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Silicon nitride grinding ball

Silicon nitride grinding ball

The application value of silicon nitride milling media balls not only lies in their excellent mechanical performance and chemical properties, but also in their extremely low wear and excellent performance-to-price ratio. The wear resistance and corrosion resistance of the silicon nitride ceramic material enable it to maintain its performance for a long time, and its excellent performance-to-price ratio also makes it an ideal substitute for other grinding media materials.

【Technical Parameters】

Density: 3.21g/cm3

Mohs hardness: 9.3

Flexural strength Mpa: 750-1000 Mpa

Microhardness HV10: 1500-1700

Fracture toughness MPa·m1/2: 7-8

Elastic modulus GPa: 310

Self-wear rate/24h: 0.001%
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Detail

Silicon nitride (Si3N4) ceramics are inorganic nonmetallic materials whose structural units are tetrahedrons, with each silicon atom at the center of the tetrahedron and each tetrahedron with four nitrogen atoms at its four vertices. These tetrahedrons share one silicon atom every three to form a continuous and robust network structure in three dimensions. This special structure gives silicon nitride many excellent properties, especially structural stability at high temperatures.


氮化硅研磨球


In the production of silicon nitride powder, silicon nitride grinding ball is an indispensable grinding medium and has been widely used. However, its use is far more than that, in the powder industry, silicon nitride grinding ball has good application value and a wide range of applications.


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Main properties of silicon nitride (si3n4) ceramic grinding ball


The silicon nitride grinding ball has higher hardness and better wear resistance than the grinding ball of zirconia and alumina. The color of the silicon nitride grinding ball produced by our company is black and gray, and the shape is ball and column. Because of its very low consumption, the pollution of the grinding machine is greatly reduced. Silicon nitride (Si3 n 4) ceramic material has high hardness, high melting point, stable structure, high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic, insulation, oil-free self-lubrication and other characteristics, in addition to hydrofluoric acid, it does not react with other inorganic acids, strong corrosion resistance, high temperature oxidation resistance.