发明名称 |
Zinc phosphate-treated galvanized steel sheet excellent in corrosion resistance and color tone |
摘要 |
A zinc phosphate treated galvanized steel sheet capable of securing sufficient white rust resistance and non-uniform dew condensation resistance without requiring a sealing chromate treatment has high white color and is excellent in color tone uniformity. The galvanized steel sheet has a zinc phosphate film containing at least 2% of Mg and 0.01 to 1% of at least one element selected from the group consisting of Ni, Co and Cu, and the adhesion value of the zinc phosphate film is at least 0.7 g/m<2>.
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申请公布号 |
US6649275(B1) |
申请公布日期 |
2003.11.18 |
申请号 |
US20020172864 |
申请日期 |
2002.06.17 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
ISHIZUKA KIYOKAZU;SHINDO HIDETOSHI |
分类号 |
C23C22/13;C23C22/12;(IPC1-7):B32B15/04 |
主分类号 |
C23C22/13 |
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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