Powder spraying device

Details Powder spraying device Powder spraying device

B - Operations, Transporting

05

B

B05B 5/03 (2006.01)

Patent

CA 2273830

The invention relates to a powder spraying device for electrostatic powder coating of workpieces. In order to achieve a particularly good powder particle charge, the powder spraying device (10) contains a chamber (1) into which a powder/air mixture (PL) is introduced crosswise to the spraying device (13) by means of a feed pipe (11). A ground electrode (5) and multiple high-voltage electrodes (7) are placed in the chamber (1). All electrodes (5, 7) are swept by purified air (RLE, RLH) in order to prevent powder deposits.

L'invention concerne un dispositif de pulvérisation pour le poudrage électrostatique de pièces. En vue d'obtenir une charge particulièrement bonne des particules de poudre, le dispositif selon l'invention (10) comprend une chambre (1) dans laquelle est introduit, par un conduit (11), perpendiculairement à la direction de pulvérisation (13), un mélange poudre/air (PL). Dans la chambre (1) sont disposées une électrode de terre (5) et plusieurs électrodes haute tension (7). Toutes les électrodes (5, 7) sont balayées par de l'air épuré (RLE, RLH) pour éviter des dépôts de poudre.

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