Company Profile
Product Description
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.
Product Parameters
Silicon carbide for steelmaking deoxidation and casting
Silicon carbide is a compound composed of carbon and silicon mainly combined by covalent bonds. It is a non-oxidizing material. Because it exhibits significant instability in high-temperature oxidizing atmospheres, the oxidation reaction proceeds rapidly especially when the temperature exceeds 1627°C. Its characteristics can be used to replace ferrosilicon and carburizing agents in the process of smelting ordinary carbon steel and some low alloy steels in converters and electric furnaces to deoxidize, heat and increase silicon and carbon in molten steel to achieve the purpose of reducing steelmaking costs. , achieved better results. Among them, the most commonly used quality is concentrated at 80%-95%, and the particle sizes are mainly 0-10mm, 0-5mm, 1-3mm, and 1-5mm (mostly used in casting).
Application Direction |
Silicon Carbide |
Description |
Sandblasting and engraving |
black |
generally purchase F36, F46, and the content requirement is about 97.5-98%; for export orders, the content requirement is between 98-98.5%. Such materials have hardness and cleanliness requirements. |
Grinding wheel and sandpaper |
black |
generally 46#-90#, the grinding wheel uses F standard; the sandpaper uses P standard. |
Brake pads |
black |
generally use CF500# and CF600# materials. |
Furnace wall coating |
black |
generally uses 97% 325mesh. |
Abrasives |
Black |
Customers purchase products concentrated in coarser grades than F220, with F46, F60, and F80 performing better. |
Physic Properties |
Color |
Green |
Crystal form |
Polygon |
Mohs hardness |
9.2-9.6 |
Micro hardness |
2840~3320kg/mm² |
Melting point |
1723 |
Maximum operating temperature |
1600 |
True density |
3.21g/cm³ |
Bulk density |
2.30g/cm³ |
Our Advantages
Our company can provide you with silicon carbide products of various purities according to your needs, and 24-hour after-sales service. Our silicon carbide products have a number of inspection certificates for you to inspect. We will also provide you with a free sample. If you have any questions, please contact me in time, I look forward to communicating with you.
FAQ
1. Are you an agent or manufacturer?
We are product manufacturers.
Our company is located in Tianshui City, Gansu Province, China.
2. How does the company guarantee quality?
The sample is always pre-produced before mass production, and the sample is subjected to precise data testing.
3. What can you buy from us?
98% and below black silicon carbide powder or particle size sand
4. Is the price negotiable?
We will provide you with a competitive price quote. For bulk wholesale customers, we will have a certain discount.
5. What services can we provide?
Accepted delivery terms: FOB, EXW, etc
Accepted payment currency: USD, EUR, RMB, etc.
Accepted payment methods: T/T, L/C, D/P D/A, MoneyGram, credit card, PayPal, Western Union;
Spoken languages: English, Chinese.
6. Can you send me a sample? Is it free?
Yes, we would be happy to send you samples.