Customized Si3N4 Seal Ring Manufacturers, Suppliers, Factory

Zirconia，with its molecular formula of ZrO2, is the main oxide of zirconium. Natural minerals containing zirconium mainly include incline zircon and zircon and so on. Zirconia is usually a white odorless and tasteless crystal, insoluble in water, hydrochloric acid and dilute sulfuric acid, chemically stable, and features high hardness, high melting point, high resistivity, high refractive index and low thermal expansion coefficient characteristics, has been widely used in wet-resistant ceramics, refractory materials, machinery, electronics, optics, aerospace, biology, chemistry and other fields. Our common artificial drills and dental implants are also based on zirconia as the main material.

Silicon nitride ceramic sealing ring is used to prevent the leakage of fluid or solid particles between adjacent critical interfaces and to prevent impurities or residues from the outside, such as invisible dust and moisture from the parts and components of mechanical equipment. Below we will sum up what should be noted for using silicon nitride ceramic sealing ring.

Silicon carbide ceramic is an ideal material for manufacturing sealing rings. When it is combined with graphite material, its friction coefficient is smaller than that of alumina ceramic and cemented carbide, and its self-lubrication performance is good. Therefore, it can improve the sealing ring’s lifetime and working reliability, especially in the situation of acid and alkali transportation.

Nextgen Advanced Materials (NAM) vows to meet the rising demand of SiC products from the flourishing of new energy vehicle industry.