Investigation of little bright spot defect on hot-dip galvanized steel sheets

摘要：

　　Little bright spot defects on galvanized steel sheets were studied by optical microscope,scanning electron microscope( SEM) and Energy Dispersive Spectrometer ( EDS ) in this study.The research shows that the coating thickness of little bright spot defect is much lower than normal area which caused by the substrate defect justly under little bright spot,and when skin passed,the little bright spot defect area can not touch with skin pass roll which result in the surface of little bright spot is flat while normal area is rough.The different coating morphologies have different effects on the reflection of light and which cause the little bright spot defect lighter than normal area.

关键词： little bright spot defect coating morphologies coating thickness substrate defect

作者: CUI Lei LIU Yonggang WANG Chunxi LI Dechao YU Jie

作者单位: Auto Sheet Strategic Business Unit,Maanshan Iron & Steel Co.,Ltd.,Maanshan 243000,Anhui,China No. 4 Steelmaking and Rolling Mill,Maanshan Iron & Steel Co.,Ltd.,Maanshan 243000,Anhui,China

会议类型: 国内会议

会议名称: 第五届宝钢学术年会

会议地点: 上海

会议语种:英文

页码: 1-5

在线出版日期: 2013-06-01（万方平台首次上网日期，不代表论文的发表时间）