冷轧带材板形在线云图监控系统研究与应用  

Research and application of online sonogram monitoring system for cold rolled strip flatness

作　　者：王鹏飞 张智杰 李旭[2] 王海峰 梁锦堂 高磊 WANG Peng-fei;ZHANG Zhi-jie;LI Xu;WANG Hai-feng;LIANG Jin-tang;GAO Lei(National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao 066004,China;State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110004,China;Shandong Guanzhou Co.,Ltd,Liaocheng 252500,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,秦皇岛066004 [2]东北大学轧制技术及连轧自动化国家重点实验室,沈阳110004 [3]山东冠洲股份有限公司,聊城252500

出　　处：《中国有色金属学报》2019年第12期2775-2784,共10页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金资助项目(51304172);东北大学轧制技术及连轧自动化国家重点实验室开放课题项目(2017RALKFKT010);燕山大学研究生创新资助项目(2017XJSS007)。

摘　　要：带材板形的在线表征和评价方法无法反映整体板形分布情况及每个区域的板形细节和变化趋势,不利于生产中对控制系统模型参数进行优化调整和后续的生产数据分析。为了提高在线板形表征的准确性,引入抛物线调配曲线法将带材宽度方向上板形测量值进行插值拟合,建立扩充后的板形数据与颜色值之间的映射关系,结合实际板形缺陷在整个带材宽度方向上的分布状况给出冷轧带材板形云图的绘制模型。在此基础上开发板形云图绘制控件并将其集成到1450 mm五机架冷连轧机组的板形控制系统中,应用结果表明板形在线云图监控系统绘制的板形云图可以反映整卷带材任意区域的板形分布细节及其变化趋势,实现对带材板形质量的在线精细监控。The flatness arithmetic average or standard deviation curve of each measurement section is usually used for the online representation and evaluation of cold rolled strip flatness.It can not reflect the overall flatness distribution,the flatness details and changing trend of each area,which is not conducive to the optimization of the control model parameters and the production data analysis.In order to improve the accuracy of the on-line flatness characterization,the allocated parabolic curve method was introduced for the interpolation of the measured flatness in the width direction of strip,thus forming a more dense panel data information.According to the flatness defect distribution across the whole strip,the mapping relation between the expanded flatness data and the color value was established,and the colorized flatness sonogram drawing model was proposed by the scanning line method.On this basis,the flatness sonogram drawing control was developed and integrated into the flatness control system of a 1450mm tandem cold mill.Applications show that the online sonogram monitoring system can reflect the details of flatness distribution and its changing trend in any area of the whole strip,and the on-line monitoring of strip flatness is realized accurately.

关 键 词：冷轧 板形测量 板形云图 数据拟合 板形控制 

分 类 号：TF33[冶金工程—冶金机械及自动化]