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Silicon carbide is a non-metallic mineral product produced at high temperatures above 1800 degrees Celsius with quartz sand (SiO2) and anthracite or petroleum coke (C) as basic raw materials.It has the characteristics of high hardness, small expansion coefficient, brittleness, good thermal conductivity, etc., widely used in abrasive abrasives, electronic products grinding, refractory materials, special ceramics, foam ceramics, coating plastic addition modification, auto parts, military aviation, steel deoxidizer. The company mainly produces various content specifications of black silicon carbide.
Silicon carbide has four main application areas, namely: functional ceramics, advanced refractory materials, abrasives and metallurgical raw materials. Silicon carbide rough materials can be supplied in large quantities and cannot be considered high-tech products. However, the application of nano-scale silicon carbide powder with extremely high technical content is unlikely to achieve economies of scale in a short time.
Advantages:
Black Silicon Carbide (SiC) is a man made mineral of extreme hardness and sharpness. It is the ideal abrasive for grinding / sanding materials of low tensile strength such as Cast Iron, Brass, Aluminum, Bronze etc. Its thermal properties make it an excellent medium for use in the manufacture of refractory products and crucibles.
Physical And Chemical Analysis:
| Reference Chemical Composition (weight%) of silicon carbide of non-abrasives application | |||||||||
| Type | Reference Chemical Composition (weight %) | Grit Size | |||||||
| SiC(min) | F.C(max) | Fe2O3(max) | |||||||
| TN98 | 98.00 | 1.00 | 0.80 | 0-1mm, 1-3mm, 3-5mm, 5-8mm, 150#, 200#, 325# and as customer's | |||||
| TN97 | 97.00 | 1.50 | 1.00 | ||||||
| TN95 | 95.00 | 2.50 | 1.50 | ||||||
| TN90 | 90.00 | 3.00 | 2.50 | ||||||
| TN88 | 88.00 | 3.50 | 3.00 | ||||||
| TN85 | 85.00 | 5.00 | 3.50 | ||||||
| TN70 | 70.00 | 10.00 | 3.50 | ||||||
| TN60 | 60.00 | 12.00 | 3.50 | ||||||
| TN50 | 50.00 | 15.00 | 3.50 | ||||||
| Black Silicon Carbide Content for Concretion Grinder | |||||||||
| Brand | Grit Size | Chemical Composition(%) | |||||||
| SIC(min) | F.C(max) | Fe2O3(max) | |||||||
| Black silicon carbide | F12-F90 | 98.5 | 0.20 | 0.60 | |||||
| F100-F150 | 98.5 | 0.30 | 0.80 | ||||||
| F180-F220 | 97.0 | 0.30 | 1.20 | ||||||
| Black Silicon Carbide Content for Coating Grinder | |||||||||
| Brand | Grit Size | Chemical Composition(%) | |||||||
| SIC(min) | F.C(max) | Fe2O3(max) | |||||||
| C-P | P12-P100 | 98.0 | 0.25 | 0.70 | |||||
| P120-P150 | 97.5 | 0.35 | 0.90 | ||||||
| P180-P220 | 96.0 | 0.35 | 1.35 | ||||||
| Silicon carbide | SiC | Fe2O3 | F.C. | Relative Density | Melting Point | Micro-Hardness | Mohs' scale of hardness |
| I | >97% | 1.2% Max | <0.3% | 3.2 | 2730 °C | 2840-3320 kg/mm2 | 9 |
| II | >90% | 1.5% Max | <0.5% | 3.2 | 2730 °C | 2840-3320 kg/mm2 | 9 |
| II secondary | >88% | 2.0% Max | <1.0% | 3.2 | 2730 °C | 2840-3320 kg/mm2 | 9 |
| III | >70% | 2.5% Max | <1.5% | 3.2 | 2730 °C | 2840-3320 kg/mm2 | 9 |
| III secondary | >60% | 3.0% Max | <2% | 3.2 | 2730 °C | 2840-3320 kg/mm2 | 9 |
Applications of Silicon Carbide
1. as an abrasive, it can be used as a grinding tool, such as grinding wheel,oilstone,grinding head, sand tile, etc.
2. As a metallurgical deoxidizer andexotic material.
3. High-purity single crystal, which can be used for manufacturing semiconductors and manufacturingsilicon carbide fiber.
4.It can be used as deoxidizer for steelmaking and modifier for cast iron structure, and as raw material for manufacturing silicon tetrachloride.
5.It can be used as high temperature indirect heating material.
6. Anti-wear lubricants, structural coatings, functional coatings, protective coatings, absorbing materials, stealth materials, etc. in the industrial field
7. Glass polishing, rubber tires and other rubber products, high-performance brake pads, product anti-wear lubrication, high-hardness wear-resistant powder coatings;
8. High-performance structural ceramics (such as rocket nozzles, nuclear industry, etc.), which can be used as ceramic knives, cutting tools, measuring tools, molds; special-purpose structural ceramics, functional ceramics, composite ceramics, engineering ceramics;
9. Protective armor for tanks and armored vehicles;
10. Igniter; electric heating element for electrical industry, far infrared generator.
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