辊式矫直机弯辊设定与辊缝补偿方法  

Method of bending roll presetting and roll gap compensation for leveler

作　　者：王学敏[1] 

机构地区：[1]宝钢集团中央研究院,上海201900

出　　处：《重型机械》2016年第2期6-10,共5页Heavy Machinery

摘　　要：基于弹塑性变形理论,可推导出辊式矫直机辊缝计算方法,但负载情况下矫直机本体发生较大的弹性变形,导致实际辊缝比预设定偏大;同时,由于矫直力大小沿带钢宽度方向分布不均匀,设备本体变形沿辊长方向呈一定的挠曲线形状,从而导致辊缝沿辊长方向的不均匀,影响带钢矫直效果,传统二维理论模型无法考虑这部分变形量。本文以某5辊粗矫机为例,对负载情况下设备弹性变形量进行了三维定量计算,并举例介绍了矫直机辊缝补偿方法和弯辊预设定方法。研究成果投入现场应用后,对提高成材率、改善产品质量起到明显的改进作用。Based on the theory of elastic-plastic bending deformation,the calculating method of roll gap can be obtained,but a large elastic deformation occurs under large leveling force,which leads to actual roll gap larger than preset roll gap. At the same time,because of the distribution of the uneven leveling force along the plate width,equipment deformation is in the shape of a certain amount of deflection curve,thus the uneven roll gap occurs along the roll length direction. And the leveling effect must be affected. Traditional two-dimensional theoretical model can not consider this part of deformation. In this paper,a 5 roll rough leveler as an example,equipment elastic-deformation was calculated under leveling force. Roll gap compensation method and the setting method of bending roll were introduced by example. Practical application result showed that the new technology can improve the quality of products.

关 键 词：矫直机模型 弯辊技术 辊缝预设定 设备弹跳 热轧板形 

分 类 号：TG333[金属学及工艺—金属压力加工]