FR2602458A1 - Method for producing a composite tube and tube thus obtained - Google Patents
Method for producing a composite tube and tube thus obtained Download PDFInfo
- Publication number
- FR2602458A1 FR2602458A1 FR8611526A FR8611526A FR2602458A1 FR 2602458 A1 FR2602458 A1 FR 2602458A1 FR 8611526 A FR8611526 A FR 8611526A FR 8611526 A FR8611526 A FR 8611526A FR 2602458 A1 FR2602458 A1 FR 2602458A1
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- Prior art keywords
- tube
- resin
- composite
- layer
- mold
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
- B29C53/08—Bending or folding of tubes or other profiled members
- B29C53/083—Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
- B29C53/585—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features the cross-section varying along their axis, e.g. tapered, with ribs, or threads, with socket-ends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
- B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
La présente invention a pour objet un procédé de fabrication d'un tube composite et le tube obtenu selon ce procédé. The present invention relates to a method of manufacturing a composite tube and the tube obtained according to this method.
Les produits industriels actuels, compte tenu de leurs applications, nécessitent souvent d'associer une résistance mécanique élevée à des caractéristiques thermiques et/ou chimiques particulières tout en ayant des coûts de fabrication peu élevés. Il est pratiquement impossible de trouver un produit unique pouvant apporter simultanément toutes ces caractéristiques d'où la conception de matériaux composites. Current industrial products, given their applications, often require combining high mechanical resistance with specific thermal and / or chemical characteristics while having low manufacturing costs. It is practically impossible to find a single product that can simultaneously provide all of these characteristics, hence the design of composite materials.
C'est le cas par exemple des différents tubes devant véhiculer des fluides au sein d'une structure mécanique complexe comme par exemple un moteur thermique. La résistance mécanique devra de plus être obtenue si possible avec un gain de poids sans nuire à la bonne résistance à la température tout en conférant au produit une durée de vie suffisante. Dans le cas des moteurs termiques, le tube composite devra généralement prendre une forme particulière pour pouvoir réaliser des liaisons adéquates, tout en contournant les pièces et parties existantes. De même, la section peut en fonction des nécessités ne pas rester constante et évoluer aussi bien dans ses dimensions que dans sa forme (section circulaire puis ovale par exemple.This is the case for example of the various tubes having to convey fluids within a complex mechanical structure such as for example a heat engine. Mechanical resistance should also be obtained if possible with a weight gain without affecting good temperature resistance while giving the product a sufficient shelf life. In the case of thermal motors, the composite tube will generally have to take a particular shape to be able to make adequate connections, while bypassing the existing parts and parts. Similarly, the section may, depending on the requirements, not remain constant and evolve both in its dimensions and in its shape (circular section then oval for example.
Les structures tubulaires ainsi réalisées à partir de matériau composite sont constituées de trois éléments essentiels; un tube interne renforcé à sa surface extérieure de fibres synthétiques, l'ensemble étant enrobé dans une résine. The tubular structures thus produced from composite material consist of three essential elements; an inner tube reinforced on its outer surface with synthetic fibers, the whole being coated in a resin.
On connaît par exemple le brevet GB-2 004 619 concernant des produits tubulaires renforcés. Un tube interne en caoutchouc est recouvert par une tresse à base de fibres synthétiques, l'ensemble est alors trempé ou imprégné d'une résine liquide polymérisable. On dispose alors cet ensemble dans un moule permettant une élévation en température du produit,desti- née à favoriser la polymérisation de la résine. On obtient ainsi un tube composite. Ce brevet propose dans le cadre d'une amélo- ration de la fabrication de gonfler le tube interne par introduction d'un fluide sous pression, de manière à plaquer le tube souple interne contre la paroi du moule ce qui a pour avantage de bien faire pénétrer les fibres dans la résine liquide et de rendre l'état de surface du produit fini plus acceptable. For example, GB-2 004 619 is known concerning reinforced tubular products. An internal rubber tube is covered by a braid based on synthetic fibers, the assembly is then soaked or impregnated with a polymerizable liquid resin. This assembly is then placed in a mold allowing the product to rise in temperature, intended to promote the polymerization of the resin. A composite tube is thus obtained. This patent proposes, as part of an improvement in manufacturing, to inflate the internal tube by introducing a pressurized fluid, so as to press the internal flexible tube against the wall of the mold, which has the advantage of doing well. penetrate the fibers into the liquid resin and make the surface finish of the finished product more acceptable.
Si cette technique paraît satisfaisante pour la fabrication de tubes à axe rectiligne et à section constante, il reste qu'il est difficile à l'aide de ce procédé d'obtenir des produits ayant des formes de révolution complexes et dont l'axe peut présenter des courbures dans différents plans.If this technique seems satisfactory for the manufacture of tubes with a rectilinear axis and with a constant section, the fact remains that it is difficult using this method to obtain products having complex forms of revolution and the axis of which may have curvatures in different planes.
La demande de brevet français n0 35/09714 au nom de la demanderesse a proposé un procédé permettant d'améliorer la qualité du produit final. Dans ce but, les trois constituants principaux, tube interne en caoutchouc, fibre synthétique de renfort et résine liquide sont disposés de façon classique mais en plus d'exercer une pression interne à l'aide d'un fluide sous pression on exerce parallèlement et simultanément une traction aux deux extrémités de la tresse en fils synthétiques de renfort de façon que celle-ci se positionne parfaitement sur le tube en caoutchouc pour répartir de façon homogène la résine sur ces différentes fibres. French patent application No. 35/09714 in the name of the applicant has proposed a process making it possible to improve the quality of the final product. For this purpose, the three main constituents, internal rubber tube, synthetic reinforcing fiber and liquid resin are arranged in a conventional manner but in addition to exerting internal pressure using a pressurized fluid is exerted in parallel and simultaneously a pull at the two ends of the braid made of synthetic reinforcing threads so that it is positioned perfectly on the rubber tube to distribute the resin evenly over these different fibers.
Dans un tel cas, si le produit obtenu est satisfaisant sur le plan de la qualité de fabrication, il reste que les coûts sont relativement élevés. En effet, notamment lors de la réalisation de certains profils complexes, la répartition de la résine liquide pose un problème car cette répartition est non homogène. L'automatisation reste difficile et de nombreuses interventions manuelles sont requises. In such a case, if the product obtained is satisfactory in terms of manufacturing quality, the costs remain relatively high. Indeed, in particular during the production of certain complex profiles, the distribution of the liquid resin poses a problem because this distribution is not homogeneous. Automation remains difficult and many manual interventions are required.
La présente invention a donc pour but de proposer un perfectionnement au procédé de fabrication de tube en matériau composite à base d'un matériau de renfort disposé sur un tube noyé dans une matrice en résine polymérisable, caractérisé par les étapes suivantes
- mise en place d'un tube souple sur un mandrin souple adapté à la forme finale du produit,
- drapage d'une résine prépolymérisée sous forme de ruban autour du tube souple,
- mise en place du matériau de renfort autour de l'ensemble tube plus résine,
- drapage, autour de ce matériau de renfort, d'une nouvelle couche de résine prépolymerisée sous forme de ruban,
- mise en place dans le moule,
- polymérisation à la chaleur de l'ensemble.The object of the present invention is therefore to propose an improvement to the method of manufacturing a tube made of composite material based on a reinforcing material placed on a tube embedded in a matrix of polymerizable resin, characterized by the following steps
- installation of a flexible tube on a flexible mandrel adapted to the final shape of the product,
- draping of a prepolymerized resin in the form of a ribbon around the flexible tube,
- placement of the reinforcement material around the tube plus resin assembly,
- draping, around this reinforcing material, a new layer of pre-polymerized resin in the form of a ribbon,
- placement in the mold,
- heat polymerization of the assembly.
Ce procédé est en outre caractérisé par le fait que dans le but de réaliser des surépaisseurs locales définies en fonction du profil et destinées à augmenter la résistance mécanique, on effectue un drapage supplémentaire sur la partie définie du tube de manière à obtenir ce renfort localisé. This process is further characterized by the fact that, in order to produce local extra thicknesses defined as a function of the profile and intended to increase the mechanical resistance, an additional layup is carried out on the defined part of the tube so as to obtain this localized reinforcement.
Ce procédé utilise simultanément une pression interne destinée à plaquer l'ensemble des composants initiaux à savoir résine, tresse, tube contre la paroi du moule, et une dépression dans la zone située entre les composants et la paroi interne du moule. Ce vide est plus particulièrement destiné à améliorer l'extraction des bulles d'air lors de la polymérisatior dans le moule. Mais, cette dépression auxiliaire améliorera également le compactage sous l'effet de la pressier interne (augmentation de la pression relative effective).This process simultaneously uses an internal pressure intended to press all of the initial components, namely resin, braid, tube against the wall of the mold, and a vacuum in the area between the components and the internal wall of the mold. This vacuum is more particularly intended to improve the extraction of air bubbles during the polymerization in the mold. However, this auxiliary depression will also improve the compaction under the effect of the internal presser (increase in the effective relative pressure).
L'invention a également pour objet le tube composite obtenu par ce procédé de fabrication. The invention also relates to the composite tube obtained by this manufacturing process.
Les avantages d'un tel procédé outre le fait de diminuer les coûts de fabrication permettent d'obtenir des produits exempts de défauts tant internes que de surface. En effet, le centrage des fibres de renfort est obtenu par la disposition des différentes couches de résine. Les renforts, peuvent être localisés en des endroits divers et sur de très faibles longueurs, la fabrication restant dans tous les cas aisée propre et sans risque de coulure de résine. Par ailleurs, l'homo- généité structurale et la répartition de la résine sont telles qu le procédé garantit la reproductibilité du produit. #nsi, il sera possible de réaliser des structures de tubes à diamètre variable et à profil complexe dans des conditions industrielles particulièrement satisfaisantes. The advantages of such a process, in addition to reducing the manufacturing costs, make it possible to obtain products free from both internal and surface defects. Indeed, the centering of the reinforcing fibers is obtained by the arrangement of the different layers of resin. The reinforcements can be located in various places and over very short lengths, the manufacture remaining in all cases easy clean and without risk of resin dripping. Furthermore, the structural homogeneity and the distribution of the resin are such that the process guarantees the reproducibility of the product. #nsi, it will be possible to produce tube structures with variable diameter and complex profile under particularly satisfactory industrial conditions.
La description qui va suivre en relation avec les figures annexées permettra de faire apparaître d'autres caractéristiques et avantages de l'invention. The description which follows in relation to the appended figures will make it possible to reveal other characteristics and advantages of the invention.
La figure 1 est une vue schématique du produit composite selon l'invention avant l'étape de polymérisation dans le moule;
La figure 2 est la vue d'une section en coupe selon A-A;
La figure 3 représente un schéma type d'un cycle de polymérisation selon le procédé de l'invention.Figure 1 is a schematic view of the composite product according to the invention before the polymerization step in the mold;
Figure 2 is the view of a section in section along AA;
FIG. 3 represents a typical diagram of a polymerization cycle according to the method of the invention.
Sur la figure 1, on distingue le moule 1 dans lequel est disposé le composite 2 de forme complexe et de diamètre variable suivant la longueur. Une gaine souple 3 est enfilée sur un mandrin en forme 31 plus particulièrement réalisé en élastomère au silicone. Ce mandrin est uniquement destiné à donner à la gaine souple une semi-rigidité permettant de disposer les divers constituants du composite. La gaine peut être réalisée en caoutchouc fluoré, du type des produits commercialisés sous la marque VITON. Une première couche de résine est disposée à la surface de cette gaine de caoutchouc par enroulement d'un ruban 30 d'une résine époxy par exemple, du type de celles vendues sous forme de film adhésif et commercialisée notamment par la société CIBA GEIGY. In Figure 1, there is the mold 1 in which is placed the composite 2 of complex shape and variable diameter along the length. A flexible sheath 3 is threaded on a shaped mandrel 31 more particularly made of silicone elastomer. This mandrel is only intended to give the flexible sheath a semi-rigidity making it possible to arrange the various constituents of the composite. The sheath can be made of fluorinated rubber, of the type of products sold under the VITON brand. A first layer of resin is placed on the surface of this rubber sheath by winding a tape 30 of an epoxy resin for example, of the type of those sold in the form of an adhesive film and sold in particular by the company CIBA GEIGY.
Un matériau de renfort 32 sous forme d'une tresse en fils synthétiques par exemple du type aramide est disposé à la surface du drapage époxy. On réalise à nouveau un drapage 33 du ruban de manière à constituer une deuxième couche de résine époxy. A reinforcing material 32 in the form of a braid of synthetic threads, for example of the aramid type, is placed on the surface of the epoxy draping. A draping 33 of the ribbon is again carried out so as to constitute a second layer of epoxy resin.
L'ensemble du composite ainsi réalisé est disposé dans le moule 1 la gaine souple est reliée de façon adéquate (non représentée) à une source de fluide sous pression. L'orifice 4 ménagé dans la paroi du moule sera raccordé à un dispositif de pompe à vide. La section du produit composite selon l'invention représentée sur la figure 2 montre une disposition de base identique comprenant un mandrin 31, une gaine souple 3, une première couche de résine époxy 30 autour de laquelle est disposée une première tresse 32 et une deuxieme couche de résine époxy. Au niveau de cette section le produit nécessite un renforcement de la structure à cause de l'élargissement du diamètre. La couche de résine 33 est à nouveau entourée d'une tresse 40 elle-même entourée d'une seule couche époxy 41. On dispose donc simultanément plusieurs couches identiques avant polymérisation en un endroit bien localisé. The entire composite thus produced is placed in the mold 1 the flexible sheath is adequately connected (not shown) to a source of pressurized fluid. The orifice 4 formed in the wall of the mold will be connected to a vacuum pump device. The section of the composite product according to the invention shown in FIG. 2 shows an identical basic arrangement comprising a mandrel 31, a flexible sheath 3, a first layer of epoxy resin 30 around which a first braid 32 and a second layer are disposed. epoxy resin. In this section the product requires strengthening of the structure because of the enlargement of the diameter. The resin layer 33 is again surrounded by a braid 40 which is itself surrounded by a single epoxy layer 41. Several identical layers are therefore simultaneously available before polymerization in a well located location.
En relation avec la figure 3,on va maintenant décrire les différentes étapes de réalisation d'un tube suivant l'invention une fois la gaine souple enfilée sur le mandrin de silicone, et drapée par les rubans de résine. Après avoir enfilé la tresse-et avoir disposé une dernière couche de résine, l'ensemble est placé dans le moule. La gaine souple est alors reliée à la source de fluide sous pression après avoir disposé un bouchon hermétique à l'extrémité opposée du tube. De façon à mettre en forme le tube une pression de 1 bar est maintenue à l'intérieur tandis qu'un vide de quelques dizaines de millibars est exercé à travers l'orifice 4 sur la paroi extérieure du tube et des composants. Parallèlement, le moule est monté en température et lorsque le seuil de ramollissement est atteint, la pression interne est augmentée entre 5 et 10 bars tandis que la température augmente. In relation to FIG. 3, we will now describe the various stages in the production of a tube according to the invention once the flexible sheath is threaded over the silicone mandrel, and draped by the resin ribbons. After having threaded the braid and having placed a last layer of resin, the assembly is placed in the mold. The flexible sheath is then connected to the source of pressurized fluid after having placed a hermetic plug at the opposite end of the tube. In order to shape the tube, a pressure of 1 bar is maintained inside while a vacuum of a few tens of millibars is exerted through the orifice 4 on the outer wall of the tube and of the components. At the same time, the mold is raised in temperature and when the softening threshold is reached, the internal pressure is increased between 5 and 10 bars while the temperature increases.
Lorsque la température de polymérisation est atteinte, le vide peut ne plus etre maintenu, tandis que la pression interne reste maintenue en palier jusqu'à complète polymérisation de la résine dans la masse. La phase suivante est celle du refroidissement continu jusqu'à la température ambiante.When the polymerization temperature is reached, the vacuum may no longer be maintained, while the internal pressure remains maintained in level until complete polymerization of the resin in the mass. The next phase is that of continuous cooling to room temperature.
La présente invention n'est pas limitée aux exemples de réalisation qui viennent d'être décrits, elle est au contraire susceptible de modifications et de variantes qui apparaitront à l'homme de l'art. The present invention is not limited to the exemplary embodiments which have just been described, it is on the contrary liable to modifications and variants which will appear to those skilled in the art.
En particulier, et pour autant que le film de résine soit suffisamment épais, un seul enrubannage de résine, entre le tube en élastomère et la tresse de fibres, peut suffire pour obtenir la section courante du tube composite. In particular, and provided that the resin film is sufficiently thick, a single resin wrapping, between the elastomer tube and the fiber braid, may be sufficient to obtain the current section of the composite tube.
Comme précédement et sous l'effet des pressions et de la température la résine viendra imprégner les fibres pour former une structure composite homogène et dans tous les cas, les taux volumiques de renfort et de résine seront particulièrement bien controlés en raison même du procédé de conception/fabrication.As before and under the effect of pressures and temperature the resin will impregnate the fibers to form a homogeneous composite structure and in all cases, the volume ratios of reinforcement and resin will be particularly well controlled due to the very design process /manufacturing.
On notera également que le tube en élastomère 3 n'est pas toujours indispensable quand notamment l'étanchéité du tube composite n'est pas requise. On pourra dans ce cas, par exemple, disposer le premier film de résine directement sur le mandrin 31 qui sera réalisé en élastomère de silicone thermodilatable (puis imprégné d'un agent démoulant avant enrubannage du film de résine). Avec ce type de mandrin dilatable, la pression interne de compactage sera obtenue simplement par la dilatation volumique du mandrin par augmentation de la température, ce qui évitera de relier ou connecter le tube dans son moule à une source de pression pneumatique. It will also be noted that the elastomer tube 3 is not always essential when in particular the sealing of the composite tube is not required. In this case, it is possible, for example, to place the first resin film directly on the mandrel 31 which will be made of thermosettable silicone elastomer (then impregnated with a release agent before wrapping the resin film). With this type of expandable mandrel, the internal compaction pressure will be obtained simply by the volume expansion of the mandrel by increasing the temperature, which will avoid connecting or connecting the tube in its mold to a pneumatic pressure source.
On notera enfin que ce procédé caractérisé par la superposition de résine en film souple adhésif et de renforts fibreux, permet en tant que besoin et pour autant qu'elles ne soient pas incompatibles entre elles, d'utiliser des résines de différents types ou de formulations chimiques différentes, sans complication de la fabrication. Finally, it should be noted that this process, characterized by the superimposition of resin in flexible adhesive film and fibrous reinforcements, allows as necessary and provided that they are not incompatible with each other, to use resins of different types or formulations different chemicals, without manufacturing complications.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8611526A FR2602458B1 (en) | 1986-08-08 | 1986-08-08 | PROCESS FOR PRODUCING A COMPOSITE TUBE AND TUBE THUS OBTAINED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8611526A FR2602458B1 (en) | 1986-08-08 | 1986-08-08 | PROCESS FOR PRODUCING A COMPOSITE TUBE AND TUBE THUS OBTAINED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2602458A1 true FR2602458A1 (en) | 1988-02-12 |
| FR2602458B1 FR2602458B1 (en) | 1992-07-24 |
Family
ID=9338164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8611526A Expired - Lifetime FR2602458B1 (en) | 1986-08-08 | 1986-08-08 | PROCESS FOR PRODUCING A COMPOSITE TUBE AND TUBE THUS OBTAINED |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2602458B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005653A1 (en) * | 1989-10-19 | 1991-05-02 | Stamicarbon B.V. | Process for the manufacture of a tubular composite part |
| FR2706000A1 (en) * | 1993-06-02 | 1994-12-09 | Inst Francais Du Petrole | Mechanical binding device made of resin reinforced with wound fibers - Production method. |
| FR2769866A1 (en) * | 1997-10-20 | 1999-04-23 | Sarma | MOLDING PROCESS, MOLD FOR MANUFACTURING A GLOBALLY CYLINDRICAL PART WITH A HOLLOW PROFILE OF COMPOSITE MATERIAL AND PART OBTAINED THANKS TO THIS PROCESS |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1320145A (en) * | 1962-01-24 | 1963-03-08 | Bachmann & Cie | Process of molding hollow parts by blow molding using a flexible bag in a rigid mold |
| US4202856A (en) * | 1977-09-30 | 1980-05-13 | Rockwell International Corporation | Graphite-epoxy molding method |
| EP0040492A2 (en) * | 1980-05-21 | 1981-11-25 | Mitsubishi Rayon Co., Ltd. | Moulding material for fibre reinforced plastic tubes |
| GB2085351A (en) * | 1980-09-26 | 1982-04-28 | Blatchford Chas A And Sons Ltd | A method of making an artificial limb component |
| GB2096530A (en) * | 1981-04-04 | 1982-10-20 | Ver Flugtechnische Werke | A tubular hollow member and a method for its manufacture and a device for carrying out the method |
-
1986
- 1986-08-08 FR FR8611526A patent/FR2602458B1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1320145A (en) * | 1962-01-24 | 1963-03-08 | Bachmann & Cie | Process of molding hollow parts by blow molding using a flexible bag in a rigid mold |
| US4202856A (en) * | 1977-09-30 | 1980-05-13 | Rockwell International Corporation | Graphite-epoxy molding method |
| EP0040492A2 (en) * | 1980-05-21 | 1981-11-25 | Mitsubishi Rayon Co., Ltd. | Moulding material for fibre reinforced plastic tubes |
| GB2085351A (en) * | 1980-09-26 | 1982-04-28 | Blatchford Chas A And Sons Ltd | A method of making an artificial limb component |
| GB2096530A (en) * | 1981-04-04 | 1982-10-20 | Ver Flugtechnische Werke | A tubular hollow member and a method for its manufacture and a device for carrying out the method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005653A1 (en) * | 1989-10-19 | 1991-05-02 | Stamicarbon B.V. | Process for the manufacture of a tubular composite part |
| FR2706000A1 (en) * | 1993-06-02 | 1994-12-09 | Inst Francais Du Petrole | Mechanical binding device made of resin reinforced with wound fibers - Production method. |
| EP0628400A1 (en) * | 1993-06-02 | 1994-12-14 | Institut Français du Pétrole | Device for mechanical connection made of resin reinforced with wound fibres, method for manufacturing |
| US5605507A (en) * | 1993-06-02 | 1997-02-25 | Institut Francais Du Petrole | Mechanical linking device made of wound fiber-reinforced resin manufacturing process |
| FR2769866A1 (en) * | 1997-10-20 | 1999-04-23 | Sarma | MOLDING PROCESS, MOLD FOR MANUFACTURING A GLOBALLY CYLINDRICAL PART WITH A HOLLOW PROFILE OF COMPOSITE MATERIAL AND PART OBTAINED THANKS TO THIS PROCESS |
| EP0911143A1 (en) * | 1997-10-20 | 1999-04-28 | Sarma | Process for moulding a substantially cylindrical hollow article made of composite material, mould for its manufacture and article obtained thereby |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2602458B1 (en) | 1992-07-24 |
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