60kg/m钢轨在四辊万能孔型中的变形研究  

Analysis of Deformation at Universal Rolling of 60kg/m Rail

作　　者：王永明[1,2] 周剑华[1] 吴迪[1] 王秉毅[2] 

机构地区：[1]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110004 [2]包钢钢联股份有限公司轨梁轧钢厂,内蒙古包头014010

出　　处：《轧钢》2008年第5期26-28,共3页Steel Rolling

摘　　要：采用有限元法模拟了60kg/m钢轨在四辊万能孔型中的变形,并与实际结果进行了对比分析,得出轧制前、后的钢轨断面变化与实际轧制取样结果基本一致,横向零位移线位于钢轨底部,轧制力的模拟值与实测值误差率在±5%以内,钢轨断面等效应变的分布不对称,存在局部高应变区,为钢轨的实际轧制提供了指导作用。The deformation process of the 60kg/m heavy rail in 4 h universal groove was simulated with finite element method. Reasonable agreement has been reached between the simulation results of the cross-section change with that of production result. The zero displace contour in horizontal lies in the bottom of rail. The ± 5 % prediction error of the rolling force was achieved. The equivalent strain in cross-section was unsymmetrical and high strain areas existed in section of rail, which could provide the practical instructions for the rolling of rail.

关 键 词：钢轨 万能轧制 变形 有限元 

分 类 号：TG335.43[金属学及工艺—金属压力加工] O242.82[理学—计算数学]