Silicon Carbide

silicon carbide is made of petroleum coke and silica as the main raw materials, adding salt as additives, and smelting at high temperature in a resistance furnace.

Silicon carbide is an ideal compound deoxidizer, desulfurizer.ca and si has a strong affinity with oxygen. Especially calcium, not only has a strong affinity with oxygen , and sulfur, nitrogen has a very strong affinity.

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials.

Silicon carbide includes black silicon carbide and green silicon carbide, among which: black silicon carbide is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, which are smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, its mechanical strength is higher than corundum, and it is brittle and sharp. Green silicon carbide is made from petroleum coke and high-quality silica as the main raw material, adding salt as an additive, and smelted at high temperature in a resistance furnace. Its hardness is between corundum and diamond, and its mechanical strength is higher than that of corundum.

Silicon carbide has four main application fields: functional ceramics, advanced refractories, abrasives and metallurgical raw materials. Silicon carbide can be supplied in large quantities and can not be regarded as a high-tech product. However, it is impossible to form economies of scale in a short period of time for the application of nano-sized silicon carbide powders with very high technology content. [3]
As abrasive, it can be used for grinding tools, such as grinding wheel, oil stone, grinding head, sand tile and so on.

Silicon carbide is formed by reacting silica in clay with carbon at high temperature.
Emery uses granular abrasives as the bottom medium of the filter bed to purify drinking water or wastewater. It has high melting point, large specificity, strong acid resistance and abrasion resistance, and strong dirt interception ability. It is another new type of filter material for sewage treatment.

Black silicon carbide is produced at high temperature in an electric resistance type furnace with quarts sand and petroleum coke as its main raw materials.

Silicon carbide is made of quartz sand, petroleum coke (or coal coke), wood chips and other raw materials through high-temperature resistance furnace smelting. Silicon carbide is also called moissanite. Among contemporary non-oxide high-tech refractory raw materials such as C, N, and B, silicon carbide is the most widely used and economical type, which can be called gold steel sand or refractory sand

Black Silicon Carbide is brittle and sharp. It has a good electrical and heat conductivity. Its Knoophandness is 3100-3280kg/mm2. Grinding wheels made of C are suitable for the grinding of metal and nometalic materials of low tensile strength such as grey cast iron, brass, aluminium, stone materials, leather and rubber etc. Moreover, it can also be used in the manufacture of refractory products and electric products etc.