A method for manufacturing discrete compression molded...

B - Operations – Transporting – 29 – C

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B29C 70/34 (2006.01) F41B 5/00 (2006.01) F41B 5/10 (2006.01)

Patent

CA 2216397

The method of the present invention comprises inserting a moldable slug having a plurality of longitudinal oriented resin impregnated predominantly glass fiber filaments into a bow limb profiling mold. The mold consists of two halves, the first half containing a female cavity and a second half having a matching fitted male section. The cavity receives a predetermined volume and weight of continuous longitudinal fibrous reinforcement material and plastic resin matrix material. Heat and pressure are applied during initial curing and the uncured end is removed. The slug is then finally cured and the slug is severed to form a right limb portion and a left limb portion.

Cette invention concerne une méthode d'insertion d'une ébauche moulable composée de fibres principalement de verre orientées longitudinalement et imprégnées de résine dans un moule de profilage de branches d'arc. Le moule est en deux coquilles, la première comportant une empreinte en creux et la seconde, une section en relief de même contour. L'empreinte en creux reçoit une masse volumique prédéterminée de fibres continues longitudinaux de renfort et un matériau matrice en résine plastique. De la chaleur et de la pression sont appliquées durant la cuisson initiale et le bout non cuit est enlevé avant traitement de cuisson final du produit moulé. Au terme de la cuisson, l'ébauche est séparée en deux éléments de branche d'arc, un droit et un gauche.

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