发明名称 |
MOLTEN ZN-AL ALLOY-PLATED STEEL SHEET AND MANUFACTURING METHOD THEREOF |
摘要 |
<p>A molten Zn-Al alloy-plated steel sheet with excellent blackening resistance and corrosion resistance, and a manufacturing method thereof are provided. On at least one surface of the steel sheet, a molten Zn-Al alloy plating layer is formed having a composition comprising, in mass%, Al: 3.0-6.0%, Mg: 0.2-1.0% and Ni: 0.01-0.10%, the remainder consisting of Zn and unavoidable impurities, and further, a chemical conversion film containing molybdates is formed as the upper layer of said molten Zn-Al alloy plating layer. By this means, the surface of the plating layer has a structure containing, by surface area ratio, 1-50% of a Zn-Al-Mg ternary eutectic, and, by means of the material / structure of the plating layer and also the chemical conversion film containing molybdates formed on the upper layer of said plating layer, this molten Zn-Al alloy plated steel sheet has excellent blackening resistance and corrosion resistance.</p> |
申请公布号 |
WO2013022118(A1) |
申请公布日期 |
2013.02.14 |
申请号 |
WO2012JP70719 |
申请日期 |
2012.08.08 |
申请人 |
JFE GALVANIZING & COATING CO., LTD.;JFE STEEL CORPORATION;FUJISAWA, HIDESHI;OOI, TOSHIHIKO;FURUTA, AKIHIKO;SATOH, SUSUMU;IMOKAWA, TORU |
发明人 |
FUJISAWA, HIDESHI;OOI, TOSHIHIKO;FURUTA, AKIHIKO;SATOH, SUSUMU;IMOKAWA, TORU |
分类号 |
C23C2/06;C23C18/04;C23C22/40;C23C28/00 |
主分类号 |
C23C2/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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