Why Is Calcium Silicon Used As A Deoxidizer in Steelmaking

Silicon-calcium alloy is a composite alloy material composed mainly of silicon, calcium, iron, and other trace elements. In the steel industry, silicon-calcium alloy is mainly used as a composite deoxidizer and desulfurizer.

Compared with other deoxidizers in steelmaking, the calcium and silicon in the silicon-calcium alloy have a strong affinity for oxygen and also have a strong affinity for sulfur and nitrogen. Therefore, the silicon-calcium alloy is a very suitable composite deoxidizer and desulfurizer.

During steel smelting, with the addition of an appropriate amount of silicon-calcium alloy, in addition to achieving a good deoxidation effect, the deoxidation product produced at the same time is easy to float and easy to discharge, which can quickly and effectively purify the molten steel and improve the quality of the steel.