Refined Silicon Carbide for Foundry Use

As an efficient clay sand casting material and cast iron auxiliary material, this foundry silicon carbide (SiC) plays a key role in deoxidation, carburization, and grain refinement in cast iron casting due to its high hardness and high thermal conductivity. The product has high purity (SiC content ≥95%) and uniform particle size (20-80 mesh optional). When used in synergy with foundry compound sand and foundry sodium bentonite, it can improve the high-temperature erosion resistance of the sand mold; when compounded with foundry coal powder, it can optimize the surface finish of castings; and when used with foundry starch, it can reduce the adhesion between the sand mold and castings. During the cast iron smelting process, adding this product (addition amount 0.2%-0.5%) can effectively remove oxygen and sulfur impurities in the molten iron, reduce the defect rate of casting pores and slag inclusions, and at the same time improve the hardness and wear resistance of castings (hardness inc…