scholarly journals Optimization of continuous variable crown work roll shifting strategy using k‐nearest neighbors algorithm for hot strip rolling mill

2021 ◽  
Author(s):  
Dian‐yao Gong ◽  
Feng‐hua Li
Keyword(s):  
Rolling Mill ◽  
Nearest Neighbors ◽  
Work Roll ◽  
Continuous Variable ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
K Nearest Neighbors ◽  
Hot Strip ◽  
Shifting Strategy ◽  
Work Roll Shifting

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

Control Scheme Using Forward Slip for a Multi-stand Hot Strip Rolling Mill

2004 ◽  
Vol 18 (6) ◽  
pp. 972-978 ◽  
Author(s):  
Young Hoon Moon ◽  
I Seok Jo ◽  
Chester J. Van Tyne
Keyword(s):  
Rolling Mill ◽  
Forward Slip ◽  
Hot Strip Rolling ◽  
Strip Rolling ◽  
Hot Strip ◽  
Control Scheme

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 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.

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