基于调控效应的冷轧工作辊精细冷却控制研究  

Research on fine-spray-cooling control of work roll for strip cold rolling based on control effect

作　　者：王伟[1] 李世苗 张波 WANG Wei;LI Shi-miao;ZHANG Bo(College of Mechanical Engineering and Automation,Fuzhou University,Fuzhou 350116,China)

机构地区：[1]福州大学机械工程及自动化学院

出　　处：《轻合金加工技术》2019年第6期39-44,63,共7页Light Alloy Fabrication Technology

基　　金：国家自然科学基金资助项目(No.51774097);福建省科技计划项目(No.2018H0015);福建省高端装备制造协同创新中心资助项目(闽教科(2012)79号)

摘　　要：针对铝带冷轧过程中易出现四次板形缺陷问题,研究了基于调控效应的残余四次板形偏差多分段协同冷却控制方法。给出了与四次板形偏差对应的热辊型调节曲线方程,建立了基于调控效应的轧辊热辊型计算方程以及精细冷却液流量调节量计算方程。建立了轧辊温度场有限元仿真模型,计算了轧辊精细冷却调控效应系数矩阵,分析了精细冷却热辊型与冷却液流量变化的关系,获得了针对残余四次板形偏差的冷却液流量分布规律。研究表明精细分段冷却适合慢时变的板形扰动因素,研究所获得的冷却液流量分布规律为残余四次板形偏差的多分段协同冷却控制提供了基础。In order to investigate the quarter buckle defect of cold rolled aluminum strip, the multi-section collaborative fine-spray-cooling-control method based on cooling control effect is researched for the residual quarter flatness deviation. The thermal roll camber adjusting curve equation corresponding to the quarter flatness deviation is suggested, the calculation equations of the thermal roll camber and the fine adjustment of coolant flow rate based on control effect are established. The finite element simulation model of roll temperature field is established, the control effect coefficient of the roll fine spray cooling is calculated. In addition ,the relationship between the thermal camber variation and the coolant flow rate variation is analyzed and the cooling flow rate distribution for addressing the quarter buckle defect is obtained. The research results indicate that the fine spray cooling is suitable for slow-time-va-rying disturbance factors of strip flatness deviation, and the the suggested fine-spray-cooling flow rate distribution provides the basis for multi-section collaborative cooling control of the residual quarter flatness deviation.

关 键 词：精细冷却控制 热辊型 有限元法 调控效应系数 四次板形偏差 

分 类 号：TG334.9[金属学及工艺—金属压力加工]