发明名称 |
HOT-DIP ZN-ALLOY-PLATED STEEL SHEET |
摘要 |
This hot-dip Zn-alloy-plated steel sheet comprises: a steel sheet; a hot-dip Zn-alloy-plated layer arranged on a surface of the steel sheet; and a complex oxide coating film arranged on a surface of the hot-dip Zn-alloy-plated layer. The complex oxide coating film includes vanadium and a constituent component of the hot-dip Zn-alloy-plated layer, and the entire surface of the coating film satisfies the following formula (1): S[Hydroxide]/(S[Hydroxide]+S[Oxide])×100≦40. In formula (1): S[Oxide] is the area exhibited by a peak having a center at approximately 1022 eV ascribable to a Zn oxide in an intensity profile in XPS analysis of the surface of the complex oxide coating film; and S[Hydroxide] is the area exhibited by a peak having a center at approximately 1023 eV ascribable to a Zn hydroxide in an intensity profile in XPS analysis of the surface of the complex oxide coating film. |
申请公布号 |
US2016305003(A1) |
申请公布日期 |
2016.10.20 |
申请号 |
US201415037068 |
申请日期 |
2014.11.13 |
申请人 |
NISSHIN STEEL CO., LTD. |
发明人 |
SHIMIZU Atsuo;MATSUNO Masanori;YAMAMOTO Masaya;TAKETSU Hirofumi |
分类号 |
C23C2/06;C22C18/00;C23C2/26;C22C18/04;C23C2/40;C23C2/20 |
主分类号 |
C23C2/06 |
代理机构 |
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代理人 |
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主权项 |
1. A hot-dip Zn alloy-plated steel sheet comprising:
a steel sheet; a hot-dip Zn alloy plating layer disposed on a surface of the steel sheet; and a composite oxide film disposed on a surface of the hot-dip Zn alloy plating layer; wherein the composite oxide film comprises constituent components of the hot-dip Zn alloy plating layer and vanadium, and the composite oxide film satisfies, at a whole of a surface of the composite oxide film, following Equation 1:S[Hydroxide]S[Hydroxide]+S[Oxide]×100≤40(Equation1) S[Oxide] is a peak area derived from Zn oxide and centered at approximately 1022 eV in an intensity profile of the XPS analysis of the surface of the composite oxide film; and S[Hydroxide] is a peak area derived from Zn hydroxide and centered at approximately 1023 eV in the intensity profile of the XPS analysis of the surface of the composite oxide film. |
地址 |
Tokyo JP |