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High-performance silicon nitride ceramic products are produced using advanced cold isostatic pressing-hot isostatic pressing (HIP) sintering technology, and the material properties have reached the internationally advanced level of similar products. Components combining metal and ceramic are manufactured according to special usage requirements.
Silicon nitride ceramic balls and bearings have the following advantages:
1. Low density, light weight, 59% lighter than steel balls, reducing centrifugal force during bearing operation and thus reducing friction.
2. Low thermal expansion coefficient, 1/4 that of steel, able to withstand temperature fluctuations.
3. Elastic modulus 40% higher than steel, less elastic deformation under load, reducing machine tool vibration.
4. Low coefficient of friction, high temperature resistance, long service life.
5. Non-magnetic, electrically insulating, no adhesion wear.
Mainly used in: high-speed/ultra-high-speed bearings, high-precision bearings, high and low temperature resistant bearings; it can also be used as valve balls and measuring balls in chemical pumps, high-temperature pumps, and metering pumps.
Applications:
01/Ultra-hard and wear-resistant
Characteristics: Ceramic ball bearings have advantages such as high limit speed, good precision retention, small starting torque, high rigidity, good dry running performance, and long life, making them ideal for high-precision, long-time operation under high-speed, high-temperature, corrosive, and radiation conditions.
Applications: Precision machinery industry under harsh working conditions such as high temperature, high vacuum, corrosion, and high speed.
02/High and low temperature resistance
Characteristics: Silicon nitride ceramics have excellent properties such as high temperature resistance, high hardness, high toughness, impact resistance, oxidation resistance, and oil-free self-lubrication.
Applications: Commonly used in casting industry and other high-temperature harsh environments.
03/Corrosion resistance
Characteristics: Silicon nitride ceramics have high-temperature mechanical strength, resistance to aluminum melt corrosion, low thermal expansion coefficient, and non-wetting properties with molten aluminum and other non-ferrous metals, making it an ideal material for aluminum casting risers and other metal castings.
Applications: Aluminum casting parts and consumables.
04/Non-magnetic and electrically insulating
Characteristics: Silicon nitride ceramics have non-magnetic and electrically insulating properties and are also used in products with requirements for gasket strength and sealing.
Applications: Photovoltaic industry, precision electronics field, and aerospace field.
05 High thermal conductivity, low thermal expansion coefficient
Characteristics: Silicon nitride ceramics have high flexural strength, high toughness, long service life, and high and low temperature resistance.
Applications: Automotive, new energy industries.
Key Words
Metal and silicon nitride ceramic hybrid shaft, silicon nitride ceramic components
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