Process and device for the surface treatment of a substrate...

Details Process and device for the surface treatment of a substrate... Process and device for the surface treatment of a substrate...

B - Operations, Transporting

29

C

B29C 71/00 (2006.01) B05D 7/24 (2006.01) D06B 1/14 (2006.01) D06M 10/02 (2006.01)

Patent

CA 2253082

Device for the surface treatment of a substrate (3) by electrical discharge between two electrodes in a gaseous mixture able to generate byproducts (for example powders) able to be deposited on the electrodes, in which one (9) of the electrodes is a roller on which the substrate can be applied, means having been provided to place the roller and substrate in rotation and inject the gaseous mixture between the electrodes, the device being remarkable in that the second electrode is an electrode roller (11) on which the substrate in movement can also be applied, and which is placed parallel to the other roller (9) at an appropriate interval. Through this placement, the substrate (3) protects each electrode (11) and prevents it from being covered with powdered during treatment, and the corresponding clogging up, so that the device can operate continually.

Dispositif pour le traitement de surface d'un substrat (3) par décharge électrique entre deux électrodes dans un mélange gazeux susceptible de générer des sous-produits (par exemple des poudres) pouvant se déposer sur les électrodes, dans lequel l'une (9) des électrodes est un rouleau sur lequel peut être appliqué le substrat, des moyens étant prévus pour entraîner le rouleau et le substrat en rotation et pour injecter le mélange gazeux entre les électrodes, le dispositif étant remarquable en ce que la seconde électrode est un rouleau-électrode (11) sur lequel le substrat en défilement peut également être appliqué, et qui est disposé parallèlement à l'autre rouleau (9) à un intervalle approprié. Grâce à cet agencement, le substrat (3) protège chaque électrode (11 ) et évite qu'elle ne soit recouverte de poudre en cours de traitement, ainsi que l'encrassement correspondant, ce qui permet un fonctionnement en continu du dispositif.

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