Method for producing composite elements

Details Method for producing composite elements Method for producing composite elements

B - Operations, Transporting

29

C

B29C 39/02 (2006.01) B29C 39/12 (2006.01)

Patent

CA 2486586

The invention relates to a method for producing composite elements which have the following layer structure: (i) 2 - 20 mm metal, plastic or wood, (ii) 10 - 300 mm plastic, (iii) 2 - 20 mm metal, plastic or wood. The initial materials are introduced in a liquid state for the production of (ii) in at least two steps in the area between (i) and (iii). The area which is to be filled in the last filling step has a volume of 0.1 m3 1.5 m3 and the height which is to be filled is less than 25 mm.

L'invention concerne un procédé de production d'éléments composites ayant la structure en couches suivante: (i) 2 à 20 mm de métal, matière plastique ou bois, (ii) 10 à 300 mm de matière plastique, (iii) 2 à 20 mm de métal, matière plastique ou bois. Selon ce procédé, on introduit les matières premières destinées à la production de (ii) à l'état fluide en au moins deux étapes dans l'espace compris entre (i) et (iii). L'espace à remplir lors de la dernière opération de remplissage, a un volume de 0,1 m?3¿ à 1,5 m?3¿ et la hauteur de l'espace à remplir est inférieure à 25 mm.

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