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 ›› 2017, Vol. 38 ›› Issue (4): 32-34.

所属专题: 模具钢

• 工艺技术 • 上一篇    下一篇

冷作模具钢Crl2MoV 40 t EAF-LF.VD-模铸冶炼工艺优化实践

梁新腾1,2, 谢珍勇3, 孙彦辉1, 王建2, 蔡武3   

  1. 1北京科技大学冶金与生态工程学院,北京100083 ;
    2攀钢集团研究院有限公司,成都611731;
    3攀钢集团江油长城特殊钢有限公司,江油621701)
  • 收稿日期:2017-02-10 出版日期:2017-08-01 发布日期:2022-07-20
  • 作者简介:梁新腾(1978-),男,博士研究生(北京科技大学),2007年内蒙古科技大学(本科)毕业,铁水预处理、转炉炼钢、电炉 炼钢等相关研究。

Process Optimization Practice of 40 t EAF-LF-VD-Mould Casting Steelmaking for Cold-Working Die Steel Crl2MoV

Liang Xinteng1,2, Xie Zhenyong3, Sun Yanhui1, Wang Jian2 , Cai Wu3   

  1. 1 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ;
    2 Pangang Group Research Institute Co Ltd, Chengdu 611731 ;
    3 Changcheng Special Steel Co Ltd, Pangang Group, Jiangyou 621701
  • Received:2017-02-10 Published:2017-08-01 Online:2022-07-20

摘要: 通过将低碱度(2.6)CaO-Al2O3-SiO2渣系优化成(≥5.0)高碱度CaO-Al2O3-SiO2-CaF2渣系,LF前钢中[Als]由0.02%0.03%提高至≥0.06%,将原大气浇铸改进为箱式Ar保护浇铸,3 t锭身浇铸时间由68 min优化成45 min等工艺措施,使Cr12MoV冷作模具钢[O]≤18×10-6,[S]≤0.005%,综合成材率由74.35%提高至80.12%。

Abstract: With using the process measures including modifying the low basicity (2. 6) CaO-Al2O3 -SiO2 slag series to high basicity ( ≥5. 0) CaO-Al203-SiO2-CaF2 slag series, increasing the [Als] in steel before LF refining from 0. 02% ~ 0. 03% to M 0. 06% , improving the atmosphere casting to box type Ar shielding casting and improving the 3t ingot body casting time from 6 ~8 min to 4 ~5 min, the [O] and [S] in cold-working die steel Cr12MoV are respectively [O]≤ 18 X 10-6 and [S]≤ 0. 005% , and the comprehensive products yield increases from 74. 35% to 80. 12%.