Carbon-fibre reinforced smc for multi-axially reinforced...

B - Operations – Transporting – 29 – C

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Details

B29C 70/46 (2006.01) B29C 43/20 (2006.01) B29C 43/34 (2006.01) B29C 70/10 (2006.01) B29C 70/18 (2006.01) B29C 70/20 (2006.01) B29C 70/50 (2006.01) B32B 5/26 (2006.01) C08J 5/24 (2006.01) B29C 43/18 (2006.01)

Patent

CA 2383550

The invention relates to an SMC (sheet moulding compound) for producing fibre- reinforced duroplastic components. Said SMC consists of a resin matrix (2) which is fibre-reinforced with unidirectional fibres (UD-fibres) (7) that are arranged in axial alignment and preferably with additional cut fibres (random fibres) (4) that are arranged in a non-aligned manner in the resin matrix. According to the invention, in order to achieve extremely high rigidity in a multi-axial direction with a low surface weight, several layers of SMC are arranged in the component, each layer containing UD-fibres (7) with a different axial alignment from one another.

L'invention concerne un préimprégné (SMC: Sheet Moulding Compound) pour la production de composants thermodurcissables renforcés par des fibres, comprenant une matrice de résine (2) renforcée par des fibres unidirectionnelles (fibres UD) (7) qui sont disposées suivant une orientation axiale, auxquelles sont ajoutées de préférence des fibres coupées (fibres non orientées) disposées non alignées dans ladite matrice de résine. En vue d'obtenir, pour un faible grammage, une résistance extrêmement élevée en direction multi-axiale, l'invention est caractérisée en ce que plusieurs couches de préimprégné contenant des fibres UD (7) sont agencées dans le composant suivant des orientations axiales différentes les unes des autres.

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