| Mathematical Model for Electroslag Remelting Process |
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| 引用本文： | DONG Yanwu,JIANG Zhouhua,LI Zhengbang. Mathematical Model for Electroslag Remelting Process[J]. 钢铁研究学报(英文版), 2007, 14(5): 7-0. DOI: 10.1016/S1006-706X(07)60065-X |
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| 作者姓名： | DONG Yanwu JIANG Zhouhua LI Zhengbang |
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| 作者单位： | 1. School of Materials and Metallurgy，Northeastern University，Shenyang 110004，Liaoning，China; 2. Institute for Metallurgical Technology，Central Iron and Steel Research Institute，Beijing 100081，China |
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| 基金项目： | Item Sponsored by Weaponry Pre-Research Fund （51412020304QT0901） |
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| 摘 要： | A mathematical model, including electromagnetic field equation, fluid flow equation, and temperature field equation, was established for the simulation of the electroslag remelting process. The distribution of temperature field was obtained by solving this model. The relationship between the local solidification time and the interdendritic spacing during the ingot solidification process was established, which has been regarded as a criterion for the evaluation of the quality of crystallization. For a crucible of 950 mm in diameter, the local solidification time is more than 1 h at the center of the ingot with the longest interdendritic spacing, whereas it is the shortest at the edge of the ingot according to the calculated results. The model can be used to understand the ESR process and to predict the ingot quality.
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| 关 键 词： | 电渣重熔 数学模型 枝晶间距离 凝固时间 |
| 收稿时间： | 2006-11-29 |
Mathematical Model for Electroslag Remelting Process |
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| DONG Yan-wu,JIANG Zhou-hua,LI Zheng-bang. Mathematical Model for Electroslag Remelting Process[J]. Journal of Iron and Steel Research, 2007, 14(5): 7-0. DOI: 10.1016/S1006-706X(07)60065-X |
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| Authors: | DONG Yan-wu JIANG Zhou-hua LI Zheng-bang |
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| Affiliation: | 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China
2. Institute for Metallurgical Technology, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | A mathematical model, including electromagnetic field equation, fluid flow equation, and temperature field equation, was established for the simulation of the electroslag remelting process. The distribution of temperature field was obtained by solving this model. The relationship between the local solidification time and the interdendritic spacing during the ingot solidification process was established, which has been regarded as a criterion for the evaluation of the quality of crystallization. For a crucible of 950 mm in diameter, the local solidification time is more than 1 h at the center of the ingot with the longest interdendritic spacing, whereas it is the shortest at the edge of the ingot according to the calculated results. The model can be used to understand the ESR process and to predict the ingot quality. |
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| Keywords: | electroslag remelting mathematical model interdendritic spacing local solidification time |
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