Abstract: A method for making a composite material by continuously depositing glass yarns on a moving substrate, at least 80 wt % of the yarns being blended yarns consisting of intimately mixed glass filaments and thermoplastic organic material filaments, and the amount of deposited glass being equal to over 40 wt % of the total amount of material deposited in the form of glass yarns and organic material; transferring the combined glass yarns and organic material to a number of areas where they are heated, compressed and cooled, and specifically heated and/or cooled while simultaneously being compressed; and cutting the resulting assembly into plates or winding it onto a revolving drum.

Abstract: A method for filling a receiver with expanded fibers includes the steps of feeding at least one bundle of fibers from at least one roving; introducing the at least one bundle into a portable tool having a manual gripping element, a spray nozzle, an air supply device connected for supplying air to the nozzle, an extraction system configured to hold the at least one bundle and feed the at least one bundle to the nozzle, and an inlet guide positioned to guide the at least one bundle to the extraction system; and using the air supply device to expand the fibers of the at least one bundle in said spray nozzle, and spray the expanded fibers into the receiver.

Abstract: A hollow composite body includes a thermoplastic internal layer as a liner, a thermoplastic interlayer with embedded reinforcing fibers, and a thermoplastic external layer. The hollow body is made by furnishing the liner as a preform; introducing the preform into a mold, an inflatable bladder having been inserted into the preform; heating the preform and inflating the bladder to apply pressure against the internal wall of the preform. A space between the external wall of the preform and the internal wall of the mold is tailored to the thickness of the external layer of the hollow body to be obtained, so as to allow migration of the thermoplastic of the interlayer, and possible of the liner, beyond the interlayer.

Abstract: Method for sealing a bared section (10) in the wall of a hollow body based on a thermoplastic and on reinforcing fibers, the hollow body being especially intended for conveying or containing a pressurized fluid. The surface and the contours of the section (10) are coated with a protective thermoplastic (30) which is heated while it is being deposited and is compatible with the said thermoplastic of the hollow body in order to achieve complete adhesion.

Abstract: A device for coupling two pipes made of composite material based on a reinforced thermoplastic, includes a sleeve (40) threaded on its internal wall and intended to be joined to an end (21) of the first pipe (20) and to an end (31) of the second pipe (30). A sealing element (44) creates a seal in the coupling zone. A first end-piece (11) is intended to be fastened to the end (21) of the first pipe and a second end-piece (12) is intended to be fastened to the end (31) of the second pipe. Each end-piece has over at least part of its external surface (13, 14) a screw thread (15, 16) intended to engage in a complementary manner with the screw thread (48) of the sleeve (40).

Abstract: The present invention relates to a hollow body of revolution (1), the wall of which comprises an internal first region (a) made, at least on its external periphery, of a single thermoplastic organic material A, and a second region having a first part (b), arranged so as to be continuous with the first region (a) and made of a thermoplastic material identical to the material A and of continuous glass yarns embedded in the said thermoplastic material, and a second part (c) forming the external periphery of the hollow body and made only of thermoplastic material. According to the invention, the wall has a volume void content Vv of less than 0.5%, preferably less than 0.2%.

Abstract: Process for manufacturing a composite tape (10), consisting in bringing together and in consolidating a multiplicity of continuous yarns (11), characterized in that yarns (11) based on a thermoplastic and on reinforcing fibers are entrained and brought together in a parallel manner in the form of a sheet (12) which enters a zone in which it is heated to a temperature reaching at least the melting point of the thermoplastic and then passes through a rotating impregnation device (80) in order to distribute the molten thermoplastic uniformly and guarantee that the reinforcing fibers are completely impregnated by the latter; next, the sheet (12) is introduced into a shaping and centering device (100) so as to obtain a tape (13) formed by bringing the yarns (11) together so as to be touching, thereby creating transverse continuity; the tape (13) is cooled in order to consolidate the yarns by freezing the thermoplastic and its dimensional characteristics and its appearance are set in order to deliver the said compo

Abstract: A method for filling a receiver with expanded fibers includes the steps of feeding at least one bundle of fibers from at least one roving; introducing the at least one bundle into a portable tool having a manual gripping element, a spray nozzle, an air supply device connected for supplying air to the nozzle, an extraction system configured to hold the at least one bundle and feed the at least one bundle to the nozzle, and an inlet guide positioned to guide the at least one bundle to the extraction system; and using the air supply device to expand the fibers of the at least one bundle in said spray nozzle, and spray the expanded fibers into the receiver.

Abstract: Method for sealing a bared section (10) in the wall of a hollow body based on a thermoplastic and on reinforcing fibers, the hollow body being especially intended for conveying or containing a pressurized fluid. The surface and the contours of the section (10) are coated with a protective thermoplastic (30) which is heated while it is being deposited and is compatible with the said thermoplastic of the hollow body in order to achieve complete adhesion.

Abstract: A hollow composite body includes an internal layer formed from a thermoplastic, which constitutes the liner of the body, a composite interlayer formed from a thermoplastic in which reinforcing fibers are embedded, and an external layer formed from a thermoplastic. The hollow composite body is made by furnishing the external surface of the liner with a composite so as to constitute a preform, the composite consisting of a thermoplastic mixed with reinforcing fibers; introducing the preform into a mold, an inflatable bladder having been inserted into the preform; heating the preform and inflating the inside of the bladder in order to apply pressure against the internal wall of the preform.

Abstract: The invention relates to the manufacture of a composite product which consists:

Abstract: A process for manufacturing composite sheets. The sheets are made of at least one ply of yarn with this ply having at least two materials with different melting points. The ply is introduced continuously into a zone where it is heated to a temperature between the two melting points and below the degradation temperature of the material having the lower melting point. This ply is then passed over at least one rotating bar heated to a temperature lying between the melting points and below the degradation temperature of the material with the lower melting point. The ply is then compressed on leaving the rotating bar and is cooled to form a composite web. The web is collected in the form of one or more composite plies.