Mehrfachkorrosionsschutzsystem für Verchromte Dekorteile

Details

Veröffentlichungs-Nr.

EP3147389

Aktenzeichen

EP15186917

Anmeldetag

25. September 2015

Veröffentlichung

17. April 2019

Erteilung

17. April 2019

Rechtsraum

EP

IPC

C25D3/06C25D5/14C25D15/00C25D3/56

Abstract

The invention relates to a corrosion protection layer system for metal surfaces, said layer system comprising as the two top most layers: a) a discontinuous nickel-phosphorous layer and b) a chromium layer plated from a trivalent chromium electrolyte solution, as well as to a method of producing such a layer system. The inventive layer system is capable to combine the good corrosion resistance of the nickel-phosphorous layer against sodium chloride with the protective power of the chromium layer from the trivalent plating process against magnesium and calcium salts, especially without the need for any post-treatment.

Anmelder

Firmen

MacDermid Enthone GmbH
Volkswagen Aktiengesellschaft
Enthone GmbH

Land

🇩🇪 Deutschland

Fachgebiete