Quartz glass tube is a special glass product made mainly of high-purity silicon dioxide (SiO ₂), which has excellent physical, chemical, and thermal properties and is widely used in industries, scientific research, optics, semiconductors, and other fields.
一 、 Performance characteristics:
1，High temperature resistance: The softening point temperature is about 1730 ℃, and it can be used for a long time at 1100 ℃. The maximum temperature for short-term use can reach 1450 ℃.
2. Good chemical stability: Except for hydrofluoric acid, quartz glass tubes hardly react chemically with other acidic substances, and their acid resistance is 30 times that of ceramics and 150 times that of stainless steel.
3. Good thermal stability: The coefficient of thermal expansion is extremely small, and it can withstand drastic temperature changes. When heated to around 1100 ℃, it will not explode even when placed in room temperature water.
4. Good transparency: It has good transparency in the entire spectral range from ultraviolet to infrared, with a visible light transmittance of over 93%, especially in the ultraviolet spectral region, where the maximum transmittance can reach over 80%.
5. Good electrical insulation performance: The resistance value is equivalent to ten thousand times that of ordinary glass, making it an excellent electrical insulation material with good insulation performance even at high temperatures.
二， types: can be roughly divided into transparent quartz tubes, UV filtered quartz tubes, colored quartz tubes, etc.
三，Application fields:
Semiconductor and Photovoltaic Industry: Used as furnace tubes for diffusion furnaces, oxidation furnaces, and PECVD equipment carriers.
Lighting industry: It is the outer shell of halogen lamps, ultraviolet lamps, etc., and can also be used for packaging and protection of high-power LEDs.
Optics and optical communication: It can manufacture optical components such as lenses, prisms, and window plates, and is also the deposition substrate for fiber preform rods.
Chemical and laboratory: used for making corrosion-resistant reactors, condenser tubes, distillation equipment, etc.
Medical and Life Sciences: Can be used for UV sterilization lamps, medical lasers, etc.
Electricity and Energy: Can serve as protective sleeves for high-temperature sensors, etc.
