Method and apparatus for forming items made of plastic...

Details Method and apparatus for forming items made of plastic... Method and apparatus for forming items made of plastic...

B - Operations, Transporting

29

C

B29C 35/02 (2006.01) B29B 13/02 (2006.01) B29B 13/08 (2006.01)

Patent

CA 2290099

Method and apparatus for forming items (A) made of polymeric material, comprising the operations of bringing a mass of polymeric material (14) to a pre-set fluid or viscous condition suitable for obtaining the plastic item (A) and of forming into the desired predetermined shape said mass of polymeric material (14). In order to bring said mass into the pre-set viscous condition, the method entails sending ultrasound vibrations on said mass of polymeric material (14).

L'invention concerne un procédé et un appareil servant à former des articles (A) en matière polymère. Ce procédé consiste à amener une masse de matière polymère (14) à un état fluide ou visqueux défini qui permette d'obtenir l'article (A) plastique. Le procédé consiste ensuite à donner par moulage à ladite masse de matière polymère (14) une forme définie voulue. Pour amener ladite masse de matière polymère (14) à l'état visqueux défini, on lui envoie des vibrations ultrasoniques.

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