FR2897294A1 - Multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure - Google Patents

Multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure Download PDF

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Publication number
FR2897294A1
FR2897294A1 FR0601256A FR0601256A FR2897294A1 FR 2897294 A1 FR2897294 A1 FR 2897294A1 FR 0601256 A FR0601256 A FR 0601256A FR 0601256 A FR0601256 A FR 0601256A FR 2897294 A1 FR2897294 A1 FR 2897294A1
Authority
FR
France
Prior art keywords
membrane
mold
self
manufacture
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.)
Pending
Application number
FR0601256A
Other languages
French (fr)
Inventor
Gerard Joly
Eric Deneux
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.)
POLE DE PLASTURGIE de l EST AS
Original Assignee
POLE DE PLASTURGIE de l EST AS
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 POLE DE PLASTURGIE de l EST AS filed Critical POLE DE PLASTURGIE de l EST AS
Priority to FR0601256A priority Critical patent/FR2897294A1/en
Priority to FR0651433A priority patent/FR2897297B1/en
Priority to FR0651428A priority patent/FR2897295B1/en
Priority to FR0651432A priority patent/FR2897296B1/en
Priority to FR0651431A priority patent/FR2897291B1/en
Priority to PCT/FR2007/050793 priority patent/WO2007093738A2/en
Priority to PCT/FR2007/050792 priority patent/WO2007093737A2/en
Priority to PCT/FR2007/050791 priority patent/WO2007093736A2/en
Priority to US12/162,632 priority patent/US20090041884A1/en
Priority to EP07731616A priority patent/EP1984159A2/en
Publication of FR2897294A1 publication Critical patent/FR2897294A1/en
Pending 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
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3607—Moulds for making articles of definite length, i.e. discrete articles with sealing means or the like
    • 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
    • B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing
    • 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
    • B29C70/544—Details of vacuum bags, e.g. materials or shape
    • 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
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3488—Feeding the material to the mould or the compression means uniformly distributed into the mould
    • 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
    • B29K2105/0854—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 in the form of a non-woven mat

Abstract

The multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure. The various layers in the membrane give flexibility and adaptability in many cases. The membrane is adjustable to a shape of a mold, and offers a possibility of a thermal regulation by putting into circulation of a tempered fluid through the layers. The membrane allows automatic closure and sealing of an inflatable belt in periphery chucking of the layer, which is against a rigid profile. The multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure. The various layers in the membrane give flexibility and adaptability in many cases. The membrane is adjustable to a shape of a mold, and offers a possibility of a thermal regulation by putting into circulation of a tempered fluid through the layers. The membrane allows automatic closure and sealing of an inflatable belt in periphery chucking of the layer, which is against a rigid profile. The membrane is incorporated in a device for distributing injection for better flow of a resin. A weight and storage of the membrane is optimized.

Description

Le dispositif concerne la fabrication de pièces en matériaux composites deThe device relates to the manufacture of composite material parts of

grande dimension et de forme complexe. La présente invention est destinée aussi bien à une opération d'injection à l'aide du vide ou à une opération d'infusion de résine à travers un renfort fibreux, qu'à une opération d'injection mixte. Cette membrane est dite intelligente dans la mesure où elle est autoajustable et autoportante, étanche et munie d'un dispositif de régulation thermique. Elle présentera aussi de nombreux aspects adaptés à la réalisation de ce type d'injection.  large size and complex shape. The present invention is intended both for a vacuum injection operation or a resin infusion operation through fibrous reinforcement, as for a mixed injection operation. This membrane is said to be intelligent in that it is self-adjusting and self-supporting, waterproof and provided with a thermal control device. It will also present many aspects adapted to the realization of this type of injection.

La fermeture d'un moule d'infusion est traditionnellement effectuée avec une bâche spéciale en silicone ou en thermoplastique dont le vieillissement n'est pas adapté à son utilisation. L'étanchéité est actuellement réalisée au moyen de mastic recouvert, sur ses deux faces, d'une matière auto-collante. Lorsque les pièces sont de grandes dimensions, ce type de bâche n'est pas facilement manipulable et sa pose n'est pas précise. Actuellement ces membranes s'ajustent simplement aux renforts et n'assurent aucune forme. Aucun système de régulation thermique, système d'évent interchangeable, système de fermeture n'est intégré à ce type de membrane.  The closure of an infusion mold is traditionally carried out with a special sheet of silicone or thermoplastic whose aging is not adapted to its use. Watertightness is currently achieved by means of putty coated on both sides with a self-adhesive material. When the parts are large, this type of tarpaulin is not easily manipulated and its installation is not precise. Currently these membranes simply adjust to the reinforcements and provide no form. No thermal control system, interchangeable vent system, closure system is integrated with this type of membrane.

Le concept, selon l'invention, met en place des solutions pour faciliter la réalisation et pour limiter les déchets inhérents à ce type 25 d'injection.  The concept according to the invention sets up solutions to facilitate the production and to limit the waste inherent in this type of injection.

La bâche se compose de plusieurs couches et de raidisseurs gonflables (FIG.1). La couche (1) est directement en contact avec la résine infusée : elle est réalisée au moyen d'une matière 30 spéciale, compatible avec les solvants de résine, mais non adhérente avec ces derniers lors de leur polymérisation. La couche (1) est mise en forme selon les techniques de chaudronnerie et par thermoformage afin d'épouser au maximum les formes du moule. L'homogénéité du tissu est ainsi optimisé. 35 La couche (2), assemblée à la couche (1), par des fixations de type velcro, en ces parties inférieures (4), ne sera jamais en contact avec la résine. Elle a pour objectif de créer des canaux indépendants à travers lesquels la circulation d'un fluide tempéré pourrait être mise en place.  The tarpaulin consists of several layers and inflatable stiffeners (FIG. The layer (1) is directly in contact with the infused resin: it is made by means of a special material, compatible with the resin solvents, but not adherent with the latter during their polymerization. The layer (1) is shaped according to boilermaking techniques and by thermoforming in order to fit the shapes of the mold to the maximum. The homogeneity of the fabric is thus optimized. The layer (2), joined to the layer (1), by velcro-type fasteners, in these lower parts (4), will never be in contact with the resin. It aims to create independent channels through which the circulation of a tempered fluid could be put in place.

Les raidisseurs gonflables (3), fixés à la couche (1) par des lanières, sont chargés de mettre en forme et de maintenir la bâche en position. Ils peuvent être préformés et permettraient ainsi, une fois gonflés, d'obtenir une forme particulière adaptée à la surface du moule (FIG.2). Ces raidisseurs permettent une manipulation io plus aisée de la membrane lorsque les pièces seront de grandes dimensions.  The inflatable stiffeners (3), attached to the layer (1) by straps, are responsible for shaping and holding the sheet in position. They can be preformed and thus allow, once inflated, to obtain a particular shape adapted to the surface of the mold (FIG.2). These stiffeners allow easier handling of the membrane when the parts will be large.

La bâche dispose d'une fermeture périphérique étanche et automatique qui se met en place dès que le joint gonflable (5) est 15 mis sous pression (FIG.3). La membrane (1) est alors maintenue entre le profil rigide (7) et le joint gonflable (5). Le profil rigide (7) est solidaire du moule (0).  The tarpaulin has a sealed and automatic peripheral closure which is put in place as soon as the inflatable seal (5) is pressurized (FIG. The membrane (1) is then held between the rigid profile (7) and the inflatable seal (5). The rigid profile (7) is integral with the mold (0).

La présente invention peut aussi, suivant les besoins, intégrer 20 des répartiteurs d'injection chargés de guider la résine au cours de son avancée. Ces canaux présentés dans plusieurs configurations sur les figures 4, 5 et 6. Avant l'injection (FIG.4), les canaux (7), fixés à la membrane (1) par les cordons de soudure (8), sont inactifs. Au cours de l'injection (FIG.5), les canaux (7) sont mis 25 sous pression afin de soulever la bâche (1) et de créer, par conséquent, des passages pour que la résine (10) puisse alimenter le tissu. A la fin de l'injection (FIG.6), les canaux (7) sont mis à la pression atmosphériques pour estomper les traces créés par ces canaux et limiter le marquage de la pièce.  The present invention may also, as required, incorporate injection distributors to guide the resin during its advance. These channels presented in several configurations in Figures 4, 5 and 6. Before the injection (FIG.4), the channels (7), fixed to the membrane (1) by the weld beads (8), are inactive. During the injection (FIG. 5), the channels (7) are pressurized to lift the cover (1) and thereby create passages for the resin (10) to feed the fabric. . At the end of the injection (FIG. 6), the channels (7) are put under atmospheric pressure to blur the traces created by these channels and limit the marking of the part.

30 L'étanchéité rapide et optimisée, le thermoformage de la membrane (1) résistant aux matières injectées, les raidisseurs ainsi que le poids de cette membrane confère à ce produit son caractère réutilisable, et donc par conséquent novateur. Dans le cas d'un moule complexe, cette membrane pourra être réalisée en plusieurs parties soudées entre elles. Cette 35 -3-- membrane peut ainsi présenter une forme parfaitement complémentaire à celle du moule et assure par conséquent une mise sous pression optimale du tissu notamment dans les angles. En plus de la praticité apportée par cette rigidité, la précision et la rapidité de la pose sont aussi améliorées.The fast and optimized sealing, the thermoforming of the membrane (1) resistant to injected materials, the stiffeners and the weight of this membrane gives this product its reusable character, and therefore innovative. In the case of a complex mold, this membrane may be made of several parts welded together. This membrane may thus have a shape perfectly complementary to that of the mold and therefore ensures optimal pressurization of the tissue, especially in the corners. In addition to the practicality provided by this rigidity, the accuracy and speed of installation are also improved.

Claims (10)

REVENDICATIONS 1) Membrane intelligente, autostructurelle caractérisée par son caractère multi-couches : les différentes couches permettent une flexibilité et une faculté d'adaptation à de nombreux cas.  1) Intelligent membrane, autostructural characterized by its multi-layer nature: the different layers allow flexibility and adaptability to many cases. 2) Membrane, selon la revendication 1, autoportante : sa structure permet ainsi une manipulation et une pose plus aisée et plus précise.  2) Membrane, according to claim 1, self-supporting: its structure thus allows handling and laying easier and more accurate. 3) Membrane, selon les revendications 1 et 2, ajustable à la forme du moule.  3) membrane according to claims 1 and 2, adjustable to the shape of the mold. 4) Membrane, selon les revendications 1, 2 et 3, résistante au solvant de résine présentant un démoulage amélioré.  4) A membrane, according to claims 1, 2 and 3, resistant to the resin solvent having improved mold release. 5) Membrane, selon la revendication 1, offrant la possibilité d'une régulation thermique par mise en circulation d'un fluide tempéré à travers des les couches (1) et (2).  5) membrane according to claim 1, providing the possibility of a temperature regulation by circulating a tempered fluid through the layers (1) and (2). 6) Membrane, selon les revendications 1, 2 et 3, permettant une fermeture et une étanchéité automatique : une ceinture gonflable en périphérie vient plaquer la couche (1) contre un profil rigide (6).  6) Membrane, according to claims 1, 2 and 3, for closing and automatic sealing: an inflatable belt periphery comes to press the layer (1) against a rigid profile (6). 7) Membrane, selon les revendications 1, 3 et 4, intégrant un dispositif chargé de répartir l'injection afin de mieux gérer l'avancée de la résine.  7) Membrane, according to claims 1, 3 and 4, incorporating a device for distributing the injection to better manage the advance of the resin. 8) Membrane, selon la revendication 7, limitant les traces résiduelles du dispositif d'injection.  8) membrane according to claim 7, limiting the residual traces of the injection device. 9) Membrane d'injection, selon l'une quelconque des revendications précédentes, réutilisable et réparable.  9) Injection membrane, according to any one of the preceding claims, reusable and repairable. 10) Membrane, selon l'une quelconque des revendications 30 précédentes, pour laquelle le poids et le stockage est optimisé.  10) A membrane according to any one of the preceding claims, wherein the weight and storage is optimized.
FR0601256A 2006-02-14 2006-02-14 Multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure Pending FR2897294A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR0601256A FR2897294A1 (en) 2006-02-14 2006-02-14 Multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure
FR0651433A FR2897297B1 (en) 2006-02-14 2006-04-24 MOLD CLOSURE SYSTEM FOR CLOSED MOLD TECHNICAL MOLDING, IN PARTICULAR BY INFUSION OR INJECTION OF RESIN
FR0651428A FR2897295B1 (en) 2006-02-14 2006-04-24 BASKET FOR CLOSING A MOLDING MOLD BY FULLY MOLDED TECHNIQUE, AND IN PARTICULAR BY INFUSION OR INJECTION OF RESIN
FR0651432A FR2897296B1 (en) 2006-02-14 2006-04-24 BASE FOR CLOSING A MOLDING MOLD BY FIXED MOLD TECHNIQUE, PARTICULARLY BY INFUSION OR INJECTION OF RESIN
FR0651431A FR2897291B1 (en) 2006-02-14 2006-04-24 BASKET FOR CLOSING A MOLDING MOLD BY FULLY MOLDED TECHNIQUE, AND IN PARTICULAR BY INFUSION OR INJECTION OF RESIN
PCT/FR2007/050793 WO2007093738A2 (en) 2006-02-14 2007-02-13 System for closing a moulding mould using closure mould technology, especially resin infusion or injection
PCT/FR2007/050792 WO2007093737A2 (en) 2006-02-14 2007-02-13 Cover for closing a moulding mould using closure mould technology, especially resin infusion or injection
PCT/FR2007/050791 WO2007093736A2 (en) 2006-02-14 2007-02-13 Cover for closing a moulding mould using closure mould technology, especially resin infusion or injection
US12/162,632 US20090041884A1 (en) 2006-02-14 2007-02-13 Cover for closing a moulding mould using closure mould technology, especially resin infusion or injection
EP07731616A EP1984159A2 (en) 2006-02-14 2007-02-13 Cover for closing a moulding mould using closure mould technology, especially resin infusion or injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0601256A FR2897294A1 (en) 2006-02-14 2006-02-14 Multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure

Publications (1)

Publication Number Publication Date
FR2897294A1 true FR2897294A1 (en) 2007-08-17

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FR0601256A Pending FR2897294A1 (en) 2006-02-14 2006-02-14 Multilayer auto structural intelligent membrane for producing counter-mold with a frame in a manufacture of composite pieces, comprises a self-supporting structure

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015067440A1 (en) * 2013-11-06 2015-05-14 Airbus Operations Gmbh Arrangement and method for producing a composite material component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015067440A1 (en) * 2013-11-06 2015-05-14 Airbus Operations Gmbh Arrangement and method for producing a composite material component
CN105705320A (en) * 2013-11-06 2016-06-22 空中客车作业有限公司 Arrangement and method for producing a composite material component
US10336015B2 (en) 2013-11-06 2019-07-02 Airbus Operations Gmbh Arrangement and method for producing a composite material component

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