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 ›› 2015, Vol. 36 ›› Issue (1): 38-40.

• 工艺技术 • 上一篇    下一篇

氩气保护气氛对电渣重熔过程1Cr18Ni9Ti钢钛烧损的影响

邓鹏辉1,周立新2, 潘明旭1,张洲1   

  1. 1大冶特殊钢股份有限公司1炼钢事业部;
    2高品质特殊钢湖北省重点实验室,黄石435001
  • 收稿日期:2014-08-25 出版日期:2015-02-01 发布日期:2022-08-30
  • 作者简介:邓鹏辉(1988-),男,工程师,2011年江西理工大学(本科)毕业,特种冶炼工艺技术研究。

Effect of Argon Shielding Atmosphere on Burning Loss of Titanium in Steel lCrl8Ni9Ti in Electro-Slag Remelting Process

Deng Penghui1, Zhou Lixin2, Pan Mingxu1, Zhang Zhou1   

  1. 1 Steelmaking Division,
    2 Hubei Province Key Laboratory of High Quality Special Steel, Daye Special Steel Co Ltd, Huangshi 435001
  • Received:2014-08-25 Published:2015-02-01 Online:2022-08-30

摘要: 进行常规大气条件1.2 t电渣炉和氩气保护气氛5.0 t电渣炉重熔1Cr18Ni9Ti奥氏体不锈钢[/%:0.05~0.09C,17.13~18.24Cr,9.73~10.6Ni,5×(C-0.02) ~0.80Ti]的生产试验,分析氩气保护气氛对钢中钛烧损的影响。结果表明,在70CaF2-30Al2O3二元提纯渣配加5.0%TiO2的条件下,常规大气条件1.2 t电渣重熔锭平均钛烧损率为48.33%;氩气保护气氛5.0 t电渣重熔锭平均钛烧损率为2.61%;同时5.0 t电渣炉重熔时除用氩气保护气氛外采用同钢种底垫固渣引燃,钢锭底部涨[C]现象得到明显改善。

关键词: 电渣重熔, 固渣引燃, TiO2, 氩气保护, 钛烧损

Abstract: The pilot production of austenite stainless steel 1Cr18Ni9Ti [/%: 0. 05 ~0. 09C, 17. 13 ~ 18. 24Cr, 9. 73 ~ 10. 6Ni, 5 X (C-0. 02) ~0. 80Ti] remelting by 1. 2 t electro-slag furnace in normal atmospheric gas and by 5. 0 t electro-slag furnace in argon shielding atmosphere is carried out to analysis the effect of argon shielding atmosphere on titanium burning loss of titanium in steel in electro-slag remelting (ESR) process. Results show that with the condition of using 70CaF2-30Al2Obinaiy purifying slag and adding 5. 0% TiO2, for 1. 2 t ESR ingot remelting in normal atmospheric gas the average titanium burning rate is 48. 33%, and for 5. 0 t ESR ingot remelting in argon shielding atmosphere the average titanium burning rate is 2. 61%; while remelting in 5. 0 t ESR furnace beside with argon shielding atmosphere, also with using same steel grade bottom pad and solid slag igniting the phenomenon of picking up carbon in bottom of ingot is obviously improved.