Heat Transfer and Central Segregation of Continuously Cast High Carbon Steel Billet

作     者：Wang SU Wei-ling WANG Sen LUO Dong-bin JIANG Miao-yong ZHU 

作者机构：School of Materials and MetallurgyNortheastern University 

出 版 物：《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)

年 卷 期：2014年第21卷第6期

页      面：565-574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：Sponsored by National Natural Science Foundation of China(50925415) Fundamental Research Funds for Central University of China(N100102001) 

主　　题：continuously cast billeti high carbon steel heat transfer central segregation 

摘      要：A numerical model of heat transfer was developed to investigate the heat transfer of continuously cast billet with the aid of surface temperature tests by ThermaCAMTM researcher and nail shooting experiments. The effects of secondary cooling practice and casting speed on the solidification process and central segregation of carbon were investigated as well with the actual central segregation tests. The results show that the surface center and billet center temperatures exhibit a different pattern during solidification, and the solidified shell thickness is presented as an ＂S＂ type. With the increase of secondary cooling intensity and the decrease of casting speed, the end points of the solidus line and the liquidus line move forward, and the central segregation level of carbon decreases. The optimal casting condition is suggested for continuously cast high carbon billet with F-EMS （final electromagnetic stirring）.