采用曲率积分法的中厚板冷矫直过程解析模型  

Analytical model of cold roller straightening process of plate using curvature integration method

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作  者:韩文[1] 马炜师 胡典章[1] 刘睿 李洪波[2] HAN Wen;MA Weishi;HU Dianzhang;LIU Rui;LI Hongbo(Steel Rolling and Metal Processing Engineering Technology Institute,Capital Engineering and Research Incorporation Limited,Beijing 100176,China;School of Mechanical and Engineering,University of Science and Technology Beijing,Beijing 100086,China)

机构地区:[1]中冶京诚工程技术有限公司轧钢与金属加工工程技术所,北京100176 [2]北京科技大学机械工程学院,北京100083

出  处:《钢铁研究学报》2025年第3期357-366,共10页Journal of Iron and Steel Research

基  金:科技部创新方法专项资助项目(2020IM020500)。

摘  要:为提高中厚板产线钢板冷矫直效果及效率,使用曲率积分法建立9辊冷矫直工艺解析模型,探讨不同钢板因素及工艺策略对曲率比、矫直力等主要参数的影响规律,经验证,模型总矫直力偏差在10%以内。借助该模型分析了不同钢板因素对矫直力和残余曲率的影响,其中钢种、板厚的影响较大,初始曲率比的影响较小;借助该模型分析了1、2、8、9号矫直辊压下量对矫直的影响,其中,矫后残余曲率比和总矫直力均随压下量的增大而增大,8号辊对矫后残余曲率比调控能力最强,2号辊对总矫直力的影响最大,相比而言,1、9号辊的影响均较小。参考研究成果调整现场矫直策略,需矫直3道次及以上的钢板数量占比由30%~35%降低至10%~15%,效果较明显。In order to improve the effect and efficiency of cold straightening of plate in medium plate production line,an analytical model of nine-roll cold straightening process was established based on curvature integration method.The influence of different plate factors and process strategies on the main parameters such as curvature ratio and straightening force was discussed.It was verified that the total straightening force deviation of the model was within 10%.With this model,the influence of different plate factors on straightening force and residual curvature was analyzed.Among them,the influence of steel grade and plate thickness is greater,and that of initial curvature ratio is smaller.With this model,the influence of the reduction of No.1,No.2,No.8 and No.9 straightening rollers on the straightening was analyzed.Among them,the residual curvature ratio and the total straightening force increase with the increase in the reduction.The No.8 roller has the strongest ability to control the residual curvature ratio after straightening,and the No.2 roller has the greatest influence on the total straightening force.In contrast,the effects of No.1 and No.9 rollers are small.Referring to this research results,the field straightening strategy is adjusted.The proportion of plates that need to be straightened for 3 passes or more is reduced from 30%-35%to 10%-15%.

关 键 词:中厚板 辊式矫直机 曲率积分法 残余曲率 矫直力 

分 类 号:TG333.2[金属学及工艺—金属压力加工]

 

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