FR2666274A1 - MANUFACTURING TECHNIQUE AND COMPOSITION OF MULTIDIRECTIONAL CONNECTION NODE IN THERMOSETTING COMPOSITE MATERIALS FOR TUBULAR ELEMENTS OF THE SAME MATERIALS. - Google Patents

MANUFACTURING TECHNIQUE AND COMPOSITION OF MULTIDIRECTIONAL CONNECTION NODE IN THERMOSETTING COMPOSITE MATERIALS FOR TUBULAR ELEMENTS OF THE SAME MATERIALS. Download PDF

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Publication number
FR2666274A1
FR2666274A1 FR9010991A FR9010991A FR2666274A1 FR 2666274 A1 FR2666274 A1 FR 2666274A1 FR 9010991 A FR9010991 A FR 9010991A FR 9010991 A FR9010991 A FR 9010991A FR 2666274 A1 FR2666274 A1 FR 2666274A1
Authority
FR
France
Prior art keywords
mold
connection node
composition
tubular elements
manufacturing technique
Prior art date
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.)
Withdrawn
Application number
FR9010991A
Other languages
French (fr)
Inventor
David Jean Alphonse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR9010991A priority Critical patent/FR2666274A1/en
Priority to PCT/FR1991/000697 priority patent/WO1992004177A1/en
Priority to EP91916241A priority patent/EP0498872A1/en
Publication of FR2666274A1 publication Critical patent/FR2666274A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56—Tensioning reinforcements before or during shaping
    • 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
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • 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
    • B29D12/00—Producing frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention relates to a connection node for tubes whose materials are similar and which gives, in addition to lightness, a same expansion coefficient, which is not the case at the present time. The node is comprised of continuous filaments impregnated with resin, forming a hank which is introduced in the mould, and a torsion and a prestressed are applied to the yarns during stoving. The mould is an integral part of the node in order to increase its torsion qualities. Nodes for parabolic structure, platform framework for satellite are examples of numerous industrial applications.

Description

TECHNIQUE DE FABRICATION ET COMPOSITION DE NOEUD
DE RACCORDEMENT MULTIDIRECTIONNEL EN MATERIAUX
COMPOSITES THERMODURCISSABLES POUR ELEMENTS
TUBULAIES DE MATERIAUX IDENTIQUES. MANUFACTURING TECHNIQUE AND KNOT COMPOSITION
MULTIDIRECTIONAL MATERIAL CONNECTION
THERMOSETTING COMPOSITES FOR ELEMENTS
TUBES OF THE SAME MATERIALS.

La présente invention concerne la technique de fabrication et la composition de noeud de raccordemnt multidirectionnel en matériaux composites thermodurcis- sables pour éléments tubulaires.The present invention relates to the manufacturing technique and the composition of multidirectional connection node made of thermosetting composite materials for tubular elements.

Actuellement, les pièces de raccordement multidirectionnelles, pour tubes thermodurcissables sont de matières différentes, alu forgé ou titane par exemple, ces noeuds de raccordement se retrouvent en particulier dans les ossatures de plate-forme spatiale.Currently, multidirectional connection pieces, for thermosetting tubes are of different materials, forged aluminum or titanium for example, these connection nodes are found in particular in the space platform frameworks.

Pour des problèmes de poids et de dilatation, il est préférable d'utiliser avec des tubes de carbone epoxy par exemple des noeuds de raccordement en même matière, ce qui résoud les inconvénients : poids et dilatations, et qui peut dans certains cas augmenter la résistance mécanique de l'ensemble.For problems of weight and expansion, it is preferable to use with epoxy carbon tubes, for example connection nodes of the same material, which resolves the disadvantages: weight and expansion, and which can in certain cases increase the resistance mechanics of the assembly.

L'exposé qui suit explique la composition du noeud et la technique employée pour la réalisation.The following description explains the composition of the knot and the technique used to make it.

L'élément principal est l'utilisation de filaments continus imprégnés d'une résine thermodurcissable, ces filaments en forme d'écheveau sont introduits dans un moule dont la structure participe a la composition du noeud, L'écheveau en place dans le moule, on imprime une torsion à l'ensemble avec une précontrainte sur les fils. La précontrainte étant maintenue pendant l'étuvage.The main element is the use of continuous filaments impregnated with a thermosetting resin, these skein-shaped filaments are introduced into a mold whose structure participates in the composition of the knot, The skein in place in the mold, we prints a twist to the assembly with a prestress on the wires. The prestressing is maintained during the baking.

La torsion des fils évite le délaminage et la précontrainte augmente la rigidité de l'ensemble.The twisting of the wires prevents delamination and the prestressing increases the rigidity of the assembly.

Si la rigidité de la pièce est exceptionnelle, il est nécessaire d'apporter un supplément de qualité à la torsion, c'est pourquoi le moule participe à l'effort de torsion, sous forme de tubes entièrement réalisés par des easoulementsXélicofdaux,
Prenons comme exemple la fig 1, représentant un type de moule avec neuf raccordements.If the rigidity of the part is exceptional, it is necessary to provide an additional quality to the torsion, this is why the mold participates in the torsion effort, in the form of tubes entirely produced by Xélicofdaux easoulements,
Take for example fig 1, representing a type of mold with nine connections.

Le moule est composé de 6 tubes réalisés par des enroulements filamentaires hélicoidaux, les mandrins des 6 tubes sont réunis avant étuvage et sur l'extérieur de l'ensemble il est réalisé des enrouleiaents hélicoidaux. The mold is composed of 6 tubes produced by helical filament windings, the mandrels of the 6 tubes are joined together before baking and on the outside of the assembly helical coils are produced.

L'ensemble est étuvé, et après enlèvement des mandrins, on découpe la longueur désirée qui va servit de moule pour réaliser le noeud. On dégage des sorties en fonction des manchons a réaliser . Contre ces sorties, par collage, on applique des tubes qui serviront de coffrage pour réaliser les manchons. Puis après avoir décapé les parois intérieures du moule on introauit les différents écneveaux réalisés sur machine a' bobiner.The whole is steamed, and after removal of the mandrels, the desired length is cut which will serve as a mold to make the knot. There are outputs depending on the sleeves to be produced. Against these outlets, by gluing, tubes are applied which will serve as formwork to make the sleeves. Then after having stripped the interior walls of the mold, we introduce the different tangs produced on a winding machine.

La figure 2 montre le cheminement d'un écheveau à travers un moule de 3 sorties. Figure 2 shows the path of a skein through a mold of 3 outlets.

A chaque sortie des filaments formant l'echeveau, ceuxci reçoivent une torsion et une précontrainte -voir flèchesfig. 2 - Après étuvage on coupe a' chaque sortie ltexcédent de ltécheveau. At each exit of the filaments forming the skein, these receive a twist and a pre-stress - see arrowsfig. 2 - After steaming, the excess of the skein is cut at each outlet.

Les manchons du noeud peuvent recevoir différentes preparations en vue du raccordement sur les éléments tubulaires : conicité, filetage, insert fileté etc... The sleeves of the knot can receive different preparations for connection to the tubular elements: taper, thread, threaded insert, etc.

Ces préparations étant des travaux courants et connus.These preparations being current and known works.

La fig. 3 montre un autre exemple de réalisation utilisant la même technique.Fig. 3 shows another exemplary embodiment using the same technique.

Les applications industrielles sont nombreuses : noeuds de 6 et 9 directions utilisés pour l'ossature de la plate-forme d'un satellite spatial.There are numerous industrial applications: nodes of 6 and 9 directions used for the framework of the platform of a space satellite.

Noeuds d'ossature de la structure d'une station orbitale
Noeud de structure parabolique pour raaome, radar etc...Structure nodes of an orbital station structure
Parabolic structure node for raaome, radar etc ...

Bans le traitement des eaux (garde-fou, échelles)
Nucléaire: rampe de protection et écuelles
Sports : automobile, vélo, canne de golf. In water treatment (railings, ladders)
Nuclear: protective ramp and bowls
Sports: automobile, bicycle, golf club.

Claims (2)

X I C s t I 6 N SX I C s t I 6 N S 1) Technique de fabrication et composition de noeud de raccordement multidirectionnel en matériaux composites thermodurcissables pour éléments tubulaires de matériaux identiques, caractérisée par - une première opération consistant à introduire un ou plusieurs écheveaux (5) formés de filaments continus imprégnés de résine tnermodurcissable dans un moule (1). Cette première opération étant suivie d'une précontrainte sur l'ensemble des filaments par l'effet conjugué de torsion et ten siopsur les extrémités du cu des écheveaux qui se dégagent du moule (5 et 6), précontrainte contrôlée et maintenue avant et pendant l'étuvage.1) Manufacturing technique and composition of multidirectional connection node made of thermosetting composite materials for tubular elements of identical materials, characterized by - a first operation consisting in introducing one or more skeins (5) formed of continuous filaments impregnated with thermosetting resin in a mold (1). This first operation is followed by a prestress on all of the filaments by the combined effect of torsion and ten siops on the ends of the cu of the skeins which emerge from the mold (5 and 6), prestress controlled and maintained before and during l steaming. 2) Composition suivant la revendication 1 caractérisée par le fait que le moule qui reçoit le ou les écheveaux est une partie intégrante de l'ensemble. Ce moule formé de tubes bobinés avec des enroulements hélicoiazux, contribue techniquement a' la résistance mécanique de la pièce, écheveaux et moule constituent l'essentiel du noeud de raccordement.  2) Composition according to claim 1 characterized in that the mold which receives the skein (s) is an integral part of the assembly. This mold formed of tubes wound with helical windings, technically contributes to the mechanical resistance of the part, skeins and mold constitute the main part of the connection node.
FR9010991A 1990-08-31 1990-08-31 MANUFACTURING TECHNIQUE AND COMPOSITION OF MULTIDIRECTIONAL CONNECTION NODE IN THERMOSETTING COMPOSITE MATERIALS FOR TUBULAR ELEMENTS OF THE SAME MATERIALS. Withdrawn FR2666274A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9010991A FR2666274A1 (en) 1990-08-31 1990-08-31 MANUFACTURING TECHNIQUE AND COMPOSITION OF MULTIDIRECTIONAL CONNECTION NODE IN THERMOSETTING COMPOSITE MATERIALS FOR TUBULAR ELEMENTS OF THE SAME MATERIALS.
PCT/FR1991/000697 WO1992004177A1 (en) 1990-08-31 1991-08-30 Manufacturing technique and composition for multidirectional connection node made of heat-settable composite materials for tubular elements made of similar materials
EP91916241A EP0498872A1 (en) 1990-08-31 1991-08-30 Manufacturing technique and composition for multidirectional connection node made of heat-settable composite materials for tubular elements made of similar materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9010991A FR2666274A1 (en) 1990-08-31 1990-08-31 MANUFACTURING TECHNIQUE AND COMPOSITION OF MULTIDIRECTIONAL CONNECTION NODE IN THERMOSETTING COMPOSITE MATERIALS FOR TUBULAR ELEMENTS OF THE SAME MATERIALS.

Publications (1)

Publication Number Publication Date
FR2666274A1 true FR2666274A1 (en) 1992-03-06

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FR9010991A Withdrawn FR2666274A1 (en) 1990-08-31 1990-08-31 MANUFACTURING TECHNIQUE AND COMPOSITION OF MULTIDIRECTIONAL CONNECTION NODE IN THERMOSETTING COMPOSITE MATERIALS FOR TUBULAR ELEMENTS OF THE SAME MATERIALS.

Country Status (3)

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EP (1) EP0498872A1 (en)
FR (1) FR2666274A1 (en)
WO (1) WO1992004177A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700730B1 (en) * 1993-01-25 1995-03-31 David Jean Technique for manufacturing a connection piece of thermosetting composite materials made of continuous fibers on a winding machine.
US6087016A (en) * 1997-06-09 2000-07-11 Inmat, Llc Barrier coating of an elastomer and a dispersed layered filler in a liquid carrier
US6232389B1 (en) 1997-06-09 2001-05-15 Inmat, Llc Barrier coating of an elastomer and a dispersed layered filler in a liquid carrier and coated articles

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602766A (en) * 1948-04-10 1952-07-08 Richard J Francis Reinforced plastic rods and methods of making same
US2934317A (en) * 1954-05-05 1960-04-26 Studebaker Packard Corp Prestressed compressor blade
FR2079486A5 (en) * 1970-02-03 1971-11-12 Pont A Mousson Thermosetting resinous tube joints - with glass fibre reinforcement
FR2082872A5 (en) * 1970-03-31 1971-12-10 Pigeon Daniel Prefabricated frames - of glass fibre reinforced plastics
US3665670A (en) * 1970-04-28 1972-05-30 Nasa Low-mass truss structure
GB1306925A (en) * 1969-02-26 1973-02-14 Cobb C A Connector for tubular members
US4378263A (en) * 1981-01-26 1983-03-29 Logan Robert M Method and apparatus for making a composite material truss
DE8507658U1 (en) * 1985-03-15 1985-06-13 Kuhles, Martin, 5600 Wuppertal Junction connector for spatial frameworks with a mainly tetrahedral basic structure
DE8701515U1 (en) * 1987-01-31 1987-03-26 Schneider, Siegfried, 5650 Solingen Component for modular system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602766A (en) * 1948-04-10 1952-07-08 Richard J Francis Reinforced plastic rods and methods of making same
US2934317A (en) * 1954-05-05 1960-04-26 Studebaker Packard Corp Prestressed compressor blade
GB1306925A (en) * 1969-02-26 1973-02-14 Cobb C A Connector for tubular members
FR2079486A5 (en) * 1970-02-03 1971-11-12 Pont A Mousson Thermosetting resinous tube joints - with glass fibre reinforcement
FR2082872A5 (en) * 1970-03-31 1971-12-10 Pigeon Daniel Prefabricated frames - of glass fibre reinforced plastics
US3665670A (en) * 1970-04-28 1972-05-30 Nasa Low-mass truss structure
US4378263A (en) * 1981-01-26 1983-03-29 Logan Robert M Method and apparatus for making a composite material truss
DE8507658U1 (en) * 1985-03-15 1985-06-13 Kuhles, Martin, 5600 Wuppertal Junction connector for spatial frameworks with a mainly tetrahedral basic structure
DE8701515U1 (en) * 1987-01-31 1987-03-26 Schneider, Siegfried, 5650 Solingen Component for modular system

Also Published As

Publication number Publication date
WO1992004177A1 (en) 1992-03-19
EP0498872A1 (en) 1992-08-19

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