Quartz glass is a special industrial glass made of silicon dioxide. It is a very good basic material.

    Quartz glass has a series of excellent physical and chemical properties, such as:

1, high temperature resistance. The softening point of quartz glass is about 1730 degrees centigrade and can be used for 1100 hours at a temperature of 1450 degrees Celsius in a short time.

2. Corrosion resistance. In addition to hydrofluoric acid, quartz glass has almost no chemical reaction with other acids. Its acid corrosion resistance is 30 times better than that of acid resistant ceramic, 150 times better than that of stainless steel, especially at high temperature, which is incomparable to any other engineering material.

3. The thermal stability is good. Quartz glass has a small thermal expansion coefficient and can withstand severe temperature changes. It can heat the quartz glass to about 1100 degrees Celsius, and it will not burst if it is put into normal temperature water. 

4. The light transmittance is good. Quartz glass has better transmittance in the whole spectral band of ultraviolet to infrared, and the transmittance of visible light is above 92%, especially in ultraviolet spectrum area, the maximum transmittance can be over 80%.

5. The electrical insulation performance is good. Quartz glass has a resistance value of ten thousand times that of ordinary glass. It is an excellent electrical insulating material and has good electrical properties even at high temperatures. The other very main characteristics of quartz glass can be made of high purity material, high purity quartz glass metal impurity content is 20 x 10-6, synthetic quartz glass metal impurity content is only 1 * 10-6, optical communication quartz glass and semiconductor industrial quartz glass is the use of this property.

The electrical vacuum performance of quartz glass is also good, and the electrical vacuum can reach 10-6 pos. Quartz glass has many excellent physical and chemical properties, so its comprehensive application effect is good. For example, the semiconductor industry is the use of quartz glass with high purity, temperature resistance, low expansion and other comprehensive properties. The light transmittance of quartz glass, electrical insulation, vacuum, temperature resistance and low expansion, can not be replaced by other materials.