• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of numerical methods for heat & fluid flow >Numerical simulation and experiment validation of level-pour direct-chill casting of A390 alloy hollow billets under different feeding schemes
【24h】

Numerical simulation and experiment validation of level-pour direct-chill casting of A390 alloy hollow billets under different feeding schemes

机译：不同进给方式下A390合金空心坯水平浇铸直接冷铸的数值模拟和实验验证

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

Purpose - The purpose of this paper is to study the effect of feeding scheme on melt flow and temperature field during the steady-state of level-pour direct-chill (DC) casting of A390 alloy hollow billet and optimize the design of feeding scheme. Design/methodology/approach - Melt flow and temperature field are investigated by numerical simulation, which is based on a three-dimensional mathematical model and well verified by experiments. Findings - The numerical results reveal that both melt flow and temperature field are obviously affected by the feeding scheme. The homogeneity of melt flow and temperature field in hollow billet with the feeding scheme of modified four inlets are better than the other feeding schemes. Experimental results show that crack can be eliminated by increasing the number of feeding inlets. The primary Si size appears unaffected while the distribution of primary Si particles is highly affected by the change of feeding scheme. Only with the feeding scheme of modified four inlets can fine and uniformly distributed primary Si particles be achieved. Practical implications - The paper includes implications for the design of feeding scheme in level-pour DC casting of hollow billet for practical use. Originality/value - This paper develops different feeding schemes for level-pour DC casting of hollow billet and optimizes the design of feeding scheme.
机译：目的-本文的目的是研究在A390合金中空坯料的水平浇铸直接冷却（DC）稳态过程中，进料方案对熔体流动和温度场的影响，并优化进料方案的设计。设计/方法/方法-通过数值模拟研究熔体流动和温度场，该模拟基于三维数学模型并通过实验很好地验证。研究结果-数值结果表明，熔体流动和温度场都明显受进料方案的影响。采用改进的四个进口的喂料方案，空心坯料的熔体流动和温度场的均匀性要优于其他喂料方案。实验结果表明，通过增加进料口数量可以消除裂纹。原始Si的尺寸似乎不受影响，而原始Si颗粒的分布受进料方案的变化影响很大。只有采用改进的四个入口的进料方案，才能实现细小且均匀分布的原始Si颗粒。实际意义-本文包括对中空坯料水平浇铸DC浇铸供料方案设计的实际意义。原创性/价值-本文针对空心坯的水平浇铸DC浇铸开发了不同的进料方案，并优化了进料方案的设计。

著录项

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