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1.Pictures of silicon nitride ball
2.Descriptions of silicon nitride ball
Advantage:
1.Manufacture silicon nitride balls from 1995.
2.The balls are made by Europen silicon nitride powder.
3.Excellent and stable quality.
4.Plenty of stocks.
Material: silicon nitride ceramic
Size Range: 0.8mm~101.6mm
Grade: G5~G40
Characteristics of silicon nitride ball:
1. High corrosion resistance, which means they can be also used in strong acid, strong alkali and seawater.
2. High temperature resistance. Si3N4 ceramic balls remain the same strength and hardness even in 1100°C.
3. Electrical insulation, non-magnetic, they can also be used in magnetic field.
4. Si3N4 ceramic balls have a low density of 3.26g/cm3. It is approximately 60% lighter than steel balls, which extremely decrease the centrifugal force on the groove, in order to effectively reduce the wear and tear.
5. High rigidity and strength. Compared with chrome steel, Si3N4 ceramic is twice higher in hardness and half higher in elastic modulus value.
6. The coefficient of thermal expansion of Si3N4 is nearly 25% of the chrome steel, which leads to a good thermal shock resistance.
7. The self-lubrication of Si3N4 ceramic ball bearings can help to solve the contamination and inconvenient caused by lubricator, it can also be used in vacuum and high temperature.
8. Low thermal conductivity.
Silicon Nitride Material Properties
Performance Comparison of Structural Ceramics and Ordinary Steel
Grade of silicon nitride ball
3.Application of silicon nitride ball
High precise ceramic bearings, high temperature bearings, vacuum bearings, nonmagnetic bearings, chemical pump, high temperature pump, ceramic valve ball, measure ball.
4.Production line of silicon nitride ball
5.Packaging of silicon nitride ball
6.Information of company
Founded in 1963, Beijing Sinoma Synthetic Crystals Co, LTD.Is a hi-tech state enterprise, belongs to the China National Materials Group Co., Ltd. An excellent technical team headed by the state-level experts has built up,which provides a reliable guarantee for the continuous and rapid technological development.
Advanced ceramic Division (technical center of precision ceramic bearing) is mainly engaged in researching,manufacturing and developing advanced ceramic materials such as Si3N4, ZrO2, Al2O3 and so on.
Main Products:
1). Si3N4 and ZrO2 ceramic balls and rollers.
2). Si3N4 ceramic bearing rings.
3). The whole series full ceramic bearings, hybrid bearings, sliding bearings and shaft sleeves made by Si3N4 and ZrO2 materials.
4). Industrial wear parts made by Si3N4 and ZrO2 materials. According to customer’s application condition and drawings, varios precise and irregular ceramic parts can be designed and fabricated.
7.Welcome to contact us
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