes composed primarily of silicon dioxide, widely used in various high-demand applications. Their stability can be affected by different types of impurities, and each type of impurity has a unique impact. By controlling the type and concentration of impurities, the performance of quartz tubes can be optimized to meet the needs of industries such as optics, electronics, and chemicals. This article explores how different impurities affect the physical and chemical stability of quartz tubes: Alkali Metal Ions (e. g. , Na+, K+): These impurities generally increase the thermal expansion coefficient of quartz tubes, significantly reducing their thermal stability. At high temperatures, alkali metal ions may react with silicon dioxide to form silicates, which affects the transparency of the quartz tube and significantly reduces mechanical strength. In optical and high-temperature applications, the content of alkali metals must be strictly controlled. Aluminum Ions (Al3+): The presence of aluminum ions often darkens the color of quartz tubes, affecting transparency. Aluminum ions may also reduce the chemical stability and mechanical strength of quartz tubes, especially in acidic environments, where they accelerate the corrosion process. Controlling aluminum impurities is crucial for quartz tubes used in chemical reactors. Boron Ions (B3+): Boron is commonly used as an additive in the manufacturing of quartz tubes, as it can enhance their strength and thermal stability. However, excessive boron content may increase the refractive index of quartz tubes, affecting their optical properties. In the production of optical fibers or laser equipment, precise control of... --- ### Factors Affecting Quartz Tube Stability at High Temperatures - Published: 2024-12-10 - Modified: 2024-10-24 - URL: https://globalquartztube.com/factors-affecting-quartz-tube-stability-at-high-temperatures/ - 分类目录: Quartz Tube Quartz tubes (primarily composed of silicon dioxide, SiO2) exhibit chemical stability at high temperatures, which is influenced by several key factors. The primary factors include: 1. Temperature As the temperature increases, the chemical stability of quartz tubes remains generally constant. At high temperatures (above 1100°C), quartz tubes may undergo structural changes such as lattice distortion or phase transitions. However, quartz tubes can typically withstand temperatures as high as 1400°C without significant chemical reactions. For this reason, quartz tubes are commonly used in industrial applications involving extreme temperatures, such as semiconductor manufacturing or high-temperature chemical reactions. 2. Atmosphere The stability of quartz tubes varies depending on the chemical atmosphere. In pure oxygen or inert gases like argon or nitrogen, quartz tubes are highly stable. However, in atmospheres containing oxygen or halogens, especially at temperatures above 500°C, quartz tubes may react with these gases. For example, quartz tubes may react with oxygen to form silicates. This reaction is particularly important to consider in industrial applications involving corrosive gases. 3. Impurities The presence of impurities in quartz tubes can significantly affect their chemical stability. For instance, metal impurities like iron and aluminum can react with silica at high temperatures to form complex silicates, reducing the stability of the material. To improve the purity of quartz tubes, high-purity raw materials and special refining processes are commonly used in production. This is especially critical in fields that require extremely high material purity, such as the optical and electronics industries. 4. Physical State Changes Although quartz... --- ### Vacuum Quartz Tube Furnaces in Laboratory Research - Published: 2024-12-03 - Modified: 2024-10-24 - URL: https://globalquartztube.com/vacuum-quartz-tube-furnaces-in-laboratory-research/ - 分类目录: Quartz Tube Vacuum laboratory quartz tube furnaces play an indispensable role in scientific experiments. Their design and performance are critical in a wide range of research fields, making them essential tools for many applications. High-Temperature Resistance First, the high-temperature resistance of quartz tube furnaces is one of their key advantages. Quartz, as a mineral with a high melting point, can withstand extreme temperatures, making it ideal for experiments that require elevated thermal conditions. For example, in materials science, researchers often need to study the physical and chemical properties of materials under high temperatures. In such cases, the quartz tube furnace becomes an invaluable tool. Precision in a Vacuum Environment The vacuum environment plays a crucial role in ensuring the accuracy of experimental results. By reducing interactions between substances in the absence of air, interference factors are minimized, which improves the precision of the results. The vacuum design of the quartz tube furnace meets this need, making experimental outcomes more reliable. Ease of Use and Safety Additionally, quartz tube furnaces offer simplicity in operation and a high level of safety. Their design allows researchers to easily adjust the internal temperature and vacuum levels, enabling precise control over experimental conditions. Moreover, the excellent sealing performance of these furnaces effectively prevents the leakage of harmful substances, ensuring the safety of the operator. Wide Range of Applications Across multiple disciplines such as biology, chemistry, and physics, quartz tube furnaces find broad applications. In chemical synthesis, for instance, researchers use quartz tube furnaces to carry out reactions... --- ### Quartz Tube Sealing Process: Key Steps and Considerations - Published: 2024-11-26 - Modified: 2024-10-24 - URL: https://globalquartztube.com/quartz-tube-sealing-process-key-steps-and-considerations/ - 分类目录: Quartz Tube The quartz tube sealing process requires highly precise control and professional skills. This article outlines the key operational steps and emphasizes important safety and quality control measures. 1. Preparation Material Preparation:Ensure sufficient clean quartz tubes, quartz tube chambers (if required), sealing materials (such as silicone or glass powder), and necessary auxiliary tools. Equipment Preparation:Prepare the quartz tube sealing machine, heating equipment (such as a torch or electric furnace), gloves, goggles, and other protective gear. Environmental Preparation:Ensure the working area is clean and dust-free to prevent any impurities from entering the quartz tube, which may compromise the sealing quality. 2. Quartz Tube Cleaning Initial Cleaning:Clean the inside and outside of the quartz tube with deionized water and detergent to remove grease, dust, or other contaminants. Ultrasonic Cleaning:Place the quartz tube into an ultrasonic cleaning machine, using deionized water and detergent for deep cleaning to remove any remaining impurities. Drying:Thoroughly dry the quartz tube using lint-free paper towels or drying equipment to avoid any moisture retention. 3. Quartz Tube Sealing Assembly:If necessary, insert the quartz tube chamber into the quartz tube, ensuring proper alignment. Preheating:Preheat the sealing area of the quartz tube using heating equipment (such as a torch or electric furnace) to remove surface moisture and improve the sealing quality. Applying Sealant:Evenly apply the sealing material (such as silicone or glass powder) to the sealing area of the quartz tube. Ensure the coating is uniform and free of air bubbles. Heating the Seal:Heat the area where the sealing material has been... --- ### Purification Methods for Reducing Impurities in Quartz Tubes - Published: 2024-11-19 - Modified: 2024-10-24 - URL: https://globalquartztube.com/purification-methods-for-reducing-impurities-in-quartz-tubes/ - 分类目录: Quartz Tube Quartz tubes are widely used in industrial and laboratory applications due to their excellent heat resistance, chemical stability, and transparency. However, in certain high-purity applications, such as semiconductor manufacturing, optical instruments, and fiber optics, impurities in quartz tubes can negatively impact product performance. Therefore, removing or reducing impurities in quartz tubes is crucial. Below are some common purification methods along with their advantages and disadvantages: 1. Chemical Cleaning Method Overview: Use high-purity solvents (e. g. , deionized water, ammonia, hydrofluoric acid), combined with ultrasonic cleaning, rinsing, or soaking, to remove impurities on the surface of quartz tubes. Technical Details: It is recommended to set the ultrasonic cleaning frequency above 40 kHz, with hydrofluoric acid concentration between 10-15%. Advantages: Effectively removes inorganic and organic contaminants from the surface. Simple to operate and feasible for both laboratory and industrial environments. Disadvantages: Requires special safety measures, as chemicals like hydrofluoric acid can be hazardous. May have environmental impacts, requiring proper waste treatment. 2. High-Temperature Treatment Method Overview: Place the quartz tube in a high-temperature furnace to volatilize impurities, thereby purifying the quartz tube. Technical Details: The recommended temperature range is 800-1,200°C, depending on the type of impurities and the heat resistance of the quartz tube. Advantages: Effectively removes volatile impurities, enhancing purity. Minimal impact on raw material modification. Disadvantages: High energy consumption and relatively high costs. Requires quartz tubes with high heat resistance, which may affect structural integrity. 3. Gas Purification Method Overview: During the quartz tube manufacturing process, use high-purity gases (e.... --- ### Electrical Testing for Quartz Tubes in Heating Devices - Published: 2024-11-12 - Modified: 2024-10-24 - URL: https://globalquartztube.com/electrical-testing-for-quartz-tubes-in-heating-devices/ - 分类目录: Quartz Tube Quartz tubes, made from high-purity silicon dioxide, are a specialized form of industrial glass with exceptional physical and chemical properties. Due to their efficient heat-generating capabilities, they are commonly used in devices such as electric heaters, ovens, and other heating equipment. Key Testing Methods for Quartz Tubes 1. Resistance Testing Resistance testing helps determine whether a quartz tube is functioning properly. Equipment: Use a multimeter set to “continuity test” mode. Procedure: Attach the red and black probes to each end of the quartz tube. A properly functioning quartz tube should cause the multimeter’s buzzer to sound, with the needle pointing to zero, indicating continuity. If there is no sound and the needle points to infinity, it suggests internal damage within the quartz tube. 2. Power Supply Voltage Testing This test ensures that the quartz tube receives the correct voltage for optimal performance. Equipment: Set the multimeter to the "AC 250V" range. Procedure: Place the probes at the power supply terminals of the quartz tube. A reading close to 220V AC indicates that the power supply voltage is normal. Deviations from this reading may signal issues with the power supply or the tube’s connections. Handling and Maintenance Tips Safe Handling Quartz tubes are fragile and require careful handling: Always carry them gently to avoid breakage. Consider the tube's coefficient of thermal expansion when used with other materials to prevent cracking or damage under heat. Post-Use Cleaning To maintain the quartz tube’s high purity and prolong its service life: Rinse with deionized... --- ### Wiring Methods for Infrared and 380V Heating Elements - Published: 2024-11-04 - Modified: 2024-10-24 - URL: https://globalquartztube.com/wiring-methods-for-infrared-and-380v-heating-elements/ - 分类目录: Uncategorized Electric heating elements only work and generate heat when powered. Many people often ask: Do infrared heating elements have positive and negative poles? Or do they differentiate between live and neutral wires? How do you connect a 220V heating element to a 380V power supply? Today, let's briefly discuss the wiring methods for infrared heating elements. Wiring Method for Infrared Heating Elements Infrared heating elements are resistance-based heating elements. When connecting to direct current (DC), there is no distinction between positive and negative poles. When a heating element rated for 220V is connected to a 220V alternating current (AC), there is no need to differentiate between live and neutral wires. You can directly connect the wires, but ensure that the terminal screws are tightly secured and that the connections are properly insulated with tape. Connecting to 380V Industrial Power When connecting a heating element to a 380V industrial power supply, you must first confirm the voltage and the live and neutral wires. It's essential to note the rated voltage of the heating element. If the voltage is mixed up, it can result in the heating element burning out or insufficient power. Wiring Method for Heating Elements Rated at 380V The wiring method for a 380V heating element is also known as the "Delta Connection. " When wiring a 380V heating element, divide the heating elements into three equal groups. Then, connect the ends of each group of heating elements in series to form three connection points. Next, connect the three-phase... --- ### Causes of Infrared Heating Element Bursting and Precautions - Published: 2024-10-31 - Modified: 2024-10-24 - URL: https://globalquartztube.com/causes-of-infrared-heating-element-bursting-and-precautions/ - 分类目录: Uncategorized During the use of infrared heating elements, improper usage or substandard product quality often leads to tube bursting. In mild cases, you only need to replace a component, but in severe cases, it may cause a fire, resulting in significant economic losses. To help prevent and avoid such issues, we will share some insights on this topic. Analyzing the Causes of Tube Bursting: Product Quality Issues and Improper Usage Product Quality Issues Substandard Raw Material Quality: High-quality infrared heating elements are produced using premium dehydroxylated quartz tubes. However, many manufacturers (in fact, most of them) use non-dehydroxylated quartz tubes to save costs. More conscientious manufacturers may use high-grade, non-dehydroxylated quartz tubes, but a small portion of them only care about selling their products without considering their performance in actual use. Inadequate Production Process: If the sealing process of the quartz tube is not handled properly, slow air leakage can occur. This can cause the tube to burst within seconds of use. Incorrect Model Selection: If you select a heating element designed for 220V when your system requires 380V, and you use improper wiring, it will cause the heating element to overheat and eventually burst. Inadequate Manufacturer Design: If the power per meter is designed too high, the internal temperature of the tube can rise excessively, causing expansion and increasing the likelihood of a tube burst. Insufficient Protective Gas: If the protective gas does not meet the required process standards, it can lead to heat buildup, resulting in a tube burst.... --- ### How to Test Infrared Heating Elements with a Multimeter - Published: 2024-10-28 - Modified: 2024-10-24 - URL: https://globalquartztube.com/how-to-test-infrared-heating-elements-with-a-multimeter/ - 分类目录: Uncategorized There are many standards to evaluate the quality of heating elements. How can we simply test the quality of a heating element in our daily work and life? Today, I will share with you how to use a multimeter to test the quality of a heating element. Set the multimeter to the 1K ohm range, and place the two probes on both ends of the heating wire. If the multimeter displays a certain value, it means the heating wire is functioning normally. Take note of the resistance value. If no value is displayed, it indicates that the heating wire has a break, and the heating element cannot be used. By using the formulas 220250/resistance value or 380380/resistance value, you can calculate the power. If the calculated power deviates by less than 5% from the rated power, the heating element is good. If the power deviation is large, it indicates that the manufacturing process is substandard. If the power value is excessively high, such as over 10,000, it means there is a short circuit in the heating wire, which could lead to a fire or other electrical malfunctions. In this case, the heating element should not be used. GlobalQT specializes in manufacturing high-quality quartz heating elements. For more information, visit our website or contact us at contact@globalquartztube. com. --- ### How Hot Can Carbon Fiber Heating Elements Get? Temp Test - Published: 2024-10-24 - Modified: 2024-10-24 - URL: https://globalquartztube.com/how-hot-can-carbon-fiber-heating-elements-get-temp-test/ - 分类目录: Carbon Fiber Heating Elements Many customers who have never used carbon fiber heating elements often ask, “How hot can carbon fiber heating elements get? ” Today, I’ll use images and a video to show you just how high the surface temperature of carbon fiber infrared heating elements gets once activated. Appearance of Carbon Fiber Heating Elements Before and After Activation When inactive, carbon fiber heating elements appear transparent black. Once activated, they turn a bright orange-yellow, resembling the color of burning charcoal. The industrial version of carbon fiber heating elements takes about 10 seconds to activate, while the hollow carbon fiber heating element (for household use) takes about 3 seconds. Surface Temperature Test Using professional equipment, we measured the surface temperature of the heating element after activation. A piece of paper was placed near it and was instantly ignited. Activated carbon fiber heating element surface temperature exceeds 500°C. A Meeting Between a Cigarette and the Heating Element Finally, we brought a cigarette close to the heating element to see what would happen. Watch the video for a more direct and vivid demonstration. https://youtube. com/shorts/_xO68MkXUC4? feature=share Now, do you understand just how high the surface temperature of a carbon fiber heating element can get after activation? Additional Knowledge Carbon fiber heating elements are classified by shape into the following types: straight heating elements with core rods, U-shaped heating elements, pear-shaped heating elements, and specially-shaped heating elements. Performance advantages include energy savings, no decay over time, corrosion resistance, fast heating, short thermal lag, the ability to... --- ### Power Calculation for Carbon Fiber Heating Elements - Published: 2024-10-21 - Modified: 2024-09-30 - URL: https://globalquartztube.com/power-calculation-for-carbon-fiber-heating-elements/ - 分类目录: Uncategorized Simple Calculation Method for Drying Room Heat Power Regarding how much heating power a drying room requires, I’d like to share a simple calculation method I’ve summarized. Since it’s simple, it may not be entirely precise, so researchers should not rely on this approach. This article is intended for those who plan to use carbon fiber heating elements to DIY drying ovens or baking ovens. Let's take one of our customers as an example. They originally used a combustion furnace (burning pellets or wood scraps). Due to environmental reasons, they wanted to switch to electric heating elements. The drying room walls were insulated with cotton, and the material being dried was semi-dry pine wood. The required drying temperature was to reach 80°C within 2 hours. Basic Physics Knowledge (All parameters can be found via search engines): Weight = Density x Volume Heat = Power x Time Heat required to raise the temperature of an object = Specific Heat Capacity x Temperature Difference Specific heat capacity of wood: 1. 72 x 10^3 J/(kg. K) Specific heat capacity of air: 1. 003 x 10^3 J/(kg. K) Density of pine wood: 0. 5~0. 7 x 10^3 kg/m³, use 0. 6 x 10^3 Density of air: 1. 29 kg/m³ Volume: Assume wood fills 70% (this ensures the power calculation won’t be too low), air is calculated at 15 cubic meters Temperature difference: 90°C - 0°C (assuming winter low temperatures of 0°C) Step 1: Calculate the Power Required to Heat the Wood Calculate the weight... --- ### Are Carbon Fiber Heating Elements Safe for Infrared Heat? - Published: 2024-10-17 - Modified: 2024-09-30 - URL: https://globalquartztube.com/are-carbon-fiber-heating-elements-safe-for-infrared-heat/ - 分类目录: Uncategorized When powered on, carbon fiber heating elements emit a soft orange-yellow light and heat objects through infrared radiation. Some individuals are highly sensitive to the term "radiation" and are concerned about whether it might harm the human body. If one were to delve deeply into the science of infrared, there could be numerous academic papers written on the topic. However, it can be stated with certainty, based on centuries of scientific research, that infrared radiation is harmless to humans. From a practical perspective, life on Earth has thrived under the infrared radiation of the sun for billions of years. Infrared Cooking: How Infrared Heats a Roast Duck Let’s begin by explaining infrared and infrared heating. Infrared radiation is a type of invisible light, as seen in the spectrum chart. Beyond visible light, there is infrared radiation, ultraviolet rays, X-rays, and more. Spectrum Chart Some heating tubes on the market, when activated, appear very glaring and give off an intense heat that makes people hesitant to approach. It is important to distinguish between these two sensations: the glare is caused by visible light, while the heat is produced by infrared radiation. Carbon fiber heating elements emit a soft light without causing glare when activated, yet their surface temperature remains impressively high. If you place your skin close to it, you can literally smell the “scent” of protein cooking. Hence, it's critical to exercise caution when using these elements. How Infrared Radiation Heats Infrared radiation heating operates by emitting infrared radiation in... --- ### Infrared vs UV Heating Tubes: Differences in Industrial Use - Published: 2024-10-14 - Modified: 2024-10-24 - URL: https://globalquartztube.com/infrared-vs-uv-heating-tubes-differences-in-industrial-use/ - 分类目录: Uncategorized Infrared heating tubes and UV lamps are two commonly used lamps in industrial production equipment. Do you know the differences between them? Here is a brief introduction to the distinctions between these two types of lamps: Infrared Heating Tubes Infrared heating/industrial lamps are made of blown or pressed quartz glass and are a type of reflector lamp that can provide precisely controlled energy radiation. They are simple, safe, transparent, and easy to maintain and transport. The application of red glass coating can reduce visible light (glare) by 75%. Quartz glass has high mechanical and thermal strength, making it resistant to sudden cooling and water splashing impacts. Infrared heating/industrial lamps do not require a ballast starter and are not limited by voltage when illuminated. Industrial Infrared Heating Tubes Linear double-ended quartz heating tubes, made of high-quality quartz material, are an efficient heating source that emits shortwave infrared radiation. Some have a reflective layer, and the heating filament is supported by a quartz core rod to prevent filament vibration. They offer high efficiency, rapid heat transfer, responsive control, compact structure, and lightweight features. These tubes are widely used in the semiconductor industry for heating electronic wafers, blowing PETP bottles, reflow soldering equipment, drying fillers, drying paint in automobile repairs, medical applications, toner fixation in copiers, melting solder on printed circuit boards, and heating and sterilizing food, among other applications. Function of UV Lamps UV lamps must be used in a sealed space to achieve disinfection. The disinfection range of a UV lamp... --- ### Will Carbon Fiber Elements Break if Splashed with Water? - Published: 2024-10-10 - Modified: 2024-10-24 - URL: https://globalquartztube.com/will-carbon-fiber-elements-break-if-splashed-with-water/ - 分类目录: Uncategorized When a carbon fiber heating element is turned on, its surface temperature can reach approximately 500°C. If water accidentally splashes onto it during operation, will it shatter like glass? In daily life, many people have experienced a glass cup cracking when hot water is poured into it during winter. Why does this happen? It’s because ordinary glass has poor thermal conductivity. When hot water is poured into the glass cup, the inner wall of the cup expands due to heat, but the heat transfer is slow. The outer wall doesn’t expand as much, causing uneven stress between the inner and outer walls, which leads to the cup cracking. Will Our Carbon Fiber Quartz Heating Element Have an Accident if Splashed with Water? If the surface temperature of our carbon fiber quartz heating element is very high and it gets splashed with water during use, will an accident occur? Watch the video to find out. https://youtube. com/shorts/WETIMaThZgA? feature=share High-quality carbon fiber heating elements are made using premium dehydroxylated quartz tubes. Compared to ordinary quartz tubes, dehydroxylated quartz tubes undergo an additional 24-hour high-temperature treatment process, which explains the price difference. This is one of the main reasons for the price variation of quartz tubes or quartz heating elements on the market. How to Identify High-Quality Carbon Fiber Heating Elements When choosing a carbon fiber heating element, how can you tell if the heating element you’ve purchased is made of high-quality quartz or is a substandard product? While electrical performance testing will... --- ### How to Prolong the Lifespan of Carbon Fiber Heating Elements - Published: 2024-10-07 - Modified: 2024-10-24 - URL: https://globalquartztube.com/how-to-prolong-the-lifespan-of-carbon-fiber-heating-elements/ - 分类目录: Uncategorized Carbon fiber heating elements emit far-infrared rays with strong penetration and excellent heating efficiency, making them widely used in industries such as agriculture, chemical processing, and consumer goods. Their primary applications include drying, heating, insulation, and roasting. The typical lifespan of a carbon fiber infrared heating element is around 6,000 hours. With proper maintenance, the lifespan can be extended, with many customers reporting usage periods of up to 2 or even 4 years. So, how can daily maintenance help extend the service life of carbon fiber infrared heating elements? Just like our cars, industrial equipment also requires regular and irregular maintenance to ensure optimal performance. 1. Handle with Care During Installation According to market feedback, the most common reason for heating element failure is damage to the quartz tube, which prevents the heating element from functioning properly. The quartz tube encasing the heating element is fragile, so it is crucial to handle it carefully during installation to avoid damage. Excessive force can break the quartz tube, disrupt the vacuum environment, and shorten the heating element's lifespan. 2. Keep the Environment Clean Carbon fiber heating elements are suitable for any heating, drying, or insulation applications, but they perform best in a clean environment. If there is significant dust or oil buildup, gently wipe the surface with a damp cloth to remove any debris. This prevents dirt from affecting heat transfer and causing localized overheating of the quartz tube, which could impact both the lifespan and heating efficiency. 3. Special Considerations for... --- ### 4 Easy Ways to Calculate Carbon Fiber Heating Element Power - Published: 2024-10-03 - Modified: 2024-10-05 - URL: https://globalquartztube.com/4-easy-ways-to-calculate-carbon-fiber-heating-element-power/ - 分类目录: Uncategorized Many customers are unsure how to confirm the voltage and power of the previously used heating elements when choosing carbon fiber heating elements. Today, let's discuss a few simple methods to determine the power of heating elements. 1. Checking the Heating Element Cap This is the simplest method. Generally, the caps of heating elements from reputable manufacturers are marked with rated parameters. However, there may be cases where customers request not to print these parameters for special reasons. If you encounter such a situation, you can search for the manufacturer online and have a professional guide you in confirming the heating element parameters. If the cap has no parameters, there could be two reasons: either you did not contact a direct supplier, or the manufacturer is not reputable. 2. Checking the Equipment Nameplate For any equipment produced by a reputable manufacturer, there should be a nameplate with various parameters, such as size, weight, rated voltage, rated power, manufacturing date, etc. How do you calculate the power of a single heating element based on the total power of the equipment? It's simple: count the number of heating elements in the equipment, then divide the total power of the equipment by the number of elements to get a reference value for the power of a single heating element. Then, based on the equipment's rated voltage and wiring method, determine the rated voltage. If you're not experienced enough, consult a professional to check the circuit diagram. An even simpler way is to search... --- ### Why Carbon Fiber Heating Elements Don't Need a Ballast - Published: 2024-09-30 - Modified: 2024-10-05 - URL: https://globalquartztube.com/why-carbon-fiber-heating-elements-dont-need-a-ballast/ - 分类目录: Uncategorized The linear carbon fiber heating elements with wires on both ends look very similar to traditional fluorescent lamps. As a result, some customers may ask, “Do they need a starter or ballast? ” The clear answer is “No. ” Carbon fiber heating elements are resistive heating elements, operating under the same principle as traditional incandescent lighting. The main function of a carbon fiber heating element is heating, while the primary function of an incandescent bulb is illumination. Today, we will explain the working principles of incandescent lamps and fluorescent lamps, so you can understand why resistive heating elements do not require a starter. Carbon Fiber Heating Elements Working Principle of Incandescent Lamps:Incandescent lamps are a type of thermal radiation source, with a conversion efficiency of electrical energy to visible light of only 2% to 4%. Despite this low efficiency, incandescent lamps have excellent color rendering, continuous spectra, and are convenient to use, which is why they continue to be widely used even after the government announced a ban on their production. When lit, the filament of an incandescent lamp reaches a temperature of 3000°C, and it is this high temperature that causes the bulb to emit white light. The entire lighting process does not require the ionization of inert gas using high voltage, unlike fluorescent lamps; hence, no starter or ballast is needed. Carbon fiber heating elements operate similarly to incandescent lamps. Upon being energized, they directly act on the filament, converting electrical energy into heat energy and a small... --- ### Why Carbon Fiber Heating Tubes Smoke During First Use - Published: 2024-09-27 - Modified: 2024-10-05 - URL: https://globalquartztube.com/why-carbon-fiber-heating-tubes-smoke-during-first-use/ - 分类目录: Uncategorized Today, I’d like to share with everyone why the surface of a carbon fiber heating tube may emit smoke during its first use. Background: This customer works in the printing industry. The video the customer sent clearly showed smoke when the heating tube was powered on for the first time. The customer was worried that the heating tube was leaking, but that wasn't the case. So, why does smoke appear? Allow me to explain in detail. Clarifying Concerns About Leakage First, let’s address the customer's concern about the heating tube leaking. Carbon fiber heating tubes operate by using a quartz tube to create a vacuum environment, protecting the carbon fiber heating filament. The filament emits infrared energy through electrical power, which heats the object. If the tube were leaking, the vacuum would be compromised, and the carbon fiber would oxidize and break in less than a minute in a high-temperature, oxygen-rich environment. This breakage would result in a bright, glaring white light. Since no such light was observed in the video, we can confirm that the vacuum of the heating tube remains intact. But why was there smoke? Source of the Smoke The smoke observed in the video did indeed rise slowly, but it wasn’t coming from inside the heating tube. Instead, it was generated from the surface of the quartz tube. Our carbon fiber heating tubes are packaged using PE bubble wrap, which is then placed in a wooden box. During the manufacturing process, the bubble wrap can leave... --- ### Can Carbon Fiber Heating Tubes Be Used in Smokeless BBQs? - Published: 2024-09-26 - Modified: 2024-10-06 - URL: https://globalquartztube.com/can-carbon-fiber-heating-tubes-be-used-in-smokeless-bbqs/ - 分类目录: Uncategorized In response to environmental concerns, smokeless barbecue is becoming more in demand. Traditional charcoal grilling is being used less and less, with smokeless barbecue grills becoming a popular alternative. As temperatures rise, customer inquiries about smokeless barbecue grills are increasing. So, can carbon fiber heating tubes be used in barbecue grills? The answer is yes! However, only those of good quality can be used. Introduction to Smokeless Barbecue Smokeless barbecue refers to a type of barbecue equipment, with its core feature being the absence of smoke. This is largely due to the country’s increased emphasis on environmental protection and urban hygiene since the reform and opening-up period. Currently, most smokeless barbecue grills or machines on the market use either electric heating or natural gas for heating. The types of heating tubes used include stainless steel heating tubes, quartz heating tubes, carbon fiber heating tubes, and infrared heating tubes. As a barbecue enthusiast, I personally believe that the best grilling results are achieved using carbon fiber infrared heating tubes. Thanks to the infrared's penetration capability and the high temperature of 500°C, the food comes out crispy on the outside and tender on the inside, offering a delicious texture! Temperature Comparison with Traditional Charcoal Grilling We all know that traditional grilling uses charcoal, and the surface temperature of burning charcoal is around 600°C. If you compare images of burning charcoal to photos of carbon fiber heating tubes when they are activated, you will notice a remarkable similarity. The answer is clear: the... --- ### Benefits of Carbon Fiber Infrared Heating in Paint Rooms - Published: 2024-09-25 - Modified: 2024-10-26 - URL: https://globalquartztube.com/benefits-of-carbon-fiber-infrared-heating-in-paint-rooms/ - 分类目录: Carbon Fiber Heating Elements Paint baking is involved in various industries, including consumer electronics, automobiles, machinery manufacturing, medical devices, aerospace, and more. All these fields require surface coating, and paint baking rooms are indispensable in the painting industry. The method of paint baking has evolved from natural air-drying to forced drying in paint baking rooms, experiencing various heating modes. As time has passed, paint baking rooms have continuously updated and developed. They started with burning wood and coal for heating, then moved to diesel heating, followed by natural gas heating, electric heating wires, and later infrared and far-infrared heating. As times progress and technology advances, paint baking rooms must keep pace with market demands. Today’s market demands “efficiency, energy-saving, environmental protection, and cost-effectiveness,” and infrared paint baking rooms can meet any of these four points. In the future, infrared paint baking technology is expected to shine brightly in the industry. Currently, there are still many traditional paint baking rooms using oil heating (burning diesel) or combustion-based systems (burning wood scraps or pellet fuel). These two heating methods use fans to send the hot air generated by burning fuel into the paint baking room, raising the temperature through heat convection and heat transfer. This method slowly dries the paint’s solvent from the outside to the inside, and the entire drying process is relatively slow. Due to significant fire hazards, environmental pollution, and less-than-ideal heating results, combustion-based drying rooms are gradually being replaced by infrared heating drying rooms. Infrared paint baking rooms replace the combustion components... --- ### Guide and Precautions for Carbon Fiber Heating Tube Ovens - Published: 2024-09-24 - Modified: 2024-09-25 - URL: https://globalquartztube.com/guide-and-precautions-for-carbon-fiber-heating-tube-ovens/ - 分类目录: Uncategorized Many industries are involved in plastic coating, such as laptop shells, automotive decorative strips, and other plastic spray-painted products. In the process of plastic spray painting, tunnel furnace production lines are typically used for preliminary drying of the paint, and then the paint is forcefully baked in the paint room to enhance surface hardness, adhesion, and other properties. Today, we will introduce some basic operating methods and precautions for using carbon fiber heating tubes in paint baking rooms. Installation Precautions for Carbon Fiber Heating Tube Ovens: Place the oven on a clean, level indoor surface, and ensure it is protected from moisture and dampness while avoiding corrosion. When installing, check if the voltage matches the rated voltage. Install power switches and wires that meet the required capacity based on the oven's power consumption. The external casing must be grounded. Typically, ovens with lower power use 220V, while higher power ovens require 380V. After installation, test the temperature controller to see if it works correctly. Verify if the actual internal oven temperature corresponds to the temperature set on the controller. If there is a significant discrepancy, contact the manufacturer to adjust the parameters. After completing the temperature test, ensure the oven’s circulation fan and temperature upper and lower limit control systems can function normally and switch on and off properly. Operating Procedures for Using the Oven: Once the carbon fiber heating tube oven has been tested and is ready for use, only trained personnel should operate it. The temperature controller discussed... --- ### Lead-Out Methods for Carbon Fiber Infrared Quartz Heating Tubes - Published: 2024-09-23 - Modified: 2024-09-25 - URL: https://globalquartztube.com/lead-out-methods-for-carbon-fiber-infrared-quartz-heating-tubes/ - 分类目录: Uncategorized Compared with traditional heating methods, carbon fiber infrared heating tubes have the advantages of precision, efficiency, and energy saving. When used with silicon-controlled rectifiers and temperature controllers, they can achieve precise temperature control. They play an important role in the heating, insulation, and drying processes in industrial manufacturing and are irreplaceable in fields such as food, agricultural product processing, semiconductors, aerospace, automotive, new energy, rubber and plastics, glass, and printing. Carbon fiber heating tubes are gradually replacing traditional combustion and resistance wire heating methods, and in the future of the electric heating industry, carbon fiber will become an irreplaceable heating tube material. In previous articles, we introduced various aspects of carbon fiber infrared heating tubes. Today, we will discuss the different lead-out methods for carbon fiber infrared quartz heating tubes. I. Lead-Out Methods for Carbon Fiber Infrared Heating Tubes Single Tube Heating TubesThe lead-out methods for single tube heating tubes include single-ended leads and double-ended leads. Double-ended leads can be further divided into vertical and horizontal lead-out methods: Single-Ended Leads: The two ends of the resistance wire are connected to form a circuit, with the lead wire extending from one end. Vertical Lead-Out Method: This method usually uses a square ceramic head, but it is not fixedly paired with the square head. A new type of head combines the advantages of both square and round heads, and it uses a horizontal lead-out method. Horizontal Lead-Out Method: This method is generally paired with round heads, which come in large and small... --- ### Carbon Fiber Infrared Heating: Principles & Applications - Published: 2024-09-20 - Modified: 2024-09-25 - URL: https://globalquartztube.com/carbon-fiber-infrared-heating-principles-applications/ - 分类目录: Uncategorized Yesterday afternoon, we shipped 15 carbon fiber heating tubes, each 1. 8 meters long, with a specification of 380V and 2000W. This length is relatively long. Today, I will continue to introduce the heating principle of carbon fiber heating tubes and discuss the industries in which they are primarily used. I'll share some case studies from different industries for everyone to learn from. Basic Knowledge of Infrared Radiation First, let’s start with some basic knowledge about infrared radiation. This is a brief overview; a detailed explanation could easily fill an entire physics lecture, so let’s work together to learn more. Heating Process of Carbon Fiber Heating Tubes When the carbon fiber heating tube is energized, it emits an orange-red light and simultaneously produces infrared radiation that heats the surrounding objects. The surface temperature of the heating tube can exceed 500°C. The heating process integrates the three common heat transfer modes: thermal conduction, thermal convection, and thermal radiation, with thermal radiation being the primary mode. Below, I’ll introduce these three heat transfer modes. Thermal Conduction Thermal conduction refers to the process by which heat is transferred from the higher temperature part of an object to the lower temperature part along the object. Thermal conduction occurs in solids, liquids, and gases, but strictly speaking, it is pure thermal conduction only in solids. Even in stationary fluids, natural convection occurs due to the density difference caused by the temperature gradient, meaning that thermal convection and thermal conduction happen simultaneously in fluids. A common... --- ### Carbon Fiber Heating Tubes: Power Decay and Performance - Published: 2024-09-19 - Modified: 2024-09-25 - URL: https://globalquartztube.com/carbon-fiber-heating-tubes-power-decay-and-performance/ - 分类目录: Uncategorized Today, I would like to discuss a common question from the first part of our detailed discussion on carbon fiber infrared quartz heating tubes—specifically, question 12: Will the power of carbon fiber heating tubes decay over time? Answer: No, the power will not decay. Unlike tungsten filament infrared heating tubes, carbon fiber infrared heating tubes do not experience power decay. Tungsten filament infrared heating tubes will eventually burn out once they reach the end of their service life. To understand why carbon fiber heating tubes don't experience power decay, let's first explain why tungsten filament infrared heating tubes burn out after some time. Why Do Tungsten Filament Infrared Heating Tubes Burn Out? When tungsten filament infrared heating tubes operate, they become incandescent, with the surface temperature of the tungsten filament exceeding 2000 degrees Celsius. At this temperature, the tungsten filament slowly sublimates, causing it to gradually thin over time. Eventually, the filament burns out and the tube can no longer be used. During this process, the power output of the tungsten filament infrared heating tube gradually decreases. To extend the lifespan of tungsten filament infrared heating tubes, the industry often fills the tubes with protective gases, mainly composed of iodine and other inert gases. This is why infrared heating tubes are also known as halogen lamps. However, this only extends the lifespan and does not completely resolve the issue of short usage time. Why Doesn't the Power of Carbon Fiber Heating Tubes Decay? Carbon fiber is a special fiber composed... --- ### How to Achieve Precise Temperature Control in Electric Ovens - Published: 2024-09-18 - Modified: 2024-09-25 - URL: https://globalquartztube.com/how-to-achieve-precise-temperature-control-in-electric-ovens/ - 分类目录: Uncategorized Electric ovens or industrial drying ovens are commonly used in daily life, industrial production, and school experiments. But do you know how the temperature control principle of an oven works? Today, I will briefly share how a carbon fiber heating tube oven achieves precise temperature control through several components. Required Accessories: 3 pieces of 1000W fiber heating tubes Silicon-controlled rectifier (SCR) power regulator Temperature controller 220V AC contactor Fan Button switch Operating Steps: Connect the Main Circuit: First, connect the main circuit. Connect the three heating tubes in parallel, then connect them to the SCR power regulator. After that, connect the circuit to the AC contactor. This forms the main circuit. Connect the Control Circuit: Next, start connecting the control circuit by wiring the temperature controller. The temperature controller includes a temperature control switch, which opens when the temperature reaches a high level and closes when the temperature drops below the high level or the lower limit. Generally, the controller has indicators for this. Connect this switch to the electromagnetic coil of the AC contactor. This way, the temperature upper and lower limits can control the main circuit's power supply. Wiring the Forced Exhaust System: The temperature controller also has another switch that remains closed when the temperature exceeds the set point and opens when the temperature falls below the upper limit. This switch is also indicated on the controller. Connect the fan’s two wires to this indicator. Ensure that the fan is powered. If the fan has a high... --- ### Ensuring Uniform Temperature with Carbon Fiber Heating Tubes - Published: 2024-09-17 - Modified: 2024-09-25 - URL: https://globalquartztube.com/ensuring-uniform-temperature-with-carbon-fiber-heating-tubes/ - 分类目录: Uncategorized How to Install Carbon Fiber Heating Tubes to Fully Cover the Baking Area? What is the ideal spacing between heating tubes to ensure both temperature uniformity and cost-effectiveness? Consider the Edge Effect of Heating Tubes First, it's essential to consider the edge effect of the heating tubes. When designing the heating system, ensure that the infrared radiation area is larger than the object being heated. Simply put, the heating area of the tube should be larger than the surface area of the object being heated. Otherwise, the heating effect will be diminished. However, if you are only concerned with the ambient temperature and not the effect of the infrared radiation on baking, then you don't need to consider the size of the heated object. In this case, you should only focus on the speed of temperature rise and the final temperature of the space. For more detailed information, refer to the application of carbon fiber infrared heating tubes in paint booths and the power requirements for carbon fiber heating tube drying rooms. You can also refer to the simple calculation method for the thermal power of drying rooms. Adjusting the Distance and Spacing for Even Heating Secondly, it is crucial to adjust the relationship between the distance from the radiator to the heated object and the spacing between the radiators. This will ensure that the object is evenly heated. The optimal distance for using carbon fiber heating tubes is between 2 cm and 6 cm. That is, the gap between... --- ### Carbon Fiber Heating Tube in U-Shaped Tunnel Furnace Application - Published: 2024-09-16 - Modified: 2024-09-25 - URL: https://globalquartztube.com/carbon-fiber-heating-tube-in-u-shaped-tunnel-furnace-application/ - 分类目录: Uncategorized Introduction to Drying Rooms in Industrial Production In industrial production, drying rooms are frequently used. The common types of drying rooms can be broadly categorized into two main types: fixed drying rooms and tunnel drying rooms. These can be further subdivided into fixed chamber-type drying rooms, mobile drying furnaces, drawer-type drying rooms, vertical drying rooms, horizontal drying rooms, and tunnel furnace drying lines. The commonly used electric heating tubes in these drying rooms include stainless steel heating tubes, carbon fiber heating tubes, and infrared heating tubes. Below is a brief introduction to the characteristics of various drying rooms and the industries in which they are commonly used. Types of Drying Rooms 1. Mobile Drying Furnace The mobile drying furnace is a type of traditional oil-fired drying box. It is large in size, equipped with wheels for mobility, and convenient to use. It is suitable for drying large equipment but has the drawback of causing significant pollution due to exhaust emissions. 2. Chamber-Type Drying Furnace This type of drying furnace has a large volume and a simple structure. It is widely applicable and can dry various products such as plastic parts, hardware parts, and glass. However, it can only perform periodic production, has a long drying cycle, and the production frequency needs to be calculated. Typically, two to three drying rooms are needed for rotation. The heating methods used in these drying rooms include oil-fired, pellet fuel, carbon fiber heating tubes, or infrared heating tubes. The heating principle involves high-temperature air... --- ### Can Carbon Fiber Heating Tubes Enhance Blow Molding Machines? - Published: 2024-09-13 - Modified: 2024-09-25 - URL: https://globalquartztube.com/can-carbon-fiber-heating-tubes-enhance-blow-molding-machines/ - 分类目录: Uncategorized Plastic bottles are now widely used across various industries in daily life, including the beverage industry, daily chemical industry, food industry, household goods industry, and pharmaceutical and chemical industries. Plastic bottles have become the dominant type of container in contemporary society, having long replaced traditional glass or metal bottles. The production of plastic bottles requires PET multifunctional blow molding machines. The working principle of the blow molding machine is to heat the plastic preform to a certain temperature, and then use a special process to blow it into the desired shape and size. So, can carbon fiber heating tubes be used in blow molding machines? The answer is yes. Common Heating Tubes in Blow Molding Machines Currently, the most commonly used heating tubes in blow molding machines are tungsten filament infrared heating tubes. However, infrared heating tubes have a drawback: due to the tungsten filament slowly sublimating at high temperatures and reacting with trace amounts of oxygen in the protective gas, the heating filament will eventually burn out over time, which is an unavoidable issue. Why Can Carbon Fiber Heating Tubes Be Used in Fully Automatic Blow Molding Machines? 1. Similar Shape and Structure: Carbon fiber heating tubes share the same shape and structure as infrared heating tubes. Both have similar external structures and materials, which can be made from either transparent quartz tubes or ruby quartz tubes. All the advantages of infrared heating tubes, such as acid and alkali resistance, high temperature tolerance, quick startup speed, and low thermal... --- ### Carbon Fiber Heating Tubes for Efficient Meat Product Drying - Published: 2024-09-12 - Modified: 2024-09-25 - URL: https://globalquartztube.com/carbon-fiber-heating-tubes-for-efficient-meat-product-drying/ - 分类目录: Uncategorized Introduction Thanks to the energy-saving and durable characteristics of carbon fiber heating tubes, they have been widely used in various industries. But is there any use of carbon fiber heating tubes in the meat processing industry? For instance, in sausage processing, there is a drying process involved. While natural air drying is cost-effective, it is inefficient and not suitable for mass production in factories. Application in Meat Processing In the processing of beef jerky or dried pork, high temperatures are required to cook the meat. These processes typically involve the use of electric heating tubes. Currently, most of the industry uses stainless steel heating tubes, with a smaller portion using quartz heating tubes. From an overall perspective, the market for the meat processing industry is still significant. According to a rough estimate, if 30% of processing plants switch to carbon fiber heating tubes, the sales potential of this market would be immense, making it an attractive opportunity for the electric heating tube industry. Therefore, in the coming years, the meat processing industry could represent a new growth area for carbon fiber heating tubes. Advantages of Carbon Fiber Heating Tubes Carbon fiber heating tubes have a thermal conversion efficiency of over 95%. They heat up quickly, greatly improving the efficiency of drying rooms and shortening drying times. This not only helps resolve bottlenecks in the production process but also maximizes the utilization of existing resources. If you choose to install carbon fiber heating tubes in a drying room for processing beef,... --- ### Can Carbon Fiber Heating Tubes Work in Vacuum Environments? - Published: 2024-09-11 - Modified: 2024-09-25 - URL: https://globalquartztube.com/can-carbon-fiber-heating-tubes-work-in-vacuum-environments/ - 分类目录: Uncategorized Carbon fiber heating tubes are well-suited for use in vacuum environments, thanks to their unique infrared heating capabilities. Unlike traditional heating elements that rely on thermal convection and heat transfer, carbon fiber heating tubes utilize infrared radiation to generate heat. This method allows them to effectively heat objects without direct contact, making them an ideal choice in vacuum settings where conventional contact or electromagnetic heating is typically employed. The combination of non-contact heating efficiency and cost-effectiveness sets infrared heating apart in these applications. Understanding the Principles of Vacuum Drying Let me explain some principles of vacuum drying. A common piece of knowledge is that in the high-altitude regions of Tibet, water can be boiled without reaching 100°C when using an ordinary pot. However, this water cannot be used to cook rice. Why is that? It’s because the air is thin at high altitudes, leading to a lower boiling point for water. Even if the water temperature doesn’t reach 100°C at normal pressure, it still boils. What causes this? Relationship Between Boiling Point and Pressure What is the boiling point of water related to? Simply put, the boiling point of water is proportional to the pressure at the interface (the surface where water meets the air). The higher the pressure, the higher the boiling point; the lower the pressure, the lower the boiling point. In more detail, when the partial pressure of water vapor at the interface (which can be understood as the proportion of water vapor molecules among all gas... --- ### Efficient Grain Drying with Carbon Fiber Infrared Heating Tubes - Published: 2024-09-10 - Modified: 2024-09-25 - URL: https://globalquartztube.com/efficient-grain-drying-with-carbon-fiber-infrared-heating-tubes/ - 分类目录: Uncategorized Traditional Grain Drying Methods The traditional method of drying wheat is very low-cost. If the weather is favorable, the drying efficiency is also quite good. However, if it’s not sunny during the harvest period, things can get troublesome. Nowadays, many large-scale grain growers have started using a new type of grain dryer with built-in carbon fiber infrared heating tubes. These dryers heat up quickly, lose less heat, and are popular among users. Today, I would like to share the working principle of this type of dryer. Heating Methods of Grain Dryers There are many heating methods for grain dryers. Among them, far-infrared radiation heating has the advantages of fast drying speed, low power consumption, small size, and low processing cost. Various domestic and international experiments have shown that using infrared to dry grains does not alter the color of the grains and does not cause secondary pollution. During the use of heating tubes, many customers use reflectors, semi-coated white or semi-coated gold methods to change the direction of the infrared rays. But few have considered, “What if the infrared heating tube is placed inside the grain layer? ” By placing it inside the grain, and taking advantage of the fast heating characteristics of far-infrared radiation, the structure of the dryer can be simplified, and heating efficiency can be improved. The Question of Popcorn As everyone knows, the surface temperature of a carbon fiber heating tube reaches 500°C when powered on. With such a high temperature, if the heating tube is... --- ### Carbon Fiber Tube Carbonizes Wood in Vacuum: Test Results - Published: 2024-09-09 - Modified: 2024-09-25 - URL: https://globalquartztube.com/carbon-fiber-tube-carbonizes-wood-in-vacuum-test-results/ - 分类目录: Uncategorized Introduction This experiment aims to verify the heating effect of carbon fiber heating tubes on wooden sticks in a vacuum environment. Experiment Results In the experiment, it was observed that after powering the carbon fiber heating tube in a vacuum environment for 1 minute: the tube successfully heated the wooden sticks. At a distance of 3. 5 cm from the heating tube, the wooden stick turned black, indicating that within 1 minute, the temperature at a distance of 3. 5 cm from the heating tube could reach 380°C in a vacuum environment. Due to budget constraints, only this single test was conducted, and other items were not tested. However, based on the image after baking for 1 minute, it can be inferred that if the baking time were extended, the surface of the wooden stick would be completely carbonized. The cracking of the wooden stick is due to the excessively high temperature and rapid heating rate. Additional Information Using pine wood as an example, when the carbonization temperature reaches 380°C, the carbon content is 76%. At 500°C, the carbon content reaches 85%, and when the temperature reaches 600–700°C, the carbon content reaches 92%. Experiment Data Objective of the Experiment:To verify whether the carbon fiber heating tube can heat in a vacuum environment and to assess the effect of far-infrared rays on heating wood. Specifications of the Heating Tube:500mm, 220V, 1000W carbon fiber heating tube Number of Heating Tubes:4 tubes Test Equipment:High vacuum equipment Test Material:2 wooden sticks Test Conditions:The distance... --- ### Choosing the Right Carbon Fiber Infrared Heating Tube for Different Materials - Published: 2024-09-06 - Modified: 2024-09-25 - URL: https://globalquartztube.com/choosing-the-right-carbon-fiber-infrared-heating-tube-for-different-materials/ - 分类目录: Uncategorized Infrared heating has been applied in industrial tunnel furnaces for decades. However, most current tunnel furnaces still use traditional stainless steel electric heating tubes. Due to their low heating efficiency and frequent burnout of heating wires, stainless steel electric heating tubes lead to high maintenance costs and various operational issues. Most tunnel furnaces are used for heating and curing in the surface coating industry. The traditional metal heating tube process involves maintaining the rated temperature for 15-30 minutes. Because of the long processing time, manufacturers must either slow down the production line or extend the length of the tunnel furnace. This results in longer furnaces that take up more space, leading to significant spatial inefficiency. Switching to infrared heating technology with carbon fiber heating tubes can reduce the installation power by 50%-70% (using hot air or far-infrared heating), and the curing time can be shortened to 30-180 seconds. The length of the heating furnace can be reduced to just 1/5 to 1/10 of the traditional size. Overall, this can save more than 70% of resources and energy, revolutionizing the traditional heating and curing process in surface coating. So, how can we choose the right heating tube? How can you ensure that your heating tube works efficiently? The best way is to select the appropriate carbon fiber infrared heating tube. What Constitutes an Appropriate Heating Tube? Let's break it down step by step. 1. Matching Wavelengths: The spectral wavelength of the infrared heating tube must match the absorption wavelength of the... --- ### Choosing the Right Carbon Fiber Heating Tube: Hollow vs. Core Rod - Published: 2024-09-05 - Modified: 2024-09-25 - URL: https://globalquartztube.com/choosing-the-right-carbon-fiber-heating-tube-hollow-vs-core-rod/ - 分类目录: Uncategorized When selecting carbon fiber heating tubes, if you are not well-informed about the options, you might experience decision fatigue, unsure whether to choose hollow heating tubes or heating tubes with core rods. Today, we will analyze the advantages and disadvantages of each type and guide you on how to choose the right heating tube. The Core Components of Carbon Fiber Heating Tubes The core component of a carbon fiber heating tube is the carbon fiber heating wire, which fundamentally determines the lifespan of the heating tube. The next important component is the external quartz tube, followed by the heat resistance grade of the wires. Today, we will analyze the structure of heating tubes with core rods versus hollow carbon fiber heating tubes, focusing on their respective advantages and which equipment they are best suited for. The Structural Differences Between the Two Types Currently, there are two types of carbon fiber heating tubes on the market. One type has a heating wire with a core rod (double-layer quartz tube), and the other type is hollow (with no support for the internal heating wire). The fundamental difference between the two is whether or not there is a quartz tube inside to support the carbon fiber heating wire. Now, let's explore the differences and benefits of each. First, let's analyze the structural differences. The carbon fiber heating wire in tubes with core rods is firmly wound around an internal quartz rod, resulting in a more uniform distribution of the heating wire. This eliminates... --- ### Efficient Reflection with Semi-White Coated Carbon Fiber Heating Tubes - Published: 2024-09-04 - Modified: 2024-09-25 - URL: https://globalquartztube.com/efficient-reflection-with-semi-white-coated-carbon-fiber-heating-tubes/ - 分类目录: Uncategorized 1. Overview of Carbon Fiber Heater Elements: Carbon fiber heater elements utilize transparent quartz tubes as protective enclosures within a vacuum environment. When the carbon fiber heating filament is electrified, it generates infrared and far-infrared radiation, which is uniformly emitted in all directions. However, in most applications, the heating tube is placed on one side of the product rather than having the product encircle the heating tube. This raises the question: Is the infrared radiation emitted from the other side of the heating tube wasted? How can we effectively utilize the energy carried by this portion of the infrared radiation? To address this, the industry has attempted to alter the direction of infrared radiation from carbon fiber heating tubes using reflectors. While this method achieves some success, the reflection efficiency is relatively low, with only about 40% of the infrared radiation being reflected. Moreover, the cost of reflectors is high. 2. Cost-Effective Solution for Enhancing Infrared Reflection: So, how can we achieve a better infrared reflection effect at a lower cost? Here, we introduce a low-cost treatment method for heating tubes that achieves a reflection efficiency of up to 70%. This method involves coating the outer quartz tube of the heating element with a reflective layer, effectively turning one side of the quartz tube into a mirror. This mirror reflects the infrared and far-infrared radiation emitted by the carbon fiber heating filament back to the opposite side. By doing so, the direction of infrared radiation from the heating tube can... --- ### Functions of Quartz Tubes in Infrared Heating Elements - Published: 2024-09-03 - Modified: 2024-09-25 - URL: https://globalquartztube.com/functions-of-quartz-tubes-in-infrared-heating-elements/ - 分类目录: Uncategorized Infrared quartz heating elements are a new type of electric heating component that uses infrared radiation to heat objects. They are widely used in various heating, drying, and insulation equipment. Infrared quartz heating elements differ significantly from traditional metal wire heating elements. Traditional metal wire heating elements are non-vacuum tubes, whereas carbon fiber infrared heating elements are vacuum tubes, marking a fundamental distinction. But what exactly is a carbon fiber heating element? As shown in the image above, the heating element consists of an outer quartz tube and an internal carbon fiber heating wire. The internal heating wire, as the name suggests, is used for heating. But what role does the outer quartz tube play? First, let's introduce the structure of the infrared quartz heating element. Details are shown in the image below: Metal mounting clip High-frequency magnetic head 2500V insulation sleeve High-temperature resistant wire Pure molybdenum electrode Outer quartz tube Carbon fiber heating wire Inner quartz tube From the image description above, it's evident that the outer quartz tube and the heating wire are the main components of the carbon fiber infrared heating element. The first thing you notice about the heating element is the quartz tube. The quartz tubes used for heating elements include transparent quartz tubes, ruby quartz tubes, and UV-filtering quartz tubes. Let's first discuss the general functions of quartz tubes: Mechanical Support: The quartz tube provides support and fixes the heating wire in place, preventing it from shaking inside the heating element. Insulation and Isolation:... --- ### Why Infrared Carbon Fiber Heater Tubes Are Best for Ovens - Published: 2024-09-02 - Modified: 2024-09-25 - URL: https://globalquartztube.com/why-infrared-carbon-fiber-heater-tubes-are-best-for-ovens/ - 分类目录: Uncategorized Heat transfer occurs in three ways: conduction, convection, and radiation. These three methods of heat transfer are ubiquitous in daily life. But which method is most suitable for use in food ovens? Understanding Heat Transfer Common heat transfer often involves a combination of these three methods, rather than relying solely on one. For example, teppanyaki utilizes conduction, where heat is transferred through the iron plate to the food, raising its temperature until it cooks. However, even when you stand 20 cm away from the iron plate, you can still feel its warmth—this is due to radiation. Boiling water mainly involves convection; when cooking food in boiling water, conduction is also at play, and you can feel the heat from a distance due to radiation. Comparing Heat Transfer Methods While these three methods complement each other, they each have their own advantages and disadvantages. Conduction and convection require a medium to transfer heat and are relatively slow. In contrast, radiation does not need any medium and provides faster heating, allowing for instant on/off operation. When selecting heating tubes for an oven, several conditions must be met: Energy efficiency High heating efficiency Good appearance of baked food Preservation of the food’s nutritional content Only radiation heating meets these criteria. But why is that? Why Radiation Heating Is Superior Conduction and convection first heat the air inside the oven, which then transfers the heat to the food. This process is slower, and food cooked this way may not have the best texture. Radiation... --- ### Advantages of Carbon Fiber Heating Tubes in Paint Industry - Published: 2024-08-30 - Modified: 2024-09-25 - URL: https://globalquartztube.com/advantages-of-carbon-fiber-heating-tubes-in-paint-industry/ - 分类目录: Uncategorized In the paint industry, carbon fiber infrared heating tubes offer several advantages over traditional heating methods such as combustion heating, heat pump heating, or conventional metal heating tubes. Here are the key benefits: Environmental Protection, Safety, Simple Installation, Space Saving Environmental Protection, No Pollution: Combustion heating generates secondary pollutants like carbon dioxide, sulfur dioxide, and solid particulate matter, polluting the air. In contrast, infrared heating tubes operate through electric heating, transferring heat without producing any secondary pollutants. Safety: There are no fire hazards associated with combustion. Traditional combustion heating often uses diesel or wood scraps, requiring significant space for material storage, thereby increasing safety management burdens and costs for businesses. Simple Installation: Compared to traditional heating methods, carbon fiber heating tubes heat objects directly without the need for hot air ducts, significantly reducing heat loss and equipment footprint. Space Saving: Carbon fiber infrared heating tubes occupy minimal space compared to combustion chambers, heat pump rooms, or hot air ducts. No Instantaneous Surge Current: Metal heating tubes often experience a surge current upon startup, reaching up to 4. 8 times the rated current, demanding higher electrical component requirements. Carbon fiber infrared heating tubes do not experience such instantaneous surge currents, ensuring reliable operation. High Drying Efficiency, Time Reduction, Cost Savings Time Saving and Cost Reduction: For water-soluble paints, drying using convection heating typically takes twice as long as oil-based coatings. In contrast, infrared radiation heating can raise the temperature of paint layers to 80 degrees Celsius within 5 minutes, rapidly evaporating... --- ### Differences Between Carbon Fiber Heater Elements and Quartz Heater Elements - Published: 2024-08-29 - Modified: 2024-09-24 - URL: https://globalquartztube.com/differences-between-carbon-fiber-and-quartz-heater-tubes/ - 分类目录: Uncategorized Recently, we've received inquiries from customers asking, "How do you distinguish between carbon fiber heater elements and quartz heater elements? " Today, let's delve into the differences between these two types of heater elements. Definition and Types Carbon fiber heater elements are a type of quartz heater element because they also use quartz tubes as insulation. However, when our customers refer to "quartz heater elements," they specifically mean a type where alloy resistance wires are threaded inside milky white quartz tubes. This type is a traditional form of heating element. Broad Categories of Quartz Heater Elements Broadly speaking, quartz heater elements can be categorized based on the atmosphere around the heating wire: Quartz Vacuum Heater Tubes: These maintain a vacuum around the heating wire. Halogen Quartz Heater Tubes: These use a halogen atmosphere around the heating wire. Non-vacuum Quartz Heater Tubes: These are made with milky white quartz tubes encasing resistance wires without a specific protective atmosphere. Carbon fiber heating tubes on the market fall under quartz vacuum heater tubes. In contrast, tungsten wire infrared heating tubes belong to halogen heater tubes, and those made with milky white quartz tubes encasing resistance wires are non-vacuum heater tubes. Detailed Comparison of Heating Tubes 1. Resistance Wire Quartz Heater Tubes: These are derived from metal electric heating tubes and mainly aim to simplify the production process and reduce costs associated with adding magnesium oxide powder inside metal tubes. They leverage the insulating properties of quartz tubes by directly winding the resistance wire... --- ### Insulating Ceramic Heads for Carbon Fiber Heating Tubes - Published: 2024-08-28 - Modified: 2024-09-24 - URL: https://globalquartztube.com/insulating-ceramic-heads-for-carbon-fiber-heating-tubes/ - 分类目录: Uncategorized Ceramic Head Installation Position on Carbon Fiber Heating Tubes A ceramic head is installed at the lead position of carbon fiber heating tubes. This ceramic head serves as an insulation barrier to prevent electric leakage and also protects the quartz tube. The most common ceramic heads are divided into round and square types based on the lead-out direction of the heating tube. Round ceramic heads are used for horizontally lead-out heating tubes, while square ceramic heads are used for vertically lead-out heating tubes. Today, we will introduce some parameters of these insulating ceramic heads. 1. Installation Diagram of Carbon Fiber Heating Tube Installation Method: When installing, use an M4 drill bit to drill holes and use rivets to mount the special installation clamps for carbon fiber heating tubes onto the fixed sealing plate. Then, clip the heating tube into the installation clamps, as shown in the diagram. 2. Dimensions of Insulating Ceramic Heads for Carbon Fiber Heating Tubes 1. Square Ceramic Head Installation Dimensions:Square ceramic heads, also known as flat ceramic heads, are insulating ceramic heads used with heating tubes that have vertical lead-out connections on both ends. The ceramic head is a rectangular solid with dimensions of 21mm in length, 17mm in width, and 9mm in height. 2. Round Ceramic Head Dimensions:For a 12mm carbon fiber heating tube, the corresponding ceramic head has an outer diameter of 16mm, an inner diameter of 13. 5mm, a large circle length of 21. 5mm, and a small circle length of 5mm. For... --- ### Factors Influencing Carbon Fiber Heating Tube Lifespan - Published: 2024-08-27 - Modified: 2024-09-24 - URL: https://globalquartztube.com/factors-influencing-carbon-fiber-heating-tube-lifespan/ - 分类目录: Uncategorized Introduction Carbon fiber heating tubes are a novel type of electric heating element that differ from traditional metal wire heating tubes. They utilize carbon fiber as the heating element material and quartz tubes as the outer shell. Their advantages include a long service life, high electrothermal conversion rate, infrared radiation heating, acid and alkali resistance, and resistance to thermal shock. These tubes are widely used in industrial tunnel furnaces, industrial ovens, industrial dryers, and are gradually replacing halogen heating tubes and resistance wire heating tubes in household heaters. Types of Carbon Fiber Heating Tubes Carbon fiber heating tubes can be categorized into many types based on their shape, quartz tube material, and processing technology. The main classification methods include: Heating element material Gas filling within the quartz tube Outer quartz tube Wiring method Overall shape of the heating tube With over a hundred different names, we will not list each one here. Instead, we will focus on the factors that affect the performance and lifespan of linear carbon fiber infrared heating tubes. 1. Impact of Carbon Fiber Weaving Methods on Tube Lifespan Currently, the most common forms of carbon fiber heating elements include carbon felt, carbon fiber woven tape, and spiral-shaped heating wires. Each type has its advantages and applications, benefiting users in different ways. Carbon Felt When using carbon fiber felt as the heating element, there are minor issues with power instability. This mainly stems from the manufacturing process, as the inherent characteristics of carbon fiber felt make it... --- ### Factors Affecting Special-Shaped Carbon Fiber Heating Tubes - Published: 2024-08-26 - Modified: 2024-09-24 - URL: https://globalquartztube.com/factors-affecting-special-shaped-carbon-fiber-heating-tubes/ - 分类目录: Uncategorized In many heating applications, straight carbon fiber heating tubes cannot meet the heating needs of objects with special shapes, leading to the development of various special-shaped carbon fiber heating tubes. According to their different shapes, heating tubes can be classified into: round heating tubes, W-shaped heating tubes, U-shaped heating tubes, and Ω-shaped heating tubes. Special-shaped heating tubes can meet the needs of different fields. What are the advantages and disadvantages of special-shaped carbon fiber heating tubes compared to straight heating tubes? Advantages Special-shaped heating tubes possess all the advantages of straight heating tubes and can be processed into different shapes according to the shape of the heated object, allowing for more even and reasonable heating. Disadvantages The processing procedure is complicated, requiring high processing experience and higher costs. What factors during the production process of these special-shaped heating tubes affect the lifespan of carbon fiber heating tubes? First, let me introduce the production process of special-shaped heating tubes. The processing procedure for special-shaped carbon fiber heating tubes includes an additional quartz tube bending process compared to straight heating tubes. Other processes, such as electric heating wire insertion, sealing, and vacuuming, are the same as for straight heating tubes. Here, we will only discuss the factors affecting the lifespan of heating tubes during the bending process. Principle of Quartz Tube Bending Processing The quartz tube is placed on a bending machine and heated. The heated quartz tube bends and deforms according to the predetermined shape under the action of traction. Different... --- ### Effectiveness of Infrared Heating for Drying Edible Mushrooms - Published: 2024-08-23 - Modified: 2024-09-24 - URL: https://globalquartztube.com/effectiveness-of-infrared-heating-for-drying-edible-mushrooms/ - 分类目录: Uncategorized Edible mushrooms such as black fungus, shiitake, and oyster mushrooms are delicious and nutritious, often referred to as healthy foods. For instance, shiitake mushrooms contain various amino acids, some of which are essential for the body's proper functioning. Research has also found that shiitake, button mushrooms, enoki, and lion's mane mushrooms contain substances that enhance human immunity. Some mushroom species even have compounds that can improve the body's anti-cancer capabilities. China has abundant resources of edible mushrooms and is one of the earliest countries to cultivate and use them. However, Chinese dried mushroom products lack competitiveness in the international market. The main reason is that early-stage manufacturers have not conducted in-depth research on the drying processes and techniques, resulting in low drying efficiency and poor product quality. Below, we introduce a method of drying edible mushrooms using infrared radiation. It is well known that each substance has its unique infrared absorption spectrum. When the spectrum of the radiation source matches the absorption band of the substance being heated, the energy carried by the infrared radiation causes the molecules to resonate and absorb energy, leading to a rapid temperature rise. Edible mushrooms have a high water content—an average of 78. 3%, meaning that one kilogram of fresh shiitake mushrooms will only weigh 0. 2-0. 3 kilograms after drying. This indicates a significant match between the infrared absorption band of fresh mushrooms and that of water molecules, which is in the 2-18um range. So, what infrared heating source product matches this band?... --- ### Instantaneous Current Surge in Tungsten Infrared Heating Tubes - Published: 2024-08-22 - Modified: 2024-09-24 - URL: https://globalquartztube.com/instantaneous-current-surge-in-tungsten-infrared-heating-tubes/ - 分类目录: Uncategorized Users of resistance heating tubes or tungsten wire infrared heating tubes are aware that when these tubes are first started, within the first minute or so, the current in the circuit is very large. This phenomenon is known as instantaneous inrush current, where the initial current is much greater than the rated current. But why does this happen? Understanding Instantaneous Current First, let's define instantaneous current. In a circuit, the moment it is powered on, a large current is usually generated. This short-duration large current is called instantaneous current. In circuits with capacitors, this is due to the need for capacitors to charge when first powered on, effectively creating a short circuit. Therefore, the instantaneous current can theoretically be very large. This concept is relatively easy to understand in circuits with capacitors. But why does this happen in infrared heating tube circuits? The Material of Infrared Heating Tubes: Tungsten Wire Let's first understand the material of the heating filament in infrared heating tubes—tungsten wire. Tungsten, with its high melting point, high resistivity, and good mechanical strength, is the best material for incandescent lamps among all pure metals. The heating principle of infrared heating tubes is similar to that of incandescent lamps, so tungsten wire is also used for the heating filament. At 20°C, the resistivity of tungsten wire is 5. 3×10−8 Ω⋅m5. 3 \times 10^{-8} \, \Omega \cdot m5. 3×10−8Ω⋅m. Like other metals, the resistance of tungsten wire increases with temperature. The temperature coefficient of resistance for tungsten wire is 5.... --- ### Carbon Fiber Infrared Tubes for Vacuum Furnace Heating - Published: 2024-08-21 - Modified: 2024-09-24 - URL: https://globalquartztube.com/carbon-fiber-infrared-tubes-for-vacuum-furnace-heating/ - 分类目录: Uncategorized Heating Methods of Vacuum Furnaces Vacuum furnaces generally employ two heating methods: internal heating and external heating. External heating has several drawbacks, such as low heating efficiency, reduced mechanical strength of the furnace body at high temperatures, limited furnace size, high thermal inertia during external heating, and high costs associated with precise temperature control. Internal heating vacuum furnaces mitigate these shortcomings and feature simpler insulation layer structures. However, they demand higher requirements for heating elements and involve more complex installation processes. Challenges with Internal Heating Internal heating methods also necessitate reducing the rated voltage of heating tubes to below 100V, typically around 60V, requiring a voltage reduction system. Therefore, the circuitry of the internal heating vacuum furnace heating system is relatively complex. Is there a heating method that can address the drawbacks of both internal and external heating? Advantages of Carbon Fiber Infrared Heating Tubes Utilizing carbon fiber infrared heating tubes for vacuum furnace heating combines the advantages of both external and internal heating methods, showing significant potential in both technological advancements and cost-effectiveness. As demonstrated in the article "Validation: Carbon Fiber Heating Tubes Can Carbonize Wood Sticks in Vacuum Environment," carbon fiber infrared heating tubes have been proven effective for heating in vacuum conditions. Here, we introduce a vacuum furnace using carbon fiber infrared heating tubes, with a box structure inspired by conventional vacuum furnaces. Vacuum Furnace Structure This vacuum furnace adopts a traditional sealed cylindrical chamber with an internal diameter of 1000mm and a height of 1200mm, operating... --- ### Seafood Drying with Carbon Fiber Infrared Heating Tubes - Published: 2024-08-20 - Modified: 2024-09-24 - URL: https://globalquartztube.com/seafood-drying-with-carbon-fiber-infrared-heating-tubes/ - 分类目录: Uncategorized Carbon fiber infrared heating tubes, as a new product introduced in recent years, have yet to be widely adopted in many fields due to inertia and reluctance among equipment manufacturers to explore new technologies. Currently, tungsten wire infrared heating tubes are predominantly used in agricultural product dryers, followed by traditional resistance wire heating tubes, with carbon fiber infrared heating tubes ranking third or fourth. The acceptance of a new product in the market typically requires time, ranging from one to ten years, but a product with advantages is bound to gain recognition sooner or later. Energy Consumption in Heating and Drying Processes Heating and drying are indispensable processes across various industrial productions, constituting a major portion of energy consumption, similar to residential heating and cooking, consuming a significant amount of energy. According to data from relevant departments, the energy used annually for drying accounts for 10%-15% of the national consumption. Reducing this energy consumption could accelerate national efforts in energy conservation and emission reduction. Therefore, adopting new heating tube technologies that are energy-efficient and offer superior heating effects becomes a crucial initiative for many equipment manufacturers' renovations and innovations. Advancements in Drying Technologies Modern drying technologies such as infrared radiation, ultraviolet light, high-frequency electromagnetic induction, and microwave heating significantly improve heating efficiency compared to traditional methods like combustion heating and hot air circulation. The heating theory model of carbon fiber infrared heating tubes has emerged in response to these advancements. Principle of Carbon Fiber Infrared Heating Tubes The heating principle... --- ### Troubleshooting Carbon Fiber Heater Tripping Issues - Published: 2024-08-19 - Modified: 2024-09-24 - URL: https://globalquartztube.com/troubleshooting-carbon-fiber-heater-tripping-issues/ - 分类目录: Uncategorized Recent customer feedback indicates that after installing carbon fiber heaters, they trip immediately upon turning on. What are the possible reasons for this issue when the heater trips after being powered on? We need to systematically troubleshoot circuit anomalies. Firstly, ensure that the circuit breaker's current rating is appropriate. Overloading can cause the breaker to trip, but it usually happens after a delay rather than immediately upon powering on, especially if the heat dissipation is efficient. The rated current of the breaker should be slightly higher than the normal operating current of the entire circuit. For instance, if the total equipment power is 10KW at 220V, the rated current of the circuit should be 45A, requiring a D63 breaker. Common breaker types include D20, D32, D50, D63, and D80, all typically equipped with residual current protection, with fewer standard breakers in use. Secondly, verify if the wiring of the RCD (Residual Current Device) is correct. In one instance, miswiring the RCD caused immediate tripping upon turning on the switch. It was later found that the neutral wire was bypassing the RCD, a mistake uncommon among electricians. However, when connecting circuits with RCDs, attention should be paid to the following: Ensure Correct Wiring: Do not reverse the connections marked "Power Supply Side" and "Load Side" of the RCD. Reversing them can prevent the RCD from properly disconnecting power, potentially leading to circuit damage over extended periods. Maintain Safety Features: Do not remove or bypass existing safety measures like thermal relays or... --- ### Tungsten Wire vs. Carbon Fiber: Infrared Heating Element Comparison - Published: 2024-08-16 - Modified: 2024-08-19 - URL: https://globalquartztube.com/tungsten-wire-vs-carbon-fiber-infrared-heating-element-comparison/ - 分类目录: Uncategorized Recently, customers have been asking about the differences between tungsten wire and carbon fiber in infrared heating tubes. Today, let's explore the distinctions between these two types of infrared heating tubes. Similarities Between Tungsten Wire and Carbon Fiber Infrared Heating Tubes Both tungsten wire and carbon fiber infrared heating tubes share several similarities: Both utilize quartz tubes to create a vacuum or inert gas environment. Upon electrical activation, both emit infrared radiation to heat objects. They can be manufactured into various shapes according to specifications. Both can feature outer coatings such as ruby quartz tubes, semi-plated white quartz tubes, or gold-plated quartz tubes. Differences Between Tungsten Wire and Carbon Fiber Infrared Heating Tubes 1. Heating Element Material Tungsten Wire Infrared Heating Tubes Tungsten wire is used as the heating element in tungsten wire infrared heating tubes. Tungsten is primarily used in incandescent and halogen lamps as a filament. In the manufacturing process, tungsten filaments for bulbs require the addition of small amounts of potassium, silicon, and aluminum oxides. Tungsten has a resistivity of 5. 3 × 10^-8 ohm meters, high melting point, high resistivity, good strength, low vapor pressure, and is considered the best material for making lamp filaments among metals. When current passes through tungsten wire and heats it to a certain temperature, the resistance value of tungsten wire increases to a certain value (the resistance value of the general metal wire increases with temperature). Carbon Fiber Infrared Heating Tubes Carbon fiber is used as the heating element in... --- ### Carbon Fiber Infrared Heating in Printing: Energy Efficiency Case Study - Published: 2024-08-15 - Modified: 2024-08-18 - URL: https://globalquartztube.com/carbon-fiber-infrared-heating-in-printing-energy-efficiency-case-study/ - 分类目录: Uncategorized Introduction to Energy Efficiency and Emission Reduction Energy conservation and green production are sacred responsibilities bestowed upon us by the times. For manufacturing enterprises, efforts should not only focus on emission reduction but also on enhancing energy efficiency. This article shares a case study on the application of carbon fiber infrared heating technology in achieving energy efficiency and emission reduction in the printing industry. Characteristics of Carbon Fiber Heating Tubes In a previous article, we introduced carbon fiber heating tubes as high-efficiency heating components with an electrical conversion rate significantly higher than conventional heating products. While resistance wires and metal heating tubes have an electrical conversion rate of about 70%, semiconductor heaters achieve approximately 85%. In contrast, carbon fiber heating tubes boast a conversion rate of up to 95%. The variation in material properties and resistance fundamentally determines these differences in electrical conversion rates. Infrared Drying Technology Using Carbon Fiber Heating Tubes Carbon fiber infrared drying technology employs a non-contact heating method where electrical energy is converted through molecular vibration within carbon fibers into infrared radiation. This radiation reaches the surface of objects in the form of infrared rays, which are then absorbed, causing an increase in object temperature. This entire process is rapid, efficient, energy-saving, and pollution-free. By adjusting the infrared wavelength of carbon fiber heating tubes to match the absorption wavelength of the heated object, heating efficiency can be significantly enhanced. Case Study: Application in the Silk Screen Printing Industry Has carbon fiber heating tubes been applied in... --- ### Carbon Fiber Infrared Heating Tubes for Efficient Tea Drying - Published: 2024-08-14 - Modified: 2024-08-18 - URL: https://globalquartztube.com/carbon-fiber-infrared-heating-tubes-for-efficient-tea-drying/ - 分类目录: Uncategorized As tea processing technology increasingly emphasizes environmental friendliness and energy efficiency, traditional methods of tea drying using coal, wood, and other conventional heat sources no longer meet modern requirements. Application of Carbon Fiber Infrared Heating Tubes in Tea Drying Carbon fiber infrared heating technology, widely applied in grains, vegetables, tobacco, and other products, has proven effective in tea drying after several years of research and development. Research and Findings Studies conducted by a university laboratory confirm that carbon fiber infrared heating technology plays a significant role in tea production and quality control. This article primarily explores its application in enzyme deactivation drying processes, equipment energy efficiency, and its impact on tea quality components. Previous Heating Methods Prior to this, many users employed shortwave infrared heating tubes or ceramic heating plates. These components emit mid to shortwave infrared radiation, which primarily depends on the moisture content of tea leaves and typically penetrates only the surface layer of moist materials. Effectiveness of Infrared Heating During radiation heating, the energy reflected and absorbed by tea leaves decreases with reduced moisture content. Comprehensive analysis of various experimental data indicates that far infrared heating tubes are suitable for drying thin materials. Conversely, shortwave infrared heating tubes are required for thicker drying rooms due to their higher temperatures. However, due to the high temperatures of shortwave infrared heating tubes, tea leaves can discolor during drying, making carbon fiber infrared heating tubes preferable for tea drying processes. Tea Processing Challenges Tea leaves undergo physical and chemical changes... --- ### Infrared Heating Tubes for Efficient Instant Noodle Production - Published: 2024-08-13 - Modified: 2024-08-18 - URL: https://globalquartztube.com/infrared-heating-tubes-for-efficient-instant-noodle-production/ - 分类目录: Uncategorized Introduction Instant noodles, also known as fast food noodles, have been a part of people's lives for many years. Due to their crispy taste and convenience, they are widely loved. Initially, instant noodles were deep-fried using palm oil at around 33 degrees Celsius for dehydration, with an oil content typically between 17% and 25%. Although deep-fried noodles have a pleasant aroma, experts point out that the palm oil used in fried instant noodles can be harmful to the human body. Long-term consumption can lead to high fat accumulation in the body, making it unsuitable for people with high blood pressure, high cholesterol, and cardiovascular diseases. Thus, non-fried instant noodles emerged as a healthier alternative. Dehydration Process of Non-Fried Instant Noodles The dehydration process is crucial for non-fried instant noodles. Using electric heating tubes for dehydration can cause the noodles to be burnt on the outside and undercooked on the inside, and the noodle surface may crack, affecting the appearance. Steam pipe heating has low efficiency, long production cycles, high costs, and high moisture content, resulting in substandard noodles. Infrared radiation heating can avoid these disadvantages. Here, we discuss the application of infrared radiation heating in the dehydration process of instant noodles and evaluate its energy-saving effects. Infrared Heating Tubes Analysis shows that the infrared wavelength range absorbed by instant noodles and water is between 5μm and 9μm. By adjusting the wavelength of the infrared heating tubes to this range, based on the principle of infrared radiation heating, we can conclude... --- ### Quartz Carbon Fiber Heating Tubes - Benefits and Uses - Published: 2024-08-12 - Modified: 2024-08-18 - URL: https://globalquartztube.com/quartz-carbon-fiber-heating-tubes-benefits-and-uses/ - 分类目录: Uncategorized Introduction With the maturation of carbon fiber production technology, carbon fiber has been widely developed into various heating elements as a new material. It is used in various heaters, heating equipment, and health equipment due to its superior electric heating performance, high energy-saving, environmental protection, and far-infrared radiation properties. As a result, it is receiving more and more attention and usage. Carbon Fiber Carbon fiber is a high-strength, high-modulus fiber made from polyacrylonitrile fibers, viscose fibers, or pitch fibers as raw materials, by removing other elements except carbon through high-temperature vacuum heating. It has high chemical stability and high-temperature resistance. Among them, viscose-based carbon fibers produced from wood pulp and cotton pulp have good conductivity and softness, making them suitable for manufacturing various heating elements. By the 21st century, scientific experts unanimously believe that carbon fiber heating elements replacing metal heating elements will become an inevitable trend. Carbon Fiber Heating Tubes Taking infrared quartz carbon fiber heating tubes as an example, the product structure involves winding carbon fiber filaments, curing them, and sealing them in quartz tubes. Its main product characteristics are: 1. High Electric Heating Conversion Rate Carbon fiber heating elements are pure black materials. During the electric heating conversion process, most of the generated light is in the range of 2. 5-13um, with very little visible light and a low luminous flux, resulting in an electric heating conversion rate of over 95%. 2. Rapid Heating and Low Thermal Lag The high thermal conductivity of carbon fiber in the... --- ### Far-Infrared Drying Technology for Efficient Strawberry Drying - Published: 2024-08-09 - Modified: 2024-07-04 - URL: https://globalquartztube.com/far-infrared-drying-technology-for-efficient-strawberry-drying/ - 分类目录: Uncategorized Strawberries are delicious and highly nutritious, but due to their delicate nature, they are not easy to preserve fresh. To store them for a longer period, they need to be dried immediately after harvesting. Dried strawberries are also popular among women in various regions. Today, we will compare the far-infrared drying technology with traditional drying methods for drying strawberries. Fresh Strawberries Traditional drying methods include natural air drying, which largely depends on weather conditions. In rainy weather, strawberries can spoil, leading to low production efficiency, making it unsuitable for mass production and more appropriate for small-scale operations. Industrial drying methods include hot air drying, microwave vacuum drying, microwave freeze drying, and heat pump drying. Each method has its own drying effects, such as significant nutrient loss, high energy consumption, uneven drying, and lengthy processing times. Therefore, developing new drying technologies for strawberries is a major research direction in the field of dried strawberry processing. Dried Strawberries Far-infrared drying uses carbon fiber heater elements as the infrared radiation source. Utilizing the thermal effect of infrared and the principle of selective absorption of radiation by substances, the infrared radiation reaches the surface of the material, where the substance absorbs energy in specific infrared wavelengths. This accelerates the vibration and collision of internal molecules or atoms, increasing the temperature and driving internal moisture to diffuse outward, achieving rapid drying. Far-infrared drying features low drying cost, fast speed, good quality, and low energy consumption. It has already been successfully applied in drying vegetables, herbs,... --- ### Far-Infrared Drying Technology: Flat Beans Case Study - Published: 2024-08-08 - Modified: 2024-08-18 - URL: https://globalquartztube.com/far-infrared-drying-technology-flat-beans-case-study/ - 分类目录: Uncategorized Introduction Flat beans are commonly processed by boiling in brine and then sun-drying. In many rural areas, this method is still widely used. However, how should they be processed in the food processing industry? Is it possible to dry them in batches like mushrooms? The far-infrared drying technology is already quite mature. However, many users in the market still lack experience in drying vegetables using carbon fiber heating tubes. During customer consultations, it was found that many customers are still using traditional hot air drying, which is inefficient and energy-consuming. In the field of vegetable drying, many companies are still in the experimental stage. The author has previously published articles on infrared drying of mushrooms, seafood, and crops. Today, using flat beans as a case study, I will share the application of carbon fiber heating tube far-infrared drying technology in the field of vegetable drying. Description of Flat Beans Flat beans belong to the legume family, and are a climbing herb that can grow up to several meters. They have pinnately compound leaves with ovate leaflets that are broad and wedge-shaped at the base. The petioles are usually shorter than the leaflets and are hairy. The racemes have long peduncles with several flowers in the upper part; the pedicels are very short, and the small bracts are ovate and early falling. The corolla is white or pink, with broad-elliptical banner petals that are notched at the apex, and the ovary is linear and hairy. The pods are band-shaped and slightly... --- ### Food Drying Tech: Far-Infrared, Microwave, Vacuum Freeze - Published: 2024-08-07 - Modified: 2024-08-18 - URL: https://globalquartztube.com/food-drying-tech-far-infrared-microwave-vacuum-freeze/ - 分类目录: Uncategorized Various Food Drying Methods In food production, there are numerous methods for drying food. These drying techniques can be categorized based on different criteria: By operating environment pressure: Atmospheric drying and vacuum drying. By operating method: Batch drying and continuous drying. By heat transfer method: Convection drying, conduction drying, and radiation drying. Radiation drying can further be divided into far-infrared drying and microwave drying based on heat transfer mechanisms. Among these food drying techniques, far-infrared drying, microwave drying, and vacuum freeze drying are relatively common in recent years. Below is a detailed introduction to the advantages of these common drying techniques. I. Far-Infrared Drying Technology Far-infrared drying utilizes far-infrared radiation elements (such as far-infrared carbon fiber heating tubes) which emit far-infrared rays that are absorbed by the heated object and directly converted into heat energy, enabling moisture to be dried out. Infrared rays are electromagnetic waves with wavelengths ranging from 0. 72 to 1000μm. Far-infrared rays are generally those in the range of 5. 6-1000μm, while those below 5. 6μm are called near-infrared rays. Far-infrared drying has developed rapidly in the food drying field. During the drying process, food material surfaces and internal molecules can simultaneously absorb far-infrared rays, resulting in fast drying speeds and high production efficiency. The drying time is typically half that of regular infrared drying and one-tenth that of hot air drying. Far-infrared drying is energy efficient, with energy consumption being only half that of near-infrared drying. Additionally, the equipment is small-scale, has low construction costs,... --- ### Advantages of Infrared and Far Infrared Drying - Published: 2024-08-06 - Modified: 2024-08-18 - URL: https://globalquartztube.com/advantages-of-infrared-and-far-infrared-drying/ - 分类目录: Uncategorized In recent years, the research and application of far infrared technology in drying, using carbon fiber heating elements as emitters, have seen rapid development in the field. Current studies primarily focus on standalone far infrared drying methods. Research on Mushroom Drying Using Carbon Fiber Heating Elements Studies have examined the temperature characteristics and quality of dried mushrooms using carbon fiber heating elements. Models for constant-speed and deceleration-rate drying stages have been established. Additionally, the relationship between average dehydration rate and post-drying product quality has been analyzed. Furthermore, combined drying techniques such as infrared vacuum and microwave drying have been initiated and researched. Energy Saving Advantage Energy Conservation: Far infrared drying offers significant energy savings compared to traditional methods like hot air drying. Many countries are enhancing energy utilization and developing eco-friendly energy sources to improve energy efficiency and structure. Far infrared drying not only alleviates shortages of non-renewable resources such as coal and oil but also reduces environmental pollution and carbon dioxide emissions caused by fossil fuel combustion. Quality Improvement Advantage Enhanced Heating Temperature, Superior Product Quality: Infrared drying is particularly suitable for drying various agricultural products such as foods and fruits. While natural drying methods like outdoor air drying are simple and cost-effective, they often fail to guarantee hygiene standards and are susceptible to weather conditions. Moreover, they result in extended drying cycles and inconsistent product quality, including changes in color and compromised quality assurance. With advancements in science and technology, standalone far infrared drying alone cannot fully meet... --- ### Key Considerations for Far Infrared Carbon Fiber Heater Dryers - Published: 2024-08-05 - Modified: 2024-08-18 - URL: https://globalquartztube.com/key-considerations-for-far-infrared-carbon-fiber-heater-dryers/ - 分类目录: Uncategorized When designing far infrared carbon fiber heater dryers, several key considerations must be taken into account: Selection of Dryer Form The form of the drying oven needs careful consideration to suit the specific application. Confirmation of Basic Dimensions Determining the fundamental dimensions of the dryer is crucial for accommodating the intended production volume and product sizes. Specification of Heating Source and Radiant Element Layout Selecting the specifications of the heating source, such as carbon fiber heater elements, and arranging the layout of radiant elements are critical steps in ensuring efficient and effective drying. Heating Temperature and Duration Setting the appropriate heating temperature and duration plays a pivotal role in achieving optimal drying results while maintaining product integrity. Equipment Sealing and Insulation Measures Ensuring adequate sealing and insulation of the equipment is essential for optimizing energy efficiency and maintaining consistent drying conditions. Parameters Overview 1. Furnace Design The design parameters and material composition analysis are essential due to the unique principles of infrared and far infrared heating, necessitating tailored approaches rather than relying solely on conventional production data. Preliminary investigations or small-scale simulation experiments are typically conducted to assess the suitability of infrared and far infrared drying for specific materials. Key data to be determined after experimental validation include: Required drying temperature for the material. Duration of the drying process. Average electrical power density on the drying plane and heat intensity in the drying channel. Distance between carbon fiber heater elements and the material being dried. 2. Determination of Design Parameters... --- ### Why Broken Carbon Fiber Heater Tubes Can't Be Reused - Published: 2024-08-02 - Modified: 2024-07-01 - URL: https://globalquartztube.com/why-broken-carbon-fiber-heater-tubes-cant-be-reused/ - 分类目录: Uncategorized Today, while browsing through records, I came across a friend's query about whether damaged heating tubes can be salvaged. Specifically, "Can broken outer tubes of carbon fiber heater elements be reconnected and still used? " Let's analyze why both carbon fiber heater elements and tungsten wire infrared heating tubes cannot continue to be used when their outer tubes crack. Properties of Carbon Fiber Heater Elements and Tungsten Wire Infrared Heating Tubes Both carbon fiber heater elements and tungsten wire infrared heating tubes consist of electric heating wires enclosed within quartz tubes, processed through vacuum sealing or the introduction of protective gases. Characteristics of Electric Heating Wires The electric heating wires in these two types of heating tubes are made of carbon fiber and tungsten, respectively. The properties of these materials dictate that they must be operated under vacuum or in a protective gas environment to function properly. Carbon Fiber Characteristics Carbon fiber, when powered in air, oxidizes and loses its physical properties after reaching a certain surface temperature, leading to rapid burnout. However, it can be used for extended periods in low-temperature environments. For instance, carbon fiber silicone wires used in underfloor heating systems operate below 75 degrees Celsius. Carbon fiber wires are suitable only for civilian applications in low-temperature fields such as underfloor heating, wall heating, low-temperature heaters, health care products, and low-temperature physiotherapy devices. In industrial electric heating tube applications, however, 75 degrees Celsius falls short of operational requirements. The physical and chemical properties of carbon fiber are... --- ### Choosing Far Infrared Heating Equipment: Key Considerations - Published: 2024-08-01 - Modified: 2024-07-01 - URL: https://globalquartztube.com/choosing-far-infrared-heating-equipment-key-considerations/ - 分类目录: Uncategorized 1. Heating Element Length Requirements The length of far infrared heating elements should generally match the overall width of the equipment, leaving 1cm-2cm of installation space on one end. 2. Confirmation of Effective Heating Zone The effective heating zone should align with the width of the products being dried, extending 4cm beyond the width of the product's drying area. This includes a 2cm buffer zone on each side to prevent temperature differentials that could affect drying efficiency. 3. Setting of Material Processing Temperature Curves and Tunnel Furnace Temperature Distribution Understanding the temperature curves for material processing and the temperature distribution within the tunnel furnace is crucial. 4. Distance Between Workpieces and Carbon Fiber Heating Elements, Layout of Heating Elements, and Design of Infrared Wavelength Combinations Proper layout and design of heating elements in relation to the infrared wavelength, and maintaining appropriate distances from workpieces are critical considerations. These aspects ensure efficient operation and optimal performance of far infrared heating drying equipment. For tailored far infrared heating solutions, visit our website or contact us via email contact@globalquartztube. com. --- ### Infrared Heating & Drying in Food & Agriculture - Published: 2024-07-31 - Modified: 2024-08-18 - URL: https://globalquartztube.com/infrared-heating-drying-in-food-agriculture/ - 分类目录: Uncategorized Advantages of Infrared Heating and Drying The equipment using carbon fiber heater elements as a far-infrared radiation source is referred to as far-infrared heating equipment. The advantages of infrared heating and drying include: High thermal radiation rate Low heat loss Fast heating speed High heat transfer efficiency Certain penetration capability High heat absorption rate Convenient equipment maintenance Current Application in the Food and Agricultural Product Industries However, for various reasons, infrared heating and drying technology has not been widely used in the food and agricultural product industries at this stage. The main reasons include: The wide range of moisture content in food affects the infrared heating characteristics. Compared with traditional hot air circulation, people's understanding of the spectral characteristics of infrared radiation is not deep enough. Many large companies are unwilling to take on the experimental risks of new heating methods. The penetration of infrared radiation has certain limitations, making it unsuitable for heating and drying thicker products. Types of Far-Infrared Drying Equipment There are two main types of far-infrared drying equipment: Sealed Box-Type Heating Furnace: This type of equipment, also known as an oven or baking oven, has only one entry and exit door. Continuous Heating Equipment for Production Lines: This type of far-infrared heating and drying equipment is used on production lines to continuously heat, dry, and sterilize materials. It includes a material conveying device that inputs materials from one end and outputs them after processing from the other end. This type of equipment is generally designed in... --- ### Efficiency Improvement Using Carbon Fiber Heater Elements for Drying Plastic Products - Published: 2024-07-30 - Modified: 2024-08-18 - URL: https://globalquartztube.com/boost-plastic-drying-efficiency-with-infrared-heating/ - 分类目录: Uncategorized Introduction With the development of the chemical industry, plastics have become essential raw materials for synthetic fibers, electrical insulation materials, acid-resistant containers, and various everyday products. The production processes of these materials also involve heating and drying stages. Recently, the application of carbon fiber heater elements as infrared radiation heat sources in the plastics industry has become a new research topic. Infrared Absorption Characteristics of Plastics Scientific analysis indicates that both thermoplastic resins (such as polyethylene, polystyrene, polyvinyl chloride, etc. ) and thermosetting resins (such as phenolic resins, polyamides, etc. ) exhibit significant absorption bands in the infrared region. Designing carbon fiber heater elements to emit radiation wavelengths matching these infrared absorption bands can significantly improve electric heating efficiency. Applications in Plastic Production Far-infrared radiation heating technology can be utilized in the plastic production process for both granular plastic dehydration and heating plastic products for thermoforming or injection molding. Operational Considerations During usage, besides ensuring the matching of infrared wavelengths with the plastic's absorption range, attention must be paid to: Ensuring smooth and flat conveyance paths for granular plastic during dehydration drying to facilitate even distribution and uniform movement. Managing the distance between carbon fiber heater elements and plastic particles to prevent local overheating due to uneven heating temperatures or conveyor speeds. This helps avoid local melting and sticking of plastic particles. In PET blow molding machines, carbon fiber heater elements are not widely used initially due to operators' reliance on tungsten wire infrared heaters, which they judge temperature by... --- ### Carbon Fiber Heating Elements: Efficiency and Applications - Published: 2024-07-29 - Modified: 2024-08-18 - URL: https://globalquartztube.com/carbon-fiber-heating-elements-efficiency-and-applications/ - 分类目录: Uncategorized Carbon fiber heating elements are now widely applied in various industrial equipment. How effective are they in saving energy? Transparent Quartz Tube Carbon Fiber Far Infrared Radiator Transparent quartz tube carbon fiber far infrared radiators are infrared heating components with wavelength selectivity. They utilize woven carbon fiber strips as heating elements, enclosed within transparent quartz tubes which serve as thermal radiation and infrared radiation mediums. The quality of the quartz tubes, processed from fused quartz sand, directly influences the quality of carbon fiber far infrared radiators. Carbon Fiber Heating Elements Using carbon fiber heating elements as the source of far infrared radiation achieves high efficiency in both electric-to-heat and electric-to-radiation conversions, reaching 95%-98%. This surpasses the 60% efficiency of resistance wire quartz heating tubes. Additionally, these elements have low thermal inertia and rapid heating and cooling cycles, heating up in just 5-10 seconds. They are particularly suited for rapid heating applications and have been successfully deployed in industries such as painting, powder coating, printing, food processing, pharmaceuticals, and chemicals. Types of Transparent Quartz Tube Radiators Transparent quartz tube radiators come in various styles including tubular, panel, lamp, and immersion types. Among these, panel and lamp styles are crafted using carbon fiber heating elements shaped accordingly, with added reflectors or reflective coatings on the back for directional radiation and heating of objects. Semi-Coated White Carbon Fiber Heating Elements Semi-coated white carbon fiber heating elements offer higher infrared utilization efficiency for directional radiation. They are a cost-effective option, slightly more expensive than... --- ### Far Infrared Wood Drying Technology and Development Prospects - Published: 2024-07-26 - Modified: 2024-08-18 - URL: https://globalquartztube.com/far-infrared-wood-drying-technology-and-development-prospects/ - 分类目录: Uncategorized Wood is widely used in market life, the construction industry, furniture production, and industrial manufacturing. Most of the wood we encounter has been dried, traditionally by air-drying outdoors, a method both ancient and inefficient due to high labor intensity. Nowadays, wood processing factories increasingly employ large drying equipment, utilizing methods such as steam drying and electric heating. But where does carbon fiber heating technology fit into the wood drying sector? The answer lies in its potential usefulness. Current Situation and Deficiencies in Wood Drying Technology The purpose of wood drying is critical for wood processing, as improperly dried wood can degrade in quality or become unusable, resulting in waste. Wood drying aims to: ① prevent deformation and cracking, ② enhance mechanical strength and improve physical properties, ③ prevent decay and insect damage, and ④ reduce weight to save on transportation costs. Processed wood, used in products like sofas, beds, and cabinets, often surprises consumers with its costliness, reflecting the extensive processing required after initial drying. Wood drying is energy-intensive, making it a pivotal stage in wood product manufacturing for both product quality and economic benefits. Example of Existing Wood Drying Equipment in China Among various wood drying equipment in China, steam drying comprises 80%, with smaller enterprises favoring furnace gas and direct-fired flue gas drying. Steam drying relies on boilers for heat supply, where the average thermal efficiency of industrial boilers and their official websites in China is only 60%. Steam drying incurs significant heat loss in intake and exhaust,... --- ### Carbon Fiber Heater Tube Designs for Drying Lines - Published: 2024-07-25 - Modified: 2024-08-18 - URL: https://globalquartztube.com/carbon-fiber-heater-tube-designs-for-drying-lines/ - 分类目录: Uncategorized Industrial drying lines, particularly in sectors like large-scale coating factories, food processing plants, and textile printing and dyeing facilities, utilize various types of drying chambers. These are often referred to as drying rooms, drying ovens, or tunnel kilns, with design solutions tailored based on component dimensions and operational experience validated through specific design processes. Today, we share insights into a bridge-type drying line. Advantages of Bridge-Type Drying Lines Bridge-type drying lines offer several advantages over other forms. They minimize smoke emission at both ends, ensuring cleaner workshop environments. Utilizing air curtain fans for exhaust reduces noise levels. These lines efficiently utilize workshop air, with the horizontal section suspended in mid-air, allowing space underneath for electrical cabinets and toolboxes, thereby optimizing spatial use. However, the extended inclines for preheating and cooling phases increase initial equipment investment, representing a drawback of this design. Structural Components of Bridge-Type Drying Lines Typically, these lines consist of a furnace framework, insulation layers, infrared radiators, and heat-resistant conveyor belts. The framework is usually constructed using angle or channel steel, with insulation thickness ranging from 80mm to 150mm, maintaining a surface design temperature below 50 degrees Celsius. Sections of the drying line are typically 2 meters in length, connected via bolted joints to accommodate installation and thermal expansion. Selection of Infrared Radiators for Drying Lines Infrared radiators for drying lines can include options like carbon fiber heater tubes and tungsten wire infrared heating tubes. Ventilation system design must account for emissions from drying processes, aiming to keep... --- ### Carbon Fiber Heater Tubes for Efficient Industrial Drying Rooms - Published: 2024-07-24 - Modified: 2024-08-18 - URL: https://globalquartztube.com/carbon-fiber-heater-tubes-for-efficient-industrial-drying-rooms/ - 分类目录: Uncategorized Industrial drying rooms find extensive applications across various fields such as food drying, crop drying, and plastic/metal coating drying. The total power of electric heating drying rooms ranges from as low as 100 kW to over several thousand kilowatts, making them significant electricity consumers. The cost of electricity constitutes a considerable portion of the overall paint baking costs. Poor insulation and low electricity utilization efficiency in drying rooms directly increase production costs and reduce enterprise revenue. Industrial Drying Rooms As market competition intensifies, business owners are becoming increasingly astute in selecting electric heating elements for drying rooms. The efficiency of heating directly impacts the amount of electricity used. If less electricity can produce more products, business owners are naturally delighted. So, what kind of heating element can achieve high efficiency and energy savings? Today, I'll quietly tell you about one type of electric heating element: the carbon fiber heater element. Semi-Gold-Plated Carbon Fiber Heater Element Carbon fiber heating elements for drying rooms are designed for plastic and metal paint baking. They emit infrared and far-infrared wavelengths that align with the spectral bands absorbed by water-based paints, resulting in relatively high energy utilization efficiency. Alongside radiant heating, thermal convection occurs, aided by the carbon fiber heater's high electric conversion rate of 98%, significantly enhancing energy efficiency in drying rooms. When complemented with a hot air circulation system, the heating effect is further optimized. When carbon fiber is energized, intense molecular movement of carbon molecules inside generates heat through friction, accounting for... --- ### Selecting Carbon Fiber Heater for Industrial Tunnel Dryers - Published: 2024-07-23 - Modified: 2024-08-18 - URL: https://globalquartztube.com/selecting-carbon-fiber-heater-for-industrial-tunnel-dryers/ - 分类目录: Uncategorized Industrial tunnel dryers are a preferred choice for drying processes in industrial, agricultural, and medical production due to their efficiency in facilitating streamlined production lines with shorter turnover cycles and smaller floor space compared to batch dryers. However, selecting the optimal drying temperature in tunnel dryers poses challenges due to the diverse types of materials and their varying drying characteristics, amid strong market demands. Types of Materials and Temperature Optimization 1. Selection for Oil-Based Paints For drying oil-based paints, temperature selection hinges on parameters derived from manufacturers' test reports. Calculations based on these parameters dictate the appropriate temperature range, guiding the design specifications of carbon fiber heater elements. However, final selection of the heating element's temperature range must align with comprehensive conditions of the heated object. Given the chemical kinetics of paint surfaces, every 10°C rise in surface temperature can triple the curing speed. Yet, care must be taken; for instance, drying PC+ABS material paint at 260°C risks distorting plastic products, impacting structural integrity. Thus, iterative testing of optimal drying schemes remains crucial, highlighting the complexity in selecting electric heating elements in the infrared drying sector. 2. Selection for Capillary Porous Colloids Drying capillary porous colloids involves an internal diffusion-controlled process where surface moisture evaporates readily while internal moisture migration proves challenging, potentially causing surface effects leading to clogging and affecting overall drying efficacy. Hence, in-depth research into drying principles based on material requirements or permissible maximum temperatures is essential. Experimental principles involve dynamic drying studies tailored to different heating... --- ### Types of Paint Coatings and Their Curing Mechanisms - Published: 2024-07-22 - Modified: 2024-08-18 - URL: https://globalquartztube.com/types-of-paint-coatings-and-their-curing-mechanisms/ - 分类目录: Uncategorized Paint coatings have become integral to our daily lives and work environments. From solid wood furniture at home to components in office electronics, spray-painted parts are ubiquitous. The role of paint coatings varies depending on the product. Wooden Paint Coatings: The Most Common Type Wooden paint coatings serve primarily decorative and preservative purposes. However, modern technology demands more than mere aesthetics and corrosion resistance. Thus, scientists have endowed paints with capabilities such as camouflage, heat resistance, conductivity, high-temperature insulation, anti-soiling, radiation protection, and even optical filtering. Classification of Coatings Based on Substrate Type Coatings can be classified based on the type of substrate they cover: Metal Baking Paint: Used on metal surfaces. Concrete or Stone Spray Paint: Applied to concrete or stone materials. Plastic Spray Paint: Designed for plastic substrates. Wood Spray Paint: Specifically formulated for wood. Quartz Glass Spray Paint: Used for quartz glass substrates. Mechanisms of Film Formation Coatings can also be categorized based on the mechanism of film formation: Volatile Coatings: Formed by solvent evaporation. Oxidative Polymeric Coatings: Polymerize and form a film through oxidation. Thermosetting Coatings: Require temperatures above 100°C for solvent evaporation and loss of flowability. Crosslinking and curing of functional groups within the coating molecules occur at these temperatures, forming a complete polymer layer. Examples include amino-resin baking paints, asphalt varnishes, and organosilicon magnetic paints. Example: Mechanism of Amino-Resin Baking Paint Amino resins serve as curing agents for alcohol-acid resins in the paint industry. Under heating conditions, ether bonds in amino resins crosslink with... --- ### Enhance Paint Drying Efficiency with Carbon Fiber Heating Elements - Published: 2024-07-19 - Modified: 2024-08-18 - URL: https://globalquartztube.com/enhance-paint-drying-efficiency-with-carbon-fiber-heating-elements/ - 分类目录: Uncategorized In the initial stages of production, many people believed that the drying mechanism of paint coatings is similar to that of drying wet materials, which is primarily a heat transfer process unrelated to chemical changes, purely a process of thermal transmission. However, further research has revealed that besides the pure physical process of converting thermal radiation into heat energy within the paint layer, chemical reactions also play a crucial role, especially in thermosetting paint films. Phases of Paint Curing Process The curing process of paint coatings can be divided into two stages: diffusion stage and curing stage. The diffusion stage involves the input of thermal radiation into the coating, mainly preheating and warming up the workpiece and the evaporation of sufficient volatiles. The curing stage, also known as the kinetic stage, is where chemical bonds are actively cured. Effective temperature control is crucial during this stage, as the rate of chemical reactions dictates the progress of the drying process. According to the laws of chemical kinetics, increasing the temperature by 10°C can accelerate the chemical reaction rate by 1-3 times. Use of High-Temperature Radiation Research conducted at a university validated the use of carbon fiber heating elements with a surface temperature of around 600°C. Placed 10 cm away from the heating element, these elements irradiated the surface of automotive steel rim paint with infrared rays for 3 minutes, achieving drying effects equivalent to those obtained in traditional factory ovens in 30 minutes. Consequently, countries like the United States and Australia... --- ### Infrared Radiant Heating Tubes for Directing Drying of Single-Layer Wood Panels to Solve Plywood Warping Issues? - Published: 2024-07-18 - Modified: 2024-08-18 - URL: https://globalquartztube.com/infrared-radiant-heating-tubes-for-directing-drying-of-single-layer-wood-panels-to-solve-plywood-warping-issues/ - 分类目录: Uncategorized Plywood or laminated wood is formed by pressing multiple layers of veneer bonded together. Veneers are obtained by rotary cutting wood logs into thin slices, typically about 1. 5mm thick. After rotary cutting, the veneers undergo drying, cutting, sorting, pretreatment, adhesive application, and finally pressing into plywood. However, the drying of veneers consumes a lot of energy and limits the continuous production capacity and quality of plywood due to low yields. Modern Veneer Drying Methods Modern veneer drying has evolved from intermittent convection heating kilns to continuous production hot air belt dryers, roller dryers, and recently developed high-speed jet impingement roller dryers. The latter includes the latest jet impingement drum veneer dryer designed and manufactured domestically in China with technology imported from Germany, achieving a thermal efficiency of up to 38%. In contrast, heavy-duty belt veneer dryers currently produced in China typically have a thermal efficiency of less than 15%. To improve energy efficiency, reduce initial investment costs, and increase plywood production, there is a need to develop new types of veneer dryers. Application of Infrared Heating Tubes As early as the 1990s, Canadian researchers chose medium-wave infrared heating tubes for veneer drying to compensate for the decreased performance of veneer dryers due to low-pressure steam from factory wood waste, increasing the overall thermal efficiency, drying rate, reducing space requirements, and facilitating temperature control. Combining conventional belt dryers with infrared dryers can effectively improve moisture diffusion, increase production yields, reduce energy consumption, and enhance thermal utilization efficiency. Chinese researchers have... --- ### Is Electric Heating More Energy-Intensive for Drying Single-Layer Wood Panels? Suggestions for Enhancing Four Design Parameters - Published: 2024-07-17 - Modified: 2024-08-18 - URL: https://globalquartztube.com/optimize-plywood-drying-electric-heating-and-infrared-technology/ - 分类目录: Uncategorized In recent years, there has been in-depth global research on the drying characteristics of plywood veneers, primarily focusing on hot air drying. Advances have been made in accelerating the drying process by increasing temperature and airflow speed. Among the more advanced systems, Germany has developed jet speeds up to 60m/s, with temperature control ranging from 210°C to 290°C, achieving thermal efficiency of up to 38%. Energy consumption equivalents indicate 1. 9 kWh per kg of water evaporated. Historically, low energy utilization rates of alloy wire electric heating elements in drying equipment have resulted in high comprehensive energy consumption rates, equivalent to 5 kWh per kg of water evaporated. Therefore, electric heating drying has not been widely promoted. The primary reason for the limited promotion of electric heating drying for single-layer panels is high energy consumption. Modern jet-type single-layer drying machines have suppressed the development of infrared drying machines in the short term. However, infrared drying theory is more advanced than hot air drying theory. Any theory accepted by the market requires time, ranging from a few years to several decades. The advantages of infrared drying can be theoretically analyzed. Compared with the thermal circulation system, the air temperature is 100°C, relative humidity is approximately 5%, and airflow velocity is 2m/s. If the surface temperature of the infrared radiation source reaches 600°C, its heat flux is 30 times that of convective drying, making infrared drying methods promising. Improving Thermal Efficiency and Reducing Energy Consumption The first challenge to address is improving... --- ### Theory and Practice of Infrared Heating Tubes for Wood Drying - Published: 2024-07-16 - Modified: 2024-08-18 - URL: https://globalquartztube.com/theory-and-practice-of-infrared-heating-tubes-for-wood-drying/ - 分类目录: Uncategorized Drying aims to achieve the physical process of moisture migration in materials, reaching a certain dryness level or moisture content. Drying equipment is indispensable in this process. A good drying system can efficiently and energetically achieve drying goals, which is the ultimate objective of researchers in the drying field. How can we design better, more durable, and energy-efficient drying equipment? We must adhere to this fundamental direction. Importance of Drying Theory Recognizing the importance of drying theory is crucial. In any field's development, theoretical research serves as a guiding principle to steer the direction of advancement. Drying technology's progress relies on reform, innovation, and foundational research in drying theory. Application in Production From a production application perspective, the scaling and specialization of drying production rely on combined drying and precise, clean drying technologies. Implementing advanced technologies also depends on modern management systems. When designing drying equipment, our aim is to create high-quality, low-energy-consuming systems that operate under conditions of minimal environmental impact and low investment and operational costs. Transition to Advanced Drying Methods Current drying methods are transitioning from extensive to intelligent and precise models. This shift moves from viewing drying as a stable-state process under extensive drying models to multi-stage, non-steady-state parameter combinations. In simpler terms, the drying process no longer involves baking at a specific temperature for a set duration but instead sets drying process parameters based on material drying characteristic curves, adjusting temperatures and insulation times at different drying stages. Steady-State and Non-Steady-State Drying Models Both steady-state... --- ### Theory of Evaporation of Free Moisture Inside Wood and Research on Drying Wood with Carbon Fiber Electric Heating Tubes - Published: 2024-07-15 - Modified: 2024-06-25 - URL: https://globalquartztube.com/wood-drying-science-with-carbon-fiber-heating-tubes/ - 分类目录: Uncategorized According to the way water combines with materials, drying science divides materials into three categories. The first category is capillary-porous bodies, where dimensional changes are minimal or nonexistent when moisture changes, such as coke, charcoal, soil, and gravel. The second category is colloids, where both size and volume change with moisture content, such as gelatin. The third category is capillary-porous colloids, which are more common and exhibit characteristics of both previous categories. Many objects we encounter daily, such as wood, leather, grains, food, and medicinal herbs, belong to this category. When drying Rignan wood, it is prone to wrinkling. In the late 1950s, researchers believed this was caused by drying stress, where surface shrinkage was greater than internal shrinkage in the initial stages of drying, resulting in stress inside the wood causing wrinkling in the final product. However, further research revealed that wrinkling is not due to macroscopic drying stress but rather due to microscopic capillary tension. Wrinkling occurs when capillary tension exceeds the transverse compression strength. For example, the compressive strength limit of a certain wood species in its green state (wet state) is 3. 59 MPa. Wrinkling may occur if the pore radius is less than 0. 04 μm. Therefore, understanding the sudden appearance of capillary tension inside wood due to the expulsion of large capillary water during drying is paramount. The model of evaporation of free moisture inside wood is quite tedious, so I will not delve into it here. Instead, let's discuss the mechanism of wrinkling... --- ### Factors Affecting the Drying Efficiency of Waterborne Polyurethane Paint - Published: 2024-07-12 - Modified: 2024-06-25 - URL: https://globalquartztube.com/factors-affecting-the-drying-efficiency-of-waterborne-polyurethane-paint/ - 分类目录: Uncategorized Waterborne polyurethane (WPU) paints are gradually replacing traditional solvent-based paints due to environmental concerns. Unlike organic solvent-based paints, waterborne paints use water as a dispersing and diluting agent. However, due to water's significantly lower volatility compared to organic solvents, drying waterborne paints requires heating during industrial production. Only a few large-scale facilities unable to heat dry or manufacturers with lower production efficiency requirements opt for natural air drying. What are the intrinsic factors affecting the drying efficiency of waterborne polyurethane paints? Today, we will delve into this topic with a focus on waterborne polyurethane. Introduction to Waterborne Polyurethane Waterborne polyurethane, also known as water-dispersible polyurethane or water-based polyurethane, replaces organic solvents with water as the dispersing medium. It offers advantages such as non-toxicity, safety, excellent mechanical properties, good compatibility, and ease of modification. Polyurethane (PU) is a polymer compound containing urethane links in its main chain. Waterborne polyurethane (WPU) refers to PU emulsions dissolved or dispersed in water. Due to its water-based nature, WPU is non-toxic, non-flammable, and environmentally friendly, making it suitable for applications in textiles, leather, paper, rubber, automotive, and furniture industries for decorative and protective purposes. It has gradually replaced solvent-based PU paints. Forms of Water Molecules in Waterborne Polyurethane Paints In waterborne polyurethane paints, water molecules exist in three forms: free water, bound water, and gel water. Compared to solvent-based PU paints, WPU drying process is characterized by a higher initial temperature point for water evaporation. In environments with certain humidity, the vapor pressure of water... --- ### Mid-Wave Infrared Heating Tubes Wavelength - Published: 2024-07-11 - Modified: 2024-06-25 - URL: https://globalquartztube.com/mid-wave-infrared-heating-tubes-wavelength/ - 分类目录: Uncategorized In the electric heating industry, the wavelength of mid-wave infrared heating tubes is strictly between 2μm and 15μm. It's important to note that although these are referred to as mid-wave infrared heating tubes, they do not only emit mid-wave infrared radiation. In this spectrum, mid-wave infrared has the largest proportion, but during normal heating, the tubes also emit visible light, which is another form of light wave, though it does not have a heating effect. Continuous Spectrum Chart Let us learn together about the international standard division of infrared radiation wavelengths. When we use infrared heating tubes or other infrared radiators to radiate heat to an object, the molecules of the object absorb part of the light energy, converting it into vibrational and rotational energy. If we use wavelength or wavenumber as the horizontal axis and absorption rate or transmittance as the vertical axis, we can obtain the infrared absorption spectrum or transmission spectrum of the substance. Wavenumber and wavelength are inversely related, where the wavenumber is defined as the number of wave cycles per centimeter, which is the reciprocal of the wavelength. According to the International Electrotechnical Commission's standards for electric heating, infrared radiation is divided into long-wave infrared, mid-wave infrared, and short-wave infrared, as detailed in the table below. This is the international standard for the classification of infrared bands, although different industries and fields have slightly different definitions for these bands. Below is a table showing how different fields divide the infrared spectrum, measured in micrometers (μm):... --- ### Does Higher Temperature Speed Up Drying? Does Medicinal Herb Slice Retain Its Efficacy After High-Temperature Drying? - Published: 2024-07-10 - Modified: 2024-06-25 - URL: https://globalquartztube.com/impact-of-drying-on-medicinal-herb-efficacy/ - 分类目录: Uncategorized During the drying validation process of medicinal herb slices, we discovered that the maximum temperature these slices can tolerate is significantly lower than the temperature allowed by factory processes. In such cases, the loss of various medicinal components in the herb slices can reach 60% to 70%. Identifying the main factors that affect the loss of these components and the drying quality of the slices is an important issue. First, does the air velocity inside the drying oven have an impact? In validations using Trillium, Paeonia lactiflora, and Mulberry bark, the drying air velocity was 1. 1 m/s, with component loss of 100%, 60%, and an increase of 14. 9%, respectively. For Licorice, Angelica, and Madder root, the velocity was 1 m/s, with losses of 24. 2%, 29. 1%, and 2. 7%, respectively. Atractylodes, Magnolia bark, and others were dried at 0. 5 m/s, with losses of 25. 3%, 2. 8%, and 0%, respectively. These data indicate that internal oven air velocity is not a factor in the loss of medicinal properties of the slices. Second, the initial moisture content of the medicinal materials is not the main factor affecting component loss. Trillium, Angelica, and Citrus peel all had an initial moisture content of 75%, but the losses were 100%, 29. 12%, and 1. 4%, respectively, indicating that initial moisture content is also not a primary factor in component loss. Third, the drying process temperature of medicinal herb slices is a major factor affecting the efficacy of the slices. In... --- ### Introduction to Infrared Drying of Traditional Chinese Medicine Slices - Published: 2024-07-09 - Modified: 2024-06-25 - URL: https://globalquartztube.com/infrared-drying-of-chinese-medicine-key-stages/ - 分类目录: Uncategorized Today, I will share some experimental data on infrared drying of traditional Chinese medicine slices, specifically using an intermittent infrared oven. To facilitate comparison, the size of the oven is the same as the hot air circulation oven used in earlier experiments. Overview of Chen Pi and Huang Bai Chen Pi is a widely used traditional Chinese medicine slice made from dried tangerine peel. It is primarily harvested from Xinhui district in Guangdong, known as "Guang Chen Pi. " It is dried or sun-cured and stored for over a year before being sold. Its primary properties include a bitter and pungent taste, and it is used to regulate qi, strengthen the spleen, dry dampness, and transform phlegm. It is often used in conjunction with hawthorn and Shenqu for treating food stagnation and qi obstruction. Huang Bai is the dried bark of a tree, appearing in plate or shallow groove forms. It is yellow-brown, with a mild scent and bitter taste, and is associated with the kidney and bladder meridians. It is mainly used for treating damp-heat diarrhea, night sweats, nocturnal emissions, eczema, and sores. Absorption Spectrum of Traditional Chinese Medicine Slices Firstly, it is essential to understand the ambient infrared absorption spectra of the medicinal slices. Taking "Chen Pi" (dried tangerine peel) and "Huang Bai" (Phellodendron bark) as examples, these plant-based materials share a common characteristic: they are sensitive to high temperatures. High temperatures can alter their organic molecular structure and diminish their medicinal properties, potentially leading to surface carbonization.... --- ### Carbon Fiber Heater Elements: Four Characteristics of Infrared Radiation Drying of Traditional Chinese Medicine Slices - Published: 2024-07-08 - Modified: 2024-08-18 - URL: https://globalquartztube.com/infrared-drying-in-tcm-efficiency-technology/ - 分类目录: Uncategorized Traditional Chinese medicine (TCM) has historically been dried using one of the oldest methods—sun-drying, which essentially involves the medicinal materials absorbing infrared and far-infrared rays from the sun, leading to a rise in temperature. Today, I would like to share with you how researchers in laboratories have summarized the characteristics of TCM slices when dried using infrared radiation. Please feel free to correct any misunderstandings. Infrared and Far-Infrared Emission by Carbon Fiber Heater Elements Once activated, the carbon fiber heater elements emit infrared and far-infrared radiation ranging from 2μm to 14μm, a spectrum that most biological materials can absorb. This range is also the part of sunlight that makes us feel warm. The heating and absorption efficiency in this spectrum is quite high. Therefore, we use a radiation source with a set spectrum to heat and dry the slices, recording and analyzing the entire process to eventually draw some conclusions. Five Key Characteristics of Infrared Radiation Drying Using Carbon Fiber Heater Elements Through repeated verification, I have found that the drying process of TCM slices using carbon fiber heater elements exhibits five main characteristics, which also serve as a reverse verification of our drying theory for these medicinal slices. Power Dependency: The amount of heat absorbed by the TCM slices in an infrared radiation environment is highly related to the power of the carbon fiber heater elements. The power of the heating elements influences the range of the infrared spectrum emitted. The energy absorbed by the slices from this spectrum... --- ### Research on Rapid Curing of Artificial Woodworking Board Powder Coating Using Carbon Fiber Heater Element Infrared Radiation - Published: 2024-07-05 - Modified: 2024-08-18 - URL: https://globalquartztube.com/eco-friendly-curing-for-woodworking-boards/ - 分类目录: Uncategorized Global demand for woodworking products remains robust, highlighted by the extensive production of artificial boards exceeding 100 million cubic meters annually. Among these, Medium Density Fiberboard (MDF) stands out, with annual production volumes reaching 30 million square meters. When calculated at a standard thickness of 16mm, this amounts to approximately 1. 8 billion square meters of MDF annually. These boards are expertly crafted using wood fibers bonded with formaldehyde-based adhesives, catering to diverse industrial needs worldwide. Problem Statement Due to the high porosity of artificial boards, traditional paint coatings allow the capillary pores of wood fibers to emit formaldehyde during the use of the furniture, posing hazards in residential and office environments. The International Agency for Research on Cancer classified formaldehyde as a Group 1 carcinogen in 2004. Previously, the production of artificial boards in China exceeded this standard by eight times. Therefore, there is a significant environmental issue with VOCs (Volatile Organic Compounds) emissions and formaldehyde emissions from furniture, posing a major health risk to people in these environments. This remains a critical problem that the artificial board processing industry needs to address. Solution through Technology Using powder coating with carbon fiber heater element infrared radiation for quick curing on artificial boards can achieve zero formaldehyde and zero VOCs emissions. This special technology comes from the Optoelectronics Engineering Research Lab at the Academician Workstation of Wuyuan Science and Technology. However, there are still two issues that need further research and improvement: Electrical Conductivity of Board Surfaces: The main factors... --- ### Selection of Infrared Heating Tubes for Drying Hydrated Wet Materials: Short-wave or Medium-long Wave? - Published: 2024-07-04 - Modified: 2024-06-25 - URL: https://globalquartztube.com/selection-of-ir-heating-tubes-short-or-medium-long-wave/ - 分类目录: Uncategorized Capillary multi-porous colloidal materials, as previously mentioned, are one of the most common types of materials encountered in everyday life and production processes. Examples include wood, leather, and food. These materials are a major focus in the study of drying due to the relative ease with which water can be expelled from large capillaries, whereas the extraction of water from micro-capillaries or cell walls is considerably more challenging. Consequently, the migration process of internal moisture in these materials involves both large and micro-capillaries, including the expulsion of free water within cell cavities. The energy consumed in the bonding of water within the material manifests not only in the expulsion of water from cell walls or at equilibrium moisture content but throughout the entire drainage process. Thus, the drying process should be viewed as a comprehensive transfer of energy and matter. Given the complex structure of materials, such as thermosensitive and biologically active materials (e. g. , seeds), the mechanisms of heat and mass transfer processes are complex. Understanding Water Forms and Absorption Peak Wavelengths in Materials Water in materials can be chemically bound, physico-chemically bound, or mechanically bound. Chemically bound water, where water is bonded to solids by chemical forces (e. g. , water of crystallization in copper sulfate pentahydrate, CuSO4·5H2O), is typically challenging to remove through heating and is not generally considered part of the drying process, although successful drying using carbon fiber infrared heating has been achieved with dolomite balls. Physico-chemical binding occurs when water or solvents bind... --- ### Heat Transfer Driven by Temperature Differences: Applications and Distinctions in Engineering Thermodynamics and Heat Transfer - Published: 2024-07-03 - Modified: 2024-07-03 - URL: https://globalquartztube.com/heat-transfer-in-engineering-key-principles-and-applications/ - 分类目录: Uncategorized Heat Transfer in Our World In the myriad worlds where we live, various processes occur constantly, one of the physical processes most closely related to human survival is the transfer of heat energy. From the central air conditioning in modern buildings to the formation of natural weather phenomena like frost, rain, and snow, from the thermal protection challenges of spacecraft re-entering the atmosphere to the effective cooling of electronic devices, from the seasonal changes in people's clothing to the frozen storage of human food, all are closely related to the process of heat transfer. The Study of Heat Transfer Heat transfer studies are a discipline that investigates the laws of heat or energy transfer caused by temperature differences. The Second Law of Thermodynamics states: wherever there is a temperature difference, heat naturally transfers from a higher temperature object to a lower temperature object. This transferred heat is often referred to as thermal energy. Temperature differences exist everywhere in nature and various fields of production technology, making heat transfer a very common physical phenomenon. For instance, winds in nature are caused by temperature differences between two places, causing air to flow from a higher temperature area to a lower temperature area, further influenced by the Earth's rotation to form wind. Ocean currents and typhoons are also caused by temperature differences leading to the movement of water or air. In industrial production, using carbon fiber heating tubes to heat products also involves transferring the heat from the heating tubes to the heated... --- ### Key Material Characteristics in Drying Mechanics - Published: 2024-07-02 - Modified: 2024-07-03 - URL: https://globalquartztube.com/key-material-characteristics-in-drying-mechanics/ - 分类目录: Uncategorized Introduction to Drying Mechanics In the field of drying mechanics, the hard work of researchers studying the dynamics of drying is indispensable. Without their relentless experimentation, we would not have ready-to-use process parameters for drying or baking products using carbon fiber heater elements. Drying dynamics involve studying the dehydration of materials during the drying process and its relationship with various governing factors. These factors are divided into two main categories. Intrinsic Material Characteristics The first category is the characteristics of the materials themselves, including structural features, biological characteristics, pear flower characteristics, and thermophysical properties. These are intrinsic factors. Heating Conditions The second category includes the heating conditions, which comprise heating parameters and methods. Heating parameters include radiation heating temperature, heating power, dry and wet bulb temperatures, airflow direction and speed. Heating methods encompass constant and variable temperature supply, rapid or slow temperature rise, constant temperature duration, and cooling methods. These are external factors. Interaction of Internal and External Factors By integrating internal and external factors, the goal is to understand how moisture inside different materials diffuses to their surface and evaporates from there. This involves studying the resistance encountered by moisture as it migrates or diffuses inside materials, and how these resistances relate to the structure of the materials and their ability to absorb external energy. This is an exploration of the heat and mass transfer characteristics of wet materials. Drying dynamics, based on the search for material drying laws, establish optimized heating schemes and drying cycles. This provides a... --- ### Tunnel Oven Carbon Fiber Heater Element - Published: 2024-07-01 - Modified: 2024-07-01 - URL: https://globalquartztube.com/tunnel-oven-carbon-fiber-heater-element/ - 分类目录: Uncategorized Recognizing the diverse needs of our clients, we offer custom-made carbon fiber heater elements that can be tailored to fit various specifications. Whether you need a 1. 95-meter-long element for large-scale industrial applications or shorter 300mm versions for more compact setups, our products are designed to meet your exact requirements. This customization helps in achieving optimal performance and energy efficiency. 1. 95 meters long carbon fiber heater element, custom-made for clients Extended transition zone carbon fiber heater element for tunnel ovens 500mm 1000W carbon fiber quartz heater element 300mm carbon fiber heater element 700mm carbon fiber electric heater element Global Quartz Tube is dedicated to delivering high-quality, customizable carbon fiber heater elements for various industrial applications. For more information or to discuss your specific requirements, please visit our website or contact us at contact@globalquartztube. com. --- ### Principle of Infrared or Far Infrared Heating - Published: 2024-06-28 - Modified: 2024-06-26 - URL: https://globalquartztube.com/principle-of-infrared-or-far-infrared-heating/ - 分类目录: Uncategorized Infrared Radiation Infrared (IR) radiation refers to electromagnetic waves with wavelengths ranging from 1 millimeter to 760 nanometers (nm), lying between microwaves and visible light. It is non-visible light emitted by substances above absolute zero (-273. 15°C). Modern physics categorizes IR as thermal radiation, which in medical applications divides into near-infrared and far-infrared. A common source of IR in daily life is the sun, which transmits its heat to Earth primarily through IR, providing warmth and earning IR the nickname "light of life. " As depicted in the diagram, IR extends beyond red light in the spectrum (with ultraviolet beyond violet), remaining invisible to the naked eye. Classification Based on Radiation Source IR can be classified into four types based on the emitting source: Incandescent Emission Range (Actinic range): Also known as the "photochemical reaction zone," this includes radiation emitted by incandescent objects, spanning from visible light to infrared. Examples include tungsten filament lamps and the sun. Thermal Emission Range (Hot-object range): Radiation emitted by non-incandescent objects such as electric irons and other electrical heaters, typically operating at an average temperature of around 400°C. Heat Conduction Range (Calorific range): Radiation produced by boiling water or steam pipes, with average temperatures below 200°C. This zone is also termed the "non-actinic region" due to its absence of photochemical reactions. Warm Radiation Range (Warm range): Radiation emitted by humans, animals, or geothermal sources, typically at an average temperature of about 40°C. Penetration and Effects of Infrared Radiation IR radiation, with longer wavelengths compared... --- ### Research on Drying Nine Types of Fruits and Vegetables Using Far-Infrared Technology with Carbon Fiber Heating Tubes - Published: 2024-06-28 - Modified: 2024-06-28 - URL: https://globalquartztube.com/far-infrared-drying-of-fruits-and-vegetables-study/ - 分类目录: Uncategorized Introduction to Far-Infrared Drying Technology Far-infrared devices utilize principles of structural chemistry and photochemistry to activate water molecules within fruits and vegetables, causing them to vibrate. This changes the aggregation state of the water molecules while combining heat radiation and other properties to facilitate the removal of moisture from the fruits and vegetables, thereby enhancing dehydration efficiency. Dehydrated fruits and vegetables are able to maintain their original color, aroma, and taste well. The advantages of far-infrared drying technology include short dehydration time, strong light penetration ability, good rehydration properties of materials, simple operation, low energy consumption, no pollution, and low investment. Equipment Used in the Study The equipment used in the study was a small-scale device custom-designed by a company according to production needs, with a maximum input capacity of about 1kg. The maximum output power of the radiation source is 1000W. It uses specially made carbon fiber heating tubes. During drying, the intensity of irradiation can be adjusted by varying the distance between the lamp tube and the material. The upper and lower ventilation devices are used to remove moisture from the drying chamber and adjust the temperature inside, with an exhaust air speed of 0. 3-0. 4m/s. Experimental Procedure The experiment involved various vegetables and fruits, including scallions, spinach, coriander, cucumbers, carrots, apples, pears, grapes, and cantaloupe. The method of drying involved initially washing the raw materials, removing unnecessary parts, slicing grains, and shredding vegetables. Materials with skins required peeling before slicing. During the experiment, the cut materials... --- ### Efficient Textile Drying with Carbon Fiber Heating Elements - Published: 2024-06-27 - Modified: 2024-06-28 - URL: https://globalquartztube.com/efficient-textile-drying-with-carbon-fiber-heating-elements/ - 分类目录: Uncategorized Today, we are sharing a case study where a new client of ours wanted to validate "carbon fiber heating elements for drying and curing in the textile industry. " Previously, the client used traditional resistance wire heating elements, but due to inadequate production efficiency, they sought a more efficient heating and drying method. Initial Discovery When the client approached us, they were unfamiliar with our carbon fiber heating elements. After introducing the product features, we sent them three samples for experimentation. Upon receiving the samples, they encountered an unexpected issue and promptly contacted us for clarification. Surprising Results The client observed that our carbon fiber heating elements exhibited different temperature readings compared to conventional heating elements. Specifically, even at a temperature displayed around 150 degrees Celsius on the controller, fabrics were unexpectedly charred. This puzzled the client because conventional chemical products typically require temperatures above 250 degrees Celsius for carbonization. Why could our carbon fiber heating elements char fabrics at only 150 degrees Celsius? Understanding the Phenomenon The main reason lies in the heating principles of carbon fiber heating elements versus traditional resistance wire elements. Carbon fiber heating elements primarily heat objects through infrared radiation. In a sealed environment, the outer quartz tube of the heating element first radiates infrared heat. In the presence of air, carbon fiber heating elements not only heat through infrared radiation but also transfer heat through convection and conduction. Efficiency of Infrared Heating Traditional resistance wire heating elements heat objects mainly through convection, requiring surrounding... --- ### Advantages and Disadvantages of Using Carbon Fiber Heating Tubes for Drying Fruits and Vegetables, and Necessary Parameter Adjustments - Published: 2024-06-27 - Modified: 2024-06-28 - URL: https://globalquartztube.com/infrared-drying-of-produce-pros-cons-adjustments/ - 分类目录: Uncategorized The article "Common Drying Methods for Fruits and Vegetables in Industrial Production and Their Pros and Cons" mentions the use of carbon fiber heating tubes for infrared radiation heating and drying. This method boasts several advantages such as shorter drying times, lower energy consumption per unit, and improved quality of dried products. Today, we will share more detailed research findings on infrared radiation drying of fruits and vegetables. Research Findings on Infrared and Far-Infrared Drying Let's first list some of the international research findings on infrared or far-infrared drying. Nowak's study on apple slice drying showed that, under the same drying conditions, infrared drying reduced drying time by 50% compared to hot air drying. Sandu reported that, at a hot air temperature of 250 degrees Celsius, the heat flux of convective drying is 0. 9-2. 0KW/m2, while the heat flux of radiation heating is 4. 5-12KW/m2. Therien's research also found that the heat flux of infrared drying is 6-10 times higher than that of hot air drying, confirming that infrared radiation heating is significantly more efficient. Furthermore, many scholars have found that infrared drying, or a combination of infrared and other drying technologies, can greatly reduce drying times and energy consumption for other agricultural products. Afzal's research showed that combining far-infrared drying with convective drying reduced the drying time for barley by 60% and decreased electricity consumption by 40%-70%. Paakkonen found that drying rosemary from a moisture content of 60%-70% to 8% took 24 hours with hot air drying, but... --- ### Why Carbon Fiber Heaters Excel in Industrial Drying Ovens - Published: 2024-06-26 - Modified: 2024-06-28 - URL: https://globalquartztube.com/why-carbon-fiber-heaters-excel-in-industrial-drying-ovens/ - 分类目录: Uncategorized In many industrial production lines, drying ovens are commonly used to facilitate drying processes. Traditionally, these ovens have relied on either hot air circulation or resistance wire heating for operation. However, both methods suffer from inefficiencies: low heat utilization leading to high energy consumption and suboptimal drying efficiency, often resulting in slow production line speeds. Market Demand and Technological Advancements With increasing market competition and a global push towards green manufacturing, reducing production costs and enhancing efficiency have become imperative. This has spurred interest in electric heating solutions that offer lower energy consumption and higher operational efficiency. In response to these needs, two types of heating elements have emerged as promising alternatives: tungsten wire infrared heaters and carbon fiber heaters. Tungsten Wire Infrared Heaters Both types of heaters utilize quartz tubes, typically encased in transparent or ruby quartz for protection. These tubes are evacuated or filled with inert gases to facilitate heat generation through electric resistance wires, emitting different wavelengths of infrared and far-infrared radiation depending on the absorption characteristics of the heated object. Comparative Advantages and Disadvantages Disadvantages: Both heater types share certain drawbacks, primarily related to their construction using fragile quartz tubes. This fragility becomes critical for tubes exceeding 600mm in length, where installation and transportation require careful handling to avoid breakage. Moreover, any cracks or damage to the external quartz tube renders the heating element unusable, often resulting in immediate failure upon activation. Advantages: Quick Start-up: Both heaters boast rapid activation times compared to traditional stainless steel... --- ### Common Drying Methods for Fruits and Vegetables in Industrial Production and Their Pros and Cons - Published: 2024-06-26 - Modified: 2024-06-25 - URL: https://globalquartztube.com/seven-common-drying-methods-for-fruits-and-vegetables/ - 分类目录: Uncategorized Introduction to Water Content in Fruits and Vegetables Water is the main component of fresh fruits and vegetables, typically ranging from 70% to 95% in content. Water in fruits and vegetables exists in three different states: free water, colloidal-bound water, and chemically-bound water. Free water moves through the capillaries and by osmosis within the fruits and vegetables, having a greater mobility and being easily removed during drying. Some colloidal-bound water can be removed during drying, whereas chemically-bound water generally cannot be removed by drying. Why Do We Dry Fruits and Vegetables? The primary reason for drying fruits and vegetables is to prevent rot and extend their shelf life. The principle behind this is that the bound water, which cannot be removed by drying, represents the equilibrium moisture content of the fruit or vegetable tissue under drying conditions. The dehydration drying process transforms fruits and vegetables from a wet state to a dry state, removing a significant amount of free water and some colloidal-bound water. As the internal moisture content decreases, the water activity also reduces, inhibiting or hindering microbial growth and enzyme activity in the fruits and vegetables, thereby extending their storage life. Basic Process of Fruit and Vegetable Drying The basic process involves transferring heat from a heat source to the fruits and vegetables, causing continuous migration and surface evaporation of moisture within the tissue and cells, achieving the drying effect. Dehydrated fruits and vegetables retain most of their nutrients, and despite some differences in taste and appearance compared... --- ### Infrared Radiation: What Kind of Heating Method Is It? - Published: 2024-06-25 - Modified: 2024-06-28 - URL: https://globalquartztube.com/infrared-radiation-what-kind-of-heating-method-is-it/ - 分类目录: Uncategorized Infrared radiation is frequently mentioned in various articles, particularly in reference to carbon fiber infrared heating tubes, as a form of radiant heating. So, what is radiant heating? Today, I will provide a detailed explanation of thermal radiation, one of the three modes of heat transfer. The Process of Radiative Heat Transfer Radiation is a method of energy transfer using electromagnetic waves. Objects emit radiation for various reasons, and the phenomenon of emitting radiation due to heat is referred to as thermal radiation. In nature, every object continuously emits thermal radiation into the surrounding space while simultaneously absorbing thermal radiation emitted by other objects. Under an infrared scanner, all objects will display some temperature indication or scanning image, except for a theoretical pure blackbody, which exhibits no thermal radiation. Characteristics of Radiative Heat Transfer The natural processes of radiation and absorption collectively result in heat transfer between objects via radiation, also commonly known as infrared radiation heat exchange. When an object is in thermal equilibrium with its surroundings, the net radiative heat transfer is zero. However, this does not imply an absence of radiation exchange in the environment; rather, the energy radiated by objects in the environment is equal to the energy they absorb, achieving a relative balance where the processes of radiation and absorption are continuously active. Radiative Heat Transfer versus Conduction and Convection Unlike radiation, the other two heat transfer modes, conduction and convection, require a medium for energy transmission, such as solid materials, air, water, or other... --- ### Is Infrared Scattering Considered When Using Carbon Fiber Heating Tubes to Dry Wet Materials in Industrial Production? - Published: 2024-06-24 - Modified: 2024-06-25 - URL: https://globalquartztube.com/does-infrared-scattering-affect-drying-with-carbon-fiber-tubes-in-industry/ - 分类目录: Uncategorized In industrial production, electrical heating is commonly used to heat and dry wet materials. The main drying principles include the following: the first involves heating materials through a high ambient temperature to achieve drying; the second uses microwaves to heat and dry materials; the third employs infrared radiation heating; and the fourth involves low-temperature dehydration drying. These processes vary in technique but share the same goal: to expel moisture from wet materials, resulting in a dry product to reduce storage and transportation costs and storage duration. Infrared Radiation Scattering and Reflection within Material Structures Today, let's briefly discuss whether we need to consider the microscopic structure of materials and their effect on the reflection and scattering of infrared radiation when using carbon fiber heating tubes for drying. The scattering intensity of radiation by liquids and solids is directly proportional to their thermodynamic temperature and is affected by the material's density, typically increasing with greater density. Additionally, it is related to the liquid's surface tension, increasing as surface tension decreases. Water has the highest surface tension coefficient, thus exhibiting lower radiation scattering compared to other liquids. When mid to long-wave infrared radiation interacts with starch granules or plant cells, it excites complex vibrations. Therefore, the vibrations of a particle are not constant, and the particle's scattering of radiation includes the combined effects of reflection, refraction, and secondary radiation. Scattering phenomena at the molecular level generally occur where the material is heterogeneous, such as areas with density gradients, moisture gradients, temperature gradients,... --- ### Why Carbon Fiber Heaters Fail with Quartz Tube Damage? - Published: 2024-06-21 - Modified: 2024-06-28 - URL: https://globalquartztube.com/why-carbon-fiber-heaters-fail-with-quartz-tube-damage/ - 分类目录: Uncategorized Some users have expressed concerns when using carbon fiber infrared heating elements: "Why does the heating element cease to function after the outer quartz tube is damaged? " Let's explore this issue today. Carbon Fiber Vacuum Heating TubesThe development of resistive heating elements has evolved from traditional metal resistance wires to alloy resistance wires, and now to carbon fiber heating wires. Typical metal resistance wires include tungsten wire infrared heating tubes, and for alloy wires, there are iron-nickel alloy heating tubes. The thermal stability of these heating wires varies, which dictates their suitable operating environments. Metal resistance wires and carbon fiber heating wires, due to their inferior temperature performance when heated, require a vacuum or an inert gas environment to function effectively for extended periods. On the other hand, iron-nickel alloy wires and similar alloys exhibit higher thermal stability, allowing them to be heated directly in open air. This explanation clarifies why carbon fiber infrared heating elements cannot be used if they are exposed to air or are physically damaged. The quartz tube surrounding the carbon fiber wires plays a crucial role in protecting these wires from oxidation and environmental contaminants. Additionally, it helps maintain a sealed, controlled atmosphere that is essential for the efficient operation of the heating elements. When the quartz tube is compromised, either through cracks or breaks, it fails to protect the delicate carbon fibers from oxidizing and becoming physically damaged, ultimately leading to the failure of the heating element. It's essential to handle carbon fiber... --- ### Proper Installation of Screw Joint Carbon Fiber Heater Elements - Published: 2024-06-20 - Modified: 2024-06-28 - URL: https://globalquartztube.com/proper-installation-of-screw-joint-carbon-fiber-heater-elements/ - 分类目录: Uncategorized Screw joint carbon fiber heater elements are popular due to their high temperature resistance compared to wire joint elements. Despite this, their installation is technically challenging and requires precision to prevent damage. Handling and Precautions Fragility of Quartz: The carbon fiber heater elements are encased in fragile quartz. Improper handling during installation could lead to twisting and potential breakage, rendering the element inoperable. Risks with Stainless Steel Tubes: Technicians previously using stainless steel tubes may apply similar methods to carbon fiber elements, which can lead to damage due to the differing fragility. Installation Guidelines Avoid Using Screws for Securing: The screws at both ends of the heater element are for electrical conduction and must not be used as mechanical anchors. Over-tightening these screws can damage the molybdenum rod and the quartz, leading to poor electrical contacts and potential hazards. Clamp Use: Always use the manufacturer-provided metal clamps for installation. Alternative methods may cause the element to vibrate excessively, risking damage to the quartz casing. Connecting the Power Lines Double Nut and Washer Method: This method ensures robust electrical contacts and prevents damage during the tightening of nuts. Flexible Connections: Opt for flexible connections at the power supply points. Avoid direct connections to rigid bus bars, which can strain the element during thermal expansion or equipment movement, increasing the risk of breakage. Step-by-Step Installation Process Preparation: Check for any damage on the heater element and screw positions. Adjust a nut to the required position for installation and prepare the power line... --- ### How to Increase the Upper Temperature Limit of Carbon Fiber Heater Elements? - Published: 2024-06-19 - Modified: 2024-06-28 - URL: https://globalquartztube.com/how-to-increase-the-upper-temperature-limit-of-carbon-fiber-heater-elements/ - 分类目录: Uncategorized Many manufacturers of carbon fiber heater elements produce tubes with a maximum operating temperature of around 300 degrees Celsius. Above this temperature, the lifespan of the heating tubes significantly decreases. Moreover, the silicone layer of high-temperature resistant wires tends to powderize over time in high-temperature environments, gradually losing its insulating properties. Prolonged use can lead to electrical leaks in equipment, and inadequate protection measures can easily lead to safety accidents. So, how can we solve this problem? First, let's analyze the factors that limit the maximum operating temperature. We mainly analyze from the physical properties of the raw materials: Quartz Tubes: Quartz tubes can be used for extended periods at temperatures up to 1100 degrees Celsius, so there will be no issues at 300 degrees Celsius. Heating Wire: Carbon fiber is used as the heating wire in carbon fiber heater elements, and it can maintain its physical and chemical properties up to 2700 degrees Celsius in a vacuum, so there is no issue with the heating wire. Pure Molybdenum Electrodes: Molybdenum can maintain its physical and mechanical properties up to 2400 degrees Celsius, so the electrodes are not the problem. High-Temperature Resistant Wires: The heat resistance grade of high-temperature wires is 350 degrees Celsius. Above this temperature, the wires will lose their insulating properties, thus determining the temperature resistance level of carbon fiber heater elements. Second, let’s analyze the temperature limit issue from the operational condition of carbon fiber heater elements. Ten seconds after being powered on, the temperature at... --- ### Precautions for Installing Quartz Heating Elements - Published: 2024-06-18 - Modified: 2024-06-28 - URL: https://globalquartztube.com/precautions-for-installing-quartz-heating-elements/ - 分类目录: Uncategorized Handle with Care During Transportation and Installation Due to the material and structure, the quartz tubes and internal filaments of infrared heating elements may break under significant vibration. It is crucial to avoid heavy vibration and compression when moving and stacking these elements to prevent damage from external forces. Use Both Hands for Handling Avoid picking up an infrared heating element by one end with one hand, as the end of the quartz tube (especially the pressure-sealed end) can easily break due to bending forces. Wear Gloves During Installation It is advisable to wear soft cotton gloves when picking up and installing the elements. This not only prevents oil and sweat from contaminating the element, affecting the heating efficiency, but also protects hands from cuts in case the element breaks during installation. Avoid Rigid Fixation; Leave a Gap Avoid rigidly fixing the quartz tube heating element body or the ceramic ends. Although the thermal expansion of the element is minimal, the tube may deform or twist during heating. Rigid fixation could cause damage. Ensure there is enough gap between the ceramic ends of the element and the supporting equipment, ideally 1-3mm around. Maintain a Tilt Angle of Less Than 30 Degrees for Horizontal Installation When installing the heating element horizontally, keep the tilt angle within 30 degrees to ensure safety during heating. Contact our product department for any special requirements for inclined or vertical installations. Careful Installation of Lead Wires, Ensure Insulation for Safety When installing the heating element's power... --- ### Quartz Heating Tube Lifespan and Durability Test - Published: 2024-06-17 - Modified: 2024-06-28 - URL: https://globalquartztube.com/quartz-heating-tube-lifespan-and-durability-test/ - 分类目录: Uncategorized Introduction: Quartz heater tubes are widely utilized in various industrial applications due to their high thermal efficiency and rapid heat transfer capabilities. However, understanding their lifespan and durability under extreme conditions is crucial for ensuring reliability and cost-efficiency in industrial operations. Lifespan of Quartz Heater Tubes: Typically, quartz heater tubes offer a functional lifespan ranging between 2,000 to 3,000 hours. This duration can vary based on the operating environment, frequency of use, and maintenance practices. Durability Test Overview: To assess the robustness of quartz heater tubes compared to carbon fiber heating tubes, a controlled destructive test was conducted. Both types of tubes were subjected to continuous electrical power for thirty minutes to simulate a high-stress working condition. Experimental Setup: Power Application: Both quartz and carbon fiber heating tubes were energized for half an hour to evaluate their performance under sustained electrical stress. Water Immersion Test: Immediately following the power application, the tubes were submerged in water while still being powered. This scenario tests the tubes’ structural integrity and thermal shock resistance. Results: Quartz Heater Tubes: The tubes exhibited a susceptibility to cracking under the dual stress of heat and sudden cooling, indicative of potential vulnerabilities in thermal shock environments. Carbon Fiber Heating Tubes: In contrast, the carbon fiber tubes demonstrated superior durability, withstanding the harsh conditions without any damage, thereby continuing to operate effectively. Discussion: The results suggest that while quartz heater tubes are effective in standard conditions, their performance can be compromised under extreme stress or sudden environmental changes.... --- ### Non-Metal High-Temperature Radiant Electric Heat Film Technology—Far Infrared Quartz Heating Tubes - Published: 2024-06-14 - Modified: 2024-06-28 - URL: https://globalquartztube.com/non-metal-high-temperature-radiant-electric-heat-film-technology-far-infrared-quartz-heating-tubes/ - 分类目录: Uncategorized Introduction to Non-Metal High-Temperature Radiant Electric Heat Film Technology This technology primarily utilizes far-infrared energy for radiant heating, offering rapid temperature rise and high heating temperatures. It can be designed as either high-temperature or low-temperature radiant heating components, suitable for products involving high-temperature radiant heating and low-temperature radiant heating, especially in liquid heaters. It is efficient, energy-saving, low-carbon, environmentally friendly, and reliably safe. Manufacturing Technology of Far Infrared Quartz Heating Tubes The manufacturing process begins by scientifically blending multiple nano-sized oxides to create a transparent liquid formulation (referred to as an electric heat film formulation). A natural high-quality quartz tube is then placed in a specially designed vacuum coating device. Upon heating to 600–700°C, the electric heat film formulation is sprayed into the coating equipment using a meteorological method. At high temperatures, the formulation undergoes complex physical changes and chemical reactions. The surface of the quartz tube forms a semiconductor-like micrometer-level conductive heating thin film through ionic and atomic bonds. This results in a new type of non-metal high-temperature radiant electric heat film element—far infrared quartz heating tubes. Main Advantages of Far Infrared Quartz Heating Tubes Resistance to Strong Thermal Shock: Can withstand rapid temperature changes from 800°C to 1200°C, and repeated immersion into cold water below 20°C without bursting, ensuring stability, safety, and high reliability. Complete Separation of Water and Electricity: High safety as the electric heat film is only attached to the outer surface of the quartz tube. In case of damage, the quartz tube remains intact, preventing... --- ### Fused Quartz Tubes - Published: 2024-06-13 - Modified: 2024-06-28 - URL: https://globalquartztube.com/fused-quartz-tubes/ - 分类目录: Uncategorized Characteristics of Fused Quartz Tubes Extremely Low Thermal Expansion Coefficient: This results in exceptional thermal shock stability. They can withstand high temperatures without deforming, enduring drastic temperature changes up to 1100°C, even in oxidizing environments. Excellent Corrosion Resistance: The surface of the product is highly durable. High Purity of Chemical Composition: This ensures that the composition and surface quality of products in contact with these tubes remain uncontaminated. Superb Ceramic Physical Properties: Ensures stable performance at both environmental and high working temperatures with minimal dimensional errors and excellent surface quality. Each tube has a stable axle head, is numbered, and comes with a quality inspection report, providing traceability. Fused Quartz Ceramic Roller Rods Extremely Low Thermal Expansion Coefficient and Strong Thermal Shock Stability: High temperature deformation resistance. High Purity of Raw Materials and Excellent Chemical and Physical Properties. Precision Manufacturing Processes: Ensures precise dimensional accuracy. Reliable Axle Head Connection Technology. Colored Quartz Tubes Black Quartz Tubes Black quartz tubes are made from high-purity quartz sand obtained from premium natural quartz stones. They possess all the excellent properties of quartz tubes, such as high-temperature resistance and corrosion resistance. Their peak wavelength at 365nm filters out red, yellow, and blue light, making them key materials for metal detector lamps, anti-counterfeiting lamps, and stage lighting. Red Quartz Tubes Red quartz tubes contain several trace elements that block all ultraviolet and some visible light while efficiently utilizing infrared light. They feature infrared radiation, rapid heating, soft luminescence, and are energy-efficient and environmentally friendly. They... --- ### What is Carbon Fiber Heater Element - Published: 2024-06-12 - Modified: 2024-06-28 - URL: https://globalquartztube.com/what-is-carbon-fiber-heater-element/ - 分类目录: Uncategorized Introduction to Carbon Fiber Heater Elements Carbon fiber heater elements, also known as carbon fiber electric heating tubes, infrared heating tubes, infrared electric heating tubes, carbon fiber infrared heating tubes, etc. , consist of a carbon fiber filament placed inside a quartz tube. The tube is vacuum-sealed, and when voltage is applied to the carbon fiber filament, it heats up and generates heat. Our products use imported carbon fiber heating elements and offer advantages such as high power capacity, high temperature resistance, strong thermal energy, long service life, and adjustable power. Carbon fiber is a fibrous carbon material. It is a new type of material with many valuable electrical, thermal, and mechanical properties, such as greater strength than steel, lower density than aluminum, more corrosion resistance than stainless steel, higher temperature resistance than heat-resistant steel, and electrical conductivity similar to copper. Carbon fiber heaters utilize the good thermal conductivity of carbon fiber as the heat-conducting medium at both ends, achieving rapid heating effects. Due to carbon's insulating properties, these heaters can also be used in bathrooms. The emergence of carbon fiber heater elements has sparked a new revolution in the electric heating field, replacing metal heating elements as an inevitable trend. Carbon fiber infrared heating elements differ from traditional electric heating tubes, such as metal wires and halogens, by offering longer service lives, high electric-to-heat conversion efficiency, infrared radiation, and environmental health benefits. Key Performance Features and Benefits Stable Electrical Performance: After being powered, carbon fiber heater elements maintain power... --- ### What is Quartz Heater Tube - Published: 2024-06-11 - Modified: 2024-06-28 - URL: https://globalquartztube.com/what-is-quartz-heater-tube/ - 分类目录: Uncategorized I. Overview and Energy-Saving Principle of Quartz Tube Heaters Quartz tube heaters utilize milky white quartz glass tubes that have been specially processed, combined with resistive materials as heating elements. The milky white quartz glass is capable of absorbing nearly all visible light and near-infrared light emitted from the heating wire, converting it into far-infrared radiation. Hence, milky white quartz is a highly efficient converter of far-infrared energy and exhibits excellent far-infrared radiation characteristics. Once powered, 95% of the near-infrared and visible light emitted by the heating alloy wire is blocked, absorbed by the milky quartz tube, increasing the temperature inside the tube and producing molecular vibrations of pure silica bonds, radiating far-infrared rays. This conversion makes the 95% of visible and near-infrared light transform into far-infrared radiation, where wavelengths longer than 2. 5 micrometers are classified as far-infrared. Far-infrared heating refers to the heating technology that uses radiation with wavelengths between 2. 5 and 25 micrometers. II. Features of Quartz Heater Tubes The radiation rate is stable, it remains un-deformed at high temperatures, emits no harmful radiation, does not pollute the environment, and is resistant to high temperatures and corrosion. It has good chemical stability, low thermal inertia, fast thermal response speed, and high heat conversion efficiency. III. Technical Characteristics of Quartz Heating Tubes No need for a far-infrared coating, good spectral radiation matching absorption characteristics, long-term use without degradation in radiative performance, and high electric-heat conversion efficiency, saving about 30% more energy than general heating elements. High operating... --- ### Cerium-doped quartz tubes - Published: 2024-06-10 - Modified: 2024-06-28 - URL: https://globalquartztube.com/cerium-doped-quartz-tubes/ - 分类目录: Uncategorized In the field of advanced industrial materials, continuous innovation and high-performance solutions are crucial. Ce doped quartz tubes represent a significant advancement in materials science, offering enhanced performance for optical and thermal applications. Here, we will explore the benefits and various applications of Cerium-doped quartz tubes. The Advantages of Cerium-Doped Quartz Tubes Enhanced UV Blocking and Transmission Cerium-doped quartz tubes excel in applications that require precise control over ultraviolet (UV) light. By embedding cerium ions within the quartz structure, these tubes significantly improve UV blocking capabilities. This feature is crucial for systems such as UV curing processes, phototherapy equipment, and UV sterilization systems, ensuring optimal performance and protection against UV exposure. Improved Thermal Stability The inclusion of cerium enhances the quartz's ability to withstand higher temperatures and offers greater resistance to thermal shock. This makes cerium-doped quartz tubes ideal for demanding environments like high-temperature lighting systems and chemical processing equipment. Their superior thermal stability ensures reduced risk of failure under extreme conditions, enhancing reliability and durability. Chemical Durability The chemical durability of quartz tubes is also enhanced through cerium doping. These tubes become more resistant to corrosion by various chemicals, which is essential for applications within the chemical manufacturing and processing industries. This increased durability significantly extends the tubes’ service life, thereby reducing maintenance and replacement costs. Environmental Resistance With improved environmental resistance, cerium-doped quartz tubes are well-suited for use in harsh conditions, including outdoor applications or in equipment exposed to corrosive gases or fluctuating temperatures. Their robustness ensures maintained... --- ### Everything You Want to Know About Carbon Fiber Heater Elements - Published: 2024-06-07 - Modified: 2024-06-28 - URL: https://globalquartztube.com/everything-you-want-to-know-about-carbon-fiber-heater-elements/ - 分类目录: Uncategorized 1. Heating Principle and Features of Carbon Fiber Heater Elements 1. 1 Heating Principle Carbon fiber heater elements emit far-infrared radiation through the stimulation of an electric current, resulting in heat generation. When an electric current passes through the carbon fiber filaments, they heat up. The heated carbon fiber filaments radiate far-infrared rays, transferring heat to other substances. 1. 2 Features Fast Heating Speed: The thermal response time of carbon fiber heater elements is very short, reaching the second level. Even Heating: The heating area of carbon fiber heater elements is relatively uniform, avoiding localized overheating. Eco-friendly and Energy-saving: Carbon fiber heater elements have high thermal conversion efficiency with low energy loss. Safe and Reliable: Carbon fiber heater elements have good insulation performance, eliminating the risk of electric leakage during use. 2. Materials and Performance of Carbon Fiber Heater Elements 2. 1 Materials Carbon Fiber: The core heating material with excellent conductivity and heating performance. Insulating Material: Wraps around the carbon fiber filaments to prevent current leakage and ensure safety. Metal Electrodes: Connects to the power supply and transmits electrical energy to the carbon fiber filaments. 2. 2 Performance High Conductivity: Carbon fiber has excellent conductivity, greatly enhancing heating efficiency. High Strength: Carbon fiber is highly durable and not prone to breakage, ensuring a long service life. High Temperature Resistance: Carbon fiber can withstand temperatures above 2000℃, maintaining thermal stability. Corrosion Resistance: Carbon fiber has good corrosion resistance, suitable for harsh environments like acidic or alkaline conditions. 3. Structural Design... --- ### Manufacturing Steps of Carbon Fiber Infrared Heating Element - Published: 2024-06-06 - Modified: 2024-06-28 - URL: https://globalquartztube.com/manufacturing-steps-of-carbon-fiber-infrared-heating-element/ - 分类目录: Uncategorized Introduction Carbon fiber infrared heating elements are high-tech heating devices that combine carbon fiber infrared technology with quartz electric heating elements. These heating tubes can be used for various heating applications such as plastic molding, mold heating, wood drying, glue curing, and more. Manufacturing Steps 1. Carbon Fiber Pre-treatment Cut the carbon fiber into suitable lengths and then use high-temperature baking to eliminate all potential defects. 2. Arranging the Quartz Tube Cut the quartz tube to the required length, then wrap the carbon fiber around the outside of the quartz tube. It is best to fix the carbon fiber onto the quartz tube after wrapping. 3. Circuit Board Design Design the circuit board to the required shape and size. The circuit board needs to be designed to fit the shape and size of the carbon fiber infrared heating element. 4. Correction and Inspection Check the correction of the carbon fiber infrared heating element to ensure there is no damage or deformation. Any detected issues should be prioritized and resolved before proceeding further. 5. Infrared Processing and Laser Treatment Connect the carbon fiber infrared heating element to the laser processing equipment. Use laser cutting to create the required patterns on its surface to enhance its heating performance. 6. Heat Treatment Perform heat treatment on the carbon fiber infrared heating element in an oven to ensure it can withstand the required temperature range. Conclusion By following these steps, a complete carbon fiber infrared heating element is manufactured. This type of heating tube... --- ### Structure of Quartz Heater Elements - Published: 2024-06-05 - Modified: 2024-06-27 - URL: https://globalquartztube.com/structure-of-quartz-heater-elements/ - 分类目录: Uncategorized Introduction Quartz heater elements are common electric heating devices, primarily composed of quartz tubes, heating wires, and insulation materials. The quartz tube is a crucial component, known for its excellent thermal conductivity, high-temperature resistance, and corrosion resistance. It can withstand rapid heating and cooling processes at high temperatures and has good heat transfer efficiency. Inside the quartz tube, heating wires are typically installed, which generate heat when electrified, thereby heating the quartz tube and transferring the heat to the object being heated. Main Components 1. Quartz Tube The quartz tube is the main component of the quartz heater element, usually with a circular or square cross-section and a certain length and diameter. The edges of the quartz tube are typically sealed to prevent the internal heating wire from being affected by the external environment. The manufacturing process of the quartz tube must adhere to certain quality standards to ensure its lifespan and heating effectiveness. 2. Heating Wire The heating wire is the core component of the quartz heater element, usually made of carbon fiber, tungsten wire, graphene sheets, nickel-chromium alloy, or iron-chromium alloy. When electrified, the heating wire generates heat, which in turn heats the quartz tube. The heating wire needs to be evenly distributed inside the quartz tube to ensure uniform and stable heating performance. 3. Insulation Materials Insulation materials are mainly used to protect the quartz tube and heating wire, preventing damage from the external environment. Common insulation materials include ceramics and silicone, known for their excellent high-temperature... --- ### Fused Quartz Optical Components - Published: 2024-06-04 - Modified: 2024-06-03 - URL: https://globalquartztube.com/fused-quartz-optical-components/ - 分类目录: Uncategorized Fused quartz optical components are important optical materials widely used in optical systems. They possess excellent optical performance and chemical stability, making them widely applicable in lasers, fiber optic communications, and optical imaging. This article will introduce the definition, characteristics, preparation process, and applications of fused quartz optical components. I. Definition Fused quartz refers to quartz glass formed by melting high-purity silica at high temperatures and then cooling it to solidify. Compared to ordinary quartz glass, fused quartz has higher purity and lower residual gas content, with more stable refractive index and dispersion properties. Therefore, fused quartz is often used as a material for optical components to achieve higher optical performance. II. Characteristics High Transmittance: Fused quartz has high transmittance, allowing light transmission in the visible and infrared wavelength ranges. Low Thermal Expansion Coefficient: Fused quartz has a low thermal expansion coefficient, maintaining good stability under temperature changes. High Heat Resistance: Fused quartz can maintain good physical and chemical properties in high-temperature environments. Low Water Absorption: Fused quartz has low water absorption, maintaining good stability in humid environments. Chemical Stability: Fused quartz has good chemical stability, resisting acid and alkali corrosion. III. Preparation Process The preparation of fused quartz mainly includes the melting of quartz sand, preparation of the blank, and manufacturing of optical components. First, high-purity quartz sand is heated to high temperatures to melt into a liquid. Then, the molten quartz is poured into molds, cooled, and solidified into blanks. Finally, through precise processing techniques, the blanks are... --- ### Quartz Heater Tube Repair Methods - Published: 2024-06-03 - Modified: 2024-06-27 - URL: https://globalquartztube.com/quartz-heater-tube-repair-methods/ - 分类目录: Uncategorized 1. Introduction 1. 1 Overview Quartz heater tubes, as a common heating device, are widely used in various fields. However, during use, quartz heater tubes may malfunction due to various reasons, leading to their inability to function properly. To address these issues, this article will introduce repair methods for quartz heater tubes. The types of quartz heater tube malfunctions include, but are not limited to, the following: the heater tube fails to heat, heats unevenly, or breaks. We will introduce corresponding repair methods for these issues in the following sections to help readers resolve quartz heater tube malfunctions. In the main body of this article, we will detail the specific conditions of each malfunction and the corresponding repair methods. For heater tube failures to heat, we will introduce possible causes and solutions; for uneven heating, we will provide corresponding adjustment methods; and for broken heater tubes, we will explain how to replace the quartz tube and note relevant safety precautions. In summary, by reading this article, readers will understand common quartz heater tube malfunctions and corresponding repair methods, mastering solutions to problems encountered in practical operations. Additionally, in the conclusion, we will summarize the repair methods introduced and offer suggestions to help readers better maintain and extend the lifespan of quartz heater tubes. We hope that through this article, readers can better understand and master quartz heater tube repair methods, bringing convenience to their work and life. 1. 2 Article Structure This article will detail quartz heater tube repair methods... --- ### Quartz Heater Tube Temperature - Published: 2024-05-31 - Modified: 2024-06-27 - URL: https://globalquartztube.com/quartz-heater-tube-temperature/ - 分类目录: Uncategorized 1. Introduction 1. 1 What is a Quartz Heater Tube A quartz heater tube is a heating element that uses quartz as the protective tube material. It typically consists of an internal heating wire and an outer layer, where the internal heating wire provides heating power, and the outer layer offers protection. 1. 2 Working Principle of Quartz Heater Tube When current flows through the internal heating wire of the quartz heater tube, the heating wire generates heat, which is then transferred to the quartz outer layer. Quartz material has good thermal conductivity, enabling efficient heat transfer. Additionally, the quartz outer layer protects the heating wire from external environmental impacts, ensuring a stable operating temperature for the heating tube. 2. Factors Affecting the Temperature of Quartz Heater Tubes The temperature of quartz heater tubes is influenced by multiple factors. Below are discussions on several important factors. 2. 1 Input Power Input power refers to the heating power calculated by the current and voltage passing through the heating wire. As the input power increases, the heat generated by the heating wire also increases, thus raising the temperature of the quartz heater tube. 2. 2 Material and Thickness of Quartz Heater Tubes The material and thickness of quartz heater tubes significantly affect their temperature. Different materials have different thermal conductivities. Quartz has a high thermal conductivity, allowing it to transfer heat quickly and increase the temperature. Moreover, the thickness of the quartz heater tube also affects the temperature. Generally, the greater the... --- ### Research on Processing and Annealing Techniques of Quartz Glass - Published: 2024-05-30 - Modified: 2024-06-27 - URL: https://globalquartztube.com/research-on-processing-and-annealing-techniques-of-quartz-glass/ - 分类目录: Uncategorized 1. Introduction This research on the processing and annealing techniques of quartz glass is aimed at fiber optic production and related projects. It seeks to improve the stability of quartz products at high and normal temperatures through practice, ensuring smooth application of products in various scenarios. 2. Processing of Quartz Glass Products 2. 1 Types of Quartz Glass Materials Quartz glass is classified by processing methods, uses, and appearance, such as fused transparent quartz glass, fused quartz glass, gas-refined transparent quartz glass, synthetic quartz glass, opaque quartz glass, optical quartz glass, quartz glass for semiconductors, and quartz glass for electric light sources. These are divided into two main categories: transparent and opaque. Based on purity, it is divided into three categories: high purity, ordinary, and doped. The devitrification of high-temperature-resistant quartz glass is an inherent defect. Quartz glass has higher internal energy than crystalline quartz, making it a thermodynamically unstable metastable state. SiO2 molecules accelerate vibration and form crystals after long-term rearrangement and orientation. Crystallization mainly occurs on the surface, followed by internal defects, as these areas are prone to contamination, leading to localized accumulation of impurity ions. Particularly, alkali ions (such as K, Na, Li, Ca, Mg) reduce viscosity when entering the network, accelerating devitrification. This paper discusses processed quartz components, covering only transparent synthetic capacitor quartz glass. 2. 2 Processing of Quartz Glass Materials When processing quartz glass, a hydrogen-oxygen flame is typically used, with a processing temperature of about 1500-1600°C. 3. Stress in Quartz Glass Products 3.... --- ### Vacuum Sealed Quartz Tube Operation Instructions - Published: 2024-05-29 - Modified: 2024-06-27 - URL: https://globalquartztube.com/vacuum-sealed-quartz-tube-operation-instructions/ - 分类目录: Uncategorized Preliminary Checks Before starting the sealing process, carefully inspect the equipment for faults. Ensure all sealing valves are closed, and check the acetylene and oxygen levels. If refilling is needed, verify if the high-pressure Ar (argon) is depleted. If both the equipment and gas cylinders are in good condition, proceed with the following steps: Operation Steps 1. Sample Installation Select the appropriate quartz tube, sleeve, and sealing ring. 2. Low Vacuum Extraction Turn on the main power switch (G1) and the mechanical pump switch (G2). Slowly open valve V4. Once the low vacuum gauge (right-side dial) shows a reading of less than 5 Pa, close V4. 3. High Vacuum Extraction Slowly open valve V1. Once the low vacuum gauge reading stabilizes, turn on the molecular pump switch (G3). When the reading stabilizes, open valve V2. You can also turn on the high vacuum gauge (left-side dial) to monitor the vacuum level. When the vacuum level reaches the sealing requirement (generally below 10^-5 Pa), begin the sealing process. 4. Gas Filling Close valves V2 and V1, open the Ar gas cylinder, and adjust valve V3 to fill the gas. When the gas flow meets the requirements, close V3 and the cylinder. 5. Ignition Open the acetylene and oxygen cylinders. Before ignition, purge any residual air from the pipes. Slightly open the acetylene switch (red knob) on the nozzle and ignite. 6. Flame Adjustment Alternate the adjustments of the acetylene and oxygen switches (blue knob) to achieve the desired flame. 7. Sealing... --- ### Analysis of the Semiconductor Quartz Tube Market - Published: 2024-05-28 - Modified: 2024-06-27 - URL: https://globalquartztube.com/analysis-of-the-semiconductor-quartz-tube-market/ - 分类目录: Uncategorized Introduction Semiconductor quartz tubes are key components widely used in the semiconductor industry, known for their conductivity and thermal stability. With the rapid development of the semiconductor industry, the market for semiconductor quartz tubes has also shown a trend of continuous growth. This article provides a detailed analysis of the market size of semiconductor quartz tubes to understand the market situation and future development prospects. Market Size The market size of semiconductor quartz tubes can be evaluated from different dimensions, including market value, production volume, and sales volume. Market Value According to market research data, the semiconductor quartz tube market has maintained a steady growth trend over the past few years. It is expected that the market value will further increase in the coming years. This growth is mainly influenced by the following factors: Rapid Development of the Semiconductor Industry With technological advancements and digital transformation, the semiconductor industry has been widely applied globally. As a critical component in the semiconductor manufacturing process, the demand for semiconductor quartz tubes is directly related to the demand in the semiconductor market. Therefore, the development of the semiconductor industry will drive the growth of the semiconductor quartz tube market. Popularity of Electronic Consumer Products The proliferation of smartphones, tablets, TVs, and other electronic consumer products has also positively influenced the growth of the semiconductor quartz tube market. The chips and semiconductor devices used in these consumer products require semiconductor quartz tubes to ensure their performance and stability. Thus, the popularity of electronic consumer... --- ### Transparent Fused Quartz Tubes Market Analysis Report - Published: 2024-05-27 - Modified: 2024-06-27 - URL: https://globalquartztube.com/transparent-fused-quartz-tubes-market-analysis-report/ - 分类目录: Uncategorized 1. Introduction 1. 1 Overview Transparent fused quartz tubes are high-purity, high-transparency, high-temperature-resistant, and chemically resistant materials widely used in chemical, electronics, optoelectronics, metallurgy, and other fields. With the development of the global economy and technological advancements, the demand for transparent fused quartz tubes continues to grow, and the market size is gradually expanding. This report provides an in-depth analysis of the current status, development trends, and competitive landscape of the transparent fused quartz tubes market, offering valuable market reference information for relevant enterprises and investors. 1. 2 Article Structure This report is divided into three main sections: the current status of the transparent fused quartz tubes market, future development trends, and the competitive landscape. The first section provides a detailed analysis of the overall market situation, including data on market size, market share, and growth rates. The second section explores future development trends in the transparent fused quartz tubes market, focusing on factors such as technological innovation, market demand, and regulatory policies. The final section analyzes the competitive landscape, covering the market share of major enterprises, product characteristics, and market positioning. Through these analyses, the report aims to provide a comprehensive understanding of the transparent fused quartz tubes market. 1. 3 Purpose The purpose of this report is to conduct a comprehensive and in-depth analysis of the transparent fused quartz tubes market to understand the current market status and development trends, analyze the competitive landscape, and forecast future market prospects. It aims to provide industry practitioners with market references... --- ### Photovoltaic Graphite Boat Quartz Tube - Published: 2024-05-24 - Modified: 2024-06-27 - URL: https://globalquartztube.com/photovoltaic-graphite-boat-quartz-tube/ - 分类目录: Uncategorized Introduction Photovoltaic graphite boat quartz tube is a crucial component used in solar photovoltaic power generation. It is a tubular structure made of quartz material, internally coated with a graphite layer. This tube is primarily used in the manufacturing process of solar photovoltaic cells, specifically for the growth of polycrystalline silicon using the graphite thermal decomposition method. Manufacturing Process In the production of solar photovoltaic cells, the photovoltaic graphite boat quartz tube carries the raw materials of polycrystalline silicon. Using the graphite thermal decomposition method, the raw materials are heated to high temperatures, causing them to decompose into silicon smoke and silicon vapor. These then condense inside the graphite boat quartz tube to form polycrystalline silicon. This method can produce high-quality polycrystalline silicon, which is used to manufacture solar cell sheets. Features and Benefits Photovoltaic graphite boat quartz tubes possess excellent high-temperature resistance and chemical stability, allowing them to withstand the rigorous conditions of the high-temperature melting process. Additionally, the graphite coating enhances the thermal conductivity of the graphite boat, promoting uniform distribution of silicon smoke and silicon vapor, which aids in the growth of high-quality polycrystalline silicon. Applications and Importance Photovoltaic graphite boat quartz tubes hold significant application value in the solar photovoltaic industry. They can improve the conversion efficiency and quality of solar cells, thereby advancing the development of solar photovoltaic power generation technology. With the continuous growth of the solar industry, the technology of photovoltaic graphite boat quartz tubes is also constantly being improved and innovated to... --- ### Quartz Tube Forming Process - Published: 2024-05-23 - Modified: 2024-06-27 - URL: https://globalquartztube.com/quartz-tube-forming-process/ - 分类目录: Uncategorized The quartz tube forming process is a common method used to manufacture quartz tubes of various shapes and sizes. Quartz tubes have widespread applications in many fields, such as optics, electronics, and chemical engineering. This article will provide a detailed introduction to the process and applications of quartz tube forming. I. Basic Principles of Quartz Tube Forming Process The quartz tube forming process primarily involves two steps: quartz tube preform and forming processing. First, quartz sand is heated and melted, then the molten quartz is injected into a metal mold for cooling and solidification to form the preliminary shape of the quartz tube. Next, through grinding, polishing, and heating, the quartz tube is processed to achieve the required dimensions and surface quality. The key to quartz tube forming is controlling the melting and cooling process of the quartz sand. The melting temperature of quartz sand typically exceeds 2000 degrees Celsius, requiring a high-temperature furnace for heating. During the melting process, it is crucial to control the melting time and temperature to ensure the quality and shape of the quartz tube. II. Application Fields of Quartz Tube Forming Process The quartz tube forming process has widespread applications in the optical field. Quartz tubes can be made into various shapes of optical devices, such as lenses, prisms, and windows. Due to the high transparency of quartz, it is used to manufacture high-quality optical devices with excellent optical performance. Quartz tubes can also be used in the electronics field. They can be made... --- ### Internal Structure of Quartz Tube Heating Elements - Published: 2024-05-22 - Modified: 2024-06-27 - URL: https://globalquartztube.com/internal-structure-of-quartz-tube-heating-elements/ - 分类目录: Uncategorized 1. Introduction 1. 1 Overview Quartz tube heating elements are common heating components widely used in industrial, medical, and electronic fields. They are made using quartz tubes as the base material and through a special manufacturing process, providing high heating efficiency, stability, and high-temperature resistance. The internal structure of quartz tube heating elements is crucial for their proper functioning. The main internal components include the quartz tube, heating wire, and insulation layer. The quartz tube, made of quartz material, serves as the outer shell with excellent high-temperature and thermal insulation properties, effectively protecting the heating wire and insulation layer. The heating wire, usually made of nickel-chromium alloy, is the core part of the heating element, providing good electrical conductivity and heating performance. The insulation layer, composed of insulating materials, isolates the heating wire from the quartz tube, preventing short circuits and electric leakage. In the internal structure, the heating wire plays the role of generating heat. When electrified, the current through the heating wire generates resistance heat, converting electrical energy into radiant heat, which is then transferred to the exterior of the quartz tube. The quartz tube, as the outer shell and insulation layer, effectively prevents heat loss, directing the heat more efficiently to the intended target. The insulation layer ensures the safe operation of the heating wire, preventing accidental incidents. Overall, the internal structure of quartz tube heating elements is a key factor in their efficient, stable, and safe operation. Each component works together to ensure the heating element... --- ### U-Shaped Quartz Tube Reactor - Published: 2024-05-21 - Modified: 2024-06-27 - URL: https://globalquartztube.com/u-shaped-quartz-tube-reactor/ - 分类目录: Uncategorized Overview A U-shaped quartz tube reactor is a common laboratory instrument used for conducting chemical or biological reactions. It consists of two U-shaped quartz tubes forming an inverted U-shaped structure. The design of the U-shaped quartz tube reactor provides a large reaction surface area and good mass transfer performance, enhancing reaction efficiency and rate. Advantages of Quartz Material The primary advantage of the U-shaped quartz tube reactor lies in its quartz material, which possesses excellent corrosion resistance and can withstand the erosion of most chemicals. Additionally, quartz has high thermal conductivity, allowing for rapid and uniform heat transfer. This makes the U-shaped quartz tube reactor suitable for reactions under high temperature, high pressure, and corrosive environments, applicable to various chemical and biological reactions. Applications in the Laboratory U-shaped quartz tube reactors are widely used in chemical laboratories for catalytic reactions, organic synthesis, gas-phase reactions, and more. They can be used for the absorption, dissolution, and precipitation of gases, as well as for liquid-phase and solid-phase reactions. Due to their good mass transfer performance, U-shaped quartz tube reactors achieve high catalytic efficiency in catalytic reactions, effectively improving the yield and selectivity of reaction products. Design and Usage Considerations Reactor Size and Shape The design and usage of U-shaped quartz tube reactors require consideration of multiple factors. First, the size and shape of the reactor should be chosen based on the characteristics of the reactants and the reaction conditions. A larger reactor size provides a larger reaction surface area and faster reaction... --- ### Quartz Tube Welding Methods - Published: 2024-05-20 - Modified: 2024-06-27 - URL: https://globalquartztube.com/quartz-tube-welding-methods/ - 分类目录: Uncategorized Quartz tubes are extensively utilized in various fields such as optics, semiconductors, electronics, and chemicals, including applications like LED manufacturing, solar cell production, and high-temperature reactors. The primary method of connecting quartz tubes is through welding. Quartz is a brittle material with isotropic physical properties and stable chemical characteristics, but it is susceptible to explosive impacts and bending fractures. Special techniques are required when welding quartz tubes to ensure the stability and durability of the joints. Preparation for Quartz Tube Welding: 1. Surface Treatment of Quartz Tubes Begin by thoroughly cleaning the surface of the quartz tubes to remove any adherents and dirt. This can be done using a concentrated solution of HCl or HNO3 in deionized water. The cleaning should not exceed 10-30 minutes. After cleaning, rinse the tubes with clean water and dry using nitrogen gas or air-dry naturally. 2. Cutting and Smoothing the Ends of Quartz Tubes Cut the quartz tubes to the required length and shape, and use a grinding machine or other tools to process the ends, ensuring they are smooth, flat, and dust-free. Welding Methods for Quartz Tubes: 1. Flame Fusion Welding This is the most common method of welding quartz tubes. It involves melting the ends of the tubes and joining them together. Flame fusion welding requires various tools, including a torch, nozzle, welding flux, and welding tools. Before welding, operators should receive proper training to ensure proficient use of the tools and techniques. Steps for Flame Welding: Setup: Secure the quartz tubes... --- ### Uses of Quartz Rods in Laboratories - Published: 2024-05-17 - Modified: 2024-06-27 - URL: https://globalquartztube.com/uses-of-quartz-rods-in-laboratories/ - 分类目录: Uncategorized Quartz rods are a commonly used laboratory tool with a wide range of applications across various scientific fields. Below are the primary uses of quartz rods: 1. Stirring: Quartz rods are often used to mix liquids or solutions, effectively achieving a uniform mixture of substances. 2. Assisting Magnetic Stirrers: Quartz rods can be used to aid magnetic stirrers. When a magnetic stirrer rotates on a magnetic stirrer machine, a quartz rod can help stir the liquid more evenly. 3. Transferring Liquids: Quartz rods can also be used to transfer liquids, such as pouring a liquid from one container to another. 4. Heat Exchange: In the laboratory, quartz rods can be used for heat exchange. By placing a quartz rod in hot or cold water and then into the liquid to be tested, the temperature of the liquid can be quickly altered. 5. Measurement: Quartz rods can also be used to measure the depth or volume of liquids. By immersing a quartz rod in a liquid and then reading the liquid level or using a scale to measure the volume of liquid on the rod. In summary, quartz rods are a highly practical laboratory tool that play an important role in many experiments and applications. In conclusion, Global Quartz Tube specializes in providing high-quality quartz products for a variety of industrial applications. For more details or to inquire about our products, please visit our website or contact us at contact@globalquartztube. com. --- ### Allowable Pressure of Quartz Tubes - Published: 2024-05-16 - Modified: 2024-06-26 - URL: https://globalquartztube.com/allowable-pressure-of-quartz-tubes/ - 分类目录: Uncategorized The allowable pressure of quartz tubes depends on their manufacturing process and specifications. Generally, quartz tubes can withstand pressure in the order of several tens of megapascals. A quartz tube with a standard wall thickness of 1 millimeter can handle a pressure of 30 megapascals, while a tube with a wall thickness of 2 millimeters can withstand higher pressures. To convert 49. 3 MPa (the pressure tolerance of quartz tubes) into kilograms per square centimeter, the following calculation can be used: 1 MPa = 10. 1972 kgf/cm², therefore, 49. 3 MPa = 49. 3 × 10. 1972 kgf/cm² ≈ 502. 13 kgf/cm², which is approximately 502. 13 kilograms-force per square centimeter. Thus, a quartz tube with an external diameter of 55 mm and a thickness of 5 mm can withstand a pressure of about 502. 13 kilograms-force per square centimeter. For quality quartz tubes tailored to meet specific pressure requirements, consider Global Quartz Tube, where we offer customizable solutions. For more information on our products and services, please visit our website or email us at contact@globalquartztube. com. --- ### Quartz Tube Absorption Wavelengths - Published: 2024-05-15 - Modified: 2024-06-26 - URL: https://globalquartztube.com/quartz-tube-absorption-wavelengths/ - 分类目录: Uncategorized Quartz tubes can absorb light within the wavelength range of 200 to 2000 nanometers. Specifically, quartz tubes have a higher degree of absorption in the ultraviolet wavelength range (200-400 nanometers), and a lower degree of absorption at other wavelengths. Therefore, quartz tubes are commonly used for detecting ultraviolet or visible light and can serve as transmission channels and reflectors in optical instruments. For more information about our customizable and competitively priced quartz tubes, please visit our website or contact us at contact@globalquartztube. com. --- ### Transmission Rate of Quartz Tubes - Published: 2024-05-14 - Modified: 2024-06-26 - URL: https://globalquartztube.com/transmission-rate-of-quartz-tubes/ - 分类目录: Uncategorized Quartz tubes are a type of transparent glass tube widely used in the fields of optics and optoelectronics. They allow a high proportion of light to pass through in the visible and ultraviolet spectra. The transmission rate of quartz tubes depends on the wavelength of light, hence, at different wavelength ranges, their transmission rates vary. Ultraviolet Wavelength Transmission For ultraviolet wavelengths, quartz tubes are the preferred material due to their transmission rate. At a wavelength of 185 nm, the transmission rate of quartz tubes approaches 100%. This excellent transmission rate makes quartz tubes extensively used in devices such as ultraviolet sterilizers, photometers, and spectrophotometers. Visible Light Spectrum Transmission In the visible light spectrum, quartz tubes also demonstrate good transmission rates. Near a wavelength of 550 nm, the transmission rate of quartz tubes can exceed 95%. This characteristic makes quartz tubes widely used in the lenses or filters of optical instruments. Overall, the transmission rate of quartz tubes changes with wavelength, but within the visible and ultraviolet spectrum ranges, it consistently exhibits good characteristics. Therefore, quartz tubes are broadly utilized in various optoelectronic and optical fields, such as optical spectroscopy, molecular spectroscopy, and biochemical analysis. Additional Qualities of Quartz Tubes As a high-quality material, quartz tubes possess several other properties. For instance, they have high chemical resistance, high-temperature resistance, and a low thermal expansion coefficient. These properties enable quartz tubes to perform exceptionally in environments with high-temperature corrosion and high pressure and temperature. In summary, the transmission rate of quartz tubes... --- ### Optimal Temperature Range for Quartz Tubes - Published: 2024-05-13 - Modified: 2024-06-26 - URL: https://globalquartztube.com/optimal-temperature-range-for-quartz-tubes/ - 分类目录: Uncategorized Quartz tubes are often used as sampling or reaction conduits in environments that require resistance to high temperatures or pressures. The reason quartz tubes can withstand such harsh conditions is due to their excellent chemical stability and high-temperature oxidation resistance. However, the properties of quartz material can vary under different temperatures, so it is crucial to be aware of the appropriate temperature range when using them. In addition to high-temperature environments, quartz tubes are also suitable for use in low-temperature settings. For such conditions, quartz tubes typically operate between -50 degrees Celsius to 100 degrees Celsius. In these low-temperature environments, quartz tubes maintain strong physical and chemical stability without experiencing issues like cold brittleness or fracturing. Overall, the temperature range for using quartz tubes is quite broad, but attention must be paid to the specific circumstances and characteristics of the materials used. Additionally, different reaction or sampling processes may require the selection of materials that are specifically suited to the temperature and pressure conditions to ensure the effectiveness and stability of the reactions and sampling. For specialized quartz tube solutions that cater to a broad range of temperature and pressure requirements, consider Global Quartz Tube, your expert in durable and high-quality quartz products. For more information or to make an inquiry, please visit our website or email us at contact@globalquartztube. com. --- ### Melting Point of Quartz Tubes - Published: 2024-05-10 - Modified: 2024-06-26 - URL: https://globalquartztube.com/melting-point-of-quartz-tubes/ - 分类目录: Uncategorized Quartz tubes are a common type of inorganic non-metallic material known for their resistance to high temperatures, corrosion, and high hardness. These properties make them widely used in electronics, optics, chemistry, and other fields. The melting point of quartz tubes is an important physical property. Let's explore this in detail. Definition and Importance The melting point of a quartz tube refers to the temperature at which it transitions from a solid state to a liquid state under standard atmospheric pressure. The melting point of quartz tubes is closely related to their crystal structure. Quartz tubes have a trigonal crystal system, and due to the stability of this structure, their melting point is relatively high. Experimental data shows that the melting point of quartz tubes is around 1710°C. This value represents the temperature at which quartz tubes transition from solid to liquid under standard atmospheric pressure. Applications in High-Temperature Environments The high melting point of quartz tubes is one of the reasons for their wide application in high-temperature environments. In such environments, the physical properties of quartz tubes do not change significantly, ensuring their stability and reliability. Moreover, the high melting point allows for better control during the manufacturing process, ensuring the quality and stability of the final products. Other Physical Properties In addition to the melting point, other physical properties of quartz tubes such as the coefficient of thermal expansion, thermal conductivity, and heat capacity also contribute to their widespread use in high-temperature environments. Quartz tubes have a low coefficient... --- ### Quartz Tube Thermal Efficiency - Published: 2024-05-09 - Modified: 2024-06-26 - URL: https://globalquartztube.com/quartz-tube-thermal-efficiency/ - 分类目录: Uncategorized Quartz tubes are a common type of industrial heat exchange equipment, capable of transferring heat from one place to another. They are primarily composed of a fusible quartz tube and a steel tube, and are widely used in various fields such as petroleum, chemical, machinery, shipbuilding, military, hydropower, gas, and metallurgy. The use of quartz tubes offers many advantages, such as high-temperature corrosion resistance, good leak-proof properties, thermodynamic performance, compact volume, and ease of control. Their thermal efficiency also attracts considerable attention. Thermal efficiency refers to the rate of energy transfer in heat exchangers. It is determined by several factors including specific heat capacity, heat exchange surface area, heat transfer coefficient, and heat transfer duration. As a novel type of heat exchanger, quartz tubes have a high thermal efficiency. In use, they not only achieve rapid heat exchange but also experience minimal losses, resulting in high thermal efficiency. To ensure the thermal efficiency of quartz tubes, it is necessary to perform standardized installation and maintenance. Generally, the core diameter of the quartz tube should be between 25 and 85 mm, the wall thickness should be maintained at more than 3 mm, and the core thickness should not be less than 1 mm, to ensure the thermal efficiency of the quartz tube. Additionally, attention should be paid to the temperature differential between the inside and outside of the core. It is best to keep the temperature difference no greater than 200°C to ensure normal wall temperatures and thus improve thermal efficiency.... --- ### Quartz Tube Pickling Process - Published: 2024-05-08 - Modified: 2024-06-26 - URL: https://globalquartztube.com/quartz-tube-pickling-process/ - 分类目录: Uncategorized The quartz tube pickling process is a common surface treatment method primarily used to remove oxides and impurities from the surface of quartz tubes, enhancing their surface smoothness and corrosion resistance. Below are the general steps of the quartz tube pickling process: 1. Preparation: Check the quality of the quartz tubes to ensure their surfaces are free of cracks, pores, and other defects. Then, place the quartz tubes into the pickling tank. 2. Pickling: Pour the pickling solution into the tank, ensuring the quartz tubes are completely submerged in the acid. Common pickling solutions include hydrofluoric acid and sulfuric acid. Select the appropriate pickling solution and treatment time based on the requirements. 3. Washing: After pickling, remove the quartz tubes and rinse them thoroughly with clean water. Be careful not to damage the surface of the quartz tubes during washing. 4. Inspection: After washing, check whether the surface of the quartz tubes is smooth and free from oxides and impurities. If the treatment results are unsatisfactory, a second pickling or additional treatment may be necessary. 5. Drying: Place the cleaned quartz tubes on a drying rack to air dry, or wipe them clean with a clean cloth before proceeding to the next steps. It is important to note that the pickling process requires strict control of various parameters such as the concentration of the pickling solution, temperature, and treatment time to ensure effective treatment and maintain the quality of the quartz tubes. Additionally, operators should wear protective gear such as... --- ### Methods of Dehydroxylation for Quartz Tubes - Published: 2024-05-07 - Modified: 2024-06-26 - URL: https://globalquartztube.com/methods-of-dehydroxylation-for-quartz-tubes/ - 分类目录: Uncategorized Quartz tubes are materials widely used in scientific research and industrial production. They are characterized by high purity and excellent physical and chemical properties, making them extensively applicable in fields such as optoelectronics, electronics, chemistry, and biology. Dehydroxylation is a process that removes hydroxyl groups from the surface of quartz tubes, enhancing their surface purity and optical performance. Hydroxyl Groups on Quartz Tubes The presence of hydroxyl groups on the surface of quartz tubes results from reactions with water molecules during the manufacturing process. These hydroxyl groups can affect the properties and applications of the quartz tubes. Therefore, to improve the performance of quartz tubes, it is necessary to remove these surface hydroxyl groups. There are various methods of dehydroxylation, with thermal treatment and chemical treatment being the most common. Thermal Treatment for Dehydroxylation Thermal treatment is a prevalent method of dehydroxylation. Under high temperatures, quartz tubes undergo thermal decomposition, where hydroxyl groups are broken down and released as water molecules, detaching from the surface of the tube. The advantage of this method is its simplicity and effectiveness, but it requires high temperatures and extended time to completely remove the hydroxyl groups. Additionally, thermal treatment may cause changes in the dimensions and crystal structure of the quartz tubes, affecting their performance. Chemical Treatment for Dehydroxylation Chemical treatment is another common method of dehydroxylation. Typical chemical agents include acids, bases, and hydrofluoric acid. These chemicals react with the hydroxyl groups on the surface of the quartz tubes, effectively removing them. The... --- ### Hydroxyl Groups in Quartz Tubes - Published: 2024-05-06 - Modified: 2024-06-26 - URL: https://globalquartztube.com/hydroxyl-groups-in-quartz-tubes/ - 分类目录: Uncategorized   Hydroxyl in Quartz Glass Hydroxyl dissolved in quartz glass is known as hydroxyl. Hydroxyl is the main impurity in quartz glass, and the primary factors affecting its content are raw materials, processes, and manufacturing methods. As the hydroxyl content in quartz glass varies, so does the glass's performance. Increasing hydroxyl content leads to a decrease in viscosity, density, and refractive index, and an increase in infrared absorption and expansion coefficient. Dehydroxylation Based on the behavior of hydroxyl in quartz glass, it can be divided into two categories: quartz glass produced in an oxidizing atmosphere and quartz glass melted in a reducing atmosphere. The hydroxyl in the former is difficult to remove by heating, while it is easier to remove in the latter. Quartz glass produced in an oxidizing atmosphere includes: Synthetic Quartz Glass: Silicon tetrachloride is thermally decomposed in a hydro-oxygen flame, with hydroxyl content around 1000-2000 ppm. Gas-Refined Quartz Glass: Quartz powder melted in a hydro-oxygen flame, with hydroxyl content of 100-200 ppm. Plasma Quartz Glass: Quartz powder melted in a plasma flame, with hydroxyl content of 20-30 ppm. Fused Quartz: Quartz powder melted in an air atmosphere, with hydroxyl content of 300-500 ppm. This type of quartz glass's hydroxyl is difficult to remove by heat treatment and only visibly dehydroxylates above the crystallization temperature at around 1350 degrees Celsius. Quartz Glass Melted in a Reducing Atmosphere: In a hydrogen atmosphere, the hydroxyl content is 100-200 ppm; heating above 900 degrees Celsius can remove most of the hydroxyl.... --- ### Inflatable Vacuum-Sealed Quartz Tube System Operating Instructions - Published: 2024-05-03 - Modified: 2024-06-26 - URL: https://globalquartztube.com/inflatable-vacuum-sealed-quartz-tube-system-operating-instructions/ - 分类目录: Uncategorized Preparation: Before starting the sealing process, carefully check the instrument for any malfunctions. Ensure all seal valves are closed, and check if the acetylene and oxygen tanks are empty. If inflation is required, also check if the high-purity argon (Ar) is depleted. If there are no issues with the equipment and gas cylinders, proceed with the following operations: 1. Sample Loading: Choose the appropriate quartz tube, socket, and sealing ring. 2. Low Vacuum: Turn on the main power switch G1 and the mechanical pump switch G2. Slowly open valve V4. Once the low vacuum gauge (right dial) shows less than 5Pa, close V4. 3. High Vacuum: Slowly open valve V1. Once the low vacuum gauge stabilizes, turn on the turbomolecular pump switch G3. After stabilization, open valve V2. You can also start the high vacuum gauge (left dial) to monitor the vacuum level. Begin sealing once the vacuum reaches the requirement (generally lower than 10-5Pa). 4. Inflation: Close valves V2 and V1, open the Ar gas cylinder, and adjust valve V3 to inflate. Close V3 and the gas cylinder once the required gas flow is achieved. 5. Ignition: Open the acetylene and oxygen cylinders. Before igniting, ensure to purge the air hose of any residual air. Slightly open the acetylene nozzle (red knob) for ignition. 6. Adjusting the Flame: Alternately adjust the acetylene and oxygen knobs (blue knobs) to achieve the desired flame. 7. Sealing: Once the flame is adjusted, proceed with the necessary tube sealing operations. 8. Concluding Sealing:... --- ### Applications of Quartz Glass in Diverse Industries - Published: 2024-05-02 - Modified: 2024-06-03 - URL: https://globalquartztube.com/applications-of-quartz-glass-in-diverse-industries/ - 分类目录: Uncategorized Quartz Glass for Discharge Tubes Transparent quartz glass is extensively used in various light sources such as mercury lamps, ultra-high pressure mercury lamps, xenon lamps, ultraviolet lamps, iodine tungsten lamps, halogen lamps, gas laser lamps, and metal halide lamps due to its excellent optical transmittance from the ultraviolet to the infrared range and its heat resistance. It is the largest user of quartz glass in China and the second largest user internationally (the largest being the semiconductor technology sector). Quartz Glass in the Semiconductor (Electronics) Industry Transparent quartz glass, which is extremely pure SiO2 containing almost no impurities, is indispensable in the semiconductor industry. It is used in silicon crucibles and tubes, potassium alloy crucibles, and other high-purity metal manufacturing devices. Key products include large quartz glass bell jars (used as covers for manufacturing polycrystalline silicon furnaces), which previously employed opaque steel affecting product quality and required water cooling. The switch to quartz glass bell jars eliminates the need for water cooling, saves energy, and enhances the quality of polycrystalline silicon. Quartz glass crucibles are essential for producing monocrystalline silicon from polycrystalline silicon and are irreplaceable. In the manufacturing of integrated circuits and transistors using silicon monocrystals, processes such as epitaxy, diffusion, and sintering are carried out in quartz glass diffusion tubes or bell jars. Additionally, quartz glass supports are used for cleaning silicon wafers, making various specifications of quartz glass tubes, rods, crucibles, and laboratory glassware essential in the semiconductor industry. Quartz Glass for Infrared Heaters Opaque quartz glass... --- ### Quartz Tube Raw Mineral Quality Standards and Key Indicator Analysis - Published: 2024-05-01 - Modified: 2024-06-26 - URL: https://globalquartztube.com/quartz-tube-raw-mineral-quality-standards-and-key-indicator-analysis/ - 分类目录: Uncategorized Quartz Tube Raw Mineral Quality Standards The quality standards for raw minerals used in quartz tube drawing include the following aspects: Chemical Composition: The SiO2 content must be higher than 99. 5%. Physical Properties: The hardness of the quartz tube raw mineral should be above level 7, with a density between 2. 6-2. 7g/cm³. Color: The raw mineral is primarily white or off-white, without any black spots, cracks, or other apparent defects. Processability: The quartz tube raw mineral should have minimal impurities and moisture content, making it easy to process into products with regular dimensions. Compression Strength: Under certain temperature and humidity conditions, the raw mineral should be able to withstand a certain amount of pressure without deforming or cracking. These are the basic quality standards for the quartz tube raw mineral, which may need to be adjusted according to different demands and applications. Analysis of Key Indicators for Quartz Tube Drawing Hardness Hardness is one of the important indicators of quality for quartz tubes. A high hardness level means it is less prone to wear, scratches, and can maintain its luster over a long period. According to mineral hardness ratings, the hardness index of quartz tubes is 7. Compressive Strength Compressive strength refers to the amount of pressure a material can withstand from external forces without breaking or deforming. Quartz tubes have a high compressive strength, generally over 100 MPa, allowing them to withstand significant pressure. Water Absorption Rate The water absorption rate is also an important indicator. A... --- ### Understanding the Refractive Index of Quartz Tubes - Published: 2024-04-30 - Modified: 2024-06-26 - URL: https://globalquartztube.com/understanding-the-refractive-index-of-quartz-tubes/ - 分类目录: Uncategorized Quartz tubes are a common type of optical instrument extensively used in scientific, industrial, and medical fields. The refractive index is a crucial parameter that significantly influences the performance and effectiveness of quartz tubes. This article will detail the refractive index of quartz tubes and its related concepts. Quartz tubes are cylindrical objects made from quartz material, noted for its excellent optical properties. Quartz, being a colorless and transparent mineral, has a high refractive index and optical transmission capabilities, making it widely used in the optical field. Quartz tubes are characterized by their high strength, corrosion resistance, and high-temperature tolerance, finding extensive use in chemical laboratories, medical devices, and laser equipment. 1. What is Refractive Index of Quartz Tubes The refractive index of a quartz tube is defined as the ratio of the angle of refraction to the angle of incidence as light passes through the quartz tube. It is an essential optical property that affects the propagation speed and direction of light within the medium. Typically, the refractive index of quartz tubes ranges from 1. 45 to 1. 55, depending on the optical properties of the quartz material and the structure of the tube walls. The refractive index plays a crucial role in the optical applications of quartz tubes. It determines the optical transmission performance of the tubes. During optical applications, light is refracted as it passes through a quartz tube. An inappropriate refractive index can adversely affect the transmission and focusing of light, thereby impacting the performance of... --- ### Quartz Heater Tubes: Principles and Construction - Published: 2024-04-29 - Modified: 2024-06-26 - URL: https://globalquartztube.com/quartz-heating-tubes-principles-and-construction/ - 分类目录: Uncategorized Quartz heating tubes are widely recognized heating elements in both industrial and scientific settings. Let’s explore the principles and design that underpin their functionality. Heating Principle The fundamental heating mechanism of quartz heating tubes involves resistance heating. By passing an electric current through the tube, heat is generated within, which then gets transferred to the tube walls. This heat is subsequently conveyed to the object requiring heating through radiation, convection, and conduction. The electrical resistance within the tube produces heat, raising the temperature of the quartz walls and effectively warming the targeted object. Construction Overview Constructed primarily from quartz glass, quartz heating tubes boast remarkable resistance to high temperatures and chemical stability. Their design comprises three key elements: the quartz tube walls, the heating wire, and an insulation layer. Quartz Tube Walls: The core of the heating tube, these walls are highly resistant to heat and excellent at transferring it, making them capable of enduring the rigors of high-temperature heating. Heating Wire: Situated inside the quartz tube, this wire is typically made from materials like nickel-chromium alloy. It achieves resistance heating by winding inside the tube. Insulation Layer: This layer wraps around the heating wire, preventing direct contact with the quartz walls while also serving an insulating and heat-retention role. Moreover, quartz heating tubes might include auxiliary components such as conductive terminals and brackets. These are critical for connecting to a power source and securely positioning the tube. Conclusion Utilizing the principle of resistance heating and capitalizing on the exceptional... --- ### The Maximum Operating Temperature of Quartz Tubes in Vacuum Applications - Published: 2024-04-26 - Modified: 2024-06-26 - URL: https://globalquartztube.com/the-maximum-operating-temperature-of-quartz-tubes-in-vacuum-applications/ - 分类目录: Uncategorized Quartz tubes are a prevalent material known for their exceptional thermal stability and high-temperature resistance. Widely used in industrial vacuum equipment, their maximum operating temperature is a focal point of interest. 1. Factors Influencing Maximum Temperature The maximum temperature at which a quartz tube can be used in a vacuum is influenced by several factors, including the material of the quartz tube, its wall thickness, the external environment temperature, and the vacuum level. 2. Material Impact on Temperature Resistance Firstly, the material of the quartz tube plays a decisive role in its high-temperature resistance. Made from high-purity silicon dioxide, quartz tubes exhibit excellent heat and corrosion resistance. Generally, the maximum operating temperature of a quartz tube can reach up to about 1200 degrees Celsius. 3. Wall Thickness Consideration The wall thickness of the quartz tube also impacts its high-temperature resistance. Thin-walled quartz tubes are prone to thermal stress fractures under high temperatures, while thicker walls can better withstand thermal stress in high-temperature environments. Therefore, the appropriate wall thickness should be selected based on the specific operating temperature and environment. 4. External Environment Temperature The external environment temperature is another factor affecting the maximum use temperature of quartz tubes. If the ambient temperature is too high, it can adversely affect the quartz tube's temperature resistance. Hence, when using quartz tubes, it's crucial to arrange cooling devices properly to ensure they operate within a suitable temperature range. 5. Influence of Vacuum Level The vacuum level is a significant factor affecting the maximum... --- ### The Production Process of Quartz Tubing - Published: 2024-04-25 - Modified: 2024-06-26 - URL: https://globalquartztube.com/the-production-process-of-quartz-tubing/ - 分类目录: Uncategorized Quartz tubing is a type of transparent or translucent tubing made from silicon dioxide (SiO2), known for its high temperature resistance, corrosion resistance, and high purity. Due to its excellent physical and chemical properties, quartz tubing finds widespread application in high-tech industries such as semiconductors, optical fibers, and photovoltaics. The manufacturing process of quartz tubing mainly includes the following steps: 1. Material Selection and Preparation The production of quartz tube requires high-purity quartz sand as a raw material. Initially, the quartz sand is sifted and cleaned to remove impurities and dust. Subsequently, the cleaned quartz sand is dried to facilitate further processing. 2. Melting The dried quartz sand is placed in a high-temperature furnace and melted at temperatures above 1700°C. During the melting process, the quartz sand transforms into a molten state of silicon dioxide. To ensure effective melting, furnaces such as electric arc furnaces, resistance furnaces, or gas flame furnaces are typically used. 3. Forming The molten silicon dioxide is shaped into tubes through special forming processes. Common methods include drawing, blowing, and centrifugal forming. The drawing method involves stretching the molten silicon dioxide into thin tubes; the blowing method involves blowing the molten silicon dioxide into molds to form tubes; and the centrifugal method involves pouring the molten silicon dioxide into rotating molds, using centrifugal force to shape it into tubes. 4. Cooling After forming, the quartz tubes need to be cooled. During the cooling process, certain stresses can develop on the inner and outer surfaces of the... --- ### Spectral Range of Quartz Glass Products - Published: 2024-04-24 - Modified: 2024-06-26 - URL: https://globalquartztube.com/spectral-range-of-quartz-glass-products/ - 分类目录: Uncategorized   Quartz glass products' light transmission range primarily refers to the spectrum of light that quartz glass can allow to pass through. The transmission range of quartz glass mainly includes ultraviolet, visible light, and infrared radiation. It is an important optical material in various harsh conditions. Based on their optical properties, they are categorized into the following three types: Based on their optical properties, they are categorized into the following three types: JGS1 Quartz Glass: This type is used within the spectral range of 760-3500nm. It is transparent in the ultraviolet and visible spectrum, with no absorption bands within the 185-2500nm wavelength range. It has strong absorption bands within the 2600-2800nm wavelength range, is non-luminescent, and has stable light radiation. JGS2 Quartz Glass: This type is applicable in the spectral range of 220-2500nm. It is transparent in the ultraviolet and visible spectrum, with no absorption bands in the 200-2500nm wavelength range. It has strong absorption bands within the 2600-2800nm wavelength range, is non-luminescent, and has stable light radiation. JGS3 Quartz Glass: This type is applicable in the spectral range of 185-2500nm. It is transparent in the visible light and infrared spectrum, with no significant absorption bands within the 2600-2800nm wavelength range. It's important to note that due to different morphologies and crystal cell structures of quartz, different forms and structures can lead to variations in the way quartz crystals propagate light and in their wavelength ranges. Therefore, the specific wavelength range of quartz may vary depending on the morphology and... --- ### Quartz Purity Across Different Industries - Published: 2024-04-23 - Modified: 2024-06-26 - URL: https://globalquartztube.com/quartz-purity-across-different-industries/ - 分类目录: Uncategorized The purity requirements for quartz in various application fields may not be the same. Purity refers to the content of impurities within the quartz, and different application fields have different requirements for purity based on specific application needs and performance requirements. High Purity for High Tech In some fields where high purity is required, such as semiconductor manufacturing and optical device production, high-purity quartz is needed. These applications usually require the content of impurities in quartz to be very low to ensure the performance and reliability of the products. For example, the semiconductor industry may require the purity of quartz to reach 99. 999% or even higher. Lower Purity Acceptance In some fields where the requirements for purity are relatively lower, such as building materials and ordinary glass manufacturing, the purity requirements for quartz may be relatively more lenient. These applications may accept quartz containing a certain amount of impurities because the impact of impurities on product performance is smaller. Moreover, even within the same application field, different specific applications may have different purity requirements. For example, in the optical field, quartz used for manufacturing high-precision optical devices may require higher purity, while quartz used for general optical applications may accept lower purity. Therefore, the purity requirements for quartz in different application fields are not the same, and the specific requirements depend on the specificity of the application and the quality requirements for the product. When selecting and using quartz, it is necessary to determine the required purity level based... --- ### The Differences Between Quartz Tubes and Tubes Made of Other Materials - Published: 2024-04-22 - Modified: 2024-06-26 - URL: https://globalquartztube.com/the-differences-between-quartz-tubes-and-tubes-made-of-other-materials/ - 分类目录: Uncategorized Quartz tubes are made from silicon dioxide and boast exceptional properties such as high temperature resistance, corrosion resistance, thermal stability, light transmissivity, and electrical insulation. These characteristics make them widely used in applications like discharge tubes, insulation products, acid-resistant containers, semiconductors, and more. To help you better understand the differences between quartz tubes and tubes made from other materials, we've compiled a comparison with some of the most common types of tubes. 1. Quartz Tubes vs. Carbon Fiber Tubes Quartz tubes use tungsten as their heating element, whereas carbon fiber tubes utilize bundles of carbon fibers. Quartz tubes generally have a continuous usage time of around 2000 hours, while carbon fiber tubes can last about 5000 hours. Quartz tubes offer a better cost-performance ratio than carbon fiber tubes. Carbon fiber tubes are mainly used in applications such as model airplanes and medical equipment, whereas quartz tubes are often found in heating devices like electric heaters. 2. Quartz Tubes vs. Halogen Tubes Halogen tubes are sealed and contain inert halogen gases, which allows them to heat up quickly and brightly, but they do not have a long lifespan. Quartz tubes, made from silicon dioxide, heat up at a moderate pace with moderate brightness and enjoy a long lifespan. 3. Quartz Tubes vs. Glass Tubes Quartz tubes have a high silicon dioxide content of over 99%, whereas glass tubes contain 70%-80% silicon dioxide with other components mixed in. Quartz tubes can withstand higher temperatures, remaining functional at 1100°C for long periods, which... --- ### How to Cut Quartz Tubes? - Published: 2024-04-19 - Modified: 2024-06-26 - URL: https://globalquartztube.com/how-to-cut-quartz-tubes/ - 分类目录: Uncategorized Quartz tubes are integral components in various industries, including electronics, lighting, and scientific research. Cutting quartz tubes to precise dimensions is essential for their application, but it requires careful handling and specific techniques to prevent material loss and ensure smooth edges. This guide provides a detailed walkthrough of several methods for cutting quartz tubes, catering to a range of equipment and skill levels. 1. Manual Cutting: Basic yet Effective Manual cutting stands out for its accessibility and the minimal equipment required. This method is ideal for small-scale operations or when precision equipment is not available. 1. 1 Tools Required: Hard alloy saw blade, grinding wheel, and sandpaper A stable clamping device to hold the quartz tube 1. 2 Procedure: Secure the quartz tube in the clamping device to prevent any movement. Use the hard alloy saw blade to gently saw through the tube along the desired mark. This process requires patience to minimize chipping or cracking. After cutting, employ the grinding wheel to even out rough edges, ensuring a smooth finish. Fine-grit sandpaper can then be used for final polishing. Clean the cut ends and the interior of the tube to remove any residue. 2. Mechanical Cutting: Precision and Efficiency Mechanical cutting utilizes specialized quartz tube cutting machines, which are perfect for larger operations or when uniformity and precision are paramount. 2. 1 Tools Required: Quartz tube cutting machine (e. g. , a high-speed centrifugal cutter) 2. 2 Procedure: Place the quartz tube onto the machine, ensuring it is securely... --- ### How to Choose High-Quality Quartz Tubes - Published: 2024-04-18 - Modified: 2024-06-26 - URL: https://globalquartztube.com/how-to-choose-high-quality-quartz-tubes/ - 分类目录: Uncategorized Introduction: Selecting high-quality quartz tubes is essential for ensuring the efficiency and longevity of applications in various industries. Given the diverse range of suppliers and manufacturers, it can be challenging to identify products that meet the highest standards of quality. To aid in this process, we have outlined several critical criteria to consider when evaluating quartz tubes. Smell the Product: A natural, stony scent indicates no harmful chemicals were added. Conversely, a strong formaldehyde smell suggests the use of hazardous adhesives, making the product unsuitable for use. Examine the Appearance: Surface Bubbles Bubbles on the surface signify poor manufacturing quality. Joints and Scratches Gaps or scratches at the seams indicate rough craftsmanship. Cracks and Fractures The presence of cracks or fractures denotes a substandard product. Check for Uniformity in Thickness: The walls of the quartz tubes should have consistent thickness throughout. Uneven thickness can lead to structural weaknesses, affecting the tube's durability and performance under thermal stress. Assess the Clarity and Color: High-quality quartz tubes should be clear and free of discoloration. Any tint or cloudiness may indicate impurities or defects in the material, potentially affecting its properties and suitability for certain applications. Conclusion: Choosing the right quartz tubes is more than just an economic decision; it's a commitment to quality and safety. By closely examining the physical characteristics and ensuring the absence of defects, you can select quartz tubes that meet your stringent requirements. For personalized assistance and to explore our range of high-quality quartz tubes, please don't hesitate... --- ### How is Industrial Quartz Glass Manufactured? - Published: 2024-04-17 - Modified: 2024-06-26 - URL: https://globalquartztube.com/how-is-industrial-quartz-glass-manufactured/ - 分类目录: Uncategorized Quartz glass is a material of paramount importance across several cutting-edge fields. Known for its exceptional properties, such as high transparency, resistance to thermal shock, low thermal expansion, and excellent electrical insulation, quartz glass is a cornerstone in industries such as information technology, optics, photovoltaics, semiconductors, and aerospace. Overview The creation of quartz glass can be approached through two main avenues: utilizing natural quartz or employing synthetic processes. Each method has its own set of steps and considerations, broadly classified into the melting of natural quartz crystals or silica and chemical synthesis from silicon compounds. Detailed Production Processes Natural Quartz Glass Production: This method relies on the melting of natural quartz or silica. The electric melting process is prevalent due to its efficiency, where quartz is melted in an electric furnace and rapidly cooled to form quartz glass. Despite its advantages, variations in raw material purity significantly influence the quality of the end product. Alternative methods like hydrogen-oxygen flame melting and plasma deposition offer solutions to purity challenges but come with their own set of limitations, such as high production costs or unwanted chemical content. Synthetic Quartz Glass Production: Synthetic processes involve chemical reactions of silicon compounds to produce quartz glass. Techniques such as Plasma-Enhanced Chemical Vapor Deposition (PCVD), Flame Hydrolysis Deposition (FHD), and the Sol-Gel process each tackle the production challenges differently, offering advantages in purity and control over the material's properties but varying in terms of complexity and cost. Detailed Steps in Quartz Glass Manufacturing: Purification Whether starting... --- ### Utilization and Maintenance of Quartz Tubes in Laboratory Muffle Furnaces - Published: 2024-04-16 - Modified: 2024-06-26 - URL: https://globalquartztube.com/utilization-and-maintenance-of-quartz-tubes-in-laboratory-muffle-furnaces/ - 分类目录: Uncategorized Quartz tubes play a crucial role in the functioning of tube furnaces, often employed in various laboratory settings. Here are some guidelines for their application and maintenance: 1. Hydrogen Gas Precautions It is generally advised not to use hydrogen gas in tube furnaces due to explosion risks, except at concentrations outside the explosive limits. If the use of hydrogen gas is necessary, appropriate safety measures must be taken. Ensure no one stands at either end of the tube during gas flow. Stainless steel tubes, which have a higher thermal conductivity than quartz, should be used for hydrogen gas to necessitate water cooling at both ends to prevent O-ring overheating and failure. 2. Softening Point Awareness Quartz tubes' softening point is around 1270°C. To avoid deformation or damage, it is recommended that the temperature not exceed 1200°C for more than 3 hours. 3. Heat Distribution When heating, always place ceramic furnace plugs inside the tube to ensure an even temperature distribution. Without these plugs, the temperature at the tube ends could become too high, compromising the O-rings in the flanges and affecting the gas tightness. The placement of furnace plugs also facilitates a uniform thermal field within the furnace. 4. Cleanliness and Material Handling It is vital to keep the inside of the furnace tube clean. When processing materials, to extend the life of the quartz tube, avoid placing them directly on the tube. Instead, use boat crucibles to contain the materials. 5. Use of Alumina Furnace Plugs It's essential to... --- ### Upstream Raw Materials and Downstream Applications of Quartz Products - Published: 2024-04-15 - Modified: 2024-06-03 - URL: https://globalquartztube.com/upstream-raw-materials-and-downstream-applications-of-quartz-products/ - 分类目录: Uncategorized In the quartz glass industry chain, quartz sand and silicon compounds (such as SiCl4) are positioned at the upstream level. Quartz sand serves as a crucial raw material for the quartz glass material and product industry, with its price directly impacting production costs. Based on quality and the needs of the downstream market, raw materials are broadly categorized into ordinary quartz sand and high-purity quartz sand for the electronic information sector. The raw materials undergo a series of processes including crushing, washing, drying, hydrolysis, and synthesis to form quartz glass. The less transparent, lower-quality quartz glass is often used to make quartz crucibles. Transparent quartz glass and higher-quality synthetic quartz glass are further processed into quartz fibers, tubes, rods, and ingots. The downstream applications of quartz glass primarily concentrate in the semiconductor, photovoltaic, fiber optic, electro-optical source, and aerospace industries. Quartz glass is typically processed into forms like ingots, cylinders, rods, and tubes before undergoing further processing. For instance, quartz ingots and cylinders are utilized as materials for quartz flanges, diffusion tubes, and bell jars in semiconductor processing techniques such as diffusion, oxidation, deposition, and etching; synthetic quartz ingots also serve as the main substrate material for photomask; more than 95% of the preform rods used in fiber optics are made of high-purity quartz glass, which also consumes a significant amount of quartz glass material during production. In the semiconductor industry, high-purity, pure, and high-temperature resistant quartz glass materials and products are indispensable accessories. Currently, semiconductor quartz is primarily divided... --- ### Difference Between Quartz vs. Carbon Fiber Heating Tubes - Published: 2024-04-12 - Modified: 2024-06-26 - URL: https://globalquartztube.com/difference-between-quartz-vs-carbon-fiber-heating-tubes/ - 分类目录: Uncategorized 1. Energy Consumption Comparison Quartz heating tubes heat up through the resistance of tungsten filaments. Carbon fiber heating tubes, being pure blackbody materials, have minimal visible light emission during the electrothermal conversion process, with an efficiency over 95%, saving 30% energy compared to heaters using nickel-chromium, tungsten-molybdenum, and other materials as heating elements. 2. Lifespan Comparison The lifespan of quartz heating tubes is generally 2000-3000 hours. Carbon fiber heating tubes have a lifespan of 500 3. Material Comparison Quartz heating tubes undergo simple sealing treatments, whereas carbon fiber heating tubes require vacuum extraction processing. In destructive testing, both quartz and carbon fiber heating tubes were powered for half an hour and then submerged in water for a destructive test. The result was that quartz heating tubes cracked, while carbon fiber heating tubes remained intact and continued to operate. 4. Quartz Tube Transparency Quartz heating tubes undergo simple sealing treatments, whereas carbon fiber heating tubes require vacuum extraction processing. In destructive testing, both quartz and carbon fiber heating tubes were powered for half an hour and then submerged in water for a destructive test. The result was that quartz heating tubes cracked, while carbon fiber heating tubes remained intact and continued to operate. 5. Environmental Comparison The metallic tungsten in quartz heating tubes is a non-renewable resource, whereas carbon fiber strands are renewable and environmentally friendly materials. Discarded carbon fiber strands do not pollute the environment. 6. Adjustability of Carbon Fiber Heating Tubes The temperature and power of carbon fiber heating... --- ### How to Clean Quartz Tube: A Guide for All Uses - Published: 2024-04-12 - Modified: 2024-06-26 - URL: https://globalquartztube.com/how-to-clean-quartz-tube-a-guide-for-all-uses/ - 分类目录: Uncategorized In this article, we will introduce concise quartz cleaning instructions, divided into three sections for different users: For individual consumers cleaning household quartz tubes, we recommend physical cleaning methods. For factories involved in cleaning industrial quartz tubes, chemical cleaning methods are suggested. For laboratories, we will detail specific laboratory cleaning methods. Physical Cleaning Methods—Suitable for Household Quartz Tubes Water Washing Method Immerse the quartz tube in clean water and gently wipe it with a brush or sponge. Ensure the use of pure water without any detergents or chemical agents. The water temperature should not exceed 60°C (140°F) to avoid damage. Air Blowing Method Employ high-pressure air to remove surface stains and dust. This method is effective for light contaminants but not for heavy substances like grease or paint. Chemical Cleaning Methods—Suitable for Industrial Quartz Tubes Acid Washing Method Soak the quartz tube in an acid-cleaning solution to dissolve surface deposits. The acid concentration should not exceed 10% to prevent damage to the quartz tube. After cleaning, it is crucial to rinse with plenty of water and neutralize with a neutral cleaning solution to remove any acid residue. Alkaline Washing Method Use an alkaline solution to dissolve surface stains and residues. The concentration and duration of cleaning should be carefully controlled to avoid damaging the quartz tube. After cleaning, neutralize and thoroughly rinse with water. Mechanical Cleaning The quartz tube cleaning procedure for mechanical cleaning must follow strict procedural standards.  If the cleaning tank contains hydrofluoric acid solution and it is... --- ### In-depth Analysis: What is High-Purity Quartz Technology? - Published: 2024-04-12 - Modified: 2024-06-26 - URL: https://globalquartztube.com/in-depth-analysis-what-is-high-purity-quartz-technology/ - 分类目录: Uncategorized High-purity quartz refers to quartz series products with a SiO2 purity greater than 99. 9%. It is the material foundation of high-end products in the silicon industry, widely used in industries such as photovoltaics, electronic information, optical communication, and electroluminescent sources. It holds an important position and role in the strategic emerging industries of new materials and new energy. Based on SiO2 purity, it can be classified into: Low-end with SiO2 ≥ 99. 9% (3N) Mid-end with SiO2 ≥ 99. 99% (4N) High-end with SiO2 ≥ 99. 998% (4N8) It can also be classified based on the total amount of impurity elements like Al, B, Li, K, Na, Ca, Mg, Ti, Fe, Mn, Cu, Cr, Ni, etc. , into: Low-end ≤ 1000×10^-6 Mid-end ≤ 100×10^-6 High-end ≤ 20×10^-6 Each purity grade of high-purity quartz can be divided into varieties such as 40-80 mesh, 80-140 mesh, 80-200 mesh, 80-300 mesh, and so on. High-purity quartz technology is a systematic engineering project that includes high-purity quartz raw material selection technology, processing technology, processing equipment technology, and quality inspection technology. These aspects are both independent and interrelated, forming a comprehensive technological whole. 1. High-Purity Quartz Raw Material Selection Technology 1. 1 Why can’t crystal be used as a high-purity quartz industrial raw material? Initially, high-purity quartz was processed from first and second-grade natural crystals. Natural crystals are usually formed in crystal cavity environments under certain geological conditions. The specificity of their genesis results in two inherent deficiencies: 1. Small reserves and poor mining... --- ### The Difference Between Quartz and Glass - Published: 2024-04-11 - Modified: 2024-06-03 - URL: https://globalquartztube.com/the-difference-between-quartz-and-glass/ - 分类目录: Uncategorized As society continues to evolve rapidly, the types of glass have become increasingly diversified, meeting the needs of various occasions. By adjusting its material and performance, glass materials can undergo different changes, making them more stable and durable. Quartz glass is a special type of glass that has emerged with the development of the times. But do you know the differences between quartz and glass and what advantages they offer? Let me introduce them to you below: Quartz: A Versatile Mineral Quartz is one of the widely distributed minerals on the Earth’s surface. There are various types of quartz. It is used as raw materials for everyday ceramics, such as vein quartz, quartz sand, quartzite, sandstone, silicon stone, chalcedony, diatomite, and others. It is of the same origin as ordinary sand and crystal. Glass: Categories and Manufacturing Glass is classified into flat glass and deep-processed glass. Flat glass is mainly divided into drawn flat glass (which can be further categorized into open slot and slotless), pulled flat glass, and float glass. Float glass is becoming the mainstream method of glass manufacturing due to factors such as its uniform thickness, smooth and parallel upper and lower surfaces, high labor productivity, easy management, and more. Differences in Surface Appearance Quartz is a crystal, a mineral composed of silicon dioxide (SiO2). Pure quartz is colorless and transparent, but due to the existence of trace colorant ions, finely dispersed inclusions, or color centers, its transparency is reduced, showing various colors. It has a glass... --- ### The Difference Between Quartz and Stainless Steel Heating Tubes - Published: 2024-04-11 - Modified: 2024-06-26 - URL: https://globalquartztube.com/the-difference-between-quartz-and-stainless-steel-heating-tubes/ - 分类目录: Uncategorized When it comes to industrial and domestic heating solutions, the debate between quartz and stainless steel heating tubes is prevalent. Each type offers distinct advantages and challenges, making the choice highly dependent on specific needs and applications. Advantages and Challenges of Quartz Heating Tubes Quartz heating tubes are renowned for their efficient conversion of electrical energy into far-infrared radiation. This process is facilitated by the tubes' construction from milky quartz glass, processed through special techniques, and paired with resistance heating materials. The ability to absorb nearly all near-infrared and visible light and convert it to far-infrared radiation stands as a significant advantage. However, quartz's brittle nature and susceptibility to impact limit the length of the tubes that can be manufactured. Additionally, the opaque nature of milky quartz impedes the transfer of heat, a factor gradually leading to the phase-out of such tubes in industrial applications in favor of alternatives offering clearer heat transmission. Stainless Steel Heating Tubes: The Efficient Alternative Stainless steel heating tubes operate on the principle of forced convection, using a pump to circulate fluid through the heating chamber. This method offers considerable energy savings, ease of installation, and notable economic benefits compared to traditional heating methods. Despite their lower tolerance to extreme temperatures and tendency to lose luster under such conditions, stainless steel tubes provide a robust solution for applications requiring uniform heat distribution across large areas. Their self-cleaning capability further adds to their appeal, albeit at a higher cost compared to quartz tubes. Quartz vs. Stainless... --- ---