Quartz glass tube is made of silica [1] special industrial technical glass, is a very good foundation materials. Quartz glass has a series of excellent physical and chemical properties, such as:
1, resistant to high temperature
Quartz glass softening point temperature of about 2730 degrees Celsius, can be used for a long time at 2100 degrees Celsius, the maximum use temperature of short time up to 2450,
2, corrosion resistance
Except hydrofluoric acid, quartz glass hardly and other acids occurred chemical reaction, the acid resistant ability is 30 times of ceramic, stainless steel 150 times, especially chemical stability at high temperature, is unmatched by any other engineering materials.
3, good thermal stability
Quartz glass thermal expansion coefficient is extremely small, can withstand drastic temperature changes, will quartz glass heating to 1100 DEG C or so into the water at room temperature, will not burst.
4, good light transmission performance
Quartz glass in the ultraviolet to infrared light of the whole spectral band has a good light transmission performance, visible light transmittance above 93%, especially in the ultraviolet spectral region, the maximum transmittance of up to 80.
5, good electrical insulation performance
The resistance value of quartz glass is ten thousand times that of ordinary glass, it is an excellent electrical insulating material, even at high temperature, it also has good electrical properties.
Due to its excellent physical and chemical properties, quartz glass has been widely used in electric light source, semiconductor, optical communication, military industry, metallurgy, building materials, chemical, mechanical, electric power, environmental protection and other fields.