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 ›› 2008, Vol. 29 ›› Issue (6): 7-9.

• 试验研究 • 上一篇    下一篇

AOD冶炼不锈钢氮合金化控制模型的研究和应用

孙铭山,邹勇,范光伟   

  1. 太原钢铁(集团)有限公司技术中心,太原030003
  • 收稿日期:2008-05-12 出版日期:2008-12-01 发布日期:2022-12-05
  • 作者简介:孙铭山(1970-),男,博士,高级工程师,2003年上海大学毕业,不锈钢的冶炼、连铸和轧制工艺技术研究及不锈钢产品开发。

Study and Application on Nitrogen Alloying Control Model for Stainless Steel Refining by AOD Process

Sun Mingshan, Zou Yong , Fan Guangwei   

  1. Technology Center, Taiyuan Iron and Steel ( Group) Co, Taiyuan 030003
  • Received:2008-05-12 Published:2008-12-01 Online:2022-12-05

摘要: 根据氮在钢中的溶解热力学和脱除动力学理论,建立了AOD精炼氮合金化的控制模型。经45 t AOD装置精炼0Cr19Ni9N不锈钢(%:≤0.08C、18~20Cr、8~11Ni、0.10~0.16N)的应用结果表明,模型计算值与实测值吻合良好,可通过AOD氮气溶解和氩气脱除,精确控制不锈钢的N含量。

关键词: AOD, 氮合金化, 控制模型

Abstract: Based on theory of solubility of nitrogen in steel and de-nitriding kinetics, the control model of nitrogen alloying during AOD refining has been established. The application results for refining stainless steel 0Crl9Ni9N (≤0. 08C, 18 ~20Cr, 8 ~ 11Ni, 0. 10 ~0. 16N) by a 45 t AOD unit showed that it was available to accurately control N content in stainless steel by solubility of nitrogen and de-nitriding in AOD process and the data calculated by model nicely conformed to real measured data in production.

Key words: AOD, Nitrogen Alloying, Controlling Model