发明名称 HEAVY CORROSION PREVENTIVE COATED STEEL HAVING EXCELLENT PEELING RESISTING CORROSION PREVENTABILITY
摘要 PROBLEM TO BE SOLVED: To provide heavy corrosion preventive coated steel having excellent peeling resisting corrosion preventability in response to that it is needed to extereamely extend the service life of the heavy corrosion preventive steel and it is necessary to obtain a method low in cost and satisfactory in productivity other than the coating of titanium metal. SOLUTION: An oxygen shielding coating film is formed on the surface of a heavy corrosion preventive covering consisting of a coated covering by polyurethane or the like. For example, the conventional heavy corrosion preventive covering or a heavy corrosion preventive covering obtained by subjecting a substrate with chemical conversion treatment is stacked with a coating film 5. By the oxygen shielding coating film, oxygen penetrating from the upper part of the covering is suppressed, and the destruction of the stuck boundaries is suppressed, so that the propagation of deterioration in the sticking from the edge parts and damaged parts of the covering can be suppressed. In this way, the corrosion preventive coated covering having higher reliability than heretofore one can be obtained. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2004332010(A) 申请公布日期 2004.11.25
申请号 JP20030125746 申请日期 2003.04.30
申请人 NIPPON STEEL CORP 发明人 YOSHIZAKI NOBUKI;MIMURA HIROYUKI;HARADA YOSHIYUKI;YAMAMOTO MASAHIRO
分类号 B05D7/14;B32B15/08;C23C28/00;C23F15/00;(IPC1-7):C23F15/00 主分类号 B05D7/14
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