Applications of Quartz Glass in Diverse Industries

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).

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.

Opaque quartz glass (milky quartz glass) is used to manufacture infrared heaters, space heaters, and crystal heaters, consuming nearly a thousand tons of milky quartz glass tubes annually. It is primarily used for heating electroplating solutions, acids, residential heating, and the heating of tempered glass, as well as in industrial paint baking ovens for bicycles, automobiles, and in food, paper, and textile industry ovens.

Due to its superior acid resistance and heat resistance, quartz glass is widely used in the chemical industry for devices such as synthetic hydrochloric acid units, high-temperature acid gas combustion, cooling and guiding devices, acid solution evaporation, cooling, absorption and storage devices, and the manufacture of distilled water, hydrochloric acid, sulfuric acid, and nitric acid. It is also used in chlorine reaction containers, distillation column packing, steam-heated agitators, acid-resistant valves, and filter plates.

Quartz glass, with its excellent electrical insulation and heat resistance, is used in Coulter static integrators, high-frequency and various electrical meter insulation materials, power plant boiler water level tubes, and high-voltage insulation tubes.

Quartz glass, being a non-contaminating pure fired material, serves as firing containers for phosphor materials and various cups and plates.

Quartz glass is widely used for general thermometer protective tubes; it is also indispensable for immersion high-temperature thermometers and temperature measurement in steelmaking.

Due to its excellent heat resistance, quartz glass is used in sample collection tubes for analyzing oxygen and carbon in blast furnaces and open hearth furnaces; it is also used in quartz glass for steel continuous casting and rolling, precious metal smelting (gold, platinum), and non-ferrous metal smelting (aluminum and alloys, fusible metal evaporation tanks).

Quartz glass, with its excellent electrical properties, heat resistance, and airtightness, serves as core tubes and outer tubes for electric furnaces, gas furnaces, high-frequency furnaces, and can also be used for air, various gases, and vacuum furnaces.

Quartz glass, due to its many excellent properties, is used in components of dilatometers, thermal balances, electrical measuring devices, spring scales, seismometers, and as analytical tools in flasks, beakers, evaporating dishes, crucibles, boats, sulfur quantification devices, condensers, and absorption units of spectrophotometers.

Quartz glass, with its high ultraviolet transmittance, heat resistance, and low expansion properties, is used in shadow photography windows, heat-resistant lenses and windows, reflective mirrors for reflecting telescopes, prisms, and windows for gas lasers, as well as optical standards. Additionally, due to its composition exclusively of SiO2, it can be used in optical glass melting crucibles and tubes.

80% of the world’s information services are transmitted through optical fibers, making the optical fiber industry strategically significant. The development of optical fibers relies on quartz glass, as optical fibers are made from quartz glass fibers. The production of quartz glass fibers requires quartz glass preforms and cladding tubes.

Additionally, quartz glass is needed in biotechnology, optical communication technology, nuclear technology, laser technology, aviation technology, and aerospace technology. Quartz glass, like MSG in cooking, is used in small quantities but is extensively needed across various industries, making it a critically important new material with significant socio-economic benefits.

As a leading provider of high-quality quartz glass solutions, Global Quartz Tube is committed to delivering innovative and customized products tailored to meet the diverse needs of industries worldwide. For more information or to discuss your specific requirements, please contact us at contact@globalquartztube.com.