东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (10): 1432-1436.DOI: -

• 论著 • 上一篇    下一篇

连铸结晶器电磁搅拌参数对磁场分布的影响

张静;王恩刚;邓安元;赫冀成;   

  1. 东北大学材料电磁过程教育部重点实验室;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-10-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50834009)

Effects of mold EMS parameters on distributions of magnetic induction and electromagnetic force during continuous casting

Zhang, Jing (1); Wang, En-Gang (1); Deng, An-Yuan (1); He, Ji-Cheng (1)   

  1. (1) Key Laboratory of National Education Ministry for Electromagnetic Processing of Materials, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-10-15 Published:2013-06-20
  • Contact: Zhang, J.
  • About author:-
  • Supported by:
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摘要： 结合连铸过程的实际情况,采用现场实测与数值模拟的方法,研究了连铸Φ250mm圆坯结晶器电磁搅拌电流和频率对磁感应强度和电磁力分布的影响.研究结果表明,数值模拟计算值与现场实测数据基本一致;当电流相同时,随着频率的增加,磁感应强度减小;沿着结晶器方向,电磁力随着频率的增加而增加,且随着频率的增加,最大电磁力增加量减小,但在搅拌器中心对应的径向上,随着频率的增加,电磁力减小;当频率相同时,随着电流强度的增加,钢液内的磁感应强度和电磁力都增加.结合数值模拟的具体结果,电磁搅拌电流和频率为480A,3Hz时,能起到良好的搅拌效果.

关键词: 磁场, 电磁搅拌, 磁感应强度, 电磁力, 数值模拟

Abstract: A numerical simulation in combination with in-situ measurement was conducted according to the actual continuous casting process for the M-EMS(mold-electromagnetic stirring) behavior of Φ250 mm bloom. The effects of EMS current and frequency on the distributions of magnetic induction and electromagnetic force were then investigated. The results showed that the simulated results conform basically with the measured data. With the current kept constant and frequency increased, the magnetic induction decreases, and along the centerline in mold, the electromagnetic force increases with frequency though its increment decreases gradually. But, along the radius of electromagnetic stirrer the electromagnetic force decreases with increasing frequency and with the frequency kept constant and current intensity increased, the magnetic induction and electromagnetic force both increase in molten steel. Considering the results of numerical simulation as a whole, the optimal EMS parameters should be as follows: stirring current=480 A with a frequency=3 Hz.

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