Method for coating a substrate and metal alloy vacuum...

C - Chemistry – Metallurgy – 23 – C

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Details

C23C 14/16 (2006.01) C23C 14/24 (2006.01) C23C 14/56 (2006.01)

Patent

CA 2681329

The invention relates to a method for coating a substrate (S) by continuously depositing on said substrate (S) a layer of a metal alloy including at least two metallic elements using a vacuum deposition facility (1) that comprises a vapour jet coating device (7) for spraying the substrate (S) with a vapour containing the metallic elements in a predetermined and constant relative proportion, wherein the vapour is previously accelerated to a sonic speed. The method is particularly intended for depositing Zn-Mg coatings. The invention also relates to a continuous metal alloy vacuum deposition facility (1) for implementing said method.

L'invention concerne un procédé de revêtement d'un substrat (S) selon lequel on dépose en continu sur le substrat (S) une couche d'alliage métallique comprenant au moins deux éléments métalliques, au moyen d'une installation de dépôt sous vide (1) comprenant un dispositif de revêtement par jet de vapeur (7), permettant de projeter sur le substrat (S) une vapeur contenant les éléments métalliques en une proportion relative prédéterminée et constante, la vapeur étant préalablement portée à une vitesse sonique. Le procédé est plus particulièrement destiné au dépôt de revêtements de Zn- Mg. Elle concerne également une installation de dépôt sous vide (1) en continu de revêtements formés d'alliages métalliques pour la mise en AEuvre du procédé.

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