Quartz tube, quartz crucible, quartz boat products such as special industrial technology is made from silica glass, is a very good base material.Can be use for a long time under 1100 ℃, a short period of time the highest temperature can reach 1120 ℃.Characteristics are as follows:
1, resistant to corrosion.Except hydrofluoric acid, quartz and other acids material hardly reaction, chemical properties under the condition of the same stability at high temperature;
2, with low thermal expansion coefficient.Can withstand the severe temperature changes, the quartz heated to about 1100 ℃, directly into the water will not burst;
3, large resistance value.Resistance is equivalent to ten thousand times of common glass, is an excellent electrical insulating materials;
4, permeability is good.In the ultraviolet, visible light, infrared wavelengths have good pervious to light performance, within the visible spectrum, transmittance can reach 93%.