Wu Xiaoyan, Zhu Liguang, Mei Guohong, Yan Chunliang, Cao Shengli, Zhang Qingjun. Analysis and Research for Surface Sliver Defect of Steel Plate[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(1): 157-162. doi: 10.7513/j.issn.1004-7638.2017.01.028
Citation:
Wu Xiaoyan, Zhu Liguang, Mei Guohong, Yan Chunliang, Cao Shengli, Zhang Qingjun. Analysis and Research for Surface Sliver Defect of Steel Plate[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(1): 157-162. doi: 10.7513/j.issn.1004-7638.2017.01.028
Wu Xiaoyan, Zhu Liguang, Mei Guohong, Yan Chunliang, Cao Shengli, Zhang Qingjun. Analysis and Research for Surface Sliver Defect of Steel Plate[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(1): 157-162. doi: 10.7513/j.issn.1004-7638.2017.01.028
Citation:
Wu Xiaoyan, Zhu Liguang, Mei Guohong, Yan Chunliang, Cao Shengli, Zhang Qingjun. Analysis and Research for Surface Sliver Defect of Steel Plate[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(1): 157-162. doi: 10.7513/j.issn.1004-7638.2017.01.028
1. Hebei High Quality Steel Continuous Casting Engineering Technology Research Center, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063009, Hebei, China;
2. Analysis and Testing Center, North China University of Science and Technology, Tangshan 063009, Hebei, China
Scanning electron microscopy along with energy dispersive spectroscopy and optical metallographic microscope were employed to analyze the cause of formation of sliver defects on the surface of steel plate.The results show that the main reasons for the sliver defect of steel plate surface are the scratch,inclusion and crack of the slab.A thin layer of high temperature oxidation,a large number of small high temperature oxidation dots and signs of decarburization can be observed at the defects caused by Casting slab crack and scratch,while Na and K elements can be detected in the linear defect caused by inclusion.In order to reduce the linear defect on the surface of the steel plate,the author puts forward the corresponding improvement measures for the relevant reasons,which has certain reference for the practical production.
DownLoad: