Method of application electrostatic of a powder on a support a state of surface, in particular, irregular

摘要

The invention relates to a method of covering a support (1) comprising a surface to be coated (2) comprising, in particular, a zone (5) having an irregular surface, in which it emits (6) a jet with a powder which is electrically charged in the direction of the support, it is established (16) an electrical potential at the level of the surface to be coated in such a way that the powder is attracted towards the said surface. In order to improve the deposition of powder in particular carried out at the level of the zone is irregular, use is made of a deflector (17) so as to modify the path of a portion of the particles emitted, in such a way that these particles deflected form a cloud (18) between the deflector and the zone is irregular, in order to ensure a homogeneous deposit independently of the direction (7) of the jet of powder, while maintaining the visibility of the surface irregularities.