|   Silica quartz glass are used to create special industrial   technology glass, is a very good basic material.   Quartz glass with a series of excellent physical and chemical   properties, such as:   1, high temperature. Quartz glass softening point temperature is   about 1730 ℃, can be used for long periods under 1100 ℃, the highest short-term   use temperature of 1450 ℃.  2, corrosion resistance. In addition to hydrofluoric acid, the   quartz glass hardly acids and other substances react chemically, and its acid   capacity is 30 times ceramic, stainless steel 150-fold, especially in high   temperature chemical stability, are any other engineering materials can   elsewhere in the world.   3, thermal stability. Quartz glass thermal expansion coefficient   is extremely small, can withstand severe temperature changes, the quartz glass   heated to about 1100 ℃, Add room temperature water will not cracks.   4, transmittance performance. Quartz glass in the entire UV to   infrared spectral bands have better light transmission performance, visible   light transmittance of 93% or more in, especially in the UV spectral region, the   largest up to 80% transmittance.  5, good electric insulation properties. Quartz glass resistance   value equivalent to ten thousand times that of ordinary glass is an excellent   electric insulating materials, even at a high temperature also has a good   electric performance.
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