C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/83 (2006.01) C23C 22/78 (2006.01) C25D 9/00 (2006.01)
Patent
CA 2190945
A process is described for coating phosphated metal substrates with one or more organic coatings, in which after phosphating and before application of a first organic coating, the phosphated metal substrates are treated with an aqueous solution which contains 5 to 10000 ppm of dissolved titanium, vanadium, molybdenum, silver, tin, antimony and/or one or more elements of atomic numbers 57 to 83 in the form of inorganic and/or organic compounds, wherein the phosphated metal substrates are additionally connected as a cathode during the entire treatment or for part of the duration of the treatment.
L'invention concerne un procédé de revêtement de substrats métalliques phosphatés à l'aide d'un ou de plusieurs revêtements organiques. Après la phosphatation et avant l'application du premier revêtement organique, les substrats métalliques phosphatés sont traités avec une solution aqueuse qui contient entre 5 et 10.000 ppm de titane, de vanadium, de molybdène, d'argent, d'étain, d'antimoine dissous et/ou d'un ou de plusieurs éléments des nombres atomiques compris entre 57 et 83, sous forme de composés inorganiques et/ou organiques. Pendant toute la durée du traitement ou pendant une partie du traitement, les substrats métalliques phosphatés sont également branchés en cathode.
Buttner Gabriele
Kimpel Matthias
Klein Klausjorg
Herberts Gesellschaft Mit Beschrankter Haftung
Kirby Eades Gale Baker
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