摘要
保护渣缺陷、气泡缺陷、夹杂物缺陷和擦划伤缺陷是冷轧薄板表面典型的4种线性缺陷,由于此4种线性缺陷宏观形貌相似,优化前的表检系统难以对其进行准确区分,给线性缺陷的判定、溯源及工艺改进造成了极大的困难。通过大量取样分析,并对各线性缺陷的表检结果和实物形貌以及微观特征进行了对比,明确了各线性缺陷的宏观和微观形貌特征,并以此为依据优化了线性缺陷表检系统的判定规则和图库,使冷轧薄板表面线性缺陷判定的准确率由80%提高至90%。
Mold flux defect,bubble defect,inclusion defect and cold rolling scratches are the four typical linear defects on the surface of cold-rolled sheets.Due to the similarity of the macroscopic morphology for these four defects,it is difficult to accurately distinguish them by surface inspection system,which causes difficulty in the judgment,traceability and process improvement.The surface inspection results,physical morphologies and microscopic characteristics of each linear defect were compared through large numbers of sampling analysis,and the macroscopic and microscopic characteristics of every kind of linear defect were clarified.Based on this,the judgment rules and the defect library of the surface inspection system are optimized,thus the accuracy rate of defect judgment is improved from 80%to 90%.
作者
王林
于洋
倪有金
付光
王畅
高小丽
WANG Lin;YU Yang;NI You-jin;FU Guang;WANG Chang;GAO Xiao-li(Department of Thin Sheet,Research Institute of Technology of Shougang Group Co.,Ltd.,Beijing 100043,China;Manufacturing Department,Beijing Shougang Co.,Ltd.,Qian'an 064404,Hebei,China)
出处
《中国冶金》
CAS
北大核心
2022年第9期105-112,共8页
China Metallurgy
关键词
线性缺陷
保护渣
气泡
夹杂物
擦划伤
表检系统
linear defect
mold flux
bubble
inclusion
scratch
surface inspection system
