| Improvement on strip flatness of cold temper mills by modifying roll contour shape |
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| 引用本文： | XiaoyanLi JieZhang XianlinChen JianguoCao HaixiaLi. Improvement on strip flatness of cold temper mills by modifying roll contour shape[J]. 北京科技大学学报(英文版), 2004, 11(3): 251-255 |
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| 作者姓名： | XiaoyanLi JieZhang XianlinChen JianguoCao HaixiaLi |
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| 作者单位： | MechanicalEngineeringSchool,UniversityofScienceandTechnologyBeijing,Beijing100083,China |
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| 摘 要： | A study on roll gap profile (strip profile) control was accomplished in a 1700 mm single-stand temper mill. Some critical problems such as the deviation of work roll contour caused by grinding and wear, the effectiveness of work roll bending were discussed. Using a finite element model, the effects of roll contours (ground and wear) on strip profile were investigated. The roll bending effect on strip thickness was also analyzed. It is pointed out that there are some special features of flatness control in the temper mill: during temper rolling, roll deformation is slight due to small rolling load, and the loaded roll gap profile mainly depends on work roll contour, while the backup roll has a little effect on gap crown; the effect of bending force on gauge can not be ignored due to the coupling between flatness control and gauge control. A new roll contour arrangement adaptable to the mill was presented and has been put into practical production. The application of the new set of rolls showed some good results: larger crown control range of work roll bender, higher rolling stability, better strip profile and flatness quality.
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| 关 键 词： | 带平面 冷却回火 冷轧 带形控制 挠度 轧辊轮廓设备 |
Improvement on strip flatness of cold temper mills by modifying roll contour shape |
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| Xiaoyan Li,Jie Zhang,Xianlin Chen,Jianguo Cao,Haixia Li. Improvement on strip flatness of cold temper mills by modifying roll contour shape[J]. Journal of University of Science and Technology Beijing, 2004, 11(3): 251-255 |
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| Authors: | Xiaoyan Li Jie Zhang Xianlin Chen Jianguo Cao Haixia Li |
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| Abstract: | A study on roll gap profile (strip profile) control was accomplished in a 1700 mm single-stand temper mill. Some critical problems such as the deviation of work roll contour caused by grinding and wear, the effectiveness of work roll bending were discussed. Using a finite element model, the effects of roll contours (ground and wear) on strip profile were investigated. The roll bending effect on strip thickness was also analyzed. It is pointed out that there are some special features of flatness control in the temper mill: during temper rolling, roll deformation is slight due to small rolling load, and the loaded roll gap profile mainly depends on work roll contour, while the backup roll has a little effect on gap crown; the effect of bending force on gauge can not be ignored due to the coupling between flatness control and gauge control. A new roll contour arrangement adaptable to the mill was presented and has been put into practical production. The application of the new set of rolls showed some good results: larger crown control range of work roll bender, higher rolling stability, better strip profile and flatness quality. |
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| Keywords: | cold rolling temper mill strip shape control roll contour arrangement bending |
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