sic 95

Silicon carbide(silicon carbide block), also known as emery or refractory sand, has a chemical formula of SiC and is a very widely used inorganic substance. There are two types of silicon carbide obtained by industrial production, namely black silicon carbide and green silicon carbide.

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 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.

Silicon carbon is a new kind of reinforced steel-making deoxidizing agent and ideal thermal insulating agent.it is used for deoxidizing. The usage dose is 1-4kg/t can make electricity consumption to reduce 15-20kw/h and time to reduce 15-20min per furnace to raise productivity rate to 8-10%.

SIC is made from quartz sand and petroleum coke(smokeless acetylene) (salt added in the produce of green silicon carbide) as the mainraw material.it is made via light resistance from hydrometallurgical,it is black opaque body hexagonal crystal and MOHS -hardness in the 915-9.5,which is after diamond and boron carbide with crisp and sharp performance and certain degree of conductive heat.

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

The purity of black siliconcarbide refractory series is88-98%, which can meetthe purity needs ofdifferent customers.lt canprocess products ofvarious particle sizesaccording to customerrequirementsBlack siliconcarbide particle size sandis washed with acid andalkali to control freecarbon, iron and aluminumand effectively removeinternal impurities