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| Influence of Workpiece Width on Hot Strip Mill Stretch |
| LI Haijun1,ZHAO Xuliang1,ZHANG Dianhua1,WANG Guodong1,CHEN Feng2 |
| 1.The State Key Laboratory of Rolling Technology and Automation, Northeastern University, Shenyang 110004, Liaoning, China; 2. Hot Strip Plant of RockCheck Iron and Steel Company Co., Ltd., Tianjin 200431, China |
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Abstract Mill stretch equation is an indispensable model for AGC system. The mill stretch is changed with strip width during rolling process. The actual mill stretch deviates from that measured with “mill kiss” method, when the strip width deviates from work roll face width. The influence of strip width on mill stretch was analyzed with influence function method, and the results show that mill stretch width compensation increased with strip width decreasing or rolling force increasing. A mill stretch width compensation regression model was developed for online application.
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Received: 01 January 1900
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2008, Vol. 43 
