|
|
Theoretical Explanation of Uneven Transverse Temperature Distribution in Wide Thin Strip Rolling Process |
TIAN Li-li, Paolo Patrizi Jie, ZHANG Jie |
|
|
Abstract In this paper we propose a new theoretical thermo-mechanical explanation of the uneven transverse temperature distribution, along the width, for thin and wide hot rolled produced strip. In particular, we base our reasoning starting from the irregular pressure/friction distribution, that lead to an uneven heat generation. A 2-D mathematical model to calculate the transverse temperature distribution is presented, both to give a physical explanation to our problem, and to be used as an essential basis to build a correspondent FEM simulation model, in which heat loss and generation are both considered. Deformation and friction heat are both described in details, having a paramount importance in our reasoning. The heat generation problem is split into two parts, for a clearer and more logical analysis: one for the strip centre, and one for the sides, in correspondence of the temperature peak points at 100mm from the strip edge. Finally it is shown how our new theoretical model can lead to the exact interpretation of the measured uneven temperature distribution.
|
Received: 19 May 2008
|
Corresponding Authors:
Tian Li-Li
|
|
|
|
[1] |
Hong��bin LI,,Yun��li FENG,Tao YAN,En��lin YU. Constitutive Model of Warm Deformation Behavior of Medium Carbon Steel[J]. Chinese Journal of Iron and Steel, 2016, 23(9): 940-948. |
[2] |
Dian-hua ZHANG,Jian-zhao CAO,Jiu-jing XU,Wen PENG,De-wen ZHAO. Simplified Weighted Velocity Field for Prediction of Hot Strip Rolling Force by Taking into Account Flattening of Rolls[J]. Chinese Journal of Iron and Steel, 2014, 21(7): 637-643. |
[3] |
ZHAO Yong-hong,WENG Yang,PENG Ning-qi,TANG Guang-bo,LIU Zheng-dong. Prediction of Mechanical Properties of Hot Rolled Strip by Using Semi-Parametric Single-Index Model[J]. Chinese Journal of Iron and Steel, 2013, 20(7): 9-15. |
[4] |
CHEN Zhi��ming;LUO Fei;XU Yu��ge;YU Wei. Roll Eccentricity Compensation Based on Anti��Aliasing Wavelet Analysis Method[J]. Chinese Journal of Iron and Steel, 2009, 16(2): 35-0. |
[5] |
XU Yun��bo;YU Yong��mei;LIU Xiang��hua;WANG Guo��dong. Prediction of Rolling Load, Recrystallization Kinetics, and Microstructure During Hot Strip Rolling[J]. Chinese Journal of Iron and Steel, 2007, 14(6): 42-0. |
|
|
|
|