矩形电磁冒口内部磁场分布模拟研究

孙兴龙; 许长军; 胡小东; 赵红阳; 李静; 刘岩

doi:10.15980/j.tzzz.2015.12.008

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矩形电磁冒口内部磁场分布模拟研究
Simulation of Magnetic Distribution in the Rectangular Electromagnetic Riser
2015年35卷第12期页码：1257-1260
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.12.008

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[1]孙兴龙,许长军,胡小东,赵红阳,李静,刘岩.矩形电磁冒口内部磁场分布模拟研究[J].特种铸造及有色合金,2015,35(12):1257-1260.

Sun Xinglong, Xu Changjun, Hu Xiaodong, et al. Simulation of Magnetic Distribution in the Rectangular Electromagnetic Riser[J]. Special Casting & Nonferrous Alloys, 2015,35(12):1257-1260.
[1]孙兴龙,许长军,胡小东,赵红阳,李静,刘岩.矩形电磁冒口内部磁场分布模拟研究[J].特种铸造及有色合金,2015,35(12):1257-1260. DOI： 10.15980/j.tzzz.2015.12.008.

Sun Xinglong, Xu Changjun, Hu Xiaodong, et al. Simulation of Magnetic Distribution in the Rectangular Electromagnetic Riser[J]. Special Casting & Nonferrous Alloys, 2015,35(12):1257-1260. DOI： 10.15980/j.tzzz.2015.12.008.

摘要

为了寻求更加有效的钢锭补缩技术

采用数值模拟方法研究了电磁补缩过程中矩形电磁冒口内部的磁场分布规律。结果表明

冒口内部磁感应强度在高度方向呈"两边小

中间大"的分布趋势。感应电流、电流频率、磁场作用位置等均对冒口内部磁场分布产生影响。为了在试验矩形冒口顶部获得稳定的热中心

电流控制在150

00A间

电流频率选择2000Hz

感应器底部与冒口底部距离控制在100

10mm之间

模拟值与实测值误差在10%以内

能够满足工程技术要求。

Abstract

In order to seek more effective ingot feeding technique

numerical simulation of internal magnetic field distribution in rectangular electromagnetic riser during electromagnetic feeding process was investigated.The results show that the magnetic induction distribution trend along the height direction exhibits feaure of"small at both ends

big in the middle"in the riser.Induced current

current frequency

magnetic field position have a great effect on magnetic field distribution in the riser.In order to obtain a stable thermal center at the top of the rectangular riser

with the current controling in 150

00A

current frequency of 2 000 Hz

sensor and the riser at the bottom controling between 100

10mm

the error of simulated values and measured value is less than 10%

meeting the engineering requirements.