Method of joining a thermoplastic material to a fibre...

B - Operations – Transporting – 29 – C

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B29C 65/00 (2006.01) B29C 65/06 (2006.01) B29C 65/36 (2006.01) B32B 3/12 (2006.01) B32B 27/02 (2006.01) B64C 1/00 (2006.01)

Patent

CA 2676317

The invention relates to a method of joining a thermoplastic material (10) to a fibre composite material (11), the thermoplastic material (10) being welded to the fibre composite material (11), wherein the fibre composite material is a fibre-reinforced matrix material or comprises a fibre-reinforced matrix material and wherein the matrix material is a thermoset or comprises a thermoset. Preferably, the thermoplastic material (10) and the fibre composite material (11) are welded together by motion welding and/or by induction welding. In addition, it is preferred that, for the preferred induction welding, an electrically conductive material is arranged in a joint area between the thermoplastic material and the fibre composite material and induction heat is generated in the electrically conductive material which is sufficient to cause the thermoplastic material to start to melt and to heat the fibre composite material.

L'invention porte sur un procédé de liaison d'une matière thermoplastique (10) à une matière composite comprenant des fibres (11). Ladite matière thermoplastique (10) est soudée à la matière composite comprenant des fibres (11) et constitue une matière de matrice renforcée par des fibres ou comprenant une matière de matrice renforcée par des fibres. La matière de matrice est formée d'une matière thermodurcie ou comprenant une matière thermodurcie. De préférence, la matière thermoplastique (10) et la matière composite comprenant des fibres (11) sont soudées par soudure mobile et/ou par soudure par induction. De plus, la soudure par induction est préférée, réalisée de préférence au moyen d'une matière conductrice de l'électricité est disposée dans une zone de liaison entre la matière thermoplastique et la matière composite comprenant des fibres; une chaleur d'induction suffisante pour amener la matière thermoplastique à commencer à fondre et à chauffer la matière composite à teneur en fibres est générée dans la matière conductrice de l'électricité.

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