B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 70/54 (2006.01) B29B 11/16 (2006.01)
Patent
CA 2683606
The invention relates to a method for making a composite material in which at least one reinforcement thread is deposited on a surface according to a path having at least one curved area on the deposition surface, wherein the reinforcement thread is connected to the surface by a polymeric binder, characterised in that a twist is applied to the reinforcement thread before the deposition thereof at least in order to compensate the length differences of the extreme paths of the thread on either side of the width as measured in a direction parallel to the deposition surface; the invention also relates to the composite materials thus obtained.
L'invention concerne un procédé de fabrication d'un matériau composite dans lequel au moins un fil de renfort (F) est déposé sur une surface, selon une trajectoire présentant au moins une zone courbe sur la surface de dépose, dans lequel le fil de renfort (F) est lié à la surface au moyen d'un liant polymérique, caractérisé en ce qu'une torsion est appliquée au fil de renfort, en amont de sa dépose, de façon à au moins compenser les différences de longueur que présentent les trajectoires extrêmes du fil de part et d'autre de sa largeur mesurée parallèlement à la surface de dépose, ainsi que les matériaux composites ainsi obtenus.
Beraud Jean-Marc
Bruyere Alain
Hexcel Reinforcements
Smart & Biggar
LandOfFree
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