电磁搅拌优化对不锈钢连铸过程凝固组织的影响

王宝峰; 丁国; 黄军; 李建超

doi:10.15980/j.tzzz.2014.01.035

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电磁搅拌优化对不锈钢连铸过程凝固组织的影响
Optimum Design of the EMS（Electromagnetic Stirring）and Its Influences on the Solidification Microstructure of Ferrite Stainless Steel in the Continuous Casting Process
2014年34卷第1期页码：34-37
纸质出版日期： 2014 ，
DOI： 10.15980/j.tzzz.2014.01.035

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[1]王宝峰,丁国,黄军,李建超.电磁搅拌优化对不锈钢连铸过程凝固组织的影响[J].特种铸造及有色合金,2014,34(01):34-37.

Wang Baofeng, Ding Guo, Huang Jun, et al. Optimum Design of the EMS（Electromagnetic Stirring）and Its Influences on the Solidification Microstructure of Ferrite Stainless Steel in the Continuous Casting Process[J]. Special Casting & Nonferrous Alloys, 2014,34(1):34-37.
[1]王宝峰,丁国,黄军,李建超.电磁搅拌优化对不锈钢连铸过程凝固组织的影响[J].特种铸造及有色合金,2014,34(01):34-37. DOI： 10.15980/j.tzzz.2014.01.035.

Wang Baofeng, Ding Guo, Huang Jun, et al. Optimum Design of the EMS（Electromagnetic Stirring）and Its Influences on the Solidification Microstructure of Ferrite Stainless Steel in the Continuous Casting Process[J]. Special Casting & Nonferrous Alloys, 2014,34(1):34-37. DOI： 10.15980/j.tzzz.2014.01.035.

摘要

应用磁流体力学

结合数值模拟

对不锈钢连铸二冷区电磁场搅拌器的结构进行了优化设计

并对连铸过程中的电磁场与钢水流动的关系进行了定量分析。结果发现

电磁搅拌是控制和改善铁素体不锈钢连铸坯组织的有效手段

合理的电磁搅拌控制参数如下:当电流为600

00A

频率为8

2Hz时

坯壳内部钢水流动速度达到0.6m/s时可以显著提高连铸坯搅拌区域的等轴晶率。

Abstract

Based on magneto-hydrodynamics（MHD）combining with computational fluid dynamics（CFD）

structure design of electromagnetic stirrer for secondary cooling zone from a stainless steel enterprise was optimized.Meanwhile

relationship of the electromagnetic field with liquid steel flow was described quantitatively.The results show that the optimized electromagnetic stirring parameters are presented as follows:current density of 600

00Aand frequency of 8

2Hz.Electromagnetic stirring is a effective way to control and improve the microstructure of ferrite stainless steel in the continuous casting process.With the help of the optimized stirring parameters and the flow velocity of liquid steel in the mould of 0.6m/s

the equiaxed crystal rate in the stirred zone can be increased significantly.