热轧粗轧坯优化剪切技术的研发与应用  

Development and application of optimized shearing technology for hot rolled roughing billet

作　　者：邓能辉 黄学忠 杨朝霖 吴昆鹏 韦代超 黄奕烨 DENG Nenghui;HUANG Xuezhong;YANG Chaolin;WU Kunpeng;WEI Daichao;HUANG Yiye(Design and Research Institute Co.,Ltd.,University of Science and Technology Beijing,Beijing 100083,China;Technical Research Institute,Guangxi BG New Materials Co.,Ltd.,Beihai 536017,China;Institute of Engineering Technology,University of Science and Technology Beijing,Beijing 100083,China;Guangxi BG Metal Rolling Co.,Ltd.,Beihai 536017,China)

机构地区：[1]北京科技大学设计研究院有限公司,北京100083 [2]广西北港新材料有限公司技术研究院,广西北海536017 [3]北京科技大学工程技术研究院,北京100083 [4]广西北港金压钢材有限公司,广西北海536017

出　　处：《冶金自动化》2022年第1期68-74,共7页Metallurgical Industry Automation

基　　金：北海市科技计划资助项目(BHSK2019017)。

摘　　要：为解决粗轧钢坯剪切过程中切除量控制不准确导致成材率低的问题,研发了一套用于粗轧坯智能优化剪切的系统。该系统首先基于机器视觉技术,通过图像处理得到头尾轮廓并计算出最优剪切距离,再结合辊道速度实时跟踪钢板上剪切线的行进位置,在最佳时刻控制飞剪启动,实现优化剪切的目的。目前,该系统应用在国内某热轧线,结果表明,该技术能够实时有效地检测钢板头部和尾部轮廓,找到最佳剪切尺寸,从而保证不规则的头尾形状被彻底切除,剪切线控制在±5 mm时准确度可达到95.4%以上。In order to solve the problem of low yield caused by inaccurate cutting quantity control in the process of rough rolling billet cutting, a set of intelligent optimal shear system for rough rolling billet is developed.Firstly, this system is based on machine vision technology, the head and tail contour are obtained by image processing and the optimal shear distance is calculated.Then, the moving position of the shear line on the steel plate is tracked in real time by the roller speed, and the flying shear start is controlled at the best time to achieve the purpose of optimizing the shear.At present, the system is applied to a domestic hot rolling line.The results show that the technology can effectively detect the head and tail contour of steel plate in real time and find the best shearing size, so as to ensure that the irregular head and tail are completely cut off, and the accuracy of shear line determination is more than 95.4%,and the range of loss is within 5 mm.

关 键 词：机器视觉 热轧 粗轧坯 最小二乘法 优化剪切 

分 类 号：TG335.11[金属学及工艺—金属压力加工]