E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
E04C 5/07 (2006.01) B29C 70/22 (2006.01) B29C 70/24 (2006.01)
Patent
CA 2303259
Reinforcement preforms and methods for making same for use in fiber-reinforced composite materials structures are disclosed, in which the reinforcement preforms comprise first and second reinforcement preform elements which include strength reinforcement fibers that are in desired directional orientation. The first element has a cross-fiber surface which extends transverse of its constituent strength reinforcement fibers and is in contacting juxtaposition to a selected surface region of the second element, forming an abutment therebetween. Abutment strength reinforcing fibers, which may optionally be introduced in situ by a continuum of fibers, such as a yarn or thread, extend through at least a portion of said second element and its said selected surface region, the abutment, said cross-fiber edge surface, and into the first element substantially in the direction of orientation to its constituent strength fibers to which its cross-fiber surface is transverse.
La présente invention concerne des renforts préformés, ainsi que les procédés de réalisation correspondants, lesquels renforts sont destinés aux structures de composites à fibres. En l'occurrence, les renforts préformés comprennent un premier et un second élément de renfort préformé qui intègrent fibres de renfort de force respectant une orientation définie. Le premier élément comporte une surface à fibres transversales qui croisent les fibres de renfort de force et qui sont en contact par juxtaposition avec une zone superficielle choisie du second élément, entre lesquelles elles forment une liaison bout-à-bout. Les fibres de renfort de force de la liaison bout-à-bout, qui peuvent éventuellement être introduites sur site en utilisant un continuum de fibres telles qu'un fil ou un filé, traversent au moins une partie du second élément ainsi que le premier élément, sensiblement selon le sens des fibres de renfort le constituant et par rapport à quoi sa surface des fibres transversales est en position transversale.
Albany International Techniweave Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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