Use of black silicon carbide powder

Black silicon carbide powder is a type of silicon carbide abrasive and is usually black in color. What is black silicon carbide powder used for??

Introduction of Sic Powder

1. Silicon carbide is also called moissanite. It can be called emery sand or fireproof sand. Black silicon carbide has a metallic luster, contains more 95% SiC and stronger than green silicon carbide, but has less hardness. It is mainly used for grinding cast iron and non-metallic materials.
2. The industrial method of producing silicon carbide is to use high-quality quartz sand and petroleum coke for refining in a resistance furnace. The resulting silicon carbide blocks are converted into products with different particle sizes by crushing, acid and alkali washing, magnetic separation and sieving or separation of water.
3. Black silicon carbide contains about 98,5% SiC, and its impact strength is higher, than green silicon carbide. It is mainly used for processing materials with low tensile strength. Silicon carbide is very hard and has excellent thermal conductivity. This is a semiconductor. Can resist oxidation at high temperatures.
4. Due to its stable chemical properties, high thermal conductivity, Low coefficient of thermal expansion and good wear resistance, black silicon carbide has many other applications, in addition to being used as an abrasive. It is used to make high quality fireproof materials, resistant to thermal shock and small in size. , light and high strength, with good energy saving effect.

Uses of black silicon carbide powder

1. Abrasives: Black silicon carbide in foreign light industry is mainly used as abrasives. Because black silicon carbide has high hardness, It is mainly used for grinding and polishing optical glass, cemented carbide, titanium alloys and bearing steel, sharpening of high-speed steel tools, etc.; black silicon carbide is mainly used for cutting. and grinding materials with low tensile strength.
2. Fireproof material: Black silicon carbide has good thermal shock resistance, so it is high quality fireproof material. Depending on the manufacturing process of the product, it can be divided into recrystallized black silicon carbide products, high temperature hot pressed products, products with silicon nitride or clay as a binder, etc.. Main products and applications are components and supports for high temperature furnaces.
3. Electrical industry: Besides being used as furnace lining in various smelting furnaces, it is also used as a deoxidizing agent in steel smelting, cast iron structure improver, etc.. The chemical composition requirements of black silicon carbide separator are as follows:: Compared with traditional steel making process, in which coke and silicon powder are used for dispersion and deoxidation, The use of a separator has the advantages of good quality steel and favorable working conditions.
4. Other Applications: Electrical industry, Black silicon carbide materials are also widely used as electric heating elements, high temperature semi-superconducting materials, far infrared panels, materials for safety valves, etc..