新一代高技术宽带钢冷轧机全机组一体化板形控制  

High precision integrated profile and flatness control for new-generation high-tech wide strip cold rolling mills

作　　者：曹建国[1,2,3] 江军[1,2,3] 邱澜 李艳琳 何安瑞 张勇军[2,4] CAO Jianguo;JIANG Jun;QIU Lan;LI Yanlin;HE Anrui;ZHANG Yongjun(School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China;National Engineering Research Center of Flat Rolling Equipment,University of Science and Technology Beijing,Beijing 100083,China;Institute of Artificial Intelligence,University of Science and Technology Beijing,Beijing 100083,China;National Engineering Research Center for Advanced Rolling Technology,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学机械工程学院,北京100083 [2]北京科技大学国家板带生产先进装备工程技术研究中心,北京100083 [3]北京科技大学人工智能研究院,北京100083 [4]北京科技大学高效轧制国家工程研究中心,北京100083

出　　处：《中南大学学报（自然科学版）》2019年第7期1584-1591,共8页Journal of Central South University:Science and Technology

基　　金：科技部创新方法工作专项(2016IM010300);“绿扬金凤计划”创新领军人才项目(yzlyjfjh2015CX055);中央高校基本科研业务费专项(FRF-GF-17-A5)~~

摘　　要：针对新一代高技术宽带钢冷轧机冷轧薄板高精度板形质量边降、凸度、同板差和平坦度等多指标日趋严苛难题,结合生产实践分析宽带钢冷轧机国际主流机型及其板形控制特点,提出宽带钢冷连轧"门户机架""中间机架组"和"成品机架"全机组一体化板形控制策略。研究结果表明:从四辊和六辊冷轧机的凸度和边降构成特征可知,四、六辊轧机轧辊压扁的不均匀变形和"有害接触区"弯矩在带钢凸度和边降构成均占主要比例,四辊轧机板形控制能力随着宽度的增加而显著增强,且对四辊和六辊轧机高精度一体化板形控制应采取明显不同的实现途径。Aiming at the severe problem of the increasingly high precision cold rolled sheet profile and flatness quality requirement with multi-index edge drop,crown,transverse thickness deviation and flatness for the new generation of high-tech wide strip cold rolling mill,the leading mainstream mill types and its shape control characteristics were analyzed based on producing practice,the whole units and integration of "gate stand","intermediate stand group" and "final product stand" shape control strategy of wide strip tandem cold rolling was proposed.The results show that the composing characteristics of the edge drop and crown of 4-high and 6-high cold rolling mills show that the uneven deformation of rolls flattening and the deflection of work rolls caused by the pressure in undesired overhung contact areas between rolls are the main contributions to the strip crown and edge drop ratio.It is found that the profile and flatness controllability must be enhanced significantly with the increasement of the strip width in 4-high rolling mills, and the distinctly different approaches to high precision integrated profile and flatness control should be adopted in the 4-high and 6-high rolling mills.

关 键 词：冷轧 轧机机型 带钢 板形控制 边降控制 

分 类 号：TG333.72[金属学及工艺—金属压力加工]