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 ›› 2010, Vol. 31 ›› Issue (3): 48-49.

• 工艺技术 • 上一篇    下一篇

S系易切削Cr-Ni奥氏体不锈钢精炼工艺的优化和应用

王志刚1,王贤才2   

  1. 1上海理工大学,上海200093;
    2江西渝州科技学院,渝州338000
  • 收稿日期:2009-12-21 出版日期:2010-06-01 发布日期:2022-11-07
  • 作者简介:王志刚(1983-),男,硕士,2006年武汉科技大学毕业,助理工程师,钢铁冶金工艺。

Optimization of Refining Process for S-Series Free-Cutting Cr-Ni Austenite Stainless Steel and Its Application

Wang Zhigang1, Wang Xiancai2   

  1. 1 Shanghai Science and Technology University, Shanghai 200093 ;
    2 Jiangxi Yuzhou Scientific and Technological Institute, Yuzhou 338000
  • Received:2009-12-21 Published:2010-06-01 Online:2022-11-07

摘要: S系易切削奥氏体不锈钢303CuS2(%:≤0.08C、8.00~10.00Ni、17.00~19.00Cr、1.50~3.50Cu、0.24~0.35S)冶炼的工艺为60 t EAF-60 t AOD-60 t LF-CC流程。通过将AOD精炼渣的碱度由原先的2.0降至1.6和控制AOD出钢渣量,AOD出钢的[S]由0.004%~0.006%提高到0.008%~0.010%,并通过喂含S量50%的S线,控制终点温度,使S的回收率由原先的30%~50%提高到60%~70%,产品合格率由85%提高到100%。

关键词: 硫, Cr-Ni奥氏体不锈钢, AOD, LF, 工艺优化

Abstract: S-series free-cutting austenite stainless steel 3O3CuS2 ( % : ≤0. 08C, 8. 00 ~ 10. 00Ni, 17. 00 ~ 19. 00Cr, 1. 50 〜3. 50Cu, 0. 24 - 0. 35S) is smelted by 60 t EAF-60 t AOD-60 t LF-CC flow sheet. With decreasing basicity of AOD refining slag to 1. 6 from original 2. 0 and controlling AOD tapping slag amount, the [ S] in AOD tapping steel increases to 0. 008% ~0. 010% from original 0. 004% - 0. 006% , and with feeding S wire containing 50% S and controling end temperature ,the yield of S increases to 60% - 70% from original 30% ~50% , the qualified ratio of products raises to 100% from 85% .

Key words: Sulfur, Cr-Ni Austenite Stainless Steel, AOD, LF, Process Optimization