第34卷第6期 ?4?2013年12月 特殊钢 SPECIAL STEEL V01.34.No.6 Deeeml)er 2013 150 t RH精炼终点钢水酸溶铝含量的控制 李双江1 胡志刚1 杨晓江2 张士宪3 李 杰1 (1河北钢铁技术研究总院,石家庄050000;2河北钢铁集团唐钢第一钢轧厂,唐山063016; 3河北工业职业技术学院材料工程系,石家庄050091) 摘要在参考80炉次SPHD、SPHE和IF钢生产数据的基础上,采用多元线性回归分析建立了用Al脱氧的 RH精炼终点钢水酸溶铝含量一[Als]的计算模型,分析了RH脱碳结束时钢水氧活度、脱氧加铝量和钢水净循环时 间对终点钢水酸溶铝含量的影响。结果表明,RH脱碳结束钢水氧活度、脱氧加铝量是影响终点钢水酸溶铝含量的 重要因素;当RH脱碳后钢水温度、氧活度、炉渣中FeO+MnO含量一(FeO+MnO)以及钢水的净循环时间分别在 1 600 oC、2×10~、15%和8 0.86一I.53 kg/t。 rain时,要控制终点钢水酸溶铝为0.02%~0.05%须在RH脱氧过程中控制加铝量 关键词150 t RH精炼钢中酸溶铝含量控制计算模型 Control of Acid Soluble Aluminium Content in Molten Steel at End of 150 t RH Refining Li Shuangjian91,Hu Zhigan91,Yang Xiaojian92,Zhang Shixian3 and Li Jiel (1 Hebei Iron and Steel Technology Research Institute,Shijiazhuang 050000; 2 N01 Steel Rolling Mill,Tangshan Iron and Steel Co,Hebei Iron and Steel Group,Tangshan 063016; 3 Dept of Material Engineering,Hebei Institute of Vocational Technique,Shijiazhuang 050091) Abstract Based on referential production data of 80 beats of SPHD.SPHE and IF steel.a calculation model for acid soluble aluminium content in molten steel.i Als 1 at end of RH refining deoxidizing by Al iS established by using multiple linear regression analysis and the effect of activity of oxygen in liquid,adding aluminium for deoxidation and net circulation time of liquid at end of RH decarbonizing on end Als iS analyzed.Results show that the RH deearburization end activity of oxygen in liquid and adding aluminium amount for deoxidation are main factors to influenee the end Ats};as after RH decarburization the liquid temperature。activity of oxygen,FeO+Mn0 content in slag