FR2748964A1 - TUBULAR EQUIPMENT IN COMPOSITE MATERIALS PRODUCED BY WINDING OF FABRICS IMBALANCE IN FRAME ON A COMPRESSIBLE CHUCK - Google Patents

TUBULAR EQUIPMENT IN COMPOSITE MATERIALS PRODUCED BY WINDING OF FABRICS IMBALANCE IN FRAME ON A COMPRESSIBLE CHUCK Download PDF

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Publication number
FR2748964A1
FR2748964A1 FR9606537A FR9606537A FR2748964A1 FR 2748964 A1 FR2748964 A1 FR 2748964A1 FR 9606537 A FR9606537 A FR 9606537A FR 9606537 A FR9606537 A FR 9606537A FR 2748964 A1 FR2748964 A1 FR 2748964A1
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France
Prior art keywords
tube according
winding
tube
fabrics
frame
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.)
Granted
Application number
FR9606537A
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French (fr)
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FR2748964B1 (en
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Individual
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Individual
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Publication date
Priority to FR9606537A priority Critical patent/FR2748964B1/en
Application filed by Individual filed Critical Individual
Priority to JP09541733A priority patent/JP2000510779A/en
Priority to BR9709357A priority patent/BR9709357A/en
Priority to PCT/FR1997/000909 priority patent/WO1997044181A1/en
Priority to KR1019980709358A priority patent/KR20000015809A/en
Priority to AU30374/97A priority patent/AU3037497A/en
Priority to EP97925128A priority patent/EP0907494A1/en
Priority to CN97194881A priority patent/CN1219903A/en
Priority to CA002255860A priority patent/CA2255860A1/en
Priority to PL97330186A priority patent/PL330186A1/en
Priority to TR1998/02381T priority patent/TR199802381T2/en
Publication of FR2748964A1 publication Critical patent/FR2748964A1/en
Application granted granted Critical
Publication of FR2748964B1 publication Critical patent/FR2748964B1/en
Priority to NO985411A priority patent/NO985411L/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • 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
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • 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
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
    • 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
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • 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
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B29K2105/0845—Woven fabrics
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
  • Nonwoven Fabrics (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention discloses composite material tubes, piles, masts subjected to axial compression or bending stresses, produced by an adapted winding of weft-unbalanced woven fabric, such that the main portion of reinforcement fibres is placed parallel to the longitudinal axis of the structure. The tubes, piles and masts are produced by winding on a compressible mandrel to ensure that the tubes are not stressed or subjected to micro-cracking when the mandrel plug is pulled out.

Description

De nombreux équipements, en particulier des pieux et des mâts, sont réalisés en acier et présentent, de ce fait, des inconvénients, tels que a) leur masse élevée et dans certains cas des difficultés
logistiques de mise en place.Many pieces of equipment, in particular piles and masts, are made of steel and therefore have drawbacks, such as a) their high mass and in some cases difficulties.
logistics of implementation.

b) leur sensibilité à la corrosion qu'elle soit aérienne,
aquatique ou terrestre.(b) their sensitivity to corrosion, be it aerial,
aquatic or terrestrial.

c) leur coût d'entretien.(c) their maintenance cost.

Pour répondre, en particulier à ces inconvénients, de tels équipements ont été réalisés en aluminium ou en matériaux composites. Dans le cas de ces équipements, en matériaux composites, la technique généralement utilisée est celle de l'enroulement filamentaire de rowing. To meet these disadvantages in particular, such equipment has been made of aluminum or composite materials. In the case of these equipment, made of composite materials, the technique generally used is that of the filament winding of rowing.

Les équipements, tels que les pieux et les mats, doivent avoir non seulement de bonnes caractéristiques à la rupture, mais aussi présenter une bonne rigidité sous les effets d'un mouvement fléchissant. Equipment, such as piles and masts, must not only have good fracture characteristics, but also exhibit good rigidity under the effects of a bending motion.

Pour cela, il faut que la structure composite profite pleinement, d'une part de la résistance à la rupture en traction et en compression des fibres, et d'autre part, du module de flexion des fibres renforçatrices. Ainsi, il faut que la partie principale de celles-ci soit placée selon l'axe du pieu ou du mât. For this, it is necessary that the composite structure takes full advantage, on the one hand of the tensile strength and compressive strength of the fibers, and on the other hand, the flexural modulus of the reinforcing fibers. Thus, it is necessary that the main part thereof be placed along the axis of the pile or mast.

Selon l'invention, les structures allongées, telles que des mâts, pieux, des poutres, sont réalisées par enroulement, préférentiellement hélicoïdal, de tissus de verre imprégnés de résine thermodurcissable, telle que epoxyde, polyester, vinylester. According to the invention, the elongate structures, such as poles, piles, beams, are made by winding, preferably helically, glass fabrics impregnated with thermosetting resin, such as epoxide, polyester, vinylester.

Selon l'invention, ces tissus sont déséquilibrés en trame, c'est à dire, ont un pourcentage plus important de fil en trame qu'en chaîne ; de plus, leur tissage admet une déformabilité angulaire qui permet, selon l'invention, de placer les fils de trame parallèlement à l'axe x x' de la structure. According to the invention, these fabrics are unbalanced in weft, that is, have a larger percentage of yarn in weft than in warp; in addition, their weaving admits an angular deformability which allows, according to the invention, to place the weft son parallel to the x 'axis of the structure.

L'originalité de la conception de ces tubes composites à haute tenue à la flexion, objet de la présente invention, ressortira de sa description et de la justification technique correspondante.  The originality of the design of these composite tubes with high resistance to bending, object of the present invention, will be apparent from its description and the corresponding technical justification.

Selon l'invention, on réalise donc le tube par enroulement hélicoïdal d'un tissu de verre déséquilibré c/t avec c < t. According to the invention, the tube is therefore produced by helical winding of an unbalanced glass fabric c / t with c <t.

Conformément aux habitudes, c indique le pourcentage de fibre placées en chaîne et t le pourcentage de fibre placée en trame.As usual, c indicates the percentage of fiber placed in a chain and t the percentage of fiber placed in the weft.

On prendra préférentiellement c compris entre 10 et 25 % et t entre 90 et 75 % ; cette modularité du taux permet, en fonction du rapport diamètre/épaisseur, d'assurer une bonne tenue au flambage radial.It will preferably be between 10 and 25% and between 90 and 75%; this modularity of the rate makes it possible, depending on the diameter / thickness ratio, to ensure good resistance to radial buckling.

Selon l'invention, le tube est constitué de couches successives réalisées par enroulement hélicoïdal - aller et retour -. L'enroulement hélicoïdal se fait à l'aller avec un angle de ssl = (900 - a) par rapport à l'axe longitudinal et au retour avec un angle de ss2 = (900 + a). According to the invention, the tube consists of successive layers made by helical winding - going back and forth -. The helical winding is done with an angle of ssl = (900 - a) with respect to the longitudinal axis and the return with an angle of ss2 = (900 + a).

Selon l'invention, l'enroulement hélicoïdal est fait préférentiellement en biaisant le tissu d'un angle a (fig.l) de telle façon que la trame (1) soit parallèle à l'axe longitudinal du tube, la chaîne (2) présentant un angle a, par rapport au plan circonférentiel (3) cette disposition améliore le module de flexion. According to the invention, the helical winding is preferably made by biasing the fabric by an angle α (FIG. 1) such that the weft (1) is parallel to the longitudinal axis of the tube, the warp (2) having an angle α, relative to the circumferential plane (3) this arrangement improves the flexural modulus.

Selon l'invention, l'enroulement de chaque couche est fait préférentiellement par recouvrement partiel(6) des spires successives (4)(5) (fig.2). Pour éviter les surépaisseurs locales, la largeur du décalage A entre deux spires successives est telle
L que A = --, avec L largeur de la nappe et n un nombre entier > 1
n
Sans sortir de l'invention, l'enroulement hélicoïdal est fait soit avec des lés jointives (7) (fig.3), soit avec des lés alternées (fig.4). Les lés (8) et (9) sont placés lors du ler aller. Les lés (10) et (11) lors du ler retour ; les lés (12) et (13) lors du 2ème aller. Ce dernier type d'enroulement améliore la tenue aux efforts de cisaillement inter laminaire.According to the invention, the winding of each layer is preferably done by partial overlap (6) successive turns (4) (5) (fig.2). To avoid local oversize, the width of the offset A between two successive turns is such
L that A = -, with L width of the web and n an integer> 1
not
Without departing from the invention, the helical winding is made either with joined strips (7) (fig.3) or with alternating strips (fig.4). The strips (8) and (9) are placed during the first go. The strips (10) and (11) at the first return; les (12) and (13) during the 2nd go. This last type of winding improves the resistance to inter-laminar shear forces.

Selon l'invention, dans le cas d'un enroulement à spires jointives, les couches successives seront préférentiellement décalées pour diminuer l'effet de discontinuité provoqué par les lés. Par exemple, dans le cas d'un enroulement hélicoïdal à lés jointives de largeur L et de nombre de couches q, l'implantation de chaque couche (aller + retour) est décalée L d'un espace de largeur K tel que K = --- avec m entier > 1 et si
q m possible avec m = ---, r étant un entier (fig.5).According to the invention, in the case of a winding contiguous turns, the successive layers will preferably be shifted to reduce the effect of discontinuity caused by the les. For example, in the case of a helical winding with contiguous width L and number of layers q, the implantation of each layer (go + return) is shifted L of a gap of width K such that K = - - with m integer> 1 and if
qm possible with m = ---, r being an integer (fig.5).

r
Les lés (14) (15) (16) sont les lés du ler aller et les lés (17) (18) (19) sont les lés du 2ème aller.r
The lanes (14) (15) (16) are the lanes of the first one and the lanes (17) (18) (19) are the lanes of the 2nd way.

Si le tissu préférentiellement utilisé est un tissu en fil de verre, on peut, sans sortir de l'invention, utiliser des tissus en carbone, aramide, polyéthylène haute résistance
On peut aussi utiliser des tissus hybrides (ex : verre + carbone).If the preferentially used fabric is a glass fiber fabric, it is possible, without departing from the invention, to use carbon, aramid and high-strength polyethylene fabrics.
Hybrid tissues (eg glass + carbon) can also be used.

Sans sortir de l'invention, les tissus utilisés peuvent être préimprégnés de résine thermodurcissable. Without departing from the invention, the fabrics used may be pre-impregnated with thermosetting resin.

Sans sortir de l'invention, les tissus utilisés peuvent être préimprégnés de résine thermoplastique. Without departing from the invention, the fabrics used may be prepreg of thermoplastic resin.

Sans sortir de l'invention, les tissus peuvent être enroulés en même temps qu'un film thermoplastique et imprégné par fusion compression. Without departing from the invention, the fabrics can be wound together with a thermoplastic film and impregnated by compression melting.

Dans le cas, où l'on réalise des équipements tels que des pieux ou des mâts de fortes épaisseurs, comportant des parties cylindriques et présentant un déséquilibre de renfort de fibres selon l'axe x x' de l'équipement, on constate, après polymérisation, des forces de serrage importantes de la structure composite sur le mandrin ; ce phénomène peut rendre difficile ou empêcher le démandrinage et créer des micro ruptures dans la structure. In the case, where equipment such as piles or masts of large thicknesses, having cylindrical parts and having an imbalance of fiber reinforcement along the axis xx 'of the equipment, is produced, after polymerization large clamping forces of the composite structure on the mandrel; this phenomenon can make difficult or prevent the demandrinage and create micro breaks in the structure.

Pour éviter ces inconvénients majeurs, selon l'invention, on place sur le mandrin une couche régulière de matériaux compressibles, puis on enroule le tissu de verre sur ce mandrin compressible. To avoid these major drawbacks, according to the invention, a regular layer of compressible materials is placed on the mandrel, then the glass fabric is wound on this compressible mandrel.

Selon l'invention, les caractéristiques de compressibilité du matériau seront telles que sa déformabilité restera faible sous l'effort limité d'enroulement du tissu et absorbera le rétreint de la structure composite en ne transmettant au mandrin qu'un faible effort de serrage, facilitant aussi le démandrinage.  According to the invention, the compressibility characteristics of the material will be such that its deformability will remain low under the limited force of winding the fabric and will absorb the shrinkage of the composite structure by transmitting to the mandrel a weak clamping force, facilitating also the demandrinage.

Selon l'invention, le matériau choisi aura un coefficient de frottement faible. According to the invention, the chosen material will have a low coefficient of friction.

Selon l'invention, le matériau est préférentiellement une mousse de polyéthylène à cellule fermée avec une peau glacée. According to the invention, the material is preferably a closed-cell polyethylene foam with an icy skin.

Sans sortir de l'invention, on pourra utiliser un autre matériau présentant les caractéristiques ci-dessus, par exemple des mousses de polyuréthanne souples. Without departing from the invention, it is possible to use another material having the above characteristics, for example flexible polyurethane foams.

Selon l'invention, afin de faciliter le démandrinage et l'état de surface interne du tube, on revêtira la mousse d'un film de terphane. According to the invention, in order to facilitate the demandrinage and the internal surface condition of the tube, the foam is coated with a terphane film.

Dans le cas où les efforts de flexion seraient préférentiels selon une direction radiale privilégiée, selon l'invention on réalisera des tubes de forme oblong (fig.6). Ce type de tube peut s'appliquer par exemple 9 la réalisation de brise vague. In the case where the bending forces are preferred in a preferred radial direction, according to the invention oblong shaped tubes (fig.6) will be made. This type of tube can be applied, for example, to the production of a breeze.

Sans sortir de l'invention, le tube peut être un tube sandwich (fig.7) constitué par deux tubes concentriques (20,21) réalisés selon l'invention et séparés par une paroi (22) en matériau rigide en compression tel que : mousse rigide, nid d'abeille, balsa ... Without departing from the invention, the tube may be a sandwich tube (FIG. 7) consisting of two concentric tubes (20, 21) made according to the invention and separated by a wall (22) made of a rigid material in compression such that: rigid foam, honeycomb, balsa ...

Cette solution permet d'alléger les tubes et d'améliorer la rigidité. This solution makes it possible to lighten the tubes and to improve rigidity.

Sans sortir de l'invention, pour améliorer la rigidité en cas d'effort de flexion selon un axe préférentiel, le tube intérieur pourra être cylindrique et le tube extérieur oblong.  Without departing from the invention, to improve the stiffness in case of bending force along a preferred axis, the inner tube may be cylindrical and the outer tube oblong.

Claims (10)

REVENDICATIONS 1) Tube en matériaux composite caractérisé en ce qu'il est1) Composite material tube characterized in that it is réalisé par enroulement hélicoïdal de tissu déséquilibré en made by helical winding of unbalanced fabric into trame, par rapport à la chaîne. frame, relative to the chain. 2) Tube selon la revendication 1 caractérisé en ce qu'il est2) Tube according to claim 1 characterized in that it is réalisé en biaisant le tissu d'un angle égal à l'angle made by skewing the fabric at an angle equal to the angle d'enroulement hélicoïdal. helical winding. 3) Tube selon l'une ou plusieurs des revendications 1 et 2,3) Tube according to one or more of claims 1 and 2, caractérisé en ce que l'enroulement hélicoïdal du tube est characterized in that the helical winding of the tube is réalisé par recouvrement partiel des spires successives. achieved by partial recovery of successive turns. 4) Tube selon l'une ou plusieurs des revendications 1 et 2,4) Tube according to one or more of claims 1 and 2, caractérisé en ce que les lés sont jointives ou alternées characterized in that the strips are joined or alternating et dont les couches successives sont décalées pour and whose successive layers are shifted to équilibrer les discontinuités dues aux lés. to balance discontinuities due to les. 5) Tube selon l'une quelconque des revendications précédentes,5) Tube according to any one of the preceding claims, caractérisé en ce que le tissu utilisé est composé de characterized in that the fabric used is composed of fibres monotype ou hybride. monotype or hybrid fibers. 6) Tube selon l'une quelconque des revendications précédentes,6) Tube according to any one of the preceding claims, caractérisé en ce que son profil est cylindrique ou oblong. characterized in that its profile is cylindrical or oblong. 7) Tube selon l'une quelconque des revendications précédentes,7) Tube according to any one of the preceding claims, caractérisé en ce que sa structure est mono paroi. characterized in that its structure is single-walled. 8) Tube selon l'une quelconque des revendications 4 8) Tube according to any one of claims 4 caractérisé en ce que sa structure est sandwich, avec une characterized in that its structure is sandwich, with a matière résistante en compression comprise entre les deux material resistant in compression between the two tubes. tubes. 9) Tube selon l'une quelconque des revendications précédentes,9) Tube according to any one of the preceding claims, caractérisé en ce que son mandrin d'enroulement est revêtu characterized in that its winding mandrel is coated d'une couche de matériau compressible. a layer of compressible material. 10) Tube selon la revendications 9, caractérisé en ce que le10) Tube according to claim 9, characterized in that the matériau compressible est une mousse de polyéthylène à compressible material is a polyethylene foam to cellule fermée.  closed cell.
FR9606537A 1996-05-23 1996-05-23 TUBULAR EQUIPMENT IN COMPOSITE MATERIALS MADE BY WINDING UNBALANCED TISSUE ON A COMPRESSIBLE CHUCK Expired - Fee Related FR2748964B1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR9606537A FR2748964B1 (en) 1996-05-23 1996-05-23 TUBULAR EQUIPMENT IN COMPOSITE MATERIALS MADE BY WINDING UNBALANCED TISSUE ON A COMPRESSIBLE CHUCK
CA002255860A CA2255860A1 (en) 1996-05-23 1997-05-23 Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel
PCT/FR1997/000909 WO1997044181A1 (en) 1996-05-23 1997-05-23 Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel
KR1019980709358A KR20000015809A (en) 1996-05-23 1997-05-23 Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel
AU30374/97A AU3037497A (en) 1996-05-23 1997-05-23 Composite material tubular equipment produced by winding of weft-unbalanced wov en fabric on a compressible mandrel
EP97925128A EP0907494A1 (en) 1996-05-23 1997-05-23 Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on a compressible mandrel
JP09541733A JP2000510779A (en) 1996-05-23 1997-05-23 Tubular members in composites obtained by winding unevenly woven fibers on a compressible mandrel
BR9709357A BR9709357A (en) 1996-05-23 1997-05-23 Tube of a composite material
PL97330186A PL330186A1 (en) 1996-05-23 1997-05-23 Tubular components made of composite plastic materials by winding a fabric of unbalanced weave around an elastic compressible core
TR1998/02381T TR199802381T2 (en) 1996-05-23 1997-05-23 Tubular elements in composite materials obtained by wrapping unbalanced mesh tissue on a compressible mandrel.
CN97194881A CN1219903A (en) 1996-05-23 1997-05-23 Composite material tubular equipment produced by winding of weft-unbalanced woven fabric on compressible mandrel
NO985411A NO985411L (en) 1996-05-23 1998-11-20 Tubular composite equipment manufactured by weaving weft imbalance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9606537A FR2748964B1 (en) 1996-05-23 1996-05-23 TUBULAR EQUIPMENT IN COMPOSITE MATERIALS MADE BY WINDING UNBALANCED TISSUE ON A COMPRESSIBLE CHUCK

Publications (2)

Publication Number Publication Date
FR2748964A1 true FR2748964A1 (en) 1997-11-28
FR2748964B1 FR2748964B1 (en) 1998-08-07

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FR9606537A Expired - Fee Related FR2748964B1 (en) 1996-05-23 1996-05-23 TUBULAR EQUIPMENT IN COMPOSITE MATERIALS MADE BY WINDING UNBALANCED TISSUE ON A COMPRESSIBLE CHUCK

Country Status (12)

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EP (1) EP0907494A1 (en)
JP (1) JP2000510779A (en)
KR (1) KR20000015809A (en)
CN (1) CN1219903A (en)
AU (1) AU3037497A (en)
BR (1) BR9709357A (en)
CA (1) CA2255860A1 (en)
FR (1) FR2748964B1 (en)
NO (1) NO985411L (en)
PL (1) PL330186A1 (en)
TR (1) TR199802381T2 (en)
WO (1) WO1997044181A1 (en)

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CN1219903A (en) 1999-06-16
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TR199802381T2 (en) 1999-06-21
NO985411L (en) 1998-11-23
WO1997044181A1 (en) 1997-11-27
PL330186A1 (en) 1999-04-26
FR2748964B1 (en) 1998-08-07
JP2000510779A (en) 2000-08-22
KR20000015809A (en) 2000-03-15
NO985411D0 (en) 1998-11-20
AU3037497A (en) 1997-12-09
BR9709357A (en) 1999-08-10

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