What is Silicon Carbide Powder?
Among high-tech refractory raw materials such as C, N, and B oxides, silicon carbide powder is widely used and is an economical raw material. It can be called emery like black steel stone.
China’s silicon carbide smelting production process, technical equipment, and energy consumption per ton have reached the world’s advanced level. The chemical content and particle size distribution of black and green silicon carbide powders.
Silicon Carbide Powder Production Process
The content of natural silicon carbide is not too much, so silicon carbide is mainly artificial silicon carbide. The common method is to mix quartz sand and coke, use the silica and oil in it, add salt and sawdust, put it in an electric furnace, and heat it to 2000°C At high temperatures, silicon carbide powder is obtained after various chemical processes.
Classification of Silicon Carbide Powder
1. Black silicon carbide powder: Contains about 95% silicon carbide. Its toughness is higher than green silicon carbide. It is mostly used to process materials with low tensile strength, such as glass, ceramics, stone, refractory materials, cast iron, and non-ferrous metals.
2. Green silicon carbide powder: Contains more than 97% silicon carbide and has good self-sharpening properties. It is mostly used for processing cemented carbide, titanium alloy, and optical glass, and is also used for precision grinding of high-speed steel tools, etc.
Silicon Carbide Powder Uses
Silicon carbide powder has the characteristics of good wear resistance and high strength. It is mainly used for the production of grinding wheels, sandpaper, abrasive paste, and the grinding and polishing of monocrystalline silicon, polycrystalline silicon in photovoltaic products, and piezoelectric crystals in the electronics industry.
Chemical industry: Silicon carbide powder can be used as a deoxidizer for steelmaking and a modifier for the structure of cast iron. It can be used as a raw material for manufacturing silicon tetroxide and is the main raw material for the silicone resin industry.
Refractory and wear-resistant: not only can be used for various smelting furnace linings, high-temperature furnace components, etc., but can also be used as high-temperature indirect heating materials in the non-ferrous metal smelting industry.
Silicon carbide powder can not only be used to make nozzles and gas turbine blades but is also an ideal material for highways, aviation runways, solar panels, water heaters, etc.
In terms of non-ferrous metals: Silicon carbide powder is used to resist high temperatures and has high strength, good thermal conductivity, and impact resistance. It can be used as a high-temperature indirect heating material.
Silicon carbide used in steelmaking: Silicon carbide powder has the characteristics of corrosion resistance, thermal shock resistance, wear resistance, and good thermal conductivity. It is used to make large blast furnace linings, which improves the service life.
Metallurgical mineral processing: The hardness of silicon carbide powder is second only to diamond and has strong wear resistance. Therefore, silicon carbide is an ideal material for wear-resistant pipes and linings of ore hoppers.
Building materials ceramic grinding wheel: manufacturing thin plate kiln furniture can not only expand the kiln capacity but also shorten the production cycle. It is an indirect material associated with ceramic glaze sintering.