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FR2613280A1 - Impervious, heat-resistant flexible composite material, method of manufacturing this material, device for joining fluid-transporting pipes, and flat seal (gasket) - Google Patents

Impervious, heat-resistant flexible composite material, method of manufacturing this material, device for joining fluid-transporting pipes, and flat seal (gasket) Download PDF

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Publication number
FR2613280A1
FR2613280A1 FR8704748A FR8704748A FR2613280A1 FR 2613280 A1 FR2613280 A1 FR 2613280A1 FR 8704748 A FR8704748 A FR 8704748A FR 8704748 A FR8704748 A FR 8704748A FR 2613280 A1 FR2613280 A1 FR 2613280A1
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FR
France
Prior art keywords
cuff
composite material
pipes
glue
layers
Prior art date
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Granted
Application number
FR8704748A
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French (fr)
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FR2613280B1 (en
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TEXTILES TECH FRANCAIS
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TEXTILES TECH FRANCAIS
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Priority to FR8704748A priority Critical patent/FR2613280B1/en
Publication of FR2613280A1 publication Critical patent/FR2613280A1/en
Application granted granted Critical
Publication of FR2613280B1 publication Critical patent/FR2613280B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2581/00—Seals; Sealing equipment; Gaskets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The composite material of the invention is flexible, impervious and heat resistant. It is composed of at least two layers 1, 2 of silica textile fabric, these layers being adhesively bonded to each other by an adhesive 3 based on alkaline silicates. In order to manufacture this product, each surface intended to be adhesively bonded is coated with adhesive and then scraped so as to distribute the adhesive uniformly and to remove the excess therefrom. The surfaces intended to be adhesively bonded to each other are applied against each other. The assembly is passed between presser rollers. The invention also relates to a joining device and a flat seal (gasket), both made with this composite material.

Description

MATERIAU COMPOSITE SOUPLE. ETANCHE ET RESISTANT A LA CHULEVR.  FLEXIBLE COMPOSITE MATERIAL. WATERPROOF AND CHULEVR RESISTANT.

PROCEDE DE FABRICATION DE CE HATERIAU, DISPOSITIF DE RACCORDEMENT
DE CONDUITES DE TRANSPORT DE FLUIDE ET JOINT PLAT.METHOD OF MANUFACTURING THIS HATERIAL, CONNECTING DEVICE
OF FLUID CONVEYANCE LINES AND FLAT GASKET.

La presente invention concerne un matériau composite souple, étanche et résistant à la chaleur, le procédé de fabrication de ce matériau et un dispositif de raccordement de conduites de transport de fluide.The present invention relates to a flexible, waterproof and heat resistant composite material, the method of manufacturing this material and a device for connecting fluid transport pipes.

Les conduites de transport de fluides soumises à de fortes variations de température sont soumises à des dilatations importantes. C'est pourquoi les éléments rigides qui les composent sont reliés par des dispositifs de raccordement qui doivent, en même temps qu'ils assurent la circulation des fluides, compenser les dilatations des éléments rigides.Fluid transport lines subject to large temperature variations are subject to significant expansion. This is why the rigid elements which compose them are connected by connection devices which must, at the same time as ensuring the circulation of the fluids, compensate for the expansions of the rigid elements.

Dans ce même type de conduites des éléments de gaines peuvent être reliés par des brides métalliques entre lesquelles sont placés des joints plats.In the same type of pipes, duct elements can be connected by metal flanges between which are placed flat seals.

On trouve traditionnellement ce type de dispositif dans des industries trés diverses telles que l'automobile, la pétrochimie, les cimenteries..., et plus particulièrement autour des fours et dans les systèmes de climatisation.This type of device is traditionally found in very diverse industries such as the automobile, petrochemicals, cement works, etc., and more particularly around ovens and in air conditioning systems.

Les dispositifs de raccordement de conduites de transport de fluides doivent réunir des qualités souvent contradictoires : ils doivent avoir
- une bonne résistance mécanique, condition nécessaire pour assurer le transport des fluides et résister a d éventuelles agressions externes.The devices for connecting fluids transport pipes must combine often contradictory qualities: they must have
- good mechanical strength, a necessary condition for transporting fluids and withstanding possible external aggressions.

une longue durée de vie. L'entretien des conduites est évidemment très coûteux et doit être aussi allégé que possible. a long service life. Line maintenance is obviously very expensive and should be made as light as possible.

une bonne résistance à la température puisqu'elles sont destinées à transporter des fluides eux-mêmes portés à des températures élevées.  good temperature resistance since they are intended to transport fluids themselves brought to high temperatures.

- une grande souplesse puisqu'ils doivent sur leurs seules longueurs supporter et compenser les dilatations produites par les variations de températures de l'ensemble des conduites. - great flexibility since they have to bear only their lengths and compensate for the expansions produced by the temperature variations of all the pipes.

- une bonne étanchéité au fluide transporté afin qu'une partie de celui-ci ne soit perdue à chaque raccordement engendrant de nombreux inconvénients. - A good seal against the transported fluid so that part of it is not lost at each connection causing numerous drawbacks.

Selon l'art antérieur connu le plus proche de l'invention, les dispositifs de raccordement de conduites de transport de fluide comportent une manchette souple qui, dans le cas d'un fluide porté à haute température, est habituellement composée d'un matelassage fait essentiellement à partir de laine de céramique, de tissu de verre et (ou) de produit réfractaire. Cet ensemble n'étant pas étanche est entouré d'un tissu enduit d'un élastomère dont la tenue à la température est limitée à moins de 300'C.According to the known prior art closest to the invention, the devices for connecting fluid transport pipes include a flexible cuff which, in the case of a fluid brought to high temperature, is usually composed of a padding made mainly from ceramic wool, glass fabric and / or refractory product. This assembly is not waterproof and is surrounded by a fabric coated with an elastomer whose resistance to temperature is limited to less than 300 ° C.

Ces dispositifs sont complexes, coûteux, relativement fragiles et mal adaptés à des températures de fluide dépassant 250' C.These devices are complex, expensive, relatively fragile and ill-suited to fluid temperatures exceeding 250 ° C.

L'objectif de l'invention est donc la réalisation d'un dispositif de raccordement de conduites, simple et présentant de meilleures performances.The objective of the invention is therefore to produce a device for connecting pipes, simple and having better performance.

A cet effet, selon l'invention, il est d'abord proposé un nouveau matériau composite souple, étanche, et résistant à la chaleur, composé d'au-moins deux couches de tissu textile de silice collées lune à l'autre par une colle à base de silicates alcalins.To this end, according to the invention, a new flexible, waterproof, and heat-resistant composite material is first proposed, composed of at least two layers of silica textile fabric glued one to the other by a glue based on alkaline silicates.

L'invention concerne également un procédé de fabrication d'un tel matériau dans lequel chaque surface destinée à être collée est enduite de colle, puis raclée de manière à répartir la colle uniformément et à en enlever la partie surabondante. Les surfaces destinées à être collées les unes avec les autres sont appliquées les unes contre les autres. L'ensemble est passé entre des rouleaux presseurs. The invention also relates to a method of manufacturing such a material in which each surface intended to be bonded is coated with adhesive, then scraped so as to distribute the adhesive uniformly and to remove the superabundant part thereof. The surfaces intended to be bonded with each other are applied against each other. The assembly is passed between pressing rollers.

Le séchage est réalisé à une température comprise entre 10 c et 100'C pendant environ 24 h.Drying is carried out at a temperature between 10 ° C. and 100 ° C. for approximately 24 hours.

L'invention concerne encore un dispositif de raccordement de conduites de transport de fluide du type comportant une manchette et des moyens de liaison de cette manchette aux conduites dans lequel la manchette est fabriquée dans le matériau composite souple, étanche spécifié plus haut.The invention also relates to a device for connecting fluid transport conduits of the type comprising a cuff and means for connecting this cuff to the conduits in which the cuff is made of the flexible, waterproof composite material specified above.

L'invention concerne aussi un joint plat destiné, par exemple, au raccordement de brides métalliques sur une conduite de transport de fluide et fabriqué dans le matériau composite précisé plus haut. Ce joint plat peut aussi assurer l'étanchéité de trappes de visite, regards, portes, trous d'homme etc...The invention also relates to a flat seal intended, for example, for the connection of metal flanges to a fluid transport pipe and manufactured in the composite material specified above. This flat seal can also ensure the tightness of inspection hatches, manholes, doors, manholes, etc.

L'invention sera mieux comprise à l'aide de la description suivante faite en référence aux dessins annexés dans lesquels
la figure 1 représente schématiquement le matériau de l'invention.The invention will be better understood using the following description made with reference to the accompanying drawings in which
Figure 1 shows schematically the material of the invention.

la figure 2 réprésente schématiquement la phase finale du procédé de fabrication selon l'invention. FIG. 2 schematically represents the final phase of the manufacturing process according to the invention.

la figure 3 représente l'un des modes de réalisation d'un dispositif de raccordement de conduites de transport de fluide selon l'invention. FIG. 3 represents one of the embodiments of a device for connecting fluid transport pipes according to the invention.

la figure 4 représente le raccordement de deux brides métalliques dont l'étanchéité est assurée par un joint plat selon l'invention. Figure 4 shows the connection of two metal flanges whose sealing is ensured by a flat seal according to the invention.

Le matériau composite de l'invention est souple, étanche et résistant à la chaleur. Il est composé d'au-moins deux couches 1,2 de tissu textile de silice collées lune à l'autre par une colle 3 d base de silicates alcalins.The composite material of the invention is flexible, waterproof and heat resistant. It is composed of at least two layers 1,2 of silica textile fabric glued one to the other by an adhesive 3 d based on alkali silicates.

Ainsi ce matériau bénéficie en ce qui concerne la résistance à la chaleur des propriétés du tissu textile de silice 1, 2 qui est au contact direct de la source de chaleur éventuelle. Cette colle à base de silicate 3 procure au matériau composite ses qualités d'étanchéité.Thus this material benefits as regards the heat resistance of the properties of the silica textile fabric 1, 2 which is in direct contact with the possible heat source. This silicate-based adhesive 3 gives the composite material its sealing qualities.

Un matériau composite selon l'invention peut le plus souvent être réalisé avec deux couches de tissu textile de silice. Toutefois des applications particulières peuvent nécessiter un matériau dont les qualités d'isolation, d'étanchéité ou de résistance mécanique soient encore renforcées. En ce cas un plus grand nombre de couches textiles sera prévu, chacune d'elles pouvant être associée à la suivante de la même manière que les deux couches de la réalisation de base.A composite material according to the invention can most often be produced with two layers of silica textile fabric. However, particular applications may require a material whose qualities of insulation, sealing or mechanical strength are further enhanced. In this case, a larger number of textile layers will be provided, each of which can be associated with the next in the same way as the two layers of the basic embodiment.

Selon un mode de réalisation préféré le tissage du tissu de silice 1, 2 utilisé est régulier, serré et sans défaut.According to a preferred embodiment, the weaving of the silica fabric 1, 2 used is regular, tight and flawless.

Ces caractéristiques permettent d'éviter que la couche de colle 3 ne pénètre le tissu de silice 1, 2 lors de son enduction et le rend cassant.These characteristics make it possible to prevent the adhesive layer 3 from penetrating the silica fabric 1, 2 during its coating and making it brittle.

A titre d'exemple non limitatif, le tissu de silice 1, 2 utilisé peut être réalisé avec des fils ayant un diamètre de 8 à 9 microns, composés â 96 8 de silice et incorporant éventuellement des produits destinés à faciliter le tissage. Ce tissu a un point de fusion supérieur à 1600' C.By way of nonlimiting example, the silica fabric 1, 2 used can be produced with threads having a diameter of 8 to 9 microns, composed of 96 to 8 silica and optionally incorporating products intended to facilitate weaving. This fabric has a melting point above 1600 ° C.

Un tissu de ce type est commercialisé sous la dénomination "Siltemp et fabriqué par l'entreprise gAmetek". Ce produit existe en deux épaisseurs (0,76 et 1,37 mm correspondant respectivement à un poids surfacique de 610 et 1220 g/m2). A fabric of this type is sold under the name "Siltemp and manufactured by the company gAmetek". This product exists in two thicknesses (0.76 and 1.37 mm respectively corresponding to a surface weight of 610 and 1220 g / m2).

Selon un mode de réalisation préféré le matériau composite de l'invention est réalisé avec une colle 3 qui incorpore un adjuvant plastifiant et un réactif de prise.According to a preferred embodiment, the composite material of the invention is produced with an adhesive 3 which incorporates a plasticizing adjuvant and a setting reagent.

Ce type de colle est usuellement conservé sous forme de deux composants séparés, mélangés juste avant leur utilisation. D'une part les silicates alcalins, d'autre part les réactifs de prise les plastifiants ainsi que les différentes charges dont les compositions déterminent les propriétés de la colle etant introduits selon leur nature et leur aspect dans l'un ou l'autre des composants. Le brevet Français 2 461 686 décrit différentes compositions utilisables et fournit toutes les indications permettant de réaliser une colle à base de silicates alcalins résistante à la température, étanche et relativement souple.This type of glue is usually kept as two separate components, mixed just before use. On the one hand, the alkali silicates, on the other hand, the setting reagents, the plasticizers and the various fillers, the compositions of which determine the properties of the adhesive, being introduced according to their nature and their appearance in one or other of the components. . French Patent 2,461,686 describes different compositions that can be used and provides all the information allowing an adhesive based on alkali silicates to be resistant to temperature, waterproof and relatively flexible.

qui
Selon une réalisation préférée la couche de colle 3/relie deux couches de tissu textile a un poids surfacique d'environ 350 g par m2.who
According to a preferred embodiment, the adhesive layer 3 / connects two layers of textile fabric to a surface weight of approximately 350 g per m2.

Le procédé de fabrication de l'invention a pour objectif la fabrication du produit de l'invention. Selon ce procédé chaque surface destinée à etre collée est enduite de colle, puis raclée de manière à répartir la colle uniformément et à en enlever la partie surabondante. Les surfaces destinées à être collées les unes aux autres sont appliquées les unes contre les autres.The objective of the manufacturing process of the invention is to manufacture the product of the invention. According to this process each surface intended to be glued is coated with glue, then scraped so as to distribute the glue evenly and to remove the superabundant part. The surfaces intended to be glued to each other are applied against each other.

L'ensemble est passé entre des rouleaux presseurs.The assembly is passed between pressing rollers.

Le séchage est réalisé à une température comprise entre 10 C et 100 c pendant 24 h.The drying is carried out at a temperature of between 10 ° C. and 100 ° C. for 24 hours.

L'état de surface du tissu de silice et la composition de la colle doivent éviter que la colle ne pénètre à l'intérieur du tissu de silice. Le tissu doit être seulement mouillé en surface par la colle afin de conserver les propriétés mécaniques et en particulier la souplesse du matériau composite.The surface condition of the silica fabric and the composition of the glue must prevent the glue from entering the interior of the silica fabric. The fabric must only be wetted on the surface with the adhesive in order to preserve the mechanical properties and in particular the flexibility of the composite material.

Après enduction, la colle doit être raclée de manière à ce qu'elle soit très uniformément répartie et que la couche de colle finalement produite ne soit pas trop épaisse. La couche homogène et continue ainsi obtenue confère une bonne étanchéité au matériau composite.After coating, the glue must be scraped so that it is very evenly distributed and the layer of glue finally produced is not too thick. The homogeneous and continuous layer thus obtained gives a good seal to the composite material.

Les rouleaux presseurs 4 et 5 assurent la bonne adhésion des surfaces textiles encollées 6 et 7 les unes avec les autres.The pressure rollers 4 and 5 ensure good adhesion of the glued textile surfaces 6 and 7 with each other.

Le dispositif de raccordement de conduites 8 et 9 de transport de fluide selon l'invention est du type comportant une manchette 10 et des moyens de liaison 11 de cette manchette aux conduites. La manchette est fabriquée dans le matériau composite décrit plus haut.The device for connecting pipes 8 and 9 for transporting fluid according to the invention is of the type comprising a sleeve 10 and means 11 for connecting this sleeve to the pipes. The cuff is made of the composite material described above.

Les qualités du matériau de l'invention, résistance à la température, souplesse, résistance mécanique, étanchéité lui permettent de satisfaire les exigences requises des matériaux dont sont réalisées les manchettes 10 utilisées pour le raccordement de conduites de transport de fluide 8, 9. La résistance à la température et la résistance mécanique assurent une bonne tenue de ces dispositifs dans le temps, la souplesse permet å cette manchette 10 de jouer son rôle de compensatrice de la dilatation des conduites 8 et 9 sans que ses autres propriétés ne soient affectées et l'étanchéité est une condition essentielle pour assurer le transport sans perte du fluide.The qualities of the material of the invention, resistance to temperature, flexibility, mechanical strength, sealing allow it to meet the requirements of the materials from which the sleeves 10 are used for the connection of fluid transport pipes 8, 9. The resistance to temperature and mechanical resistance ensure good resistance of these devices over time, the flexibility allows this sleeve 10 to play its role of compensating for the expansion of the pipes 8 and 9 without its other properties being affected and the Tightness is an essential condition for ensuring transport without loss of the fluid.

Le dispositif de raccordement de l'invention est adapté au raccordement de conduites très variées. C'est toutefois dans le cas des conduites transportant de l'air porté à haute température qu'il recevra ses applications les plus nombreuses.The connection device of the invention is suitable for connecting a wide variety of pipes. However, it is in the case of pipes carrying air brought to high temperature that it will receive its most numerous applications.

Selon un mode de réalisation préféré la manchette est réalisée par collage sur elle-même d'une pièce plane de matériau composite. Cette disposition permet d'obtenir dans de bonnes conditions la forme tubulaire de la manchette. La colle utilisée peut avoir la même composition que celle incorporée dans le tissu composite. Toutes les propriétés du matériau sont ainsi conservées par la manchette elle-même.According to a preferred embodiment, the cuff is produced by bonding to itself a flat piece of composite material. This arrangement allows the tubular shape of the cuff to be obtained in good conditions. The glue used can have the same composition as that incorporated in the composite fabric. All the properties of the material are thus preserved by the cuff itself.

Selon un mode de réalisation préféré la manchette est dotée d'un rembourrage extérieur assurant son isolation thermique et/ou phonique.According to a preferred embodiment, the cuff is provided with an external padding ensuring its thermal and / or sound insulation.

Lorsque l'isolation thermique ou l'isolation phonique doivent être réalisées au maximum, la chute de température considérable existant entre l'intérieur et l'extérieur de la manchette permet d'utiliser des matériaux complémentaires, n'ayant pas une résistance particulière a la température. L'isolation phonique et l'isolation thermique complémentaire peuvent ainsi être réalisées dans de bonnes conditions.When thermal insulation or sound insulation must be carried out to the maximum, the considerable drop in temperature existing between the inside and the outside of the cuff makes it possible to use complementary materials, not having a particular resistance to the temperature. The soundproofing and the additional thermal insulation can thus be carried out under good conditions.

Selon un mode de réalisation préféré les moyens de liaison de la manchette aux conduites sont des colliers de serrage.According to a preferred embodiment, the means of connecting the cuff to the pipes are clamps.

Selon un autre mode de réalisation préféré les moyens de liaison de la manchette aux conduites sont des systèmes de bride-contre-bride.According to another preferred embodiment, the means for connecting the cuff to the pipes are flange-against-flange systems.

En effet le matériau composite de l'invention permet de réaliser la liaison entre la manchette et les conduites de nombreuses manières. Ces deux modes de-réalisation sont les plus fréquents.Indeed, the composite material of the invention makes it possible to make the connection between the cuff and the pipes in numerous ways. These two embodiments are the most frequent.

Lors de l'installation de conduites de transport de fluide, il peut être nécessaire d'effectuer des raccordements sans manchette. Le plus souvent, ce sont alors deux brides métalliques qui sont rigidement reliées, l'étanchéité de la canalisation étant assurée par l'interposition d'un joint plat 14 entre ces deux brides. Ce type de raccord doit également résister à la température du fluide transporté et supporter des variations de température importantes. Le joint est ainsi particulièrement sollicité.When installing fluid transport lines, it may be necessary to make connections without a cuff. Most often, these are two metal flanges which are rigidly connected, the sealing of the pipe being ensured by the interposition of a flat seal 14 between these two flanges. This type of fitting must also withstand the temperature of the fluid transported and withstand significant temperature variations. The joint is therefore particularly stressed.

L'expérience a montré que les qualités du matériau composite de l'invention le rendent particulièrement apte à contribuer à la solution de ce problème. L'invention concerne donc également un joint plat 14 destiné par exemple, au raccordement de brides métalliques sur une conduite de transport de fluide, fabriqué dans le matériau composite décrit plus haut. Experience has shown that the qualities of the composite material of the invention make it particularly suitable for contributing to the solution of this problem. The invention therefore also relates to a flat seal 14 intended for example, for the connection of metal flanges on a fluid transport pipe, made of the composite material described above.

Un tel joint plat peut également être utilisé pour assurer l'étanchéité de trappes de visite, regards, portes, trous d'homme etc... Ce type d'utilisation dans lesquelles les joints sont sollicités par des ouvertures et des fermetures relativement fréquentes convient bien au joint plat selon l'invention. Le matériau composite utilisé lui permet en effet de conserver ses propriétés même dans ces conditions difficiles. Such a flat seal can also be used to ensure the sealing of inspection hatches, manholes, manholes, etc. This type of use in which the seals are stressed by relatively frequent openings and closings is suitable. well to the flat seal according to the invention. The composite material used in fact allows it to retain its properties even under these difficult conditions.

Claims (11)

REVENDICATIONS 1) Matériau composite souple, étanche et résistant à la chaleur1) Flexible, waterproof and heat resistant composite material caractérisé en ce qu'il est composé d'au-moins deux couches characterized in that it is composed of at least two layers (1,2) de tissu textile de silice collées l'une à l'autre par (1,2) of silica textile fabric bonded to each other by une colle à base de silicates alcalins (3). an adhesive based on alkaline silicates (3). 2) Matériau selon la revendication 1 caractérisé en ce que le2) Material according to claim 1 characterized in that the tissage du tissu de silice utilisé est régulier, serré, sans weaving of the silica fabric used is regular, tight, without défaut. default. 3) Matériau selon l'une des revendications 1 ou 2 caractérisé en3) Material according to one of claims 1 or 2 characterized in ce que la colle (3) incorpore un adjuvant plastifiant et un that the glue (3) incorporates a plasticizing adjuvant and a réactif de prise. setting reagent. 4) Matériau selon les revendications 1 à 3 caractérisé en ce que4) Material according to claims 1 to 3 characterized in that chaque couche de colle reliant deux couches de tissu textile a each layer of glue connecting two layers of textile fabric has un poids surfacique d'environ 350 g par m2. an area weight of approximately 350 g per m2. 5) Procédé de fabrication du matériau selon l'une des5) Method of manufacturing the material according to one of revendications 1 à 4 caractérisé en ce que chaque surface claims 1 to 4 characterized in that each surface destinée à être collée est enduite de colle puis raclée de intended to be glued is coated with glue and then scraped with manière à répartir la colle uniformément et à en enlever la so as to distribute the glue evenly and to remove the partie surabondante, les surfaces destinées à étre collées les superabundant part, the surfaces intended to be glued the unes aux les autres sont appliquées les unes contre les to each other are applied against each other autres, l'ensemble est passé entre des rouleaux presseurs, le others, the assembly is passed between pressure rollers, the séchage est réalisé à une température comprise entre 10 C et drying is carried out at a temperature between 10 C and 100 C pendant 24 h environ. 100 C for approximately 24 h. 6) Dispositif de raccordement de conduites de transport de fluide6) Device for connecting fluid transport pipes du type comportant une manchette (10) et des moyens (11) de of the type comprising a cuff (10) and means (11) for liaisons de cette manchette aux conduites (8,9) caractérisé en connections of this sleeve to the pipes (8, 9) characterized in ce que la manchette (10) est fabriquée dans le matériau de  that the cuff (10) is made of the material l'une des revendications 1 à 4. one of claims 1 to 4. 7) Dispositif selon la revendication 6 caractérisé en ce que la7) Device according to claim 6 characterized in that the manchette (10) est réalisée par collage sur elle-même d'une cuff (10) is made by bonding on itself a pièce plane de matériau composite. flat piece of composite material. 8) Dispositif selon l'une des revendications 6 ou 7 caractérisé 8) Device according to one of claims 6 or 7 characterized en ce que la manchette est dotée d'un rembourrage extérieur in that the cuff has an external padding assurant son isolation thermique etlou phonique. ensuring its thermal and / or sound insulation. 9) Dispositif selon l'une des revendications 6 à 8 caractérisé en9) Device according to one of claims 6 to 8 characterized in ce que les moyens (11) de liaison de la manchette aux what the means (11) connecting the cuff to conduites sont des colliers de serrage. pipes are hose clamps. 10) Dispositif selon l'une des revendications 6 à 9 caractérisé10) Device according to one of claims 6 to 9 characterized en ce que les moyens de liaison (11) de la manchette aux in that the connecting means (11) of the cuff to conduites sont des systèmes de bride-contre-bride. lines are flange-to-flange systems. 11) Joint plat (14), destiné par exemple, au raccordement de11) Flat seal (14), for example, for connection of brides métalliques (12, 13) sur une conduite de transport de metal flanges (12, 13) on a transport line fluide, caractérisé en ce qu'il est fabriqué dans le matériau fluid, characterized in that it is made of the material de l'une des revendications 1 à 4.  of one of claims 1 to 4.
FR8704748A 1987-04-03 1987-04-03 FLEXIBLE, WATERPROOF AND HEAT RESISTANT COMPOSITE MATERIAL, MANUFACTURING METHOD THEREOF, DEVICE FOR CONNECTING FLUID CONDUITS AND FLAT JOINT Expired - Fee Related FR2613280B1 (en)

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Application Number Priority Date Filing Date Title
FR8704748A FR2613280B1 (en) 1987-04-03 1987-04-03 FLEXIBLE, WATERPROOF AND HEAT RESISTANT COMPOSITE MATERIAL, MANUFACTURING METHOD THEREOF, DEVICE FOR CONNECTING FLUID CONDUITS AND FLAT JOINT

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FR8704748A FR2613280B1 (en) 1987-04-03 1987-04-03 FLEXIBLE, WATERPROOF AND HEAT RESISTANT COMPOSITE MATERIAL, MANUFACTURING METHOD THEREOF, DEVICE FOR CONNECTING FLUID CONDUITS AND FLAT JOINT

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777336A1 (en) * 1998-04-09 1999-10-15 Dunlop Sa Protective boot for moving shaft passing through a fire-resistant partition e.g. in aircraft

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Publication number Priority date Publication date Assignee Title
GB1310355A (en) * 1969-07-03 1973-03-21 Foseco Trading Ag Fibre containing compositions
US3870595A (en) * 1969-10-06 1975-03-11 Foseco Int Protection of turbine casings
JPS5197609A (en) * 1975-02-24 1976-08-27 TAIKOON MUKISENISEKISOTAI

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1310355A (en) * 1969-07-03 1973-03-21 Foseco Trading Ag Fibre containing compositions
US3870595A (en) * 1969-10-06 1975-03-11 Foseco Int Protection of turbine casings
JPS5197609A (en) * 1975-02-24 1976-08-27 TAIKOON MUKISENISEKISOTAI

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WORLD PATENTS INDEX Accession No. 76-76781x Week 41 Derwent Publications Ltd, London GB & JP-A-51097609 (JUJO PAPER MFG KK) 28-08-76 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777336A1 (en) * 1998-04-09 1999-10-15 Dunlop Sa Protective boot for moving shaft passing through a fire-resistant partition e.g. in aircraft

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