C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/48 (2006.01) C23C 22/34 (2006.01) C23C 22/36 (2006.01) C23C 22/73 (2006.01)
Patent
CA 2438718
The present invention comprises a method for treating one or more multi-metal articles. The method comprises exposing the one or more articles to a first treatment composition capable of providing a conversion coating on steel- and zinc- based metal, and exposing the one or more articles to a second treatment coating composition suitable for providing a conversion coating on aluminum- based metal articles. Preferably, the first treatment composition comprises a zinc-phosphate conversion coating comprising, zinc ion, phosphate ion, manganese ion, and fluoride ion. Preferably, the second treatment composition comprises a ceramic composite treatment composition.
La présente invention concerne un procédé de traitement d'un ou plusieurs articles polymétalliques. Ce procédé consiste à exposer ce/ces article(s) à une première composition de traitement pouvant fournir un revêtement de conversion sur un métal à base d'acier et de zinc, et à exposer ce/ces article(s) à une deuxième composition de traitement propre à fournir un revêtement de conversion sur des articles métalliques à base d'aluminium. La première composition de traitement comporte de préférence un revêtement de conversion zinc-phosphate contenant un ion zinc, un ion phosphate, un ion manganèse et un ion florure. La deuxième composition de traitement comporte de préférence une composition de traitement composite céramique.
Carlson Lawrence R.
Dolan Shawn E.
Kay Michael J.
Henkel Kommanditgesellschaft Auf Atkien
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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