Can ordinary white glass (Bai Jiuping) replace quartz glass?
Quartz glass has a series of excellent physical and chemical properties, such as: 1, high temperature resistance. The softening point temperature of quartz glass is about 1730 DEG C, which can be used for a long time at 1100 DEG C, and the maximum temperature can reach 1450 DEG C for a short time. 2, corrosion resistance. Except hydrofluoric acid, quartz glass and other acids almost no chemical reaction, the acid resistance is 30 times 150 times of ceramic, stainless steel, especially the chemical stability at high temperatures, any other engineering materials are incomparable. 3. Good thermal stability. The quartz glass thermal expansion coefficient is extremely small, can withstand the temperature changes, the quartz glass is heated to 1100 degrees Celsius, the water will not burst into the room. 4, good light transmission performance. The quartz glass has better transmittance in the whole spectral range from ultraviolet to infrared, and the transmittance of visible light is above 93%. Especially in the ultraviolet spectrum region, the maximum transmittance is above 80%. 5 、 good electrical insulation performance. The resistance of quartz glass is equal to ten thousand times of that of ordinary glass. It is an excellent insulating material. It has good electrical properties even at high temperature.
Quartz glass is a kind of special industrial technology glass made of silicon dioxide. It is a very good basic material.
The glass is the main component in the manufacturing process of quartz sand, quartz sand is combined with other chemical materials at high temperature (1300 degrees Celsius) crystallized after firing the cooling of the body, with a hard, abrasion resistance, corrosion resistance and high transmittance characteristics, its wide application has a long history. The manufacturing technology of the use of glass a thousand li a day, increasing by the clock, glass, doors and windows, lamps, such as high-tech electronic components and space technology, are indispensable glass. Our daily contact with most of the "flat glass is" thick to thin for doors and windows, clocks and the use of medical tests, the manufacturing method is that the furnace in the glass slurry level or traction method (also called float) and vertical traction method. After the dissolution of soluble traction after furnace also has the cooling system, cooling after the completion into a "flat glass, flat glass thickness mainly depends on the speed of traction, traction faster, can be manufactured and thinner. Although the ordinary flat glass from the front appears bright transparent, but from the side near the edge is slightly blue, because the amount of glass color depends on the main raw material in the manufacture of glass - quartz sand and iron content of purity. Generally, the thin glass used in the watch industry is superior in quality but expensive in value, mainly because the material used in quartz sand is superior and the iron content is very low (usually under 3/10000)
