Influence of Joint EMSFN and M-EMS on Fluid Flow in the Mold During Continuous Casting  

作　　者：Oleksandr Tretiak Qiang Wang De-Wei Li Xiao-Wei Zhu Chun-Lei Wu Ming He 

机构地区：[1]Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education), Northeastern University [2]School of International Exchange, Northeastern University [3]School of Resources and Materials, Northeastern University at Qinhuangdao [4]School of Metallurgy, Northeastern University

出　　处：《Acta Metallurgica Sinica(English Letters)》2018年第12期1345-1355,共11页金属学报（英文版）

基　　金：financial support from the National Natural Science Foundation of China(Nos.U1560207and U51504057);the National Key R&D Program of China:Upgrading and Industrialization of Key Basic Material Technology(No.2017YFB0304400)

摘　　要：Homogenization of physical properties and the chemical composition through the control of liquid metal flow is essentialduring the continuous casting production of billets. This work was aimed at obtaining improved finished products viacontinuous casting that implements two magnetic fields. These fields were realized via two electromagnetic stirringprocesses implemented in a single process： one in the nozzle and one in the mold. The qualitative effects of applyingdouble electromagnetic stirring （EMS） were verified through numerical simulation of 178 mm × 178 mm square billetsexposed to double electromagnetic fields during the continuous casting process. The accuracy of the numerical calculationswas verified via physical experiments. In addition, the final simulation results were compared with the intermediate results,to determine the true effects of different EMS on the metal flow in the mold. The results revealed that casting using EMSwith different directions of magnetic field in the mold and the nozzle has the best effect on the distribution of the fluid flowand minimal influence on the stability of the meniscus and yields the minimum metal-jet penetration into the mold.Homogenization of physical properties and the chemical composition through the control of liquid metal flow is essentialduring the continuous casting production of billets. This work was aimed at obtaining improved finished products viacontinuous casting that implements two magnetic fields. These fields were realized via two electromagnetic stirringprocesses implemented in a single process： one in the nozzle and one in the mold. The qualitative effects of applyingdouble electromagnetic stirring （EMS） were verified through numerical simulation of 178 mm × 178 mm square billetsexposed to double electromagnetic fields during the continuous casting process. The accuracy of the numerical calculationswas verified via physical experiments. In addition, the final simulation results were compared with the intermediate results,to determine the true effects of different EMS on the metal flow in the mold. The results revealed that casting using EMSwith different directions of magnetic field in the mold and the nozzle has the best effect on the distribution of the fluid flowand minimal influence on the stability of the meniscus and yields the minimum metal-jet penetration into the mold.

关 键 词：Continuous casting Submerged nozzle Electromagnetic stirring Microstructure 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]