Silicon carbide is a versatile material with four principal application areas: functional ceramics, advanced refractory materials, abrasives, and metallurgical raw materials. While silicon carbide rough materials can be produced in large volumes, they aren't classified as high-tech products. In contrast, nano-scale silicon carbide powder, which boasts exceptionally high technical content, is not yet viable for large-scale production. In the realm of advanced refractory materials, examples include high-duty refractories like dolomite bricks, mullite bricks, unfired bricks, and low creep bricks, which are essential for various industrial applications.
1. As an abrasive, silicon carbide is indispensable for creating abrasive tools, including grinding wheels, whetstones, grinding heads, and sand tiles, ensuring high precision and durability.
2. In metallurgy, silicon carbide serves as an exceptional deoxidizer and high-temperature resistant material, enhancing the quality and efficiency of metallurgical processes.
3. The high-purity single crystal form of silicon carbide is crucial for manufacturing semiconductors and silicon carbide fibers, paving the way for advanced technological applications.
At present, in China's foundry industry, the use of induction furnace as cast iron smelting equipment foundries are increasing, however, in the smelting process of silicon carbide is very few, can make it play a full role less, our company research modified silicon carbide can improve the metallurgical quality of molten iron, reduce the oxidation of molten iron. In the process of smelting cast iron with intermediate frequency furnace, the accompanying problems such as poor nodularization, less graphite balls, large use of nodularizing agent, more supercooled graphite in gray iron castings, A-type graphite can not meet customer requirements, and processing difficulties follow. This product can effectively improve the metallurgical quality of molten iron, thereby reducing the above problems.
Features:
1. Increase the graphite nucleation core and enhance the graphite nucleation ability. Reduce the subcooling degree of molten iron and reduce the tendency of castings to white.
2. Good deoxidation effect, purify molten iron.
3. Extend the service life of the furnace lining.
4. Reduce the supercooled graphite in gray cast iron and promote the generation of A-type graphite.
5. Adding to ductile iron production can increase the number of graphite balls, improve the nodularization rate, make the graphite balls more round and small, and reduce the amount of nodularizing agent.
The modern method of manufacturing silicon carbide for the abrasives, metallurgical, and refractories industries is basically the same as that developed by Acheson. A mixture of pure silica sand and carbon in the form of finely ground coke is built up around a carbon conductor within a brick electrical resistance-type furnace. Electric current is passed through the conductor, bringing about a chemical reaction in which the carbon in the coke and silicon in the sand combine to form SiC and carbon monoxide gas. A furnace run can last several days, during which temperatures vary from 2,200° to 2,700° C (4,000° to 4,900° F) in the core to about 1,400° C (2,500° F) at the outer edge. The energy consumption exceeds 100,000 kilowatt-hours per run. At the completion of the run, the product consists of a core of green to black SiC crystals loosely knitted together, surrounded by partially or entirely unconverted raw material. The lump aggregate is crushed, ground, and screened into various sizes appropriate to the end use.
Our company offers a diverse range of silicon carbide types to meet various industrial needs and specifications.
| Product name |
Particle size range |
Chemical component/% |
| SiC |
F.C |
Fe2O3 |
| Silicone carbide |
4#-220# |
≥99.00% |
≤0.20% |
≤0.20% |
| 240#-600# |
≥98.50% |
≤0.40% |
≤0.40% |
| 700#-4000# |
≥97.00% |
≤0.60% |
≤0.60% |
| Color |
Green |
| Moh's hardness |
|
| True density |
3.9g/cm3 |
| Melting point |
2250°C |
| Operating temperature |
1900°C |
Huamao (Gansu) New Material Technology Co., Ltd. is a national high-tech enterprise dedicated to the R&D and production of composite ceramics and resistant materials. Established in June 2022, with a registered capital of RMB600 million, the company is strategically located in the Huangmen Industrial Zone, Qingshui County, Tianshui City, Gansu Province, spanning an expansive 400,000 square meters. We boast state-of-the-art production equipment, cutting-edge technology, efficient cost-reducing logistics, comprehensive testing methods, and a scientific management system. Our goal is to solidify our position as a leading industrial base for domestic composite ceramics and resistant materials.
We provide 24H after sales service.
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