石英管

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 […]

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

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 2. Quartz Tube Cleaning 3. Quartz Tube Sealing 4. Post-Processing 5. Important Considerations Further Recommendations To achieve the best sealing results, operators should follow relevant industry standards and operational guidelines. Specific sealing temperatures, time controls, and the choice of sealing materials should be adjusted according to the specific application and requirements of the quartz tube. Additionally, performing pressure resistance tests or other quality checks before and after sealing ensures the quartz tube’s sealing performance and longevity. GlobalQT specializes in manufacturing high-quality

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. 2. High-Temperature Treatment Method Overview: Place the quartz tube in a high-temperature furnace to volatilize

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. 2. Power Supply Voltage Testing This test ensures that the quartz tube receives the correct voltage for optimal performance. Handling and Maintenance Tips Safe Handling Quartz tubes are fragile and require careful handling: Post-Use Cleaning To maintain the quartz tube’s high purity and prolong its service life: GlobalQT is