TWI647344B

An object of the present invention is to provide a multilayer plating film with excellent corrosion resistance. The present invention provides a multilayer plating film containing at least a chrome plating film and a tin-nickel plating film, the chrome plating film being the outermost layer, and the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAGAO, TOSHIMITSU, OTSUKA, KUNIAKI, TSUJIMOTO, TAKAMITSU, HARA, KENJI, KATAYAMA, JUNICHI
Format: Patent
Sprache:chi
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Beschreibung
Zusammenfassung:An object of the present invention is to provide a multilayer plating film with excellent corrosion resistance. The present invention provides a multilayer plating film containing at least a chrome plating film and a tin-nickel plating film, the chrome plating film being the outermost layer, and the tin-nickel plating film being formed below the chrome plating film by using an acidic tin-nickel alloy plating solution containing a divalent tin compound, a nickel compound, a triamine compound, and a fluoride.