Reinforced channel-shaped structural member methods

Details Reinforced channel-shaped structural member methods Reinforced channel-shaped structural member methods

B - Operations, Transporting

32

B

B32B 5/18 (2006.01) B29C 44/12 (2006.01) B29C 70/00 (2006.01) B29D 22/00 (2006.01) B32B 15/08 (2006.01) B62D 29/00 (2006.01) E04C 3/28 (2006.01)

Patent

CA 2361537

A part having a non-planar wall is reinforced using a preform laminate having a shape which conforms to the non-planar wall. The preform laminate is comprised of a foil or sheet carrier (32) and an outer layer of an unexpanded foam forming resin layer (30), which is inserted against the part with the resin layer disposed toward the non-planar wall. The resin layer is cured and expanded by application of heat to form a structural reinforcing foam.

La présente invention concerne une pièce présentant une paroi non plane, renforcée au moyen d'un laminé de préforme dont la forme épouse la forme de la paroi non plane. Le laminé de préforme est constitué d'une feuille support (32) et d'une couche extérieure faite d'un film en résine génératrice de mousse, non expansée (30), et que l'on insert contre la pièce, la couche de résine étant tournée vers la paroi non plane. En faisant durcir et gonfler la couche de résine par application de chaleur, on forme une mousse de renfort structurel.

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