结合生产实际,通过对转炉出钢后的钢包顶渣加入一定量的改质剂进行改质处理试验,大大降低了钢包顶渣中的FeO含量,降低了钢包顶渣的氧化性,使铝的“回收率”稳定并提高。对减少和稳定钢中Al2O3夹杂起到了有效的控制作用。在冶炼汽车用DQ1J钢时进行该试验,效果良好,目前已纳入正常生产工艺,并在经RH路径进行精炼处理的所有钢种中均已采用钢包顶渣改质处理。 Combined with the actual production, through the converter steel tapping slag after adding a certain amount of modifier modification test, greatly reducing the content of FeO slag ladle top slag, reducing the oxidation of ladle top slag, so that the aluminum “Recovery ” stable and improve. To reduce and stabilize the steel Al2O3 inclusions played an effective control. This test was carried out when smelting DQ1J steel for automotive applications and works well and has now been incorporated into normal production processes and has been modified with ladle top slag in all steel grades refined by the RH route.