Apparatus and method for spraying polymer

Details Apparatus and method for spraying polymer Apparatus and method for spraying polymer

B - Operations, Transporting

05

B

B05B 7/16 (2006.01) B05B 1/26 (2006.01) B05B 7/08 (2006.01) B05B 7/10 (2006.01) B05D 1/02 (2006.01)

Patent

CA 2406046

A method of and apparatus for spraying a molten thermoplastic polymer composition onto a substrate. The thermal spray apparatus of the present invention includes a source of pressurized molten polymer material (22 and 24), a source of pressurized hot gas (36), and a spray head (40) which is in fluid communication with the source of pressurized molten polymer material and a source of pressurized hot gas. The pressurized hot gas forms a flowstream as it exits the spray head and acts to atomize and transport the molten polymer material, in a molten state, to the substrate so that the substrate is coated. The molten polymer is atomized into relatively uniform particulate uniform particulates of molten plastic which aids in applying a uniform coating to the subject substrate.

Procédé et appareil pour pulvériser une composition polymère thermoplastique sur un substrat. L'appareil de pulvérisation thermique de l'invention comprend une source de matière polymère fondue sous pression (22 et 24), une source de gaz chaud sous pression (36) et une tête de pulvérisation (40) en communication fluidique avec la source de matière polymère fondue sous pression et la source de gaz chaud sous pression. Le gaz chaud sous pression forme un flux d'écoulement lorsqu'il sort de la tête de pulvérisation et fonctionne de manière à atomiser et transporter la matière polymère fondue, à l'état fondu, vers le substrat de manière à former un revêtement sur ce dernier. Le polymère fondu est atomisé sous forme de particules relativement uniformes de plastique fondu, ce qui aide à appliquer un revêtement uniforme au substrat désiré.

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