Numerical simulation of melt flow and temperature field during DC casting 2024 aluminium alloy under different casting conditions  

作　　者：Jin-chuan Wang Yu-bo Zuo Qing-feng Zhu Jing Li Rui Wang Xu-dong Liu 

机构地区：[1]Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110819,China [2]School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China [3]Engineering Research Center of Advanced Materials Preparing Technology,Ministry of Education,Shenyang 110819,China [4]CAS Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China

出　　处：《China Foundry》2024年第4期387-396,共10页中国铸造（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51674078)。

摘　　要：Casting speed,casting temperature and secondary cooling water flow rate are the main process parameters affecting the DC casting process.These parameters significantly influence the flow and temperature fields during casting,which are crucial for the quality of the ingot and can determine the success or failure of the casting operation.Numerical simulation,with the advantages of low cost,rapid execution,and visualized results,is an important method to study and optimize the DC casting process.In the present work,a simulation model of DC casting 2024 aluminum alloy was established,and the reliability of the model was verified.Then,the influence of casting parameters on flow field and temperature field was studied in detail by numerical simulation method.Results show that with the increase of casting speed,the melt flow becomes faster,the depths of slurry zone and mushy zone increase,and the variation of slurry zone depth is greater than that of mushy zone.With an increase in casting temperature,the melt flow rate increases,the depth of the slurry zone becomes shallower,and the depth of the mushy zone experiences only minor changes.The simulation results further indicate that the increase of the flow rate of the secondary cooling water slightly reduces the depths of both slurry and mushy zone.

关 键 词：aluminium DC casting flow field temperature field numerical simulation 

分 类 号：TG146.21[一般工业技术—材料科学与工程]