Method for making a composite extruded profile formed with...

B - Operations – Transporting – 29 – C

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B29C 70/50 (2006.01) B29B 15/10 (2006.01) B29C 47/02 (2006.01)

Patent

CA 2407075

The invention concerns a method for making a composite extruded profile (10) based on thermoplastic organic material reinforced with reinforcing fibres comprising steps which consist in bringing a plurality of continuous reinforcing yarns (11) in the presence of a thermoplastic organic material and in shaping the composite material, including at least the following steps: assembling in parallel continuous yarns (11) based on continuous glass fibres and a first thermoplastic material and forming by heating at least a consolidated strip (13) wherein the reinforcing fibres are impregnated with the first thermoplastic material; and introducing at least a strip (13) in a die (200) calibrated to the extruded profile cross-section and simultaneously introducing at least a second melted thermoplastic organic material (30) is said die (200) in contact with the strip(s), so as to obtain an extruded profile (10) consisting of at least a second thermoplastic organic material reinforced with at least a strip.

Le procédé de fabrication d'un profilé composite (10) à base de matière organique thermoplastique renforcée par des fibres de renforcement comprenant les étapes consistant à mettre une multiplicité de fils continus de renforcement (11) en présence d'une matière organique thermoplastique et à conformer la matière composite, comprend au moins les étapes suivantes: on rassemble de manière parallèle des fils continus (11) à base de fibres de verre continues et d'une première matière thermoplastique et l'on forme en chauffant au moins un ruban (13) consolidé dans lequel les fibres de renforcement sont imprégnées de la première matière thermoplastique, et on introduit au moins un ruban (13) dans une filière (200) calibrée à la section du profilé et l'on introduit simultanément au moins une deuxième matière organique thermoplastique (30) fondue dans ladite filière (200) au contact du ou des rubans, de manière à obtenir un profilé (10) constitué d'au moins une deuxième matière organique thermoplastique renforcée par au moins un ruban.

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