Beijing Emery,? Beijing emery manufacturers, Beijing emery price

Contact; Liu Xuan 13701126040 corundum formation of silicon carbide (SiC) with quartz sand, petroleum coke (or coal), sawdust smelting furnace by high temperature resistance. Silicon carbide also exists in nature, a rare mineral moissanite. Silicon carbide, also known as Moissanite. In contemporary C, N, B and other high-tech non-oxide refractory materials, and silicon carbide is most widely used and most economical. It can be called emery or refractory sand. Silicon carbide is made of quartz sand, petroleum coke (or coal), wood (need to increase the production of green silicon carbide salt) and other raw materials in high temperature resistance furnace smelting. China's industrial production is currently divided into black silicon carbide, silicon carbide and green silicon carbide are two, are hexagonal, a specific gravity of 3.20 - 3.25, the hardness of 2840 ~ 3320kg / mm2. ⑴ use as an abrasive, it can be used for grinding tools, such as grinding wheel, Whetstone, grinding, sand tiles and the like. ⑵ as metallurgical deoxidizer and high-temperature materials. Silicon carbide, there are four main application areas, namely: functional ceramics, advanced refractories, abrasives and metallurgical materials. Silicon carbide coarse material has been able to supply a large number, can not be considered high-tech products, and high-tech nanoscale silicon carbide powder application short economies of scale impossible. ⑶ high purity single crystal, can be used to manufacture semiconductors, manufacture silicon carbide fibers main purposes: for 3-12 inch monocrystalline silicon, polycrystalline silicon, gallium arsenide, quartz and other wire cutting. Solar photovoltaic industry, the semiconductor industry, engineering of piezoelectric crystal industry processing materials. Abrasives mainly used for the production of grinding wheels, sandpaper, belt, Whetstone, grinding blocks, grinding, polishing paste and photovoltaic products in terms of silicon, polycrystalline silicon and electronics industries piezoelectric crystals grinding and polishing.