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 ›› 2009, Vol. 30 ›› Issue (5): 53-54.

• 工艺技术 • 上一篇    下一篇

中碳硫系易切削钢LF(VD)精炼实践

王 翔,肖  阳,余茂仁,何  勇,夏辉华,周英豪   

  1. 贵阳特殊钢有限责任公司,贵阳 550005
  • 收稿日期:2009-04-10 出版日期:2009-10-01 发布日期:2022-11-18
  • 作者简介:王 翔(1979-),男,助理工程师,2001年贵州工业大学毕业,从事特殊钢冶炼与工艺技术工作。

Practice for LF(VD) Refining of Medium Carbon Sulfur Free-Cutting Steel

Wang Xiang , Xiao Yang , Yu Maoren , He Yong , Xia Huihua , Zhou Yinghao   

  1. Guiyang Special Steel Co Ltd,Guiyang 550005
  • Received:2009-04-10 Published:2009-10-01 Online:2022-11-18

摘要: 中碳硫系易切削钢1141(%:0.37~0.45C、1.20~1.65Mn、0.06~0.12S)和1144(%:0.40~0.48C、1.35~1.65Mn、0.24~0.33S)由65 t Consteel电弧炉-LF(VD)-(150~200)mm×(150~200)mm CC流程生产。LF精炼时喂Al线,控制[Al]0.02%~0.05%,精炼渣CaO/SiO2 2.62~3.02,使精炼中后期渣中硫化物容量达到饱和,在VD处理时吹氩200~250 L/min,≥15 min,使1141钢[S]在VD前后分别为0.11%~0.12%和0.10%~0.12%,1144钢[S]VD前后分别为0.30%~0.33%和0.29%~0.30%,稳定了VD处理前后钢中的硫含量。

关键词: 中碳, 硫系易切削钢, LF(VD)

Abstract: Medium carbon sulfur free-cutting steel 1141 (%:0.37~0.45C,1.20~1.65Mn,0.06~0.12S) and steel 1144 (%:0.40~0.48C,1.35~1.65Mn,0.24~0.33S) are melted by 65 t Consteel EAF-LF(VD)-(150~200) mm ×(150~200) mm CC flow sheet.With feeding Al wire during refining to control [Al] 0.02%~0.05%,end-refining-slag basicity (CaO/SiO2) 2.62~3.02 to keep sulfide capacity in end refining up to saturation state,and blowing argon 200~250 L/min,≥ 15 min during VD process,the [S] of steel 1141 before and after VD is respectively 0.11%~0.12% and 0.10%~0.12%,and the [S] of steel 1144 before and after VD is respectively 0.30%~0.33% and 0.29%~0.30%,therefore the sulfur content in steel before and after VD process is constant.

Key words: Medium Carbon, Sulfur Free-Cutting Steel, LF(VD)