带钢平整过程中C翘机理及治理策略

打开文本图片集

中图分类号：TG335.21

DOI：10.3969/j.issn.1004-132X.2025.06.022 开放科学（资源服务）标识码（OSID）：

C-warping Mechanism and Treatment Strategies in Leveling Processes of Strip Steels

YANG Yonghui1ZHANG Ji1TAN Hailong1NIU BaicaolBAI Zhenhua1，2，3 *

1.National Engineering Research Center for Equipment and Technology of Cold Strip Rolling， Yanshan University，Qinhuangdao，Hebei，

2.State Key Laboratory of Metastable Materials Science and Technology，Yanshan University， Qinhuangdao，Hebei，O66004 3.Yanshan University Shenzhen Research Institute，Shenzhen，Guangdong，518055

Abstract： In order to solve the problems of C-warping defects in strip steels in the leveling processes，the processing parameters in the strip leveling processes were optimized， and a set of C-warping prediction and treatment strategies for strip steels were developed. The formation mechanism of C- warping was analyzed from three aspects： rolling，processing lubrication systems and the influences of anti-wrinkle rollrs and anti-trembling rollers on the forces of strip steels. The stress distribution of the horizontal direction of the outlet strips in the thickness was obtained，based on the stress analysis of the strips under the assumption of half-plane infinite body，the maximum and minimum transverse elongation in the thickness direction of the strips were obtained，and the height of the C warp of the strips was obtained through the geometric relationship. A set of optimal height settings of anti-wrinkle rollrs and anti-trembling rollers were sought to minimize the objective function of the comprehensive control，and the elongation in the direction of strip thickness was controlled，so as to reduce C-warp. The model and treatment strategies were applied to a leveling unit in China，and the prediction errors of C warping height are controlled within 10% ，and the maximum warpage ranges of the unit are reduced from 1.4～6.5mm to 0.9～4.5mm . The results show that the C warpage prediction and treatment strategy meet the production demands，and the warpage values are significantly reduced，which reduces the repair rate caused by warpages.

Key words： strip steel; leveling；anti-wrinkle roller; anti-tembling roller; transverse extension; C-warp

0 引言

带钢作为一种常见的钢铁产品，在生产与应用过程中面临着多种挑战[1-3]。（剩余10687字）