• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Experimental and Numerical Investigations on Non-metallic Inclusions Distribution in Billets Casted at a Multi-strand Continuous Casting Tundish
【24h】

Experimental and Numerical Investigations on Non-metallic Inclusions Distribution in Billets Casted at a Multi-strand Continuous Casting Tundish

机译：多股连铸中间包铸坯中非金属夹杂物分布的实验和数值研究

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

Modern tundishes plays an important role of refining treatments to improve the quality and purity of casted steel. Purity of steel is defined by the non-metallic inclusions in the steel product, including their size, quantity, distribution, chemical composition and mineralogy. The aim of presented studies was to investigate the number and distribution of non-metallic inclusion in individual billets casted in a six-strand tundish. The industrial measurements, performed during stable production conditions at the continuous steel casting (CSC) plant, were performed for different tundish working space configurations. Analysis of the size and number of non-metallic inclusions has been done on the metallographic samples using light microscope. Experimental studies were supported with numerical simulations using large eddy simulations (LES) method. A modified boundary condition describing inclusion separation at the liquid steel surface was implemented in commercial code AnsysFluent. Experimental results concern size distribution of inclusions in billets for current tundish configuration showed big differences between casted ingots. Numerical results shown the domination in the number of inclusions occurring in the nozzles number 3 and 4 (for basic tundish configuration) and in the nozzles number 2 and 5 (for tundish with turbulence inhibitor). The reason for that is the change in configuration tundish working space, that has an impact on the flow field inside the tundish. Experimental measurements performed for proposed modified tundish configuration (with turbulence inhibitor) shown that those differences are much smaller, which in consequence has an influence in higher quality of continuously casted ingots for individual strand of CSC.
机译：现代隧道在精炼处理以提高铸钢质量和纯度方面起着重要作用。钢的纯度由钢产品中的非金属夹杂物定义，包括其尺寸，数量，分布，化学成分和矿物学。提出研究的目的是研究以六股中间包浇铸的单个钢坯中非金属夹杂物的数量和分布。在连续浇铸（CSC）工厂的稳定生产条件下进行的工业测量是针对不同的中间包工作空间配置进行的。使用光学显微镜对金相样品进行了非金属夹杂物的尺寸和数量分析。实验研究得到了使用大涡模拟（LES）方法的数值模拟的支持。修改后的边界条件描述了钢水表面夹杂物的分离，已在商业代码AnsysFluent中实现。关于当前中间包配置的坯料中夹杂物尺寸分布的实验结果表明，铸锭之间存在很大差异。数值结果表明，在3号和4号喷嘴（对于基本的中间包配置）和2号和5号喷嘴（对于带有湍流抑制剂的中间包）中出现的夹杂物数量占主导地位。原因在于配置中间包工作空间的变化，这对中间包内部的流场产生了影响。对建议的改良中间包构型（带有湍流抑制剂）进行的实验测量表明，这些差异要小得多，因此，对于CSC的单个钢绞线，连铸铸锭的更高质量具有影响。

著录项

  • 来源
    《ISIJ international》 |2013年第11期|1983-1992|共10页
  • 作者

    Marek WARZECHA; Tomasz MERDER; Piotr WARZECHA; Grzegorz STRADOMSKI;

  • 作者单位

    Department of Metals Extraction and Recirculation, Czestochowa University of Technology, ul. Armii Krajowej 19, Czestochowa, 42-201 Poland;

    Department of Metallurgy, Silesian University of Technology, ul. Krasinskiego 8, Katowice, 40-019 Poland;

    Institute of Thermal Machinery, Czestochowa University of Technology, ul. Armii Krajowej 21, Czestochowa, 42-201 Poland;

    Institute of Plastic Deformation and Safety Engineering, Czestochowa University of Technology, ul. Armii Krajowej 19, Czestochowa, 42-201 Poland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    continuous casting; tundish; non-metallic inclusions;

    机译：连铸;中间包非金属夹杂物;

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