Mould taper optimization for continuous casting steels by numerical simulation  

作　　者：Wang Tongmin Cai Shaowu Li Jun Xu Jingjing Chen Zongning Zhu Jing Cao Zhiqiang Li Tingju 

机构地区：[1]School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China

出　　处：《China Foundry》2010年第1期61-67,共7页中国铸造（英文版）

基　　金：supported by National Natural Science Foundation of China(No.50601003 andNo.50971032);New Century Excellent Talents in University(NCET-07-0137);Scienti fic Research Fund of Liaoning Provincial Education Department

摘　　要：A transient,two-dimensional,coupled finite element model was employed to simulate the solidification and shrinkage of continuous casting steels by means of ANSYSTM.In the model,a gap-dependent heat transfer condition was introduced to modify the heat flux function,and the variations of material thermal properties,mechanical properties as well as the yield function with temperature were considered.The solidification and shrinkage processes of four round billets and two square billets were simulated by indirect coupled method.Simulation results show that carbon content,pouring temperature,casting speed and shape of billets have distinct influence on the solidification shrinkage of billets.Ideal continuous parabolic tapers were designed and optimized according to the calculated shrinkage curves of billets.A transient, two-dimensional, coupled finite element model was employed to simulate the solidification and shrinkage of continuous casting steels by means of ANSYSTM. In the model, a gap-dependent heat transfer condition was introduced to modify the heat flux function, and the variations of material thermal properties, mechanical properties as well as the yield function with temperature were considered. The solidification and shrinkage processes of four round billets and two square billets were simulated by indirect coupled method. Simulation results show that carbon content, pouring temperature, casting speed and shape of billets have distinct influence on the solidification shrinkage of billets. Ideal continuous parabolic tapers were designed and optimized according to the calculated shrinkage curves of billets.

关 键 词：MOULD parabolic taper SHRINKAGE numerical simulation 

分 类 号：TG826[金属学及工艺—公差测量技术] TF777[冶金工程—钢铁冶金]