Laser cladding of a thermoplastic powder on plastics

Details Laser cladding of a thermoplastic powder on plastics Laser cladding of a thermoplastic powder on plastics

B - Operations, Transporting

05

D

B05D 3/06 (2006.01) B05D 3/02 (2006.01) B05D 3/14 (2006.01) B05D 7/02 (2006.01)

Patent

CA 2738572

A method of applying a coating (17) of a thermoplastic material on a substrate (11) made of a polymeric material, wherein said thermoplastic material and said polymeric material are incompatible, comprising the following steps. Firstly, exposing the substrate and/or the powder to a plasma discharge (12) or the reactive gas stream resulting therefrom in order to obtain a plasma treated surface layer (14) introducing compatibility at the interface between substrate and coating. Secondly, laser cladding (15) the powder (16) on the substrate in order to form a coating on the substrate.

L'invention porte sur un procédé d'application d'un revêtement (17) d'un matériau thermoplastique sur un substrat (11) fait dun matériau polymère, ledit matériau thermoplastique et ledit matériau polymère étant incompatibles.  Ledit procédé comporte les étapes suivantes : tout dabord, l'exposition du substrat et/ou de la poudre à une décharge de plasma (12) ou au courant de gaz réactif résultant de celle-ci afin d'obtenir une couche de surface traitée au plasma (14), introduisant une compatibilité à l'interface entre le substrat et le revêtement et,  deuxièmement, une application de revêtement au laser (15) de la poudre (16) sur le substrat afin de former un revêtement sur le substrat.

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