The theoretical calculations and production data show that the content of SiO_2 in top slags and dissolved aluminum in molten steel were main factors on silicon content of molten steel for low carbon aluminum killed steel.

• 理论计算和实际生产数据表明,对于低碳、铝镇静钢,大包顶渣中SiO_2的浓度和钢水中的酸溶铝含量是控制钢水硅含量的主要因素。