| 轧辊偏移条件下六辊轧机的板形调控特性 |
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| 作者姓名： | 郑见 何安瑞 刘超 孙文权 邵健 智建伟 |
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| 作者单位： | 北京科技大学高效轧制国家工程研究中心,北京,100083;北京科技大学高效轧制国家工程研究中心,北京,100083;北京科技大学高效轧制国家工程研究中心,北京,100083;北京科技大学高效轧制国家工程研究中心,北京,100083;北京科技大学高效轧制国家工程研究中心,北京,100083;北京科技大学高效轧制国家工程研究中心,北京,100083 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助项目(FRF-IC-16-001)国家自然科学基金资助项目(51404021) |
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| 摘 要： | 为提高冷轧带钢六辊轧机辊系的稳定性,目前常采用轧辊偏移方法.本文通过ABAQUS有限元软件建立辊系-轧件一体化耦合模型,对不同轧辊偏移辊系进行受力分析,揭示了不同轧辊偏移条件对六辊轧机板形调控特性的影响规律.结果表明,中间辊正向偏移轧制时,工作辊弯辊力对二次凸度调控功效最好,对四次凸度影响较大;在四种偏移方式条件下,中间辊弯辊力在0~300 kN范围内对带钢二、四次凸度调控功效基本相同;中间辊正向偏移轧制时,中间辊弯辊力在300~500 kN范围内对带钢二次凸度调控功效最好;工作辊正向偏移轧制时,中间辊弯辊力对四次凸度影响较大;不同轧辊偏移条件下中间辊窜辊对带钢二次凸度调控趋势基本相同,且负窜辊对二次凸度的调控功效优于正窜辊,工作辊正、反向偏移轧制条件下中间辊窜辊对四次凸度影响较大.
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| 关 键 词： | UCM轧机 稳定性 辊系-轧件耦合模型 轧辊偏移 板形调控 |
| 收稿时间： | 2016-08-17 |
Shape-control characteristics of six-high mill with roll offset |
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| Affiliation: | National Engineering Research Center of Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | To improve the stability of the six-high cold rolling mill, the roll offset method is often used. This paper uses ABAQUS finite element software to establish the rolls-strip coupling model. The study analyzes typical roll systems with different roll offsets to determine the effect of different roll offsets on the shape-control characteristics of the six-high cold rolling mill. Specifically, the results show that when the intermediate roll offset is positive, the bending force of the work rolls has the best control effect on the quadratic crown, as well as great influence on the quartic crown. For the four roll offsets used, the efficiency of the bending force of the intermediate rolls on the quadratic and quartic crowns of the strip is almost the same, ranging from 0-300 kN. When the intermediate roll offset is positive, the bending force of the intermediate rolls has the best control effect on the quadratic crown, ranging from 300-500 kN. When the work roll offset is positive, the bending force of the intermediate rolls also has a great influence on the quartic crown. The controlling tendencies of the shift of the intermediate roll on the quadratic crown are almost the same for different roll offsets, and the efficiency of negative roll shifting on the quadratic crown is better than that of positive roll shifting. Intermediate roll shifting also has a great influence on the quartic crown when the work rolls are offset. |
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