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Quartz glass is a kind of special industrial glass made of silica, which is a very good basic material. Quartz glass has a series of excellent physical and chemical properties.
1. High temperature resistance: quartz glass softening point temperature is about 1730 degrees Celsius, can be used for a long time at 1100 degrees Celsius, short time the highest temperature can reach 1450 degrees Celsius.
2. Corrosion resistance: in addition to hydrofluoric acid, quartz glass almost no chemical reaction with other acids, its acid resistance is 30 times that of ceramic, 150 times that of stainless steel, especially in high temperature chemical stability, is unmatched by any other engineering materials.
3. Good thermal stability: quartz glass thermal expansion coefficient is very small, can withstand drastic temperature changes, the quartz glass heated to 1100 degrees Celsius or so, put into normal temperature water will not burst.
4. Good transmittance: quartz glass has good transmittance in the whole spectral band from ULTRAVIOLET to infrared. The transmittance of visible light is more than 93%, especially in the ultraviolet spectral region, the maximum transmittance can reach more than 80%.
5. Good electrical insulation performance: the resistance value of quartz glass is equivalent to 10,000 times that of ordinary glass. It is an excellent electrical insulation material and has good electrical performance even at high temperature. Quartz glass is widely used in electric light source, semiconductor, optical communication, military industry, metallurgy, building materials, chemistry, machinery, electric power, environmental protection and other fields due to its excellent physical and chemical properties.
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