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连铸板坯电磁搅拌技术的发展现状及讨论

杨宝 张慧 王明林 王学兵 刘斌 刘帅

杨宝, 张慧, 王明林, 王学兵, 刘斌, 刘帅. 连铸板坯电磁搅拌技术的发展现状及讨论[J]. 钢铁钒钛, 2021, 42(5): 149-157. doi: 10.7513/j.issn.1004-7638.2021.05.023
引用本文: 杨宝, 张慧, 王明林, 王学兵, 刘斌, 刘帅. 连铸板坯电磁搅拌技术的发展现状及讨论[J]. 钢铁钒钛, 2021, 42(5): 149-157. doi: 10.7513/j.issn.1004-7638.2021.05.023
Yang Bao, Zhang Hui, Wang Minglin, Wang Xuebin, Liu Bin, Liu Shuai. Review of continue casting slab electromagnetic stirring technology[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 149-157. doi: 10.7513/j.issn.1004-7638.2021.05.023
Citation: Yang Bao, Zhang Hui, Wang Minglin, Wang Xuebin, Liu Bin, Liu Shuai. Review of continue casting slab electromagnetic stirring technology[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 149-157. doi: 10.7513/j.issn.1004-7638.2021.05.023

连铸板坯电磁搅拌技术的发展现状及讨论

doi: 10.7513/j.issn.1004-7638.2021.05.023
详细信息
    作者简介:

    杨宝(1991—),男,在读博士生,主要研究方向:连铸过程工艺研究及铸坯质量控制,E-mail:ybvip1991@163.com。

  • 中图分类号: TF777

Review of continue casting slab electromagnetic stirring technology

  • 摘要: 简述了连铸板坯电磁搅拌技术的发展过程和现存问题,重点阐述了连铸板坯生产过程中结晶器内和二冷区电磁搅拌的工作原理和技术特点,对电磁搅拌器的安装位置进行了归纳,同时总结了板坯结晶器电磁搅拌和二冷区电磁搅拌的研究现状,探究了影响板坯电磁搅拌效果的因素及其主次关系,归纳了用于二冷区电磁搅拌支撑辊的作用及需继续探究的方向,分析了板坯电磁搅拌技术对铸坯内元素分布和等轴晶区间隙率的影响,为以后的板坯电磁搅拌研究者提供参考。
  • 图  1  连铸板坯结晶器电磁搅拌器

    Figure  1.  Continuous casting slab mold electromagnetic stirrer

    图  2  电磁控流装置示意

    Figure  2.  Sketch of flow control mold

    图  3  二冷区电磁搅拌原理

    Figure  3.  The principle of electromagnetic stirring in the second cooling zone

    图  4  钢液的流场形状

    Figure  4.  The shape of flow field

    图  5  行波磁场搅拌器

    Figure  5.  Line wave magnetic field stirrer

    图  6  电磁推力与频率的关系

    Figure  6.  The relationship between electromagnetic and frequency

    图  7  电磁搅拌辊支承托辊示意

    Figure  7.  Schematic diagram of electromagnetic stirring roller support roller

    表  1  板坯连铸过程二冷区用电磁搅拌器的特点

    Table  1.   Characteristics of electromagnetic stirrer used in secondary cooling zone of slab continuous casting process

    类型感应器数量感应器绕组电流/A中心电磁推力(mmFe)作用面对扇形段改造优点缺点
    辊后式1台,单面安装铜管绕组,
    迭绕式
    200035~50单侧连铸机结构及辊列需改造寿命长磁力小;
    位置不可调
    磁极插入式2台,对面安装扁铜管绕组,克兰姆式2×70085~110内外弧双侧辊列结构
    需改造
    磁力大;寿命长;适用范围广需特制扇形段;铸坯易鼓肚
    辊式4根两对,
    对面安装
    扁铜线绕组,
    克兰姆式
    2×400一对60~80;
    两对并列:90~110
    内外弧双侧-安装位置灵活;
    磁力大;
    适用范围广
    寿命短;
    维护较麻烦
    下载: 导出CSV
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  • 收稿日期:  2021-07-07
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