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 (5): 4-6.

• 试验研究 • 上一篇    下一篇

360 mm x 450 mm方坯连铸结晶器电磁搅拌的数值模拟

陈永1,2, 朱苗勇1, 任兵芝1   

  1. 1. 东北大学材料与冶金学院,沈阳 110004 ;
    2. 攀枝花钢铁研究院材料所,攀枝花 617000;
  • 收稿日期:2008-03-05 出版日期:2008-10-01 发布日期:2022-12-27
  • 作者简介:陈永(1969-),男,博士生,教授级高工,1990年东北大学毕业,连铸工艺及铸坯质量控制技术研究。

Numerical Simulation for Electromagnetic Stirring of Mold for 360 mm x 450 mm Bloom Concasting

Chen Yong1,2 , Zhu Miaoyong1 , Ren Bingzhi1   

  1. 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004;
    2. Department of Material Research, Panzhihua Iron and Steel Research Institute, Panzhihua 617000;
  • Received:2008-03-05 Published:2008-10-01 Online:2022-12-27

摘要: 根据麦克斯韦电磁理论,建立了360 mm×450 mm方坯连铸结晶器电磁旋转搅拌的数学模型,分析了结晶器内电磁场、电磁力的分布特征以及电流(300~700 A)、搅拌频率(2.0~3.0 Hz)对电磁场和电磁力的影响。结果表明,旋转磁场在结晶器搅拌区域内产生电磁力,使钢液在水平方向形成旋转流动;磁感应强度与搅拌电流成线性关系,在低频率搅拌条件下频率对电磁搅拌强度的影响较小。

关键词: 大方坯连铸, 结晶器电磁搅拌, 磁场, 数值模拟

Abstract: According to Maxwell electromagnetic field theory a mathematical model for simulating the mold electromagnetic rotary stirring for 360 mm x 450 mm bloom concasting has been established to analyze the distribution characteristics of magnetic flux density and electromagnetic stirring force, and the effect of current strength (300-700 A) and stirring frequency (2.0-3.0 Hz) on flux density and stirring force. Results show that the rotary magnetic field can generate the electromagnetic force in mold to make molten steel whirling at horizontal section ; the relation between magnetic flux intensity of induction and stirring current is linearity, and with lower stirring frequency the effect of frequency on electromagnetic stirring intensity is slight.

Key words: Bloom Concasting, Mold Electromagnetic Stirring, Magnetic Field, Numerical Simulation