东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (8): 1132-1135.DOI: -

• 材料与冶金 • 上一篇    下一篇

大型板坯电渣重熔过程的脱氧热力学模型

耿鑫,李星,姜周华,李万明   

  1. (东北大学材料与冶金学院,辽宁沈阳110819)
  • 收稿日期:2012-11-20 修回日期:2012-11-20 出版日期:2013-08-15 发布日期:2013-03-22
  • 通讯作者: 耿鑫
  • 作者简介:耿鑫(1979-),男,辽宁本溪人,东北大学讲师,博士;姜周华(1963-),男,浙江萧山人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金青年基金资助项目(51104038);中央高校基本科研业务费国家项目培育种子基金资助项目(N120402008).

Thermodynamics Model of Deoxidation in ESR Process for Large Slab Ingots

GENG Xin, LI Xing, JIANG Zhouhua, LI Wanming   

  1. School of Materials & Metallurgy, Northeastern University, Shenyang 110819, China.
  • Received:2012-11-20 Revised:2012-11-20 Online:2013-08-15 Published:2013-03-22
  • Contact: GENG Xin
  • About author:-
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摘要: 以12Cr2Mo1R钢所用渣系为研究对象,选择Al作为脱氧剂,建立脱氧热力学模型.在不同的Al添加量条件下对12Cr2Mo1R钢熔渣-金属界面处各物质的平衡质量分数进行计算,分析各物质平衡质量分数随Al添加量的变化规律,为在给定Al添加量条件下进行终点成分预报,以及根据钢种成分要求选择Al添加量范围提供理论依据.结果表明,随Al添加量的增加,Si,Mn,Al,Al2O3的平衡质量分数呈上升趋势;SiO2,MnO,FeO的平衡质量分数呈下降趋势.若仅从Si,Mn,Al成分合格的角度考虑,Al的添加量占吨钢的百分比不能超过02%.

关键词: 大型板坯, 电渣重熔, 脱氧, 热力学模型, 12Cr2Mo1R

Abstract: A thermodynamics model for deoxidation in the slag system of 12Cr2Mo1R steel with Al as a deoxidizer was developed. The equilibrium mass fraction of 12Cr2Mo1R steel with different Al additions was calculated at the interface of slagmetal substance. The dependence of the equilibrium mass fraction on the Al additions was investigated, which provided a theoretical basis to the end composition prediction with the given amount of Al and to the limits on the amount of Al according to the composition required by certain steels. The results show that, the mass fractions of Si, Mn, Al and Al2O3 increase with the increasing Al content, while the mass fractions of SiO2, MnO and FeO tend to decrease. Considering the limitation of Si, Mn and Al mass fraction, the amount of Al added in one ton steel should not exceed 02%.

Key words: large slab ingot, ESR (electroslag remelting), deoxidation, thermodynamics model, 12Cr2Mo1R

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