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热轧带钢表面缺陷在线检测的方法与工业应用
引用本文:徐科,杨朝霖,周鹏.热轧带钢表面缺陷在线检测的方法与工业应用[J].机械工程学报,2009,45(4).
作者姓名:徐科  杨朝霖  周鹏
作者单位:北京科技大学高效轧制国家工程研究中心,北京,100083
基金项目:国家自然科学基金,国家科技支撑计划 
摘    要:热轧带钢表面的温度高,辐射光强,并且存在着水、氧化铁皮、光照不均等现象,与冷轧带钢的表面存在着很大的差别.将线阵CCD摄像机作为图像采集装置,用绿色激光线光源作照明,通过窄带滤色镜滤除钢板表面的辐射光,从而提高了缺陷对比度.根据热轧带钢表面的特点提出新的缺陷检测与识别算法流程,通过增加4种不同类型的缺陷检测步骤,去除了大量由水、氧化铁皮等造成的伪缺陷,在保证缺陷检出率的同时,减小缺陷的误识率.经在线应用,该方法可以满足在线检测的要求,缺陷的检出率达95%以上,识别率达85%以上.

关 键 词:热轧带钢  表面缺陷  在线检测  表面检测

Technology of On-line Surface Inspection for Hot-rolled Steel Strips and Its Industrial Application
XU Ke,YANG Chaolin,ZHOU Peng.Technology of On-line Surface Inspection for Hot-rolled Steel Strips and Its Industrial Application[J].Chinese Journal of Mechanical Engineering,2009,45(4).
Authors:XU Ke  YANG Chaolin  ZHOU Peng
Affiliation:National Engineering Research Center of Advanced Rolling Technology;University of Science and Technology Beijing;Beijing 100083
Abstract:Surface of hot-rolled steel strips is different from surface of cold-rolled steel strips, because it has high-temperature and intense radiation.Moreover, there are waters, scales, uneven illumination on hot-rolled steel strips.Line-scan CCD cameras are introduced to capture images, and green linear lasers are applied for illumination.Radiation of hot-rolled steel strips is filtered by narrow-band filter lens, and contrast of defects is improved.According to the characteristics of hot-rolled steel strips, a ...
Keywords:Hot-rolled steel strip Surface defect On-line inspection Surface inspection  
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