What is silicon carbon alloy used for?

High carbon silicon (silicon carbon alloy) is primarily used as a deoxidizer and alloying agent in the metallurgical industry, significantly improving steel quality and reducing production costs.

Specific Applications
1. Deoxidizer
During the steelmaking process, high-carbon silicon reacts with oxygen in the molten steel to form slag, which rises to the surface. This rapidly removes free oxygen from the molten steel, shortening smelting time and improving efficiency. For example, in converter smelting, its deoxidizing effect is superior to traditional materials such as ferrosilicon powder, while also reducing the amount of fluorite used and environmental pollution.

2. Alloying Agent
High-carbon silicon can form compounds with other elements in steel (such as SiAl₂ and SiAl₄), enhancing the steel's strength, hardness, and corrosion resistance. For example, in the aluminum reduction reaction, carbon combines with aluminum to form a Si-Al alloy, optimizing the steel's microstructure.

3. Cost Reduction
It can replace some recarburizers and traditional deoxidizers (such as ferrosilicon and calcium carbide), reducing raw material consumption. For example, the amount of alloying additives per ton of molten steel can be reduced by approximately 30%, while also reducing power consumption and equipment wear, and extending the life of the furnace lining.

4. Environmental Benefits
The CO gas generated during deoxidation using high-carbon silicon reduces fluoride emissions and environmental pollution.

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