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A Study on Detecting Dross in Coating Layer on Hot-dip Galvanizing Steels  

김유철 (순천대학교 공과대학 재료금속공학과)
이호종 (순천대학교 공과대학 재료금속공학과)
Publication Information
Journal of the Korean institute of surface engineering / v.36, no.6, 2003 , pp. 466-474 More about this Journal
Abstract
To develop a method of detecting dross in coating layer on hot-dip galvanizing steel, chemical etching behavior of the artificial coating layers with top and bottom dross were investigated. After chemical etching with the mixture of picric acid and sodium thiosulfate, each of the top and bottom dross take its distinct color, and alloy layer in coating is also observed. Defects in the coating layers of HGI(hot rolled galvanized iron), CGI(continuous galvanized steel sheet) and GA(galvannealed steel) were analysed, and methods of dross detection which can be applied to inspection process in manufacture were suggested.
Keywords
Dross; Chemical etching; Galvanizing;
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  • Reference
1 高村 日出夫ら, 議と鋼, 81 (1995) 43   PUBMED
2 大居利彦ら, 材料とプロセス, 5 (1992) 1736
3 山口周ら, 材料とプロセス, 7 (1994) 1532
4 山口周ら, 材料とプロセス, 7 (1994) 1530
5 山口 洋. 久松 敬弘, 議と綱, 60 (1974) 96   PUBMED
6 山口 洋. 久松 敬弘, 鉛と量鉛, 56 (1973) 11,19
7 A. R. Borizillo, Trans. ASM, 62 (1969) 729
8 山口 洋. 久松 弘, 議と鋼, 60 (1974) 96   PUBMED
9 R. R. Miller, Liquid-Metals Handbook, 2nd ed., U.S. Govt. Print. Office,(1952)41
10 加接外昭. 高村 日出未, 望月一雄, 森延行, 加騎俊之, CAMP-ISIJ, 9 (1996) 1072