基于荧光磁粉成像的小方坯表面缺陷自动检测方法  

Automatic detection of billet surface defects based on fluorescent magnetic powder imaging

作　　者：杨水山[1] 何永辉[1] 吴振平[1] YANG Shuishan;HE Yonghui;WU Zhenping(Research Institute,Baoshan Iron & Steel Co. ,Ltd. , Shanghai 201999, China)

机构地区：[1]宝山钢铁股份有限公司中央研究院,上海201999

出　　处：《宝钢技术》2021年第3期12-15,共4页Baosteel Technology

摘　　要：荧光磁粉成像能放大和强化小方坯表面细微缺陷的显现效果。将小方坯荧光磁粉成像和机器视觉检测技术结合起来,设计1套自动化检测系统,实现小方坯的表面磁化及磁粉液喷淋、紫外线照明和荧光图像采集和处理,最终完成缺陷的定位和识别。该系统已经在工业现场得到稳定应用,提高了缺陷检测的效率和精度。Fluorescent magnetic powder imaging can enlarge and enhance the appearance of billet surface defects.The billet fluorescent magnetic powder imaging and machine vision detection technology are combined to design a set of automated detection system,achieving the surface magnetization of billet and magnetic powder spray,ultraviolet lighting and fluorescence image acquisition and processing,and finally complete the positioning and identification of defects.The system has been used steadily in finishing unit,improving the efficiency and accuracy of defect detection.

关 键 词：机器视觉 荧光磁粉 缺陷检测 

分 类 号：TF399[冶金工程—冶金机械及自动化]