ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2005, Vol. 26 ›› Issue (4): 40-41.

• 工艺技术 • 上一篇    下一篇

汽车用低碳齿轮钢的LF-VD 脱氧工艺

肖爱平,李德胜,雷应华,颜学勇,陈君   

  1. 大冶特殊钢股份有限公司,黄石435001
  • 收稿日期:2005-01-05 出版日期:2005-08-01 发布日期:2023-05-17
  • 作者简介:肖爱平(1971-),男,工程师,1996年华东冶金学院毕业,从事电弧炉冶炼,特殊钢工艺质量研究和新产品开发

Deoxidation Process of Low Carbon Gear Steel for Auto in LF-VD Refining

Xiao Aiping,li Desheng,Lei Yinghua,Yan Xueyong , Chen Jun   

  1. Daye Special Steel Corp Ltd,Huangshi435001

  • Received:2005-01-05 Published:2005-08-01 Online:2023-05-17

摘要: 分析和研究了105炉SCM318H、SCM322H、SCM420KC、SCM822H、SCr420K等汽车用低碳齿轮钢的20tLFVD精炼终渣碱度、终Al含量和真空时间对钢中氧含量的影响。实践操作结果表明,采用白渣操作,控制终渣碱度不低于3,终Al含量≥0.22%、真空处理时间不低于25min,可使低碳齿轮钢的氧含量稳定地≤15×10-6,平均氧含量为11.58×10-6

关键词: 低碳齿轮钢, LF-VD 精炼, 氧含量, 脱氧工艺

Abstract: The effect of end slag basicity, end Al content and vacuum treatment time in 20t LF-VD refining on oxygen content in 105 heats gear steels SCM318H,SCM322H,SCM420K-C, SCM822H and SCr40K for auto has been analyzed and studied. The practice operation results showed that using white slag operation, controlling end slag basicity no less than 3,end Al  content  in steel ≥0.22%, vacuum treatment time ≥25 min, the oxygen content in low carbon gear steel was definite ≤15×10-6,the  average oxygen content in steel was 11.58×10-6