Quartz glass sheet
Quartz glass is a special industrial technical glass composed of a single component of silicon dioxide (SiO2). It has a series of special functions that cannot be replaced by other glass materials. It plays an important role in modern industry and high-tech fields. Varieties of quartz glass:
Quartz glass is divided into two categories: transparent and opaque. Transparent quartz glass can be divided into ordinary quartz glass, high-purity quartz glass and doped quartz glass.
1. Mechanical properties: Quartz glass is a brittle material with very low tensile strength and high compressive strength, the latter is 20 times that of the former.
2. Thermal properties: Quartz glass is a glass with a low expansion coefficient and extremely high thermal vibration resistance. It can meet the temperature resistance of 700-1200℃ for a long time and the highest temperature resistance of 1500 degrees. And quartz glass is also a special poor conductor.
3. Optical properties: An important difference between quartz glass and ordinary glass is its good transmittance in the entire spectrum. Its transmittance in the ultraviolet and deep ultraviolet spectrum is not available in general optical glass.

4. Chemical properties: Quartz glass is a material with very good chemical stability. It does not react with water, salt solution and most acids. Quartz glass does not absorb moisture or weather. Only hydrofluoric acid can corrode quartz glass. Application of quartz glass: The technical fields involved in the application of quartz glass are very wide. Small-diameter transparent or opaque quartz glass tubes manufactured by continuous melting process are widely used in the electric light source industry. The process of this kind of tube is relatively simple, and the price is relatively cheap due to the low cost of continuous production. Large-diameter tubes and plates manufactured by the two-step process of gas refining and electric melting are important equipment materials in the semiconductor industry, and the demand is growing. Precision and high-quality transparent quartz glass tubes are mostly used as blank tubes for manufacturing optical fiber preforms. High-quality transparent quartz glass large materials are the main raw materials of the optical industry, especially the light source projection system and imaging system used in ultra-large-scale airport circuit lithography technology are the main application areas of high-quality optical quartz glass;. Special quartz glass has also played an important role in the rapid development of. The aerospace industry needs to use quartz glass windows and camera lenses that are both radiation-resistant and have high resolution. In addition, a large number of opaque and quartz glass products are also needed in the machinery, chemical and other industries.