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<p>Electromagnetic stirrers in the mold play a crucial role in continuous casting by regulating the flow of molten steel, which significantly influences the quality of the solidified shell and the uniformity of the microstructure. To enhance both energy and stirring efficiency, this study uses a 360&#xa0;mm × 300-mm bloom as the research object and proposes an innovatively designed cross-wound mold electromagnetic stirrer (C-EMS). Through multi-physics field coupling, the electromagnetic field and flow field characteristics of the conventional mold electromagnetic stirrer (M-EMS) and the proposed C-EMS are systematically compared and analyzed. The results show that at 1&#xa0;Hz, C-EMS achieves a magnetic flux density of 0.066&#xa0;T at 225 A, exceeding the 0.064&#xa0;T of M-EMS at 450 A. Correspondingly, C-EMS has a higher peak electromagnetic body force. At the mold outlet, the induced peak tangential velocity reaches 0.33&#xa0;m/s, which is significantly higher than the M-EMS value. Additionally, C-EMS reduces liquid surface fluctuations, homogenizes the flow field, and stabilizes temperature. The minimum solidified shell thickness at the solidification end is 12.7&#xa0;mm, indicating enhanced scouring and a flatter solidification interface. This study confirms C-EMS's notable advantages in energy saving, flow control, and solidification optimization.</p>

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Multiphysics Coupling Analysis of Cross-Wound Mold Electromagnetic Stirrer in Bloom Continuous Casting

  • 期刊论文

  • 发表日期：

    2026年3月9日

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  • Linhao Huang,
  • Peng Jin,
  • Jing Zhang

摘要

Electromagnetic stirrers in the mold play a crucial role in continuous casting by regulating the flow of molten steel, which significantly influences the quality of the solidified shell and the uniformity of the microstructure. To enhance both energy and stirring efficiency, this study uses a 360 mm × 300-mm bloom as the research object and proposes an innovatively designed cross-wound mold electromagnetic stirrer (C-EMS). Through multi-physics field coupling, the electromagnetic field and flow field characteristics of the conventional mold electromagnetic stirrer (M-EMS) and the proposed C-EMS are systematically compared and analyzed. The results show that at 1 Hz, C-EMS achieves a magnetic flux density of 0.066 T at 225 A, exceeding the 0.064 T of M-EMS at 450 A. Correspondingly, C-EMS has a higher peak electromagnetic body force. At the mold outlet, the induced peak tangential velocity reaches 0.33 m/s, which is significantly higher than the M-EMS value. Additionally, C-EMS reduces liquid surface fluctuations, homogenizes the flow field, and stabilizes temperature. The minimum solidified shell thickness at the solidification end is 12.7 mm, indicating enhanced scouring and a flatter solidification interface. This study confirms C-EMS's notable advantages in energy saving, flow control, and solidification optimization.