• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 2nd International symposium on clean steel >Experimental Investigation of Fluid Flow in CC Mold With Electromagnetic Filed
【24h】

Experimental Investigation of Fluid Flow in CC Mold With Electromagnetic Filed

机译：电磁场在CC模具中流动的实验研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fluid flow in continuous casting mold is one of the key factors to influence the process, because the operation of the casting process and most of the defects in steel quality are closely associated with fluid flow in the mold. Electromagnetic field(EMF) has been applied to control the fluid flow as an efficient technology, and a lot of research works on the effect of the EMF has been done by numerical simulation. Aware of the limitation of the numerical simulation of the flow under a static EMF, low melting metals have been adapted to the investigation of flow in EMF. In the report, some of works on electromagnetic brake ruler (EMBR) and Flow Control Mold (FC-Mold) in slab casting with mercury as an analogue of liquid steel are presented. In the experiment, the flow in the mold and fluctuation of meniscus were measured by the ultrasonic DOP2000 velocimeter. The effects of the magnetic flux density and location of the magnets on the flow in the mold have been studied. The results showed that the flow discharged from the SEN was suppressed, both of the distribution of the kinetic energy and the turbulence intensity were changed, and the flow stability of liquid metal in the mold was enhanced. In electromagnetic brake ruler when Bmax was more than 0.29T, the surface level fluctuations were suppressed, the flow at the meniscus became stable and the flow pattern at the meniscus were improved, and the impact strength of liquid metal was weakened simultaneously, and the penetration depth was reduced. It was beneficial to improve the flow in the upper eddy, fluctuation of meniscus and stability of the flow when the magnet was located near the SEN. However, it was good to reduce the impact action and penetration depth when the magnet was away from the SEN. Compared with EMBR, it was more effective to use FCMold for improving the flow in the upper eddy, fluctuation of meniscus and stability of the flow. Nevertheless, it was more effective for lower flow to reducing the impact action and penetration depth using EMBR. The experiment results showed that a magnetic field could not only damp flow, but also change the flow direction and distribute the flux of liquid steel. Thus, the flow in the mold could be improved by optimizing the distribution of magnetic field. The behavior of gas bubbles in the melt during continuous casting with EMBR has been investigated experimentally. It is found that the movement and distribution of the bubbles changed a lot. The bubbles tended to penetrate less and accumulate near the SEN when the EMBR switched on.
机译：连铸结晶器中的流体流动是影响工艺的关键因素之一，因为铸造过程的运行和钢质中的大多数缺陷与结晶器中的流体流动密切相关。电磁场（EMF）已被用作控制流体流动的一种有效技术，并且通过数值模拟已经完成了许多有关EMF效果的研究工作。意识到静态EMF下流动的数值模拟的局限性，低熔点金属已被用于研究EMF中的流动。在该报告中，介绍了在以汞作为液态钢类似物的板坯铸造中的电磁制动标尺（EMBR）和流控制模（FC-Mold）的一些工作。在实验中，用DOP2000超声波测速仪测量模具中的流动和弯液面的波动。已经研究了磁通量密度和磁体位置对模具中流动的影响。结果表明，从SEN排出的流动受到抑制，动能的分布和湍流强度都发生了变化，并且提高了液态金属在模具中的流动稳定性。当Bmax大于0.29T时，在电磁制动直尺中，表面液位波动得到抑制，弯月面处的流量变得稳定，弯月面处的流动方式得到改善，液态金属的冲击强度同时减弱，并且渗透深度减少了。当磁体位于SEN附近时，有利于改善上涡流，弯液面的波动以及流的稳定性。但是，当磁体远离SEN时，最好减小冲击作用和穿透深度。与EMBR相比，使用FCMold改善上涡流，弯液面波动和流量稳定性更为有效。但是，使用EMBR降低流量以降低冲击作用和穿透深度更有效。实验结果表明，磁场不仅可以阻尼流动，而且可以改变流向，分布钢水。因此，可以通过优化磁场分布来改善模具中的流动。已经通过实验研究了用EMBR连续铸造过程中熔体中气泡的行为。发现气泡的运动和分布变化很大。当EMBR开启时，气泡倾向于渗透较少并聚集在SEN附近。

著录项

  • 来源
  • 会议地点 Shenyang(CN)
  • 作者

    REN Zhong-ming; ZHANG Zhen-qiang; DENG Kang; YU Zhang; LEI Zuo-sheng;

  • 作者单位

    Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072,China;

    Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072,China;

    Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072,China;

    Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072,China;

    Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072,China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 炼钢;
  • 关键词

    electromagnetic brake; fluid flow; liquid metal; continuous casting;

    机译：电磁制动器流体流量液态金属连铸；;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号