热连轧带钢宽度封锁溯源研究及应用  

Research and application of width blockade tracing for hot-rolled strip

作　　者：谢孟 李维刚[1] 王优龙 朱红林 XIE Meng;LI Wei-gang;WANG You-long;ZHU Hong-lin(School of Information Science and Engineering,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;Research Institute,Baoshan Iron and Steel Co.,Ltd.,Shanghai 201900,China)

机构地区：[1]武汉科技大学信息科学与工程学院,湖北武汉430081 [2]宝山钢铁股份有限公司研究院,上海201900

出　　处：《中国冶金》2023年第2期121-128,共8页China Metallurgy

基　　金：国家自然科学基金资助项目(51774219)。

摘　　要：热连轧带钢宽度封锁溯源是指带钢轧制完成后,对宽度封锁带钢的缺陷类型进行判断,并对导致宽度封锁的原因进行追溯,以为现场技术人员提供参考。基于真实的热连轧带钢生产过程数据,先使用卡尔曼滤波方法对带钢全长宽度数据进行去噪,然后使用高斯拟合寻峰等方法提取带钢宽度特征并建立宽度缺陷分类规则,最后结合实际生产过程建立热连轧带钢宽度封锁溯源模型。将湛江1780mm热连轧机组3个月内出现的582条宽度封锁带钢用于模型性能测试,结果表明,模型对宽度缺陷的分类准确率达到96.72%,对宽度封锁溯源的准确率达到94.16%,有效实现了热连轧带钢宽度封锁的自动分类与自动溯源。Tracing of width blockade for hot-rolled strip refers to judging the defect type of width blockade strip after the strip rolling is completed,and tracing the causes of width blockade,so as to provide a reference for on-site technicians.Based on the real hot strip production process data,firstly,Kalman filter method was used to denoise the fulllength width data of the strip,then Gauss fitting and peak searching methods were used to extract the width characteristics of the strip and width defect classification rules were established.Finally,combined with the actual production process,width blockade traceability model of hot strip was established.The 582strips with width blockade of Zhanjiang 1780mm hot strip mill in three months were used for the model performance test.The results show that the classification accuracy of the model for width defects is 96.72%,and the traceability accuracy for width blockade is 94.16%,which effectively realizes the automatic classification and automatic traceability for width blockade of hot-rolled strip.

关 键 词：热轧带钢 宽度封锁 特征提取 缺陷分类 封锁溯源 

分 类 号：TG335.56[金属学及工艺—金属压力加工]