Black silicon carbide contains about 95 % SiC and is stronger than green silicon carbide, which is mainly used for processing materials with low tensile strength, including glass, ceramics, stone, refractory materials, cast iron and non-ferrous metals.
Green silicon carbide contains about 97% SiC and is well suited for self-sharpening. It is a popular choice for machining cemented carbide, titanium alloy and optical glass. It is also often used for honing cylinder liners and precision sharpening of high speed steel cutting tools.
Silicon carbide has four main applications: functional ceramics, advanced refractories, abrasives and metallurgical raw materials. It should be noted that raw silicon carbide is available in large quantities and is not considered a high-tech product.
High-carbon silicon carbide has stable physical and chemical properties, excellent deoxidising effect, and can be added to steel water to quickly react with oxygen in steel water, forming steel slag, which rises to the surface of steel water to achieve the deoxidising purpose.
High-carbon silicon is characterised by the following characteristics:
1. High-carbon alloy is an excellent product for ferrosilicon production in steelmaking, providing significant cost savings and resource reuse.
2. High-carbon silicon is a promising type of silicon coal with significant market potential.
3. High carbon silicon is used in steel making as a deoxidiser, reducing the oxygen content in the melt through chemical reaction.
4. High carbon silicon can be processed into balls, powder or granules according to customer specifications.
5. High carbon silicon has high density and purity with minimal contamination of steel.
6. High carbon alloys can maintain high and stable recovery rate and stable performance.
7. High-carbon silicon can reduce the use of alloys, thereby reducing the cost of steelmaking and improving economic efficiency.
8. High-carbon SiS can improve the quality of molten steel and improve the quality and productivity of steel.