Black silicon carbide 120mesh for SiC ceramic seal ring
Black silicon carbide 120mesh is suitable for the production of SiC ceramic seal rings. 98.5% SiC grains unique performance characteristics, including high hardness wear resistance, corrosion resistance, and excellent high temperature performance. There are several advantages of Black SiC 120mesh for this application:
1. The material has high hardness and good wear resistance.
The Vickers hardness of black silicon carbide material is 2840-3320 kg/mm2. That is higher than industrial ceramic materials such as alumina, zirconium oxide, and aluminum nitride. Therefore, ceramic parts made of silicon carbide can effectively resist wear in mechanical transmission. As a result, the wear resistance of SiC seal rings can be significantly improved and the service life of the sealing rings is longer.
2. High elastic modulus and strong deformation resistance.
Black silicon carbide has high strength, high elastic modulus, can withstand large pressure and load, and has excellent deformation resistance. In the production of silicon carbide seal rings, this characteristic ensure that the sealing rings can remain stable when subjected to high pressure and load without deformation or cracking. Thereby it improves the overall performance and reliability of the equipment.
3. Strong thermal conductivity and high high temperature strength.
The thermal conductivity of silicon carbide is better than that of aluminum oxide and aluminum nitride. When it is made into sealing rings or other mechanical parts, it can resist the heat generated by the friction of parts and the heat conducted by the internal and external environment. It is beneficial to the stability of ceramic parts at high temperatures. In addition, although the toughness and strength of silicon carbide at room temperature are not as good as other ceramic materials. However, at a high temperature above 1200 degrees, the strength of silicon carbide is higher than that of aluminum nitride and zirconium oxide. This is of great significance to application in high temperature environments, such as aerospace and other fields.
4. Excellent chemical inertness and corrosion resistance.
Silicon carbide has strong resistance to acid and alkali corrosion, especially in high temperature environments. Moreover, its chemical stability is better than other engineering ceramic materials. In some corrosive environments, this corrosion resistance can ensure that silicon carbide ceramic sealing rings will not fail due to corrosion, further extending their service life while ensuring the stable operation of the equipment.
5. Low thermal expansion coefficient.
Silicon carbide materials have low thermal expansion coefficients and extremely small volume deformation after heating. That is very helpful in maintaining the sealing performance of the sealing ring.
6. Low specific gravity and high bulk density.
The specific gravity of black silicon carbide is 3.16-3.2g/cm3, which is lower than that of alumina, zirconium oxide, and aluminum nitride. Ceramic parts with low specific gravity can reduce their own load and reduce dynamic pressure. The black silicon carbide particles produced by our company are round and have high bulk density, so that more black silicon carbide materials can play a role in a fixed volume. This is conducive to improving the density of silicon carbide ceramic parts and helping to give full play to the advantages of silicon carbide performance.
Black silicon carbide 120mesh particle size is 90-125um. Due to its excellent performance characteristics, it is very suitable for the production of silicon carbide ceramic sealing rings and can meet various harsh working environment requirements.
