| Comprehensive contour prediction model of work rolls in hot wide strip mill |
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| 引用本文： | Xiaodong Wang Quan Yang Anrui He Renzhong Wang. Comprehensive contour prediction model of work rolls in hot wide strip mill[J]. 北京科技大学学报(英文版), 2007, 14(3): 240-245. DOI: 10.1016/S1005-8850(07)60046-2 |
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| 作者姓名： | Xiaodong Wang Quan Yang Anrui He Renzhong Wang |
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| 作者单位： | Xiaodong Wang，Quan Yang，Anrui He，and Renzhong Wang National Engineering Research Center for Advanced Rolling Technology，University of Science and Technology Beijing，Beijing 100083，China |
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| 基金项目： | 国家重大技术装备创新研制项目 |
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| 摘 要： | The predictive calculation of comprehensive contour of work rolls in the on-line strip shape control model during hot rolling consists of two important parts of wear contour calculation and thermal contour calculation, which have a direct influence on the ac- curacy of shape control. A statistical wear model and a finite difference thermal contour model of work rolls were described. The comprehensive contour is the equivalence treatment of the sum of grinding, wear, and thermal contours. This comprehensive contour calculation model has been applied successfully in the real on-line strip shape control model. Its high precision has been proved through the large amounts of actual roll profile measurements and theoretical analyses. The hit rates (percent of shape index satisfying re- quirement) of crown and head flatness of the strips rolled, by using the shape control model, which includes the comprehensive contour calculation model, have about 16% and 10% increase respectively, compared to those of strips rolled by using manual operation.
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| 关 键 词： | 热宽带材 带型控制 磨损辊形 热辊形 工作辊 轧制机 |
| 收稿时间： | 24 July 2006. |
| 修稿时间： | 2006-07-24 |
Comprehensive contour prediction model of work rolls in hot wide strip mill |
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| Xiaodong Wang,Quan Yang,Anrui He,Renzhong Wang. Comprehensive contour prediction model of work rolls in hot wide strip mill[J]. Journal of University of Science and Technology Beijing, 2007, 14(3): 240-245. DOI: 10.1016/S1005-8850(07)60046-2 |
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| Authors: | Xiaodong Wang Quan Yang Anrui He Renzhong Wang |
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| Affiliation: | National Engineering Research Center for Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | The predictive calculation of comprehensive contour of work rolls in the on-line strip shape control model during hot rolling consists of two important parts of wear contour calculation and thermal contour calculation, which have a direct influence on the accuracy of shape control. A statistical wear model and a finite difference thermal contour model of work rolls were described. The comprehensive contour is the equivalence treatment of the sum of grinding, wear, and thermal contours. This comprehensive contour calculation model has been applied successfully in the real on-line strip shape control model. Its high precision has been proved through the large amounts of actual roll profile measurements and theoretical analyses. The hit rates (percent of shape index satisfying requirement) of crown and head flatness of the strips rolled, by using the shape control model, which includes the comprehensive contour calculation model, have about 16% and 10% increase respectively, compared to those of strips rolled by using manual operation. |
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| Keywords: | hot rolled strip strip shape control comprehensive contour wear contour thermal contour |
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