Silicon carbide is a non-metallic mineral product produced by quartz sand and anthracite or petroleum coke at a high temperature above 1800 ℃. It is an important raw material widely used in metallurgical deoxidation, production of refractory products, electronics, machinery, mold manufacturing and other industries. Silicon carbide (SIC) deoxidizer is a new type of strong composite Deoxidizer, which replaces the traditional silicon powder and carbon powder for deoxidation. Compared with the original process, the physical and chemical properties are more stable, the deoxidation effect is good, the deoxidation time is shortened, the slag is formed early, the reducing atmosphere is thick, the energy is saved, the steelmaking efficiency is improved, the quality is improved, the consumption of raw and auxiliary materials is reduced, the environmental pollution is reduced, and the labor conditions are improved It is of great value to improve the comprehensive economic benefits of electric furnace. In addition, it is widely used in high-grade refractory brick, nozzle, electronic board, etc.
Benefits of SiC:
1. Silicon and carbon sources with high quality and low price.
2. It has the following effects on the melting of ductile iron
A. Strong deoxidation can reduce the amount of nodularizing agent
B. It is beneficial to increase the content of ferrite by preventing carbide precipitation
C. Improve nodular iron.
3. The service life of furnace wall can be extended by 30%
4. The production of slag is reduced and the operation of slag removal is simple
5. Rusty scrap and alloy can be used to reduce the cost of hot metal
6. It can reduce the white mouth, improve the machinability and mechanical properties significantly
7. Increase fluidity, stabilize the composition of hot metal and prevent segregation
8. Reduce the sensitivity of wall thickness, compact structure, smooth cutting surface
9. Like ferrosilicon, there is no need to worry about the aluminum content in molten iron
10. No need to worry about the increase of sulfur in hot metal