,788 北京科技大学学报 第29卷 [2]汪开忠。低碳高铝钢钙处理工艺及对钢中夹杂物的影响。钢 [们]陈家祥。炼钢常用图表数据手册，北京：冶金工业出版社， 铁研究，2005(3)：38 1984.413 [3]孙硕猛·钙处理对钢中夹杂物性质影响的实验研究钢铁研 [7]陈家祥.连续铸钢手册.北京：冶金工业出版社，1991：31 究，2006(4)：21 [8]张鉴·冶金熔体的计算热力学.北京：冶金工业出版社，1998： [4]许中波.钙处理钢水中非金属夹杂物的形态，北京科技大学 254 学报.1995,17(2)：125 [9]贺道中.含铝钢水的钙处理.钢铁研究，2002(6)：13 [⑤]国际钢铁协会.洁净钢洁净钢生产工艺技术。北京：治金工 [1O]袁晓鹏.转炉一ANS一连铸工艺生产低碳铝镇静钢洁净度研 业出版社，2006.38 究.钢铁，2003(11)：15 Effect of calcium treatment on the cleanliness of low carbon cold heading steel GAO Zhenbo,LIANG Haiqing,WU Jian),HU Yigui),LI Song),DU Songlin2) 1)No.3 Steel Making and Rolling Combination Mill,Masteel.Maanshan 243000.China 2)Metallurgical and Ecological Engineering School,University of Science and Technology Beijing.Beijing 100083,China ABSTRACI The calcium content for inclusion distortion and the formation condition of sulfuric calcium in cal- cium treatment were calculated by thermodynamics method.The maximum content of sulfur after LF treatment and the minimum content of calcium after calcium treatment were determined.The effect of temperature and amount of feeding calcium on the yield of calcium and the relation between the soft argon blowing time after cal- cium treatment and the loss of calcium and aluminum were investigated.Based on calculation and experimental data,the process of calcium treatment was optimized,and the mass fraction of sulfur in steel after LF treatment is no more than 0.007%.For each heat,feeding 100-200m calcium line and blowing soft argon for 25 minutes after calcium feeding,the percent of pass of inclusions in the cold heading steel can reach up to92. KEY WORDS cold heading steel;calcium treatment;soft argon blowing;cleanliness;inclusions［2］ 汪开忠．低碳高铝钢钙处理工艺及对钢中夹杂物的影响．钢 铁研究‚2005（3）：38 ［3］ 孙硕猛．钙处理对钢中夹杂物性质影响的实验研究．钢铁研 究‚2006（4）：21 ［4］ 许中波．钙处理钢水中非金属夹杂物的形态．北京科技大学 学报‚1995‚17（2）：125 ［5］ 国际钢铁协会．洁净钢—洁净钢生产工艺技术．北京：冶金工 业出版社‚2006：38 ［6］ 陈家祥．炼钢常用图表数据手册．北京：冶金工业出版社‚ 1984：413 ［7］ 陈家祥．连续铸钢手册．北京：冶金工业出版社‚1991：31 ［8］ 张鉴．冶金熔体的计算热力学．北京：冶金工业出版社‚1998： 254 ［9］ 贺道中．含铝钢水的钙处理．钢铁研究‚2002（6）：13 ［10］ 袁晓鹏．转炉—ANS—连铸工艺生产低碳铝镇静钢洁净度研 究．钢铁‚2003（11）：15 Effect of calcium treatment on the cleanliness of low carbon cold heading steel GAO Zhenbo 1）‚LIA NG Haiqing 1）‚W U Jian 1）‚HU Y igui 1）‚LI Song 1）‚DU Songlin 1‚2） 1） No．3Steel Making and Rolling Combination Mill‚Masteel‚Maanshan243000‚China 2） Metallurgical and Ecological Engineering School‚University of Science and Technology Beijing‚Beijing100083‚China ABSTRACT The calcium content for inclusion distortion and the formation condition of sulfuric calcium in cal￾cium treatment were calculated by thermodynamics method．The maximum content of sulfur after LF treatment and the minimum content of calcium after calcium treatment were determined．The effect of temperature and amount of feeding calcium on the yield of calcium and the relation between the soft argon blowing time after cal￾cium treatment and the loss of calcium and aluminum were investigated．Based on calculation and experimental data‚the process of calcium treatment was optimized‚and the mass fraction of sulfur in steel after LF treatment is no more than0∙007％．For each heat‚feeding100—200m calcium line and blowing soft argon for25minutes after calcium feeding‚the percent of pass of inclusions in the cold heading steel can reach up to92％． KEY WORDS cold heading steel；calcium treatment；soft argon blowing；cleanliness；inclusions ·788· 北 京 科 技 大 学 学 报 第29卷