板材调宽轧制头部形状控制有限元分析  

FEM Analysis of Geometry Control of the Plate Head in the Vertical-horizontal Rolling Processes

作　　者：李学通[1] 杜凤山[1] 王敏婷[1] 吴建峰[2] 

机构地区：[1]燕山大学,秦皇岛066004 [2]上海宝山钢铁股份有限公司,上海201900

出　　处：《中国机械工程》2005年第8期712-715,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助重点项目(50435010);国家重点基础研究发展规划资助项目(2004CCA06600)

摘　　要：利用数值仿真技术建立立轧/平轧三维热应力耦合有限元模型,对宝钢2050粗轧区实际工况进行仿真计算。计算所得的带钢头部形状与实测结果吻合很好,说明所建模型合理且有效。针对宝钢2050现场轧制实际问题,研究了立轧/平轧过程带钢头部的非稳态变形规律,给出了立轧头部等效应力、等效应变及厚向位移分布规律。根据模拟计算数据建立控制带钢头部形状的短行程控制模型。通过对比分析可知,所得新模型比原模型能更好地改善头部形状及减少切损量。A 3D coupling thermal-mechanical FEA model for vertical-horizontal rolling was established by the aid of numerical simulation technology, which was applied to simulate the rolling processes on 2050 roughing trains of Baosteel. The calculated strip head shapes are in good agreement with the actual results, thus the model is effective. Based on the actual problems of 2050 roughing mill of Baosteel, the nonsteady-state deformation of plate head was investigated. The distributions of equivalent stress, equivalent strain and displacement in the thickness direction were presented during the edging head. And a new SSC model was established based on the simulation results. The new model is able to more improve the head shape and decrease crop-losses than the original by comparison of FEM simulation results.

关 键 词：热轧 调宽 短行程控制 有限元 

分 类 号：TG335[金属学及工艺—金属压力加工]