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 ›› 2017, Vol. 38 ›› Issue (3): 5-8.

• 试验研究 • 上一篇    下一篇

2.3t电渣锭重熔过程电极插入深度的数学模型和应用

曲明磊1,成国光1,李世健1,陈列2,严清忠2,梁明2   

  1. 1北京科技大学钢铁冶金新技术国家重点实验室,北京100083 ;
    2西宁特殊钢股份有限公司,西宁810005
  • 出版日期:2017-06-01 发布日期:2022-07-19
  • 作者简介:曲明磊(1991-),男,硕士生,2014年北京科技大学(本科)毕业,电渣重熔过程数值模拟研究。

Mathematical Model of Electrode Immersing Depth in 2.3t Electro-Slag Ingot Remelting Process and Application

Qu Minglei1, Cheng Guoguang1, Li Shijian1 , Chen Lie2, Yan Qingzhong2, Liang Ming2   

  1. 1 State Key Laboratory of Advanced Metallurgy Technology, University of Science and Technology, Beijing 100083;
    2 Xi'ning Special Steel Group, Co Ltd, Xi,ning 810005
  • Published:2017-06-01 Online:2022-07-19

摘要: 利用Fluent软件中的MHD模块模拟得到电渣重熔稳态冶炼条件下不同电极插入深度的渣池电阻值,通过将渣池电阻值与电力制度相联系,建立了电极插入深度的数学模型。在特钢厂2.3t电渣锭重熔稳态冶炼条件下,电极插入深度模型计算值为14.4mm,现场测量值为14mm,相对误差很小,在轴承钢G20CrNi2Mo现有的电力制度(58V,9000A)情况下,维持正常冶炼的最小渣量为24.3kg/t,2.3t电渣锭重熔的合理工艺为电压58V,电流9000A,渣量30kg/t,电极插入深度14.4mm。

关键词: 电渣重熔, 数学模型, 电极插入深度, 电渣阻值, Fluent软件, 应用

Abstract: The value of slag resistance in ESR stable melting condition with different electrode immersing depth is obtained by simulation using MHD ( magneto-hydrodynamics) module of Software Fluent, and the mathematical model of electrode immersing depth is established by relating slag resistance with electric power scheme. In condition of ESR stable smelting of 2.3t ingot at special steelwork, the model calculated value of electrode immersing depth is 14.4mm, as compared with situ measured value 14mm, the relative error is small. With the present electric power scheme- 58V and 9000A for bearing steel G20CrNi2Mo, the minimum slag amount for maintaining normal remelting is 24.3kg/t; the reasonable process for 2.3t ESR ingot is voltage 58V, current 9000A, slag amount 30kg/t and electrode immersing depth 14.4mm.