铜板带水平连铸电磁搅拌中熔体的流动和凝固

于湛; 李伟轩; 邓康; 雷作胜; 任忠鸣

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铜板带水平连铸电磁搅拌中熔体的流动和凝固
Flow and Solidification of Copper Thin-slab in Horizontal Continuous Casting with Electromagnetic Stirring
2008年第3期页码：229-231
纸质出版日期： 2008 ，
DOI：

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[1]于湛,李伟轩,邓康,雷作胜,任忠鸣.铜板带水平连铸电磁搅拌中熔体的流动和凝固[J].特种铸造及有色合金,2008(03):229-231+163.

Yu Zhan, Li Weixuan, Deng Kang, et al. Flow and Solidification of Copper Thin-slab in Horizontal Continuous Casting with Electromagnetic Stirring[J]. Special Casting & Nonferrous Alloys, 2008,(3):229-231.
[1]于湛,李伟轩,邓康,雷作胜,任忠鸣.铜板带水平连铸电磁搅拌中熔体的流动和凝固[J].特种铸造及有色合金,2008(03):229-231+163. DOI：

Yu Zhan, Li Weixuan, Deng Kang, et al. Flow and Solidification of Copper Thin-slab in Horizontal Continuous Casting with Electromagnetic Stirring[J]. Special Casting & Nonferrous Alloys, 2008,(3):229-231. DOI：

摘要

用水银模拟了磁场和直流电场作用下板带水平连铸结晶器内的流动

测量了沿拉坯方向上的流速

分析了流动对凝固过程的影响

并在模拟的基础上进行了铜合金板带水平连铸工业试验。结果表明

电磁搅拌使铸坯气孔减少或消失

平均偏析率下降

柱状晶组织细化并出现中心层等轴晶带

当电流增大到400A以上时

气孔完全消失

解决了铜板带坯柱状晶对接问题。

Abstract

The effects of melt flow on the solidification behavior were investigated by measuring the flow velocity along pulling-direction based on the flow simulation of mercury in mold of horizontal continuous casting thin-slab with electromagnetic stirring.The horizontal continuous casting copper thin-slab was produced on the basis of the mentioned results.The results reveal that electromagnetic stirring can reduce and eliminate the gas hole in the copper thin-slab and decrease the average segregation degree with the refinement of columnar grain and the existence of equiaxed grain region in center of the thin-slab

realizing the columnar-equiaxed grain transition in the horizontal continuous casting copper thin-slab.