发明名称 |
COATED STEEL SHEET HAVING EXCELLENT CORROSION RESISTANCE AND ALKALI RESISTANCE |
摘要 |
<p>Disclosed is a coated steel sheet which can keep corrosion resistance even under strongly alkaline corrosive environments and has excellent corrosion resistance and alkali resistance. The coated steel sheet comprises a steel sheet, a chemical-conversion-treated coating film formed on the surface of the steel sheet, a primer coating film formed on the surface of the chemical-conversion-treated coating film, and a top coating film formed on the surface of the primer coating film. The chemical-conversion-treated coating film comprises a fluoride of titanium or a fluoride of zirconium, an oxide or hydroxide of titanium, and an oxide or hydroxide of zirconium. The primer coating film comprises an organic resin, an anti-corrosive pigment comprising one or two compounds independently selected from the group consisting of magnesium phosphate and zirconium phosphate, and barium sulfate.</p> |
申请公布号 |
WO2012001981(A1) |
申请公布日期 |
2012.01.05 |
申请号 |
WO2011JP03750 |
申请日期 |
2011.06.30 |
申请人 |
NISSHIN STEEL CO., LTD.;OKUBO, KENICHI;OWA, KATSUMI;UEDA, KOICHIRO |
发明人 |
OKUBO, KENICHI;OWA, KATSUMI;UEDA, KOICHIRO |
分类号 |
C23C22/34;B32B15/08;C23C28/00 |
主分类号 |
C23C22/34 |
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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