The Calcium particles combine with impurities in the steel to produce surface slag in the blast furnace. 钙颗粒与钢水中的杂质化合后在炼钢炉内形成一层表面炉渣。
Beginning from the thermodynamics condition in the arc furnace and ladle, the anticipated goal was achieved by improving smelt process. 从炼钢炉内和钢包内脱磷热力学条件入不敷出手，对该公司的炼钢现状进行了工艺改进，达到了预期的目的。
