带液芯方坯重压下的变形特点  

Deformation Characteristics of Billet with Liquid Core under Heavy Reduction

作　　者：张凤心[1] 杨轶龙[1] 宋秉钧[1] 祁林[1] 

机构地区：[1]鞍钢股份有限公司炼钢总厂,辽宁鞍山114021

出　　处：《鞍钢技术》2017年第6期17-20,24,共5页Angang Technology

摘　　要：应用有限元仿真软件研究了带液芯方坯重压下的变形特点。结果表明,施加不同压下量,铸坯的宽展变形和应变均随压下量的增加而增加,组合压下较单辊压下的宽展量大,铸坯应变最大值逐渐增大,最大应变位置逐渐向铸坯中心移动,压下量的临界值为12~14 mm,超过该值后,铸坯的最大应变位置出现在铸坯中心。The deformation characteristics of a billet with liquid core under heavy reduction were studied by the finite element simulation software. The study results showed that both the width deformation and the strain of the billet enlarged with increasing different reduction, comparing with the width deformation under the reduction by the single pair of rollers, the width deformation under combined reduction was bigger and also the biggest strain value of the billet gradually increased and the biggest strain point gradually moved to the center of the billet, the critical value of the reduction was in the range from 12 to 14 mm. so if the critical value of the reduction was over this range, the biggest strain point of the billet should be in the center of the billet.

关 键 词：方坯 重压下 仿真 宽展 应变 

分 类 号：TF537[冶金工程—钢铁冶金]