冷轧薄板离线板形测量误差分析及其修正技术  

Error analysis and correction technology of off-line flatness measurement of cold rolled sheet

作　　者：白振华 张立更[1] 崔熙颖 刘超智 李鹏 BAI Zhen-hua;ZHANG Li-geng;CUI Xi-ying;LIU Chao-zhi;LI Peng(National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,China;State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004 [2]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《塑性工程学报》2020年第4期164-169,共6页Journal of Plasticity Engineering

基　　金：河北省自然科学基金资助项目(E2016203385);重型机械协同创新计划课题(ZX01-20140400-05)。

摘　　要：针对以往现场就冷轧薄板离线板形测量过程中忽略重力影响而造成测量板形与实际板形偏差较大的问题,充分考虑到冷轧薄板离线板形测量的工艺特征,研究了冷轧薄板离线板形测量误差的产生机理,分析了不同浪距和板厚对浪高的影响,并建立了一套适合于冷轧薄板离线板形测量的重力影响模型。在此基础上,定量分析了重力因素对浪高的影响并提出了相应的冷轧薄板离线板形测量误差修正技术,采用悬挂测量法验证了冷轧薄板离线板形测量误差的修正方法的计算精度。将其应用到某1220二次冷轧机组的生产实践,取得了良好的使用效果。Aiming at the problem that there is a large deviation between the measured and actural flatness due to neglecting the gravity effect in the off-line flatness measurement of cold rolled sheet at the scene in the past,the process characteristics of off-line flatness measurement of cold rolled sheet were taken into full consideration and the production mechanism of off-line flatness measurement error of cold rolled sheet was studied;the influence of different wave distances and sheet thicknesses on wave height was analyzed,and a set of gravity influence model suitable for off-line flatness measurement of cold rolled sheet was established.On this basis,the influence of gravity on wave height was analyzed quantitatively,and the corresponding correction technology of off-line shape measurement error of cold rolled sheet was proposed,and the calculation accuracy of the correction method for off-line flatness measurement error of cold rolled sheet was verified by hanging measurement method.The technology was applied to the production practice of a 1220 double cold rolling mill,and good using effects were achieved.

关 键 词：冷轧薄板 离线板形测量 误差 修正 

分 类 号：TG335.5[金属学及工艺—金属压力加工]