南京钢铁厂于1985年开始采用复吹技术,1985～1987年由于气源问题未解决,复吹钢比一直在10％以下。从1988年起,该厂具备了氩气气源,使3座转炉都实现了复合吹炼,复吹钢比逐年上升。1990年计划复吹钢比为90％,实际达到91.26％。目前,该厂的转炉全部采用氮氩切换,底吹气量为0.01～0.10m~3/min·t,分三级控制, Nanjing Iron and Steel Plant in 1985 began to use double blowing technology, 1985 to 1987 due to gas problems are not resolved, double blowing ratio has been below 10%. Since 1988, the plant has a source of argon gas, so that the three converters have achieved a compound blowing, the ratio of complex blowing increased year by year. In 1990, the ratio of blow-up steel was planned to be 90%, actually 91.26%. At present, all the converters in the plant use nitrogen and argon switching, the bottom blowing volume of 0.01 ~ 0.10m ~ 3 / min · t, divided into three levels of control,