Application of MHD Phenomenon on Secondary Refining and Continuous Casting Process

作     者：GENG Dian-qiao LEI Hong HE Ji-cheng 

作者机构：Key Laboratory of Electromagnetic Processing of MaterialsMinistry of EducationNortheastern University 

出 版 物：《Journal of Iron and Steel Research International》 (钢铁研究学报(英文版))

年 卷 期：2012年第19卷第S2期

页      面：941-944页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：Item Sponsored by 111 project[B07015] National Natural Science Foundation of China and Shanghai Baosteel[No.50834010] the Fundamental Research Funds for the Central Universities[N100409007] the Doctor Startup Foundation of Liaoning Province(20111009) 

主　　题：magnetic field MHD RH flow field continuous casting EMBR 

摘      要：In present work,the application of Magneto Hydrodynamics(MHD)to control the flow of liquid steel during secondary refining and continuous casting has been discussed.A mathematical model was developed to predict the flow field under magnetic field in different metallurgical *** examples,the effect of traveling magnetic filed in RH degasser has been discussed,and the effect of electromagnetic brake(EMBR)on flow field during continuous casting process has also been *** numerical results show that when the EMBR is installed near the nozzle port,the intensity of impinging jet near the narrow face mold wall is reduced,the downward flow becomes weaker,and the lower recirculation zone becomes *** circulation flow rate with traveling magnetic field imposed around the up snorkel in RH degasser is greater than that with magnetic field imposed around the down snorkel if the gas flow rate is less than the saturated value,but they are almost the same if the gas flow rate is greater than the saturated value.