C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/18 (2006.01) C23C 22/36 (2006.01) C23C 22/83 (2006.01)
Patent
CA 2247141
Process for phosphatizing metal surfaces of steel, zinc coated or zinc-alloy coated steel and/or of aluminium where the metal surfaces are brought into contact with a phosphatizing solution containing zinc through spraying or immersion for a time between 3 seconds and 8 minutes; the solution contains 0.2 to 3 g/l zinc ions, 3 to 50 g/l phosphate ions, calculated as PO4, 1 to 150 mg/l manganese ions, 1 to 30 mg/l copper ions and one or several accelerators.
Procédé permettant de phosphater des surfaces métalliques en acier, en acier zingué ou recouvert d'un alliage de zinc, et/ou en aluminium, selon lequel on met en contact les surfaces métalliques, par projection ou immersion, pour une durée comprise entre 3 secondes et 8 minutes, avec une solution de phosphatation contenant du zinc. Cette solution contient 0,2 à 3 g/l d'ions zinc, 3 à 50 g/l d'ions phosphate, calculés en tant que PO¿4?, 1 à 150 mg/l d'ions manganèse, 1 à 30 mg/l d'ions cuivre, ainsi qu'un ou plusieurs accélérateurs.
Brands Karl-Dieter
Brouwer Jan-Willem
Geke Juergen
Gottwald Karl-Heinz
Kuhm Peter
Henkel Kommanditgesellschaft Auf Aktien
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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