Silicon Carbide for Abrasive
Silicon Carbide for Abrasive
Because of its high hardness, chemical stability and certain toughness, silicon carbide abrasive is a very versatile abrasive, mainly used for making grinding wheels, sandpaper, abrasive belts, oil stones, grinding blocks, grinding heads, abrasive pastes and grinding and polishing of single crystal silicon, polysilicon and piezoelectric crystals in photovoltaic products and the electronics industry.
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Advantages and Disadvantages of Silicon Carbide Abrasives
Advantages
- Exceptional hardness and wear resistance
- High thermal conductivity
- Chemical inertness
- Low cost (in the case of black silicon carbide)
Disadvantages
- High cost (in the case of green silicon carbide)
- Brittleness, which can lead to cracking and chipping
- Limited availability in certain sizes and shapes
Applications of Silicon Carbide Abrasives
Grinding and Polishing
Silicon carbide abrasives are commonly used for grinding and polishing hard materials such as metals, ceramics, and glass. They can be used in both wet and dry grinding applications and produce a high-quality finish
Sandblasting
Silicon carbide abrasives are used for sandblasting to remove paint, rust, and other coatings from surfaces. They are effective at removing surface contaminants without damaging the underlying material.
Cutting Tools
Silicon carbide abrasives are used to produce cutting tools such as saw blades and drill bits. They can cut through hard materials such as metals, ceramics, and glass with ease.
Refractory Materials
Silicon carbide is used in the production of refractory materials, which are used in high-temperature applications such as furnace linings and kiln furniture.
Electronic Components
Silicon carbide is used in the production of electronic components such as diodes and transistors. It has excellent thermal conductivity and can withstand high temperatures, making it ideal for use in electronic applications.
Coatings and Surface Treatment
Silicon carbide abrasives are used to produce coatings and surface treatments for metals and other materials. These coatings can improve the durability and wear resistance of the underlying material.
Types of Silicon Carbide Abrasives
Black Silicon Carbide
Black silicon carbide is a widely used abrasive product, with excellent wear resistance, high hardness, high density, low impurities and other advantages, commonly used in sandblasting grinding, polishing, free grinding, making various abrasives, etc.
Green Silicon Carbide
Green silicon carbide is made from quartz sand and petroleum coke refined in a resistance furnace, due to its relatively stable chemical properties, high thermal conductivity, low coefficient of thermal expansion, and good wear resistance.
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