Method for production of a substrate with a chromium VI free and cobalt-free passivation

A method for the manufacture of a substrate provided with a chromium VI-free and a cobalt-free passivation by the application of a first acidic passivation and a second alkaline passivation, containing a silane-modified and/or a siloxane modified silicate, with which an improved protection against c...

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Bibliographische Detailangaben
Hauptverfasser: Roth, Marcel, Klüppel, Ingo, Grossmann, Verena, Köster, Christopher, Reusmann, Gerhard
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method for the manufacture of a substrate provided with a chromium VI-free and a cobalt-free passivation by the application of a first acidic passivation and a second alkaline passivation, containing a silane-modified and/or a siloxane modified silicate, with which an improved protection against corrosion is achieved, an aqueous, acidic composition for passivating and a passivated substrate, and a device for applying the passivation.