C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 22/50 (2006.01) C23C 22/53 (2006.01) C23C 22/56 (2006.01) C23F 11/173 (2006.01) C23G 1/14 (2006.01) C23G 1/24 (2006.01)
Patent
CA 2335987
A process for the preliminary treatment of a metallic workpiece before coating is disclosed. The surface to be coated is cleaned with a solution containing a degreasing agent and coated with a corrosion-inhibiting layer. In order to obtain particularly advantageous conditions, the invention proposes treating the surface of the workpiece to be coated with a solution of polyaspartic acid for applying a corrosion-inhibiting layer.
L'invention concerne un procédé permettant de traiter de manière préalable une pièce métallique dont la surface à peindre est nettoyée à l'aide d'une solution contenant un dégraissant, puis est munie d'une couche inhibant la corrosion. Afin d'obtenir des conditions particulièrement avantageuses, il est prévu que la surface à peindre de la pièce soit traitée avec une solution d'acide polyaspartique afin d'appliquer une couche inhibant la corrosion.
Bohnes Dirk
Kluth Rainer
Lindemann Johannes
Manderscheid Karl
Aware Chemicals L.l.c.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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