FR2676960A1 - Complexing of materials used in the manufacture of composites for pulling and pumping - Google Patents

Complexing of materials used in the manufacture of composites for pulling and pumping Download PDF

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Publication number
FR2676960A1
FR2676960A1 FR9106770A FR9106770A FR2676960A1 FR 2676960 A1 FR2676960 A1 FR 2676960A1 FR 9106770 A FR9106770 A FR 9106770A FR 9106770 A FR9106770 A FR 9106770A FR 2676960 A1 FR2676960 A1 FR 2676960A1
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France
Prior art keywords
pumping
fabric
complexing
pulling
manufacture
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Granted
Application number
FR9106770A
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French (fr)
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FR2676960B1 (en
Inventor
Gouthez Philippe
Gilles
Andre
Vergne Eric
Antoine
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DIATEX SARL
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DIATEX SARL
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Publication date
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Priority to FR9106770A priority Critical patent/FR2676960B1/en
Publication of FR2676960A1 publication Critical patent/FR2676960A1/en
Application granted granted Critical
Publication of FR2676960B1 publication Critical patent/FR2676960B1/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
    • 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
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

Complexing for pulling and pumping, used in the manufacture of composite materials. The invention relates to the complexing of a pulling fabric (2), of a permeable sheet (3) and of a pumping material (4). This invention will be able to be substituted for the separate pulling fabrics, permeable sheets and pumping fabrics used in the manufacture of composite materials. This improves the quality, the ease of operation and, consequently, the overall cost of the constructions.

Description

La présente invention concerne le complexage d'un tissu de délaminage, d'une feuille perméable, d'un tissu de pompage pour l'arrachage et le pompage. The present invention relates to the lamination of a delamination fabric, a permeable sheet, a pumping fabric for tearing and pumping.

Le domaine technique de l'invention est celui des matériaux composites. The technical field of the invention is that of composite materials.

Description du procédé de fabrication actuel de matériaux composites (fig 1):
Les couches de renfort (des tissus ou mats par exemple) sont disposées successivement dans le moule (5). Celui-ci (bois, plâtre, plastique, composite, métal ...) peut être enduit d'un agent de démoulage.Description of the current manufacturing process for composite materials (fig 1):
The reinforcing layers (fabrics or mats for example) are successively arranged in the mold (5). This (wood, plaster, plastic, composite, metal ...) can be coated with a release agent.

Chaque couche est imprégnée (ou a été préimprégnée) de résine.Each layer is impregnated (or has been prepreg) with resin.

L'empilement (1) des couches est effectué jusqu'à l'obtention de l'épaisseur désirée.The layers (1) are stacked until the desired thickness is obtained.

Une fois ceci fait, vient le tissu d'arrachage (2).Once this is done, comes the tear-off fabric (2).

Il se positionne sur la dernière couche imprégnée.It is positioned on the last impregnated layer.

Il a pour fonction de - créer une bonne surface coté tissu d'arrachage; - répartir uniformément la résine; - éviter les particules gazeuses (air par exemple) dans le composite.Its function is to - create a good surface on the tear-off fabric side; - distribute the resin evenly; - avoid gaseous particles (air for example) in the composite.

Il doit s'imprégner, laisser passer la résine, s'arracher aisément.It must soak up, allow the resin to pass through, tear off easily.

Après mise en place de celui-ci, on dispose une feuille perméable (3) (un film perforé par exemple) qui permettra un passage et une absorption controlée de résine pour obtenir le pourcentage voulu de fibres dans le composite.After installation thereof, there is a permeable sheet (3) (a perforated film for example) which will allow passage and controlled absorption of resin to obtain the desired percentage of fibers in the composite.

Un tissu de pompage (4) ou de drainage recouvre l'ensemble et permet une aspiration homogène de l'air et des solvants se dégageant lors de la polymérisation.A pumping (4) or drainage fabric covers the assembly and allows a homogeneous aspiration of the air and the solvents released during the polymerization.

On peut utiliser ensuite des procédés de mise sous vide (sac à vide (6) plus pompe à vide (7) par exemple) avec ou sans autoclave, pour augmenter la pression sur l'ensemble et avoir un bon pompage.Vacuuming methods can then be used (vacuum bag (6) plus vacuum pump (7) for example) with or without autoclave, to increase the pressure on the assembly and to have good pumping.

Une fois le composite fini (polymérisation effectuée), on enlève le tissu d'arrachage, la feuille perméable et le tissu de pompage.Once the composite is finished (polymerization carried out), the tear-off fabric, the permeable sheet and the pumping fabric are removed.

On sait que pour ce type de fabrication, le tissu d'arrachage (2), la feuille perméable (3) et le tissu de pompage (4) ou de drainage sont commercialisés non complexés et positionnés un par un sur la réalisation. It is known that for this type of manufacture, the tear-off fabric (2), the permeable sheet (3) and the pumping fabric (4) or drainage fabric are sold not complexed and positioned one by one on the production.

Le procédé actuel sans complexage présente les inconvénients suivants - lors d'une découpe à une dimension particulière, il faut nécessairement faire trois découpes d'où une perte de temps; - l'assemblage de ces trois produits (2)+(3)+(4) n'est pas toujours aisé et devient difficile pour des formes complexes, des imperfections peuvent se produire; - on peut manquer d'homogénéité et avoir des problèmes d'aspect et de résistance du composite; - le tissu de pompage n'est pas toujours bien choisi par manque d' information.  The current process without lamination has the following drawbacks - when cutting to a particular dimension, it is necessary to make three cuts, hence a loss of time; - the assembly of these three products (2) + (3) + (4) is not always easy and becomes difficult for complex shapes, imperfections can occur; - one can lack homogeneity and have problems of appearance and resistance of the composite; - the pumping fabric is not always well chosen due to lack of information.

La présente invention vise à supprimer ces inconvénients, elle permet en effet d'obtenir - un très bel aspect du composite; - une résistance supérieure; - une seule découpe au lieu de trois; - facilité de mise en place et limitation des défauts volumiques; - grande homogénéité; - choix d'un tissu de pompage optimum pour le complexage de la présente invention. The present invention aims to eliminate these drawbacks, it in fact makes it possible to obtain - a very beautiful appearance of the composite; - superior resistance; - one cut instead of three; - ease of installation and limitation of volume defects; - great homogeneity; - Choice of an optimum pumping fabric for the lamination of the present invention.

Description de la présente invention
On procède à un complexage de trois matériaux - une matière pour l'arrachage (2) (un tissu par exemple); - une feuille perméable (3) (un film perforé par exemple); - une matière pour le pompage (4) (un tissu par exemple).Description of the present invention
We proceed with a complexing of three materials - a material for tearing (2) (a fabric for example); - a permeable sheet (3) (a perforated film for example); - a material for pumping (4) (a fabric for example).

Le complexage pourra se faire - par collage
Soit : * tissu d'arrachage (2) + film de colle perforé (3) + tissu de pompage (4).Complexing can be done - by bonding
Either: * tear-off fabric (2) + perforated adhesive film (3) + pumping fabric (4).

Le film de colle (colle thermoréactivable par exemple) perforé (3) faisant office de feuille perméable.The perforated adhesive film (heat-activated adhesive for example) (3) acting as a permeable sheet.

* tissu d'arrachage (2) + feuille perméable (3) + collage + tissu de pompage (4). * tear-off fabric (2) + permeable sheet (3) + bonding + pumping fabric (4).

Dans ces deux cas, le film de colle perforé (3) ou la feuille perméable (3) recouvriront toute la surface et le collage effectif sera fait par endroit (de 1 à 1000 points/10cm2 ou quadrillage par exemple).In these two cases, the perforated adhesive film (3) or the permeable sheet (3) will cover the entire surface and the actual bonding will be done in places (from 1 to 1000 points / 10cm2 or grid for example).

Ceci de façon à pouvoir séparer plus facilement les trois matériaux complexés (après la polymérisation).This is so that it is easier to separate the three complexed materials (after the polymerization).

- par soudure tissu d'arrachage (2) + feuille perméable (3) + tissu pompage (4)
La soudure sera effectuée par endroit selon le même principe que le collage (de 1 à 1000 points/lOcm2 ou quadrillage par exemple).- by welding tear-off fabric (2) + permeable sheet (3) + pumping fabric (4)
Welding will be carried out in places according to the same principle as bonding (from 1 to 1000 points / 10cm2 or grid for example).

- tout autre moyen de complexage
Cette invention seule pourra donc se substituer aux tissus d'arrachage, feuilles perméables et tissus de pompage utilisés séparés dans la fabrication composite décrite tout en améliorant la qualité, la facilité de mise en oeuvre et par conséquent le coût global des réalisations.- any other means of lamination
This invention alone can therefore replace the tear-off fabrics, permeable sheets and pumping fabrics used separately in the composite manufacture described while improving the quality, the ease of implementation and therefore the overall cost of the embodiments.

A titre d'exemple non limitatif, nous allons décrire un mode de réalisation selon l'invention
On superpose un tissu d'arrachage (2) , un film perforé de colle thermoréactivable (3) et un tissu de pompage (4).By way of nonlimiting example, we will describe an embodiment according to the invention
A tear-off fabric (2), a perforated film of heat-activated adhesive (3) and a pumping fabric (4) are superimposed.

On passe les trois matériaux entre deux rouleaux qui vont comprimer légèrement l'ensemble.We pass the three materials between two rollers which will slightly compress the whole.

La surface de l'un de ces rouleaux est constituée d'un quadrillage continu ou pointillé. Celui-ci est chauffé. Il est en contact avec le coté tissu d'arrachage.The surface of one of these rollers consists of a continuous or dotted grid. It is heated. It is in contact with the pull-out fabric side.

La chaleur aura pour effet de réactiver le film de colle en certains endroits d'où collage du sandwich.The heat will reactivate the glue film in certain places where the sandwich will stick.

L'effet voulu sera obtenu : complexage d'un tissu d'arrachage, d'une feuille perméable (ici le film de colle perforé) et d'un tissu de pompage. The desired effect will be obtained: lamination of a tear-off fabric, a permeable sheet (here the perforated adhesive film) and a pumping fabric.

Claims (1)

REVENDICATIONS 1) Complexage de matériaux pour l'arrachage et le pompage utilisés dans la fabrication des matériaux composites caractérisé par les matériaux suivants - une matière pour l'arrachage (2); - une feuille perméable (3); - une matière pour le pompage (4). 1) Complexing of materials for uprooting and pumping used in the manufacture of composite materials characterized by the following materials - a material for uprooting (2); - a permeable sheet (3); - a material for pumping (4).
FR9106770A 1991-05-31 1991-05-31 COMPLEXATION OF MATERIALS USED IN THE MANUFACTURE OF COMPOSITES FOR PULLING-OUT AND PUMPING. Expired - Fee Related FR2676960B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9106770A FR2676960B1 (en) 1991-05-31 1991-05-31 COMPLEXATION OF MATERIALS USED IN THE MANUFACTURE OF COMPOSITES FOR PULLING-OUT AND PUMPING.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9106770A FR2676960B1 (en) 1991-05-31 1991-05-31 COMPLEXATION OF MATERIALS USED IN THE MANUFACTURE OF COMPOSITES FOR PULLING-OUT AND PUMPING.

Publications (2)

Publication Number Publication Date
FR2676960A1 true FR2676960A1 (en) 1992-12-04
FR2676960B1 FR2676960B1 (en) 1993-08-06

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Application Number Title Priority Date Filing Date
FR9106770A Expired - Fee Related FR2676960B1 (en) 1991-05-31 1991-05-31 COMPLEXATION OF MATERIALS USED IN THE MANUFACTURE OF COMPOSITES FOR PULLING-OUT AND PUMPING.

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FR (1) FR2676960B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868008A1 (en) * 2004-03-24 2005-09-30 Diatex Sa Multi-layer material complex for vacuum-moulded articles contains three-layer film of material that is permeable at least to gases acting as drainage felt
FR2971449A1 (en) * 2011-02-14 2012-08-17 Diatex MULTILAYER COMPLEX AND USE THEREOF FOR THE MANUFACTURE OF COMPOSITE MATERIAL PARTS, METHOD FOR MANUFACTURING SUCH A PIECE
EP2556946A1 (en) * 2011-08-11 2013-02-13 Airbus Operations GmbH Device for primary forming technical production of an integral structural component of an amplified fiber stringers with composite material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311661A (en) * 1980-05-05 1982-01-19 Mcdonnell Douglas Corporation Resin impregnation process
USH565H (en) * 1983-07-18 1989-01-03 The United States Of America As Represented By The Secretary Of The Navy Method for manufacturing thick glass phenolic laminates
US4816106A (en) * 1984-12-13 1989-03-28 Aeritalia Saipa - Gruppo Velivoli Da Trasporto Method for the controlled curing of composites

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311661A (en) * 1980-05-05 1982-01-19 Mcdonnell Douglas Corporation Resin impregnation process
USH565H (en) * 1983-07-18 1989-01-03 The United States Of America As Represented By The Secretary Of The Navy Method for manufacturing thick glass phenolic laminates
US4816106A (en) * 1984-12-13 1989-03-28 Aeritalia Saipa - Gruppo Velivoli Da Trasporto Method for the controlled curing of composites

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2868008A1 (en) * 2004-03-24 2005-09-30 Diatex Sa Multi-layer material complex for vacuum-moulded articles contains three-layer film of material that is permeable at least to gases acting as drainage felt
FR2971449A1 (en) * 2011-02-14 2012-08-17 Diatex MULTILAYER COMPLEX AND USE THEREOF FOR THE MANUFACTURE OF COMPOSITE MATERIAL PARTS, METHOD FOR MANUFACTURING SUCH A PIECE
WO2012110728A1 (en) * 2011-02-14 2012-08-23 Diatex Multilayer complex and use thereof for manufacturing parts made of a composite material, and method for manufacturing such a part
EP2556946A1 (en) * 2011-08-11 2013-02-13 Airbus Operations GmbH Device for primary forming technical production of an integral structural component of an amplified fiber stringers with composite material

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Publication number Publication date
FR2676960B1 (en) 1993-08-06

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