What is the material of high borosilicate?

High borosilicate glass (also known as hard glass), because of the coefficient of thermal expansion of the line (3.3 ± 0.1) × 10-6 / K, is also known as "borosilicate glass 3.3". It is a special glass material with low expansion rate, high temperature resistance, high strength, high hardness, high light transmittance and high chemical stability. Due to its excellent performance, it is widely used in solar energy, chemical industry, pharmaceutical packaging, electric light source. , craft jewelry and other industries. Its good performance has been widely recognized by all walks of life around the world, especially in the field of solar energy, and developed countries such as Germany and the United States have carried out more extensive promotion.

The borosilicate glass has a very low coefficient of thermal expansion, high temperature resistance, and a temperature difference of 200 degrees. The borosilicate glass is used for the reflective heat-resistant lamp cup of the halogen lamp and the electrical equipment which must use the heat-resistant glass, such as the glass turntable for the microwave oven, the microwave lampshade, the stage light reflection cup, the observation window of the drum washing machine, and the heat-resistant teapot cup.