Controlled atmospheric pressure resin infusion process

Details Controlled atmospheric pressure resin infusion process Controlled atmospheric pressure resin infusion process

B - Operations, Transporting

29

C

B29C 70/44 (2006.01)

Patent

CA 2484174

By evacuating the resin feed tank to a pressure below atmospheric pressure, employing cyclic compaction, and controlling the net compaction pressure, we are better able to control a resin infusion process, particularly a vacuum assisted resin transfer molding process, and produce aerospace-grade fiber- reinforced resin composite having fiber volume fractions and tool-side surface finishes comparable to or exceeding those made using an autoclave.

La mise sous pression, inférieure à la pression atmosphérique, d'un réservoir d'alimentation de résine, l'emploi de compactage cyclique, et la régulation de la pression de compactage permettent de mieux gérer un procédé d'infusion de résine, en particulier, un procédé de moulage par transfert de résine assisté par dépression, et de mieux produire un composite renforcé aux fibres, de qualité aérospatiale, possédant des fractions volumiques de fibre et des finis de surface côté outil comparables, ou supérieurs, à ceux fabriqués par autoclavage.

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