Multi-physical fields distribution in billet during helical electromagnetic stirring:A numerical simulation research
作者机构：State Key Laboratory of Metal Materials for Marine Equipment and ApplicationAnshan 114009LiaoningChina Ansteel Beijing Research Institute Co.Ltd.Beijing 102200China
出 版 物：《China Foundry》 (中国铸造（英文版）)
年 卷 期：2024年第21卷第1期
页 面：51-59页
核心收录：
学科分类：0806[工学-冶金工程] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程]
基 金：financially supported by the National Key R&D Projects(No.2021YFB3702000) the Regional Company Projects in Ansteel Beijing Research Institute(No.2022BJB07GF&No.2022BJB-13GF)
主 题：billet electromagnetic stirring helical solidification element segregation numerical simulation
摘 要：Electromagnetic stirring is one of the widely applied techniques to modify the quality of casting *** from conventional rotate stirring,the helical stirring is more professional in assisting multi-dimensional flow of molten metal and eliminating solidification *** this study,the single-winding helical stirring(SWHS)was introduced,offering advantages such as smaller volume and lower electromagnetic shielding compared to traditional helical stirring *** a comprehensive numerical simulation,the stirring parameters of SWHS were adjusted to yoke inclination angle of 43°and frequency of 12 *** higher electromagnetic force and flow velocity in drawing direction,as well as the lower temperature gradient induced by the SWHS,are positive factors for homogeneous solidification of *** experimental results on Al-8%Si alloy and 0.4%C-1.1%Mn steel demonstrate that compared to rotate stirring,the SWHS process can induce better billet quality and is more effective in accelerating the equiaxed expansion and reducing element *** SWHS process can enhance the equiaxed ratio of the billet by 58.3%and reduce segregation degree of carbon element by 10.97%.Consequently,SWHS holds great promise as a potential approach for improving the quality of continuous casting billets.
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