Process for the manufacture of parts made of composite...

Details Process for the manufacture of parts made of composite... Process for the manufacture of parts made of composite...

B - Operations, Transporting

29

C

B29C 70/44 (2006.01)

Patent

CA 2659371

Method for producing a piece of a compound material made with a polymeric resin and a fibrous reinforcement from at least two subcomponents, which comprises the following steps: a) Providing the first subcomponent, partially cured in an autoclave curing cycle at a maximum temperature T1, between the gel temperature TG of the resin and the curing temperature TC of the resin, applied for a predetermined time TP1 such that the exothermic component of the first subcomponent is released to a degree above 50%; b) Providing the second subcomponent, in the fresh or cured state; c) Assembling the two subcomponents and joining them in an autoclave curing cycle at a maximum temperature T2 of between 90% and 100% of the resin curing temperature TC, applied for a predetermined time TP2.

L'invention se rapporte à un procédé de fabrication d'une pièce de matériau composé fabriquée avec une résine polymère et un renfort fibreux, à partir d'au moins deux sous-composants et qui consiste (a) à fournir le premier sous-composant cuit partiellement pendant un cycle d'autoclavage à une température maximale T1, comprise entre la température TG de gélification de la résine et la température TC de cuisson de la résine, appliquée pendant une période prédéterminée TP1, de sorte que le composant exothermique se libère du premier sous-composant à un degré supérieur à 50%; (b) à fournir le deuxième sous-composant, à l'état non altéré ou cuit, (c) à assembler les deux sous-composants et à les joindre dans un cycle d'autoclavage à une température maximale T2 comprise entre 90% et 100% de la température TC de cuisson de la résine, appliquée pendant un temps prédéterminé TP2.

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