What's The Usage Of Carbon Additive

Carbon additive are carbon-containing additives used in the metallurgical industry to adjust the carbon content of molten metal during steel smelting and casting. Their main function is to replenish carbon elements, ensuring the carbon content of steel or cast iron meets process requirements and improving material properties.

Core Functions and Effects

**Adjusting Carbon Content:** During smelting, carbon is lost due to oxidation and other reasons. Carbon additives precisely replenish the carbon content, ensuring the metal composition meets expected standards.

**Improving Material Properties:** Adding carbon additive promotes graphitization and refines grain size, thereby improving the hardness, strength, wear resistance, and other mechanical properties of castings, and reducing defects such as segregation and shrinkage.

**Optimizing Production Processes and Costs:** Using carbon additive can increase the amount of scrap steel used and reduce the proportion of pig iron, thus lowering raw material costs. It also shortens smelting time, improves carbon absorption efficiency, reduces slag volume, and enhances the fluidity of molten metal.

Main Application Areas

Iron and Steel Smelting: Used in steelmaking processes such as converters and electric arc furnaces to adjust the carbon content of molten steel. Suitable for smelting special steels such as high-carbon steel and bearing steel.

Foundry Industry: Widely used in the smelting of cast iron (such as ductile iron and gray cast iron) and cast steel. It improves scrap steel utilization and optimizes the microstructure and properties of castings through synthetic cast iron processes.

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