Braided shaped filamentary structures and method of making

Details Braided shaped filamentary structures and method of making Braided shaped filamentary structures and method of making

D - Textiles, Paper

04

C

D04C 3/00 (2006.01) C04B 35/80 (2006.01) C04B 35/83 (2006.01) D04H 1/46 (2006.01) D04H 13/00 (2006.01) F16D 69/02 (2006.01) F16D 65/12 (2006.01)

Patent

CA 2076196

Fibrous substrates for the production of carbon and/or ceramic (including mixtures of these) fiber reinforced carbon and/or ceramic (including mixtures of these) composites and to methods of manufacture of same. A shaped filamentary structure comprising at least a first braided filamentary tape layer of a width generally corresponding to that of the filamentary structure to be formed, the first braided filamentary tape layer superposed upon and joined to least one other filamentary layer by needlepunching to produce cross-linking of the layers by filaments displaced out of the layers and extending in a direction generally perpendicular to the faces of the layers, and methods of making same. The structure may include a plurality of hellically wound braided tapes arranged to form a flat, hollow annulus having a plurality of interleaved braided layers. The structure may be used in the production of friction discs.

Substrats fibreux pour la production de composites de carbone ou de céramique (ou un mélange des deux), de composites de carbone ou de céramique renforcés de fibres (ou un mélange des deux) et méthode pour leur production. Structure filamenteuse sous forme de rubans tressés de la largeur correspondant à celle de la structure à produire et reliés mécaniquement en couches successives par aiguilletage, opération qui consiste à entrelacer les filaments en les déplaçant dans une direction généralement perpendiculaire à la surface du ruban, et méthodes pour la production de ces couches mécaniquement liées. La structure peut inclure une pluralité de rubans enroulés en spirale et de forme annulaire en couches entrelacées. La structure peut servir à la production de disques d'embrayage.

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