What is the raw material of glass made of?
The glass raw materials used for the natural ore, so the manufacture of glass, first of all to all kinds of ore crushing, processing into powder, then according to the glass component, made with the material into the glass melting furnace for melting glass forming liquid. Qualified glass flows through the feed tank and flows out of the feed port to form the stock. The temperature of the stock is 1150~1170 degrees centigrade and the alkali free glass is 1200~1220 degrees centigrade. The material shares every minute near '200 times cut into ball billet. The billet passes through the chute, the ball distributor and the ball plate, and then rolls into different funnels respectively, then falls into a groove formed by three rollers with the same rotating direction. When the ball is rotated on the roller and its surface tension, the ball glass is formed gradually. Its diameter is determined by the thickness, velocity, and shear velocity of the glass stream.
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. The main difference is that the raw material used in the quartz sand is superior and the iron content is very low (usually under 3/10000)
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.
