Coated reshaped aluminum semi-finished products and/or...

C - Chemistry – Metallurgy – 23 – C

Patent

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Details

C23C 24/00 (2006.01) B05D 3/02 (2006.01) B05D 7/00 (2006.01) B05D 7/14 (2006.01) B21D 22/20 (2006.01) B32B 15/08 (2006.01) C08G 18/79 (2006.01) C23C 2/00 (2006.01) B05D 3/12 (2006.01)

Patent

CA 2440998

The invention relates to chemistry and concerns more particularly converted reshaped aluminium semi-finished products and/or components which are coated with a two-step hardening/cross-linking coating agent and a method for the production thereof. The aim of the invention is to produce coated reshaped aluminium semi finished products and/or components which, as semi-finished products can be re-shaped and hardened at high temperatures. As a result, the coated reshaped aluminium half-products and/or components which are coated with the least two-step hardening/cross-linking coating agents are at least partially hardened/cross-linked whereby the formed coating film is elastic. The invention also relates to a method for coating the aluminium semi-finished products and/or components with at least one coating agent and the layer(s) in a first step are covered with film and partially hardened/cross-linked and substantially hardened/cross-linked in one at least second step during and/or after at least one reshaping process.

L'invention concerne, dans le domaine de la chimie, des demi-produits et/ou des éléments en aluminium façonnés et enduits d'un agent d'enduction durcissable/réticulable en deux étapes, ainsi qu'un procédé de production associé. L'inventions vise à réaliser des demi-produits et/ou des éléments en aluminium façonnés et enduits, qui, en tant que demi-produits, sont façonnables et qui sont durcis à hautes températures. A cet effet, les demi-produits et/ou éléments en aluminium façonnés et enduits selon l'invention sont recouverts d'un agent d'enduction durcissable/réticulable en au moins deux étapes, et ils sont durcis/réticulés seulement partiellement, le film d'enduction ainsi formé étant élastique. La présente invention porte également sur un procédé pour enduire des demi-produits et/ou des éléments en aluminium avec au moins un agent d'enduction, former un film avec la(les) couche(s) et la(les) faire durcir/réticuler partiellement dans une première étape, et, pendant et/ou après au moins un processus de façonnage, les durcir/réticuler au cours d'une deuxième étape.

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