Work Roll Shifting Strategy of Uneven “Cat Ear” Wear Control for Profile and Flatness of Electrical Steel in Schedule‐Free Rolling

2020 ◽  
Vol 91 (9) ◽  
pp. 1900662
Author(s):  
JianGuo Cao ◽  
HaiTao Xiong ◽  
XiaoHai Huang ◽  
QiuFang Zhao ◽  
YanLin Li ◽  
...  
Keyword(s):  
Electrical Steel ◽  
Work Roll ◽  
Shifting Strategy ◽  
Work Roll Shifting

ASR work roll shifting strategy for schedule-free rolling in hot wide strip mills

2011 ◽  
Vol 211 (11) ◽  
pp. 1768-1775 ◽  
Author(s):  
Jian-guo Cao ◽  
Si-jia Liu ◽  
Jie Zhang ◽  
Ping Song ◽  
Tan-li Yan ◽  
...  
Keyword(s):  
Work Roll ◽  
Wide Strip ◽  
Shifting Strategy ◽  
Work Roll Shifting

Research on Broken Edge Wave Control Strategy Caused by Edge Drop Control in UCMW Cold Tandem Rolling

2013 ◽  
Vol 655-657 ◽  
pp. 1525-1529 ◽  
Author(s):  
Lu Bing Wang ◽  
Lin Jing Yan ◽  
An Rui He ◽  
Yu Jing Liu
Keyword(s):  
Control Strategy ◽  
Shape Control ◽  
Work Roll ◽  
Control Model ◽  
Edge Wave ◽  
Effective Contact ◽  
Work Roll Shifting ◽  
Control Accuracy ◽  
Edge Drop ◽  
Wave Control

Taking MH UCMW cold tandem mill as research object, broken edge wave generating mechanism and characteristics were analyzed which caused by edge drop control. Based on original control strategy, an automatic edge wave control model was developed, and edge drop control strategy was optimized. Effect of taper work roll shifting and taper shape on broken edge wave were analyzed by actual rolling data. Results show that broken edge wave decreases with effective contact depth increasing of taper work roller and strip. Optimized control system application eliminate broken edge wave, and improve automatic shape control accuracy.

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

Edge drop and high spot control of hot-rolled non-oriented electrical steel strip by taper roll shifting strategy

2018 ◽  
Vol 47 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Chi-huan Yao ◽  
An-rui He ◽  
Jian Shao ◽  
Yun-jin Zhang ◽  
Hai-shan Zhao
Keyword(s):  
Electrical Steel ◽  
Steel Strip ◽  
Shifting Strategy ◽  
Hot Rolled ◽  
Edge Drop

Analysis of Thin Strip Shape and Profile in Cold Rolling: A Way to Improve Strip Profile and Mechanical Properties

2016 ◽  
Vol 879 ◽  
pp. 849-854 ◽  
Author(s):  
H.B. Tibar ◽  
Zheng Yi Jiang
Keyword(s):  
Mechanical Properties ◽  
Cold Rolling ◽  
Low Carbon Steel ◽  
Physical And Mechanical Properties ◽  
Work Roll ◽  
Thin Strip ◽  
Speed Ratio ◽  
Low Carbon ◽  
Strip Profile ◽  
Work Roll Shifting

Optimisation of the physical and mechanical properties of cold rolled thin strips is achieved by controlling the rolling parameters. In this paper, the factors affecting the low carbon steel thin strip profile of asymmetrical cold rolling have been studied at a speed ratio of 1.3 without lubricant applied. The effect of rolling parameters on the resulting microstructure was also investigated. It was found that under dry condition, work roll shifting and work roll cross angle can improve the strip profile, and the improvement is more significant with an increase of work roll cross angle rather than that of work roll shifting. A slight change in microstructure was evident with increasing work roll shifting values. In addition, effects of rolling parameters on the strip profile and microstructure have also been discussed.

scholarly journals Improving Thin Strip Profile Using Work Roll Cross and Work Roll Shifting Methods in Cold Strip Rolling

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Hasan Tibar ◽  
Zhengyi Jiang
Keyword(s):  
Rolling Force ◽  
Work Roll ◽  
Strip Width ◽  
Thin Strip ◽  
Speed Ratio ◽  
Strip Rolling ◽  
Strip Shape ◽  
Strip Profile ◽  
Work Roll Shifting ◽  
Work Rolls

The optimization of rolling parameters in order to achieve better strip shape and to reduce rolling force is a challenge in rolling practice. In this paper, thin strip asymmetrical rolling of aluminum at various speed ratios under lubricated condition has been investigated at various combinations of work rolls cross (WRC) angles and work rolls shifting (WRS) values. The effects of strip width, reduction, and rolling speed on strip shape taking WRC and WRS into consideration are discussed. Results show that strip profile improves significantly when the WRC angle is increased from 0° to 1°, with an associated reduction in rolling force. Increasing WRS value from 0 to 8 mm improves the strip profile as well but not as significantly as when WRC angle is increased. No significant improvement was found in strip shape when the strip width was increased. At higher reduction, the strip shape was improved; a decrease in the rolling force was also observed. A higher speed ratio was found to be effective only at a higher WRC angle. The effect of lubrication on the strip profile was significant. Results indicate that an optimum combination of WRC, WRS, reduction, width, and speed ratio under lubricated conditions can ensure an improved exit strip profile, reduce rolling force, and obtain a better quality strip.

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