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 ›› 2007, Vol. 28 ›› Issue (5): 58-59.

• 工艺技术 • 上一篇    下一篇

碳偏析和残余B对20CrMnTiH1齿轮钢淬透性的影响

陶建军,朱惠刚,吴小林   

  1. 江阴兴澄特种钢铁有限公司,江阴 214432
  • 收稿日期:2007-03-20 出版日期:2007-10-01 发布日期:2023-02-15
  • 作者简介:陶建军(1967-),男,工程师,1988年毕业于上海工业大学冶金系,从事工艺质量技术管理工作。

Effect of Carbon Segregation and Residual B on Hardenability of Gear Steel 20CrMnTiH1

Tao Jianjun , Zhu Huigang , Wu Xiaolin   

  1. Jiangyin Xingcheng Special Iron and Steel Co.,Ltd., Jiangyin 214432
  • Received:2007-03-20 Published:2007-10-01 Online:2023-02-15

摘要: 试验分析了电磁搅拌电流对20CrMnTiH1齿轮钢180 mm×180 mm连铸坯碳偏析的影响以及精炼和连铸工序钢中残余B含量及其变化对钢淬透性的影响。结果表明,电磁搅拌电流从200 A降至100 A时,铸坯碳偏析指数降低0.1;控制钢中残余B≤0.000 2%,可使20CrMnTiH1齿轮钢淬透性带宽≤4 HRC。

关键词: 20CrMnTiH1齿轮钢, 残余B, 碳偏析, 淬透性

Abstract: The effect of magnetic stirring current on carbon segregation of 180 mm×180 mm cast billet of gear steel 20CrMnTiHl and the effect of change of residual B content in steel during refining and casting on hardenability of steel have been tested and analyzed. Results showed that as magnetic stiring current decreased from 200 A to 100 A,the carbon segregation index of cast billet decreased by 0.1;with controlling residual B in 20CrMnTiHl steel≤0.0002%,the hardenability band width of steel was ≤ 4 HRC.

Key words: Gear Steel 20CrMnTiH1, Residual B, Carbon Segregation, Hardenability