The application of silicon carbide in foundry industry.

Silicon carbide for casting can effectively reduce casting costs, by adding silicon carbide particles can prevent carbide precipitation from the ferrofluid, increase the amount of ferrite, reduce the amount of white gouge, and make the structure of cast iron dense, which significantly improves the machining performance and makes the cutting surface of castings smooth. Especially in the process of smelting cast iron, the reasonable use of silicon carbide can effectively increase the graphite core, increase the number of graphite balls in ductile iron, and is very beneficial to improve the graphite shape in cast iron.

• It can effectively eliminate or reduce the tendency of white mouth of castings.
• Improve the organization of cast iron.
• Effectively reduce the sensitivity of cast iron wall thickness, so that the casting of thin and thick sections of the microstructure differences become smaller, narrowing the hardness difference.
• Effectively improve the nucleation of eutectic masses and the number of eutectic masses.
• Make the graphite in cast iron mainly in the form of fine and uniformly distributed a-type graphite, thus improving the mechanical properties of cast iron.
• Reduce production cost and improve production efficiency.