Black silicon carbide powder uses

Black silicon carbide powder is a type of silicon carbide abrasive and is generally black in color. What are the uses of black silicon carbide powder?

Sic powder introduction

1. Szilícium-karbid is also called moissanite. It can be called emery sand or refractory sand. Black silicon carbide has a metallic luster, contains more than 95% Sic, and is stronger than green silicon carbide, but has lower hardness. It is mainly used for grinding cast iron and non-metallic materials.
2. The industrial production method of silicon carbide is to use high-quality quartz sand and petroleum coke to be refined in a resistance furnace. The silicon carbide blocks obtained are made into products of various particle sizes through crushing, acid and alkali washing, magnetic separation, and screening or water separation.
3. A fekete szilícium -karbid tartalmaz 98.5% Sic, és keménysége magasabb, mint a zöld szilícium karbid. Leginkább alacsony szakítószilárdságú anyagok feldolgozására használják. Silicon carbide is very hard and has excellent thermal conductivity. It is a semiconductor. At high temperatures, Can resist oxidation.
4. Stabil kémiai tulajdonságainak köszönhetően, magas hővezető képesség, kicsi hőtágulási együttható, És a jó kopásállóság, black silicon carbide has many other uses besides being used as an abrasive. It is used to make high-grade refractory materials that are thermal shock resistant and small in size. , lightweight and high strength, good energy saving effect.

Uses of black silicon carbide powder

1. Abrasives: Black silicon carbide in foreign light industries are mainly used as abrasives. Because black silicon carbide has a high attitude and certain toughness, it is mostly used for grinding and polishing optical glass, cemented carbide, titanium alloy and bearing steel, sharpening high-speed steel tools, stb.; black silicon carbide is mostly used for cutting. and grinding materials with low tensile strength.
2. Refractory material: Black silicon carbide has good thermal shock resistance, so it is a high-quality refractory material. According to the production 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 the binding agent, stb. The main products and uses are high-temperature furnace components and supports.
3. Electrical smelting industry: In addition to being used as furnace linings in various smelting furnaces, it is also used as a deoxidizer for steelmaking, a structural improver for cast iron, stb. The chemical composition requirements of the release agent black silicon carbide are: Compared with the traditional steelmaking process that uses coke and silicon powder for dispersion and deoxidation, the use of a release agent has the advantages of good steel quality and a good working environment.
4. Other fields: Electrical industry, black silicon carbide materials are also widely used as electric heating elements, high-temperature semi-superconductor materials, far-infrared panels, arrester valve materials, stb.