Process for the production of a composite material panel...

Details Process for the production of a composite material panel... Process for the production of a composite material panel...

B - Operations, Transporting

29

C

B29C 45/16 (2006.01) B29C 45/14 (2006.01) B29C 70/48 (2006.01) B29C 70/54 (2006.01)

Patent

CA 2188629

For the production of a composite material sandwich panel having an open cell core (18) and at least one skin formed from resin impregnated fibres (20), the core (18) and unimpregnated fibres (20) are placed in a mould (10) and a tight membrane (22) and an adhesive film (24) are interposed in this order between the fibres and the core. After closing the mould (10), a single heat cycle makes it possible to polymerize the adhesive (20), in order to seal the cavities of the open cell core (18) with the membrane, followed by the injection of the resin under pressure into the fibres (20) and finally polymerize said resin prior to the removal of the panel from the mould.

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