Quartz tube, quartz crucible, quartz boat and other products are special industrial technology glass made of silica, which is a very good basic material. It can be used at 1100℃ for a long time, and the temperature can reach 1120℃ for a short time.
Features Are As Follows:
　　1. Corrosion resistance. In addition to hydrofluoric acid, quartz hardly reacts with other acids, and its chemical properties are equally stable under high temperature conditions.
　　2. The coefficient of thermal expansion is very small. Can withstand drastic temperature changes, heating quartz to about 1100℃, directly into the water will not burst;
　　3. The resistance value is large. The resistance value is equivalent to 10,000 times that of ordinary glass, which is a good electrical insulation material;
　　4. Good permeability. In the ultraviolet, visible light, infrared band has a good light transmission performance, in the visible light band, the transmittance can reach 93%.