摘要
针对某热镀锌产线出现的3种典型翘皮类缺陷,采用扫描电子显微镜分析了缺陷的表面形貌和基体组织,用能谱仪分析了缺陷表面及截面的成分,进而对缺陷产生的工序进行鉴别。结果表明:1号试样表面存在还原状氧化铁,截面存在氧化铁及大量的氧化圆点,部分翘皮区域存在高温焊合,圆点由铸坯表面缺陷遗传到后道工序引起;2号试样表面存在还原状氧化铁,截面存在氧化铁,部分翘皮区域存在高温焊合,圆点由热轧过程引起;3号试样不存在氧化铁及氧化圆点,翘皮缺陷产生于冷态。
Aiming at three kinds of typical warping defects in a hot-dip galvanizing production line,the surface morphology and matrix structure of the defects were analyzed by scanning electron microscope,and the composition of the surface and cross section of the defects was analyzed by energy dispersive spectrometer,and then the process of the defects was identified.The results show that there were reduced iron oxide on the surface of No.1 sample,iron oxide and a large number of oxidation dots on the cross section,and high temperature welding in some warping areas,the dots were caused by the surface defects of the slab inherited to the subsequent process.There was reduced iron oxide on the surface of No.2 sample,iron oxide on the cross section,and high temperature welding in some warping areas,the dots were produced by hot rolling process.There was no iron oxide and oxide dots in sample 3,the warping defects were produced in the cold state.
作者
刘向明
王伟
陈立平
侯永亮
王勇
LIU Xiangming;WANG Wei;CHEN Liping;HOU Yongliang;WANG Yong(Shougang Jingtang United Iron&Steel Co.,Ltd.,Tangshan 063200,China)
出处
《理化检验（物理分册）》
CAS
2024年第2期47-50,共4页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
翘皮缺陷
氧化圆点
缺陷
镀锌板
氧化铁
warping defect
oxidation dot
defect
galvanized plate
iron oxide
