【摘要】 主要研究稀土镁硅合金替代铝条应用于沸腾钢浇注的化学封顶工艺；分析了浇注工艺的可行性。由于应用该工艺钢材质量提高幅度很大，为稀土在钢中应用开辟了新的途径。更多还原

【Abstract】 In the paper the use of Rare EarthMgSi alloy for rimming steel coping is studied instead of aluminium. The industrial test has proved that the cost is reduced, the steel quality is improved. It is a new application of RE in metallurgy.更多还原