An FE Based On-line Model for the Prediction of Work Roll Thermal Profile in Hot Strip Rolling

2010 ◽  
Author(s):  
Ji Won Choi ◽  
Jung Hyeung Lee ◽  
Cheng Gang Sun ◽  
Sang Moo Hwang ◽  
F. Barlat ◽  
...  
Keyword(s):  
Work Roll ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Thermal Profile ◽  
Line Model ◽  
Hot Strip ◽  
On Line

scholarly journals FE-based On-line Model for the Prediction of Roll Force and Roll Power in Hot Strip Rolling.

2000 ◽  
Vol 40 (10) ◽  
pp. 1013-1018 ◽  
Author(s):  
W. J. Kwak ◽  
Y. H. Kim ◽  
H. D. Park ◽  
J. H. Lee ◽  
S. M. Hwang
Keyword(s):  
Roll Force ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Line Model ◽  
Hot Strip ◽  
On Line

FE based online model for the prediction of work roll thermal profile in hot strip rolling

2010 ◽  
Vol 37 (5) ◽  
pp. 369-379
Author(s):  
J. W. Choi ◽  
J. H. Lee ◽  
C. G. Sun ◽  
S. M. Hwang
Keyword(s):  
Work Roll ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Thermal Profile ◽  
Hot Strip

scholarly journals A precision on-line model for the prediction of roll force and roll power in hot-strip rolling

2002 ◽  
Vol 33 (10) ◽  
pp. 3255-3272 ◽  
Author(s):  
W. J. Kwak ◽  
J. H. Lee ◽  
S. M. Hwang ◽  
Y. H. Kim
Keyword(s):  
Roll Force ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Line Model ◽  
Hot Strip ◽  
On Line

scholarly journals On the Evolution of Temperature and Combined Stress in a Work Roll under Cyclic Thermo-Mechanical Loadings during Hot Strip Rolling and Idling

Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5054
Author(s):  
Kejun Hu ◽  
Qinghe Shi ◽  
Wenqin Han ◽  
Fuxian Zhu ◽  
Jufang Chen
Keyword(s):  
Thermal Stress ◽  
Hot Rolling ◽  
Work Roll ◽  
Rolling Process ◽  
Roll Surface ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Hot Strip ◽  
Calculation Results ◽  
Work Rolls

An accurate prediction of temperature and stress evolution in work rolls is crucial to assess the service life of the work roll. In this paper, a finite element method (FEM) model with a deformable work roll and a meshed, rigid body considering complex thermal boundary conditions over the roll surface is proposed to assess the temperature and the thermal stress in work rolls during hot rolling and subsequent idling. After that, work rolls affected by the combined action of temperature gradient and rolling pressure are investigated by taking account of the hot strip. The accuracy of the proposed model is verified through comparison with the calculation results obtained from the mathematical model. The results show that thermal stress is dominant in the bite region of work rolls during hot rolling. Afterwards, the heat treatment residual stresses which are related to thermal fatigue are simulated and introduced into the work roll as the initial stress to evaluate the redistribution under the thermal cyclic loads during the hot rolling process. Results show that the residual stress significantly changed near the roll surface.

scholarly journals Work roll shifting method by optimum calculation of work roll profile in hot strip rolling

2017 ◽  
Vol 207 ◽  
pp. 1320-1325
Author(s):  
Shinya Yamaguchi ◽  
Masaru Miyake ◽  
Keisuke Kimura ◽  
Tatsuya Jinnouchi
Keyword(s):  
Work Roll ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Roll Profile ◽  
Hot Strip ◽  
Work Roll Shifting

Computational Model of Work Roll Temperature Distribution during Hot Strip Rolling Process

2012 ◽  
Vol 229-231 ◽  
pp. 2432-2435
Author(s):  
Xing Dong Li ◽  
Yan Xia Shan ◽  
Chang Hong Guo
Keyword(s):  
Computational Models ◽  
Work Roll ◽  
Rolling Process ◽  
Hot Strip Mill ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Roll Temperature ◽  
Hot Strip ◽  
Temperature Field Model ◽  
Deformation Work

Computational models of deformation and friction work were established by dividing contact arc between strip and work roll into two sliding regions, two braking regions and one stagnating region. A two dimensional temperature field model of work roll was established by finite difference method according to practical boundary conditions. Simulation results show that with the increase of rolling pass, deformation work reduced while friction work increased, except that deformation and friction works at the last pass were the least. The computed rolling forces and work roll surface temperatures agree well with measured values collected from a hot strip mill.

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