GCr15SiMn钢超大圆坯凝固过程传热研究  

Research on Heat Transfer During Solidification Process for Super-large Round Billet of GCr15SiMn

作　　者：许建飞 麻永林[2] XU Jian-fei;MA Yong-lin(Periodical Press,North China University of Science and Technology,Tangshan Hebei 063210,China;School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou Inner Mongolia 014010,China)

机构地区：[1]华北理工大学期刊社,河北唐山063210 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《华北理工大学学报（自然科学版）》2022年第2期10-15,共6页Journal of North China University of Science and Technology：Natural Science Edition

基　　金：国家自然科学基金(51044002);科技部国际合作项目(2010DFB70630);内蒙古自治区研究生教育创新计划资助项目(S20131012704)。

摘　　要：基于非稳态凝固传热模型,使用一种商业有限元软件ANSYS,对GCr15SiMn轴承钢超大圆坯整个连铸过程进行数值模拟研究,连铸工艺参数包括拉速、过热度、比水量和二冷区长度。结果表明,圆坯表面温度与液芯长度等计算数据与现场数据吻合良好,且现场连铸工艺参数改变时对大尺寸铸坯影响较大。Based on unsteady state solidification and heat transfer mathematical model,the whole continuous casting process for super-large round billet of GCr15SiMn was simulated by using a commercial ANSYS finite element model.The technological parameters for continuous casting include withdraw speed,degree of superheat,specific water and the second cooling zone length.The results show that the calculated results such as the surface temperature and liquid core length are reasonably in accordance with the on-site test data.In addition,when the continuous casting process parameters were changed their effects on greater size super-large round billet are bigger.

关 键 词：有限元 超大圆坯 数学模型 连铸 

分 类 号：TF777.9[冶金工程—钢铁冶金]