Theoretical Explanation of Uneven Transverse Temperature Distribution in Wide Thin Strip Rolling Process

作     者：TIAN Li-li Paolo Patrizi ZHANG Jie Fabio Miani 

作者机构：University of Science and Technology Beijing Beijing 100083 China University of Udine Udine 33100 Italy 

出 版 物：《Journal of Iron and Steel Research International》 (J. Iron Steel Res. Int.)

年 卷 期：2010年第17卷第4期

页      面：18-23页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 080104[工学-工程力学] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 0801[工学-力学（可授工学、理学学位）] 

主　　题：hot strip rolling strip temperature distribution strip thermomechanical behaviour deformation heat friction heat 

摘      要：A new theoretical thermomechanical explanation of the uneven transverse temperature distribution, along the width for thin and wide hot rolled strip was proposed. In particular, starting from the irregular pressure and friction distribution which led to an uneven heat generation, a 2D mathematical model of calculating the transverse termperature distribution was presented. A physical explanation for this problem was given and the model was used as an essential basis to build a corresponding FEM simulation model, in which heat loss and generation were considered. Deformation and friction heat were described in details. For a clearer and more logical analysis, the heat generation problem was split into two parts： one for the strip centre, and one for the sides, in correspondence with the temperature peak points at 100 mm from the strip edge. Finally, the result shows that how thenew theoretical model can lead to the exact interpretation of the measured uneven temperature distribution.