Sandwich structure and method of producing the same

Details Sandwich structure and method of producing the same Sandwich structure and method of producing the same

B - Operations, Transporting

29

C

B29C 45/14 (2006.01) B29C 44/04 (2006.01) B29C 45/16 (2006.01) B32B 7/00 (2006.01) B32B 37/00 (2006.01)

Patent

CA 2704143

The present invention concerns a method of producing a sandwich structure which is easy to produce and which has particular physical and/or chemical properties. To achieve that there is proposed a method of producing that sandwich structure which has the following steps: a) introducing a first cover layer (3) into an injection molding mold, b) introducing a second cover layer (3) into the injection molding mold, c) closing the injection molding mold, d) injecting a core material into the closed injection molding mold between the first and second cover layers (3) by means of injection molding, e) hardening of the core material so that a core layer (2) is formed between the two cover layers (3), and f) opening the injection molding mold and removing the sandwich structure (3) from the mold. Figure 1

L'invention concerne un procédé de fabrication d'une structure sandwich qui soit de fabrication simple et qui présente des propriétés physiques et/ou chimiques particulières. Pour y parvenir, l'invention propose un procédé de fabrication de cette structure sandwich qui comprend les étapes suivantes : a) mise en place d'une première couche de recouvrement (3) dans un moule d'injection ; b) mise en place d'une deuxième couche de recouvrement (3) dans le moule d'injection ; c) fermeture du moule ; d) injection, par moulage par injection, d'un matériau d'âme dans le moule fermé entre la première et la deuxième couches de recouvrement (3) ; e) durcissement du matériau d'âme, de sorte qu'une couche d'âme (2) est formée entre les deux couches de recouvrement (3) ; et f) ouverture du moule et démoulage de la structure sandwich (3).

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