| 结晶器电磁搅拌对圆坯质量影响的研究 |
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| 引用本文： | 刘国平,吴耀光,张建平,汪国才,田乃媛. 结晶器电磁搅拌对圆坯质量影响的研究[J]. 钢铁, 2005, 40(9): 30-32,53 |
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| 作者姓名： | 刘国平 吴耀光 张建平 汪国才 田乃媛 |
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| 作者单位： | 马鞍山钢铁股份公司第一钢轧总厂,安徽,马鞍山,243011;马鞍山钢铁股份公司技术中心,安徽,马鞍山,243011;北京科技大学冶金与生态工程学院,北京,100083 |
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| 摘 要： | 通过数值模拟计算了马钢圆坯连铸（断面尺寸为Ф450mm）电磁搅拌参数对磁场分布的影响，并通过生产试验研究了电磁搅拌参数对铸坯质量的影响。模拟计算表明，结晶器磁场强度随着搅拌电流的增加而增大，电流不变时，频率越小，磁场强度越大。现场试验表明，采用电磁搅拌能有效改善铸坯低倍组织，搅拌电流越大，铸坯中心等轴晶比率越高；电磁搅拌还能有效改善铸坯疏松和中心偏析状况。选择合适的电磁搅拌参数可以获得良好的铸坯质量。
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| 关 键 词： | 电磁搅拌 数值模拟 铸坯质量 |
| 文章编号： | 0449-749X（2005）09-0030-03 |
| 修稿时间： | 2005-03-13 |
Research on Effect of Mold Electromagnetic Stirring on Quality of Round Billet |
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| LIU Guo-ping,WU Yao-guang,ZHANG Jian-ping,WANG Guo-cai,TIAN Nai-yuan. Research on Effect of Mold Electromagnetic Stirring on Quality of Round Billet[J]. Iron & Steel, 2005, 40(9): 30-32,53 |
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| Authors: | LIU Guo-ping WU Yao-guang ZHANG Jian-ping WANG Guo-cai TIAN Nai-yuan |
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| Abstract: | The influence of parameters of round billet mold stirrer on magnetic field pattern Was studied by numerical simulation and the influence of mold stirrer parameters on the quality of round billet was analyzed in production test. Computational results indicated that magnetic field intensity increases with current and decrease of frequency. Industrial trial showed that electromagnetic stirring has positive effect on macrostructure, porosity, central segregation of strand. The rate of equiaxed crystals is increased with electric current. Good billet quality can be obtained with appropriate electromagnetic stirring parameters. |
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| Keywords: | electromagnetic stirring numerical simulation billet quality |
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