通过RH超低碳钢脱碳工业试验,对RH精炼过程工艺参数进行全程跟踪.重点对表观脱碳速率常数Kc进行了测定和评价.结果表明,RH脱碳过程分为3个阶段:抽真空阶段、吹氧脱碳阶段和自然脱碳阶段.稳定生产碳含量小于0.002％(质量分数,下同)的超低碳钢的优化工艺参数为:进站碳含量0.05％～0.06％,氧含量0.04％～0.06％；吹氧期的起始真空度12～15 kPa,吹氩强度0.015m3·t-1·min-1;自然脱碳时间大于15 min,吹氩强度0.015m3·t-1·min-1,终脱氧前的氧含量＜0.035％.
参考文献
| [1] | Yano M;Kitamura S;Harashima K et al.Recent Advances in Ultra Low-Carbon Steel Refining Technology by Vacuum Degassing Processes[J].NIPPON STEEL TECHNICAL REPORT,1994,61:15. |
| [2] | Sumida N;Fujii T;Oguchi Y et al.Production of Ultra-Low Carbon Steel by Combined Process of Bottom-Blown Converter and RH Degasser[J].Kawasaki Steel Technical Report,1983,15(08):69. |
| [3] | Kameyama K;Nishkawa H .Mass Production of Ultra-Low Carbon Steel by KTB Method Using Oxygen Top Blowing in Vacuum Vessel[J].Kawasaki Steel Technical Report,1992,24(06):92. |
| [4] | 李大明,张文辉,林立平,刘良田.RH顶吹氧技术在武钢第二炼钢厂的应用[J].炼钢,2007(06):5-9. |
| [5] | 刘柏松,李本海,朱国森,陈斌,崔爱民,李焕喜.常规RH和RH-TOP工艺精炼IF钢试验研究[J].钢铁,2010(08):33-38. |
| [6] | Kishimoto Y;Yamaguchi K;Sakuraya T et al.Decarburization Reaction in Ultra-Low Carbon Iron Melt Under Reduced Pressure[J].ISIJ International,1993,33(03):391. |
| [7] | Yoshiei Kato;Tadasu Kirihara;Tetsuya Fujii .Analysis of Decarburization Reaction in RH Degasser and Its Application to Ultra-low Carbon Steel Production[J].Kawasaki Steel Technical Report,1995(32):25-32. |
| [8] | Ahn S B;Choi H S;Kim J S.Oxygen Blowing Technology for Production of Ultra-Low Carbon Steel on RH Degasser[A].USA:Iron and Steel Society,1998:3. |
| [9] | 肖玖伦,姚同路,邱丹,王刚.IF钢的RH-KTB工艺优化[J].钢铁,2010(12):34-36,40. |
| [10] | 刘渊,刘文全.RH-KTB真空吹氧脱碳与二次燃烧的热力学[C].东北大学学报(自然科学版)(第19卷增刊),1998:13～16. |
| [11] | 周鉴,彭明耀,王仕华,彭其春,陈永金,周飞.RH-MFB生产超低碳钢的工艺优化[J].炼钢,2009(01):17-20. |
| [12] | 赵云珠.本钢RH生产超低碳钢过程碳成分控制实践[C].2008年全国炼钢—连铸生产技术会议论文集,2008:313-317. |
| [13] | Kang Soo-Chang;KIM Kwang-Chun .RH炉内脱碳反应及氧行为特征[J].钢铁,1999,34(增):352. |
| [14] | Shigeru Inoue .Acceleration of Decarburization in RH Vacuum Degassing Process[J].ISIJ International,1992,32(01):120. |
| [15] | Kuwahara Tatsuro;Umezawa Kazusige;Mori Kouji et al.Investigation of Decarburization Behavior in RH-Reactor and Its Operation Improvement[J].Transactions of the Iron and Steel Institute of Japan,1988,28(04):305. |
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