Performance Of Silicon Carbide-TAOANG

Over the past 18 years, TAOANG products range from raw material bauxite to processing follow-up products brown fused alumina, finishing white fused alumina and dense fused alumina, bubble alumina, and fused alumina micro powder. The production process is fully controlled to achieve control of product quality and price.

Due to its stable chemical properties, high thermal conductivity, low thermal expansion coefficient and good wear resistance, silicon carbide has many other applications besides abrasives, such as coating silicon carbide powder on turbine impeller or cylinder block by special process. The inner wall can improve the wear resistance and prolong the service life by 1 to 2 times; the advanced refractory material used for the manufacture is heat-resistant, small in volume, light in weight and high in strength, and has good energy-saving effect. Low grade silicon carbide (about 85% SiC) is an excellent deoxidizer, which speeds up steelmaking and facilitates control of chemical composition and quality of steel. In addition, silicon carbide is also widely used to make silicon carbide rods for electric heating elements. There are also many orders for black silicon carbide powder, but the amount used is not much. Therefore, there are not many products produced in the market. Generally speaking, the size of silicon carbide used by the manufacturer is generally between 240 mesh and 400 mesh. Finer, the market is even less processed. Silicon carbide powder is a powdery product processed by a milling device, namely SiC powder or silicon carbide fine powder. According to the nature and characteristics of silicon carbide, it is divided into: black silicon carbide powder and green silicon carbide powder. Classification and use: 1. Black silicon carbide: primary, secondary and tertiary silicon carbide powder. Mainly used in refractory materials, abrasives, casting, sandblasting, polishing, ceramics and other industries and metallurgical silicon carbide deoxidizer. 2. Silicon carbide dusting powder: It is divided into black silicon carbide dusting powder and green silicon carbide dusting powder. In the process of producing green silicon carbide micropowder, a large amount of dusting powder is produced. Its application is very extensive, not only saves energy, but also creates considerable economic benefits. The dusting powder content of the green silicon carbide 2# port is greater than 95%, and the content of the 3# port is greater than 90%. It is a high-quality raw material for refractory materials and thermal insulation coatings. Performance and features: The silicon carbide powder is black, brittle and sharp, and has good thermal conductivity and electrical conductivity. The microscopic shape is hexagonal crystal, and the Mohs hardness of silicon carbide is 9.2, Vickers microhardness, Knoop hardness, microhardness. It is higher than corundum in abrasives and is second only to diamond, cubic boron nitride and boron carbide. The density is generally considered to be 3.20 g/mm3, and the natural bulk density of the silicon carbide abrasive is between 1.2 and 1.6 g/mm3, and the specific gravity is 3.20 to 3.25. Black silicon carbide is made of petroleum coke and high-quality silica as the main raw material, adding salt as an additive and smelting by electric furnace at high temperature. Compared with green silicon carbide, black silicon carbide has a slightly lower purity, hardness and brittleness.

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