Method and apparatus for electrically controlling a flow of...

Details Method and apparatus for electrically controlling a flow of... Method and apparatus for electrically controlling a flow of...

B - Operations, Transporting

29

C

B29C 41/08 (2006.01) B29D 99/00 (2010.01) B05B 5/08 (2006.01) B05D 1/04 (2006.01) B29C 41/52 (2006.01)

Patent

CA 2331746

The invention relates to a method for electrically controlling a flow of material, wherein a single- or multi-component, essentially polymer-based material (1), such as plastics elastomer or the like, is charged electrically (I) and sprayed (II) in an electrical field (E) to a three-dimensional mould (2)/target (3). The method of the invention makes use of the mould (2)/target (3) set at an electric potential and provided with two or more treatment blocks (Li) to be set at voltage levels different from each other, especially for coordinating the courses of sprayed material particles and the electrical field (E) affecting the same, in such a manner that each section/area of the mould/target surface forms a material layer of desirable thickness in the spraying cycle (II). The invention relates also to an apparatus operating in accordance with the method.

L'invention porte sur un procédé visant à réguler électriquement un flux de matériau. Selon ce procédé, un composant unique ou multiple, principalement un matériau (1) à base de polymère tel que matière plastique, élastomère ou analogue, est chargé électriquement (I) et pulvérisé (II) dans un champ (E) électrique sur un moule (2)/cible (3) tridimensionnel. Ce procédé se caractérise en ce que le moule (2)/cible (3) est placé à un certain potentiel électrique et est pourvu d'au moins deux blocs (Li) de traitement devant être mis à des niveaux de tension différents, notamment pour coordonner les déplacements des particules du matériau pulvérisé et le champ (E) électrique l'affectant de manière que chaque section/zone de la surface du moule/cible forme une couche de matériau d'une épaisseur souhaitable au cours du cycle (II) de pulvérisation. L'invention porte également sur un appareil fonctionnant conformément à ce procédé.

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