A method of manufacturing a composite product comprises the steps of forming a first layer from a non-crimped fabric material (186;192;208) and forming a second layer from a unidirectional fibre material (124;142;162), wherein the non-crimped fabric material of the first layer comprises fibres at a non-zero angle to the unidirectional fibre material of the second layer, impregnating (106) at least one of the unidirectional fibre material and non-crimped fabric material with an uncured matrix material, assembling the first and second layers, pultruding (108) the first and second layers through a die and curing the matrix material to form the composite product.
B29C 70/52 - Pultrusion, c.-à-d. façonnage et compression par traction continue à travers une matrice
B29C 70/08 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement comprenant des combinaisons de différentes formes de renforcements fibreux incorporés dans une matrice, formant une ou plusieurs couches, avec ou sans couches non renforcées
B29C 70/20 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans une seule direction, p. ex. mèches ou autres fibres parallèles
2.
DEVICE FOR PRODUCING A PART FROM COMPOSITE MATERIAL INCORPORATING AT LEAST ONE OPTICAL FIBRE
A facility (1) for producing a part (3) from composite material incorporating at least one optical fibre (5), said facility comprising at least: a first feed device (2) comprising a plurality of reinforcing fibres (7) impregnated with resin, a second feed device (16) comprising at least one optical fibre (5), separate from the first feed device (2), a pultrusion die (11) in the shape of the part (3) made from composite material to be obtained, a traction device configured to pull the reinforcing fibres (7) and the optical fibre (5) from the feed devices (2) through the pultrusion die (11), and a positioning element (13) present at the entrance (15) of the pultrusion die and having at least one guide opening kept in a predefined position relative to the entrance (15) of the die.
B29C 70/88 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts caractérisées principalement par des propriétés spécifiques, p. ex. électriquement conductrices ou renforcées localement
B29C 70/52 - Pultrusion, c.-à-d. façonnage et compression par traction continue à travers une matrice
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p. ex. câbles de transmission optique
H01B 11/22 - Câbles comprenant à la fois au moins un conducteur de l'électricité et des fibres optiques
B29C 70/86 - Incorporation dans des couches de renforcement imprégnées cohérentes
B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
3.
IMPREGNATION DEVICE, UNIT FOR MANUFACTURING A HOLLOW PROFILE SECTION BY PULTRUSION COMPRISING SUCH A DEVICE, AND CORRESPONDING MANUFACTURING METHOD
Device (20) for impregnating fibres (12) with resin (32), comprising a hollow peripheral element (22) that has a main axis (A) and a central element (30) coaxial with the peripheral element (22) and housed at least partially inside the latter. A circumferential injection chamber (42) is delimited between the internal wall of the peripheral element (22) and the external wall of the central element (30), said injection chamber having an inlet end (42A) and an outlet end (42B), and the device comprises resin conveying means communicating with said injection chamber. A unit for manufacturing a hollow profile section by pultrusion comprising such an impregnation device and a corresponding method of manufacture are also divulged.
B29C 70/52 - Pultrusion, c.-à-d. façonnage et compression par traction continue à travers une matrice
B29B 15/12 - Revêtement ou imprégnation d'agents de renforcement de longueur indéfinie
B29C 69/02 - Combinaisons de techniques de façonnage non prévues dans un seul des groupes principaux , p. ex. associations de techniques de moulage et d'assemblageAppareils à cet effet de techniques de moulage uniquement
B29C 53/56 - Enroulement et assemblage, p. ex. enroulement en spirale
The present invention relates to a solid crosslinkable resin composition which is ductile at ambient temperature, comprising: - (A) a crosslinkable resin which is in liquid form at a temperature of between 60 and 80°C; - (B) an optional crosslinking agent; and - (C) additives, said additives comprising: - (C1) a solid metallic filler in powder form; - (C2) a thermoplastic; - (C3) an optional chain extender which can react with the resin (A); - (C4) optionally, organic or inorganic non-metallic particles or fibres; the additives (C) representing between 20% and 55% by weight of the composition, advantageously between 30% and 50% by weight, advantageously between 40% and 50% by weight. It also relates to the use thereof for filling the empty spaces of a composite structure, to the crosslinked composition obtained, to the composite structure incorporating the crosslinked composition and to a process for manufacturing this composite structure.
C08L 63/00 - Compositions contenant des résines époxyCompositions contenant des dérivés des résines époxy
B29C 70/04 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes
The present invention relates to a solid crosslinkable resin composition which is ductile at ambient temperature, comprising: - (A) a crosslinkable resin which is in liquid form at a temperature of between 60 and 80°C; - (B) an optional crosslinking agent; and - (C) additives, said additives comprising: - (C1) a solid metallic filler in powder form; - (C2) a thermoplastic; - (C3) an optional chain extender which can react with the resin (A); - (C4) optionally, organic or inorganic non-metallic particles or fibres; the additives (C) representing between 20% and 55% by weight of the composition, advantageously between 30% and 50% by weight, advantageously between 40% and 50% by weight. It also relates to the use thereof for filling the empty spaces of a composite structure, to the crosslinked composition obtained, to the composite structure incorporating the crosslinked composition and to a process for manufacturing this composite structure.
B29C 70/04 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts comprenant uniquement des renforcements, p. ex. matières plastiques auto-renforçantes