EP0472468A1 - Substrate lining process and device and lining obtained therewith - Google Patents

Substrate lining process and device and lining obtained therewith Download PDF

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Publication number
EP0472468A1
EP0472468A1 EP91402278A EP91402278A EP0472468A1 EP 0472468 A1 EP0472468 A1 EP 0472468A1 EP 91402278 A EP91402278 A EP 91402278A EP 91402278 A EP91402278 A EP 91402278A EP 0472468 A1 EP0472468 A1 EP 0472468A1
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EP
European Patent Office
Prior art keywords
substrate
coating
fixed
hooks
reinforcement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
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EP91402278A
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German (de)
French (fr)
Inventor
Jean-Charles Daussan
Gérard Daussan
André Daussan
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Daussan SAS
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Daussan SAS
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Publication of EP0472468A1 publication Critical patent/EP0472468A1/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/14—Supports for linings
    • F27D1/141—Anchors therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining

Definitions

  • the present invention relates to a method for applying a coating to a substrate, such as sheets or steel walls.
  • the invention also relates to a device used in the implementation of this method. Finally, it relates to a reinforced coating obtained from this process.
  • This reinforcement usually consists of a wire mesh which consolidates the coating and thus prevents it from leaving the substrate.
  • the reinforcement is located approximately half the thickness of the coating to consolidate it most effectively.
  • the object of the present invention is to provide a method for applying a coating to a substrate which overcomes the above drawbacks to obtain a robust coating which is fixed securely to the substrate.
  • this method is characterized in that the attachment devices comprise hooks formed by a rod, for example metallic, curved substantially in the shape of a U and in that these hooks are fixed to the substrate by one branches of the U, for example by welding or gluing or screwing.
  • the hanging devices are preferably uniformly distributed thereon, but if the substrate has fold lines or strong curvatures, the density of the hanging devices may be higher in the vicinity of these. parts.
  • the attachment devices are substantially flat hooks which are fixed on the substrate with variable orientations and / or inclinations (for example upright or lying).
  • the hooks are fixed to the substrate at a point on a branch of their substantially U-shaped shape chosen as a function of the desired spacing between the substrate and the frame. Thanks to this arrangement of hooks, it is possible to control the spacing between the substrate and the frame and therefore use identical hooks to deposit coatings reinforced with different thicknesses.
  • the reinforcement has a corrugated arrangement which keeps it firmly on the substrate and also provides maximum reinforcement for coatings of significant thickness.
  • Another aspect of the invention relates to a device which can be fixed on a substrate to maintain an armature therein in accordance with the above method.
  • this device comprises a hook formed by a curved rod substantially in the form of a U, one of the branches of which has a curvature opposite to the curvature of the base of the substantially U-shaped.
  • the invention also relates to a coating applied to a substrate in accordance with the above method.
  • This coating thus comprises an armature embedded in the coating, the armature being inserted in attachment devices fixed to the substrate in preferably variable positions relative to the substrate.
  • a coating 10 on a substrate 1 for example a steel wall
  • the coating 10 in question having to be reinforced, that is to say reinforced by a reinforcement 2 in the form of a wire mesh or the like.
  • a reinforcement 2 in the form of a wire mesh or the like.
  • Several types of coating thus fall within the scope of the invention, for example fire-resistant, anti-humidity, thermal insulating, ornamental or other coatings.
  • a fire-resistant coating 10 applied to a metallic substrate 1 forming part of a construction work we choose the particular example of a fire-resistant coating 10 applied to a metallic substrate 1 forming part of a construction work.
  • the substance constituting an example of such a fire-resistant coating is described in patent FR-A-2,458,519 to the applicant. This substance is designed to offer a certain resistance to heating, especially in the event of fire.
  • FIG. 1 a metal substrate 1 is shown on which the framework 2 has been placed in the form of a wire mesh before the application of the coating 10.
  • Strands of the frame 2 are inserted, if necessary after deformation, in hooks 3 fixed on the substrate 1 to hold the frame 2 on the substrate 1.
  • These hooks 3 have an identical determined structure and each constitute individual attachment means. They are fixed spaced apart on the substrate 1 in different positions relative to the substrate 1.
  • the structure of the hooks 3 used is illustrated in FIG. 3.
  • the hook 3 comprises a curved metal rod in the shape of a U with a rounded base, the two branches 5 and 4 of which have a curvature of the same direction and of opposite direction to the curvature of the base of the U.
  • the hooks 3 can also be coated in a plastic sheathing, in particular if they are intended to be in contact with a very acidic coating. These hooks can also be made of rigid synthetic material, or even of ceramic. In these two cases, their attachment to the substrate is advantageously carried out by gluing or screwing in preformed tapped holes.
  • FIGS. 1 and 2 It can be seen in FIGS. 1 and 2 that the supposed metal hooks 3 are welded to the substrate 1 at a point on the branch 5 of their U shape having a curvature in the same direction as the base of the U.
  • the position of this fixing point along the branch 5 is chosen as a function of the desired spacing between the substrate 1 and the frame 2 inserted in the hook 3.
  • certain hooks 3 can be welded by a welding point 6 situated in the vicinity of the end of the branch 5, which gives rise to a relatively large spacing e between the substrate 1 and the armature 2 inserted , favorable to the application of a thick coating 10 while other hooks 3 can be welded at a point closer to the base of the U (FIG. 5), resulting in a smaller spacing e ′ between the substrate 1 and the reinforcement 2 inserted, preferred for the application of a thinner coating 10.
  • hooks 3 can advantageously be used to apply coatings of different thicknesses, typically from 5 mm to several centimeters.
  • the dimensions of the hooks 3 can be chosen as a function of the desired spacing between the substrate 1 and the frame 2.
  • FIG. 1 it can also be seen that certain hooks 3 have different orientations when they are fixed to the substrate 1. More precisely, the plane defined by the substantially U-shaped structure of the hooks 3 has a variable orientation relative to the defined plane by the substrate 1.
  • the variable orientation can be a variable tilt or a variable azimuth. This random orientation of the hooks 3 prevents any skidding of the frame 2 parallel to the substrate 1 during the application of the coating.
  • the frame 2 may come off the hooks 3 by passing under their free branches 4. This is prevented by the arrangement of the hooks 3 with variable orientation, preferably random.
  • the coating 10 is applied to the substrate 1 carrying the frame 2 held by the hook devices 3.
  • FIG. 2 there is symbolically shown a pipe 8 for distributing under pressure the material forming the coating 10.
  • the method of applying the material constituting the fire-resistant coating 10 is described in detail in patent FR-A-2 458 519 to the plaintiff, cited here for reference. It can be seen, in FIG. 2, that the coating 10 formed can have different thicknesses depending on the distance e, e ′ between the substrate 1 and the frame 2 thanks to the variable positions that the hooks 3 can take.
  • the frame 2 is placed about half the thickness of the covering 10.
  • the hooks 3 are arranged alternately on the substrate 1 so as to produce an undulation of the frame 2.
  • This undulation strengthens the retention of the frame on the substrate and is suitable for consolidating a thick coating, which is generally not possible with conventional reinforced coating techniques.
  • the alternate arrangement of the hooks is not the only one allowing this variable spacing between the substrate 1 and the frame 2, the main thing being to mount certain hooks 3 so as to achieve a relatively small spacing e ′ (FIG. 5) and others so as to achieve a relatively large spacing e (FIG. 4).
  • the frame 2 can be inserted into the hooks 3 before or after their attachment to the substrate 1 according to the preferences of the technician.
  • a frame 2 in the form of a wire mesh is only a non-limiting example of a frame usable in the context of the invention. It is naturally possible to use any known frame allowing insertion into the attachment devices, for example an openwork sheet or the like, or even a frame made of synthetic material.

Abstract

In the process a reinforcement (2) is buried in a coating (10) to be applied onto the substrate (1). For this purpose a number of hooks (3) are attached to the substrate (1) preferably with variable orientations and/or inclinations in relation to the substrate (1); the reinforcement (2) is inserted into the hooks (3) and the coating (10) is applied onto the substrate (1) carrying the reinforcement (2). <??>The hook (3) employed as anchoring device consists of a curved stem substantially in the shape of a U one of whose arms (4) has a curvature inverse of the curvature of the U-shaped base. <??>The reinforced coating thus formed can be especially a fire-resistant coating applied onto a metal substrate. <IMAGE>

Description

La présente invention concerne un procédé pour appliquer un revêtement sur un substrat, tel que tôles ou paroi en acier. L'invention concerne également un dispositif utilisé dans la mise en oeuvre de ce procédé. Elle concerne enfin un revêtement renforcé obtenu à partir de ce procédé.The present invention relates to a method for applying a coating to a substrate, such as sheets or steel walls. The invention also relates to a device used in the implementation of this method. Finally, it relates to a reinforced coating obtained from this process.

Pour améliorer l'accrochage d'un revêtement relativement épais, tel qu'un revêtement pare-feu, sur un substrat, il est usuel de noyer une armature, dans ce revêtement. Cette armature consiste habituellement en un treillis métallique qui consolide le revêtement et l'empêche ainsi de quitter le substrat.To improve the attachment of a relatively thick coating, such as a fire-resistant coating, on a substrate, it is usual to drown a reinforcement in this coating. This reinforcement usually consists of a wire mesh which consolidates the coating and thus prevents it from leaving the substrate.

Lors de l'application du revêtement sur le substrat se pose le problème technique du maintien de l'armature sur le substrat. Celle-ci peut en effet se déplacer, notamment si le revêtement est diffusé par un jet sous pression. En outre, il est délicat de maîtriser l'écartement entre le substrat et l'armature, car l'armature a tendance à se plaquer contre le substrat ce qui défavorise l'adhérence du revêtement et fait perdre à l'armature sa fonction de consolidation. On préfère généralement que l'armature se situe environ à la moitié de l'épaisseur du revêtement pour le consolider le plus efficacement.When applying the coating to the substrate, there is the technical problem of maintaining the reinforcement on the substrate. This can indeed move, especially if the coating is diffused by a pressurized jet. In addition, it is difficult to control the spacing between the substrate and the reinforcement, because the reinforcement tends to press against the substrate which disadvantages the adhesion of the coating and causes the reinforcement to lose its function of consolidation. . It is generally preferred that the reinforcement is located approximately half the thickness of the coating to consolidate it most effectively.

Le but de la présente invention est de fournir un procédé pour appliquer un revêtement sur un substrat qui écarte les inconvénients ci-dessus pour obtenir un revêtement robuste et fixé solidement sur le substrat.The object of the present invention is to provide a method for applying a coating to a substrate which overcomes the above drawbacks to obtain a robust coating which is fixed securely to the substrate.

Dans ce procédé, on noie une armature dans le revêtement par les étapes suivantes :

  • on fixe plusieurs dispositifs d'accrochage sur le substrat ;
  • on insère l'armature dans les dispositifs d'accrochage ; et
  • on applique le revêtement sur le substrat portant l'armature.
In this process, a reinforcement is drowned in the coating by the following steps:
  • several attachment devices are fixed to the substrate;
  • the reinforcement is inserted into the hanging devices; and
  • the coating is applied to the substrate carrying the frame.

Suivant l'invention, ce procédé est caractérisé en ce que les dispositifs d'accrochage comprennent des crochets formés par une tige, par exemple métallique, recourbée sensiblement en forme de U et en ce que ces crochets sont fixés sur le substrat par l'une des branches de l'U, par exemple par soudage ou collage ou vissage.According to the invention, this method is characterized in that the attachment devices comprise hooks formed by a rod, for example metallic, curved substantially in the shape of a U and in that these hooks are fixed to the substrate by one branches of the U, for example by welding or gluing or screwing.

Si le substrat est plat, les dispositifs d'accrochage sont de préférence uniformément répartis sur celui-ci, mais si le substrat présente des lignes de pliage ou de fortes courbures, la densité des dispositifs d'accrochage peut être plus forte au voisinage de ces parties.If the substrate is flat, the hanging devices are preferably uniformly distributed thereon, but if the substrate has fold lines or strong curvatures, the density of the hanging devices may be higher in the vicinity of these. parts.

Selon la forme et la disposition des crochets sur le substrat, on peut réaliser un arrimage très solide de l'armature par rapport au substrat tout en maintenant une certaine distance, éventuellement variable, entre ces deux composants.Depending on the shape and arrangement of the hooks on the substrate, one can achieve a very solid stowage of the frame relative to the substrate while maintaining a certain distance, possibly variable, between these two components.

Suivant une version avantageuse du procédé selon l'invention, les dispositifs d'accrochage sont des crochets sensiblement plats qui sont fixés sur le substrat avec des orientations et/ou des inclinaisons variables (par exemple dressés ou couchés).According to an advantageous version of the method according to the invention, the attachment devices are substantially flat hooks which are fixed on the substrate with variable orientations and / or inclinations (for example upright or lying).

Le fait de disposer les dispositifs d'accrochage ou crochets avec des orientations et/ou des inclinaisons différentes par rapport au substrat empêche tout glissement de l'armature parallèlement au substrat. Ceci évite tout déplacement indésirable de l'armature lors de l'application du revêtement. L'armature peut ainsi être posée sur le substrat sans qu'il soit nécessaire d'appliquer une première couche de revêtement, puis de poser l'armature, et enfin d'appliquer une seconde couche de revêtement. Le dépôt du revêtement armé est donc simplifié et sa consolidation améliorée.Having the hooking devices or hooks with different orientations and / or inclinations relative to the substrate prevents any sliding of the armature parallel to the substrate. This prevents unwanted displacement of the reinforcement during application of the coating. The reinforcement can thus be placed on the substrate without the need to apply a first coating layer, then to lay the reinforcement, and finally to apply a second coating layer. The deposition of the reinforced coating is therefore simplified and its consolidation improved.

Suivant un mode de réalisation préféré de l'invention, on fixe les crochets sur le substrat en un point d'une branche de leur forme sensiblement en U choisi en fonction de l'écartement désiré entre le substrat et l'armature. Grâce à cette disposition des crochets, on peut maîtriser l'écartement entre le substrat et l'armature et donc utiliser des crochets identiques pour déposer des revêtements armés d'épaisseurs différentes.According to a preferred embodiment of the invention, the hooks are fixed to the substrate at a point on a branch of their substantially U-shaped shape chosen as a function of the desired spacing between the substrate and the frame. Thanks to this arrangement of hooks, it is possible to control the spacing between the substrate and the frame and therefore use identical hooks to deposit coatings reinforced with different thicknesses.

On peut en outre, d'après une version préférée de l'invention, fixer les crochets de façon à réaliser un écartement variable entre le substrat et l'armature. De cette façon, l'armature a une disposition ondulée qui la maintient solidement sur le substrat et apporte en outre le renforcement maximum pour des revêtements d'épaisseur importante.It is also possible, according to a preferred version of the invention, to fix the hooks so as to produce a variable spacing between the substrate and the frame. In this way, the reinforcement has a corrugated arrangement which keeps it firmly on the substrate and also provides maximum reinforcement for coatings of significant thickness.

Un autre aspect de l'invention vise un dispositif pouvant être fixé sur un substrat pour y maintenir une armature conformément au procédé ci-dessus.Another aspect of the invention relates to a device which can be fixed on a substrate to maintain an armature therein in accordance with the above method.

Suivant l'invention, ce dispositif comprend un crochet formé par une tige recourbée sensiblement en forme de U dont l'une des branches présente une courbure inverse de la courbure de la base de la forme sensiblement en U.According to the invention, this device comprises a hook formed by a curved rod substantially in the form of a U, one of the branches of which has a curvature opposite to the curvature of the base of the substantially U-shaped.

L'invention vise également un revêtement appliqué sur un substrat conformément au procédé ci-dessus. Ce revêtement comprend ainsi une armature noyée dans le revêtement, l'armature étant insérée dans des dispositifs d'accrochage fixés sur le substrat dans des positions de préférence variables par rapport au substrat.The invention also relates to a coating applied to a substrate in accordance with the above method. This coating thus comprises an armature embedded in the coating, the armature being inserted in attachment devices fixed to the substrate in preferably variable positions relative to the substrate.

D'autres particularités et avantages de l'invention apparaîtront dans la description ci-dessous. Aux dessins annexés, donnés à titre d'exemples non limitatifs :

  • la figure 1 est une vue en perspective d'un substrat comportant une armature de renforcement posée selon le procédé de l'invention;
  • la figure 2 est une vue en élévation du substrat de la figure 1 après application du revêtement;
  • la figure 3 représente une vue de côté d'un crochet conforme à l'invention;
  • les figures 4 et 5 représentent plus en détail deux crochets fixés conformément au procédé de l'invention; et
  • la figure 6 illustre schématiquement une version du procédé selon l'invention.
Other features and advantages of the invention will appear in the description below. In the appended drawings, given by way of nonlimiting examples:
  • Figure 1 is a perspective view of a substrate comprising a reinforcing reinforcement laid according to the method of the invention;
  • Figure 2 is an elevational view of the substrate of Figure 1 after application of the coating;
  • Figure 3 shows a side view of a hook according to the invention;
  • Figures 4 and 5 show in more detail two hooks fixed according to the method of the invention; and
  • FIG. 6 schematically illustrates a version of the method according to the invention.

Dans le contexte de l'invention, on se propose d'appliquer un revêtement 10 sur un substrat 1, par exemple une paroi en acier, le revêtement 10 en question devant être armé, c'est-à-dire renforcé par une armature 2 en forme de treillis métallique ou analogue. Plusieurs types de revêtement entrent ainsi dans le cadre de l'invention, par exemple des revêtements pare-feu, anti-humidité, isolant thermique, ornemental ou autre. Dans la description non limitative ci-dessous, on choisit l'exemple particulier d'un revêtement pare-feu 10 appliqué sur un substrat 1 métallique faisant partie d'un ouvrage de construction. La substance constituant un exemple d'un tel revêtement pare-feu est décrite dans le brevet FR-A-2 458 519 de la demanderesse. Cette substance est conçue pour offrir une certaine résistance à l'échauffement, notamment en cas d'incendie.In the context of the invention, it is proposed to apply a coating 10 on a substrate 1, for example a steel wall, the coating 10 in question having to be reinforced, that is to say reinforced by a reinforcement 2 in the form of a wire mesh or the like. Several types of coating thus fall within the scope of the invention, for example fire-resistant, anti-humidity, thermal insulating, ornamental or other coatings. In the nonlimiting description below, we choose the particular example of a fire-resistant coating 10 applied to a metallic substrate 1 forming part of a construction work. The substance constituting an example of such a fire-resistant coating is described in patent FR-A-2,458,519 to the applicant. This substance is designed to offer a certain resistance to heating, especially in the event of fire.

A la figure 1, est représenté un substrat métallique 1 sur lequel on a posé l'armature 2 en forme de treillis métallique préalablement à l'application du revêtement 10.In FIG. 1, a metal substrate 1 is shown on which the framework 2 has been placed in the form of a wire mesh before the application of the coating 10.

Des brins de l'armature 2 sont insérés, au besoin après déformation, dans des crochets 3 fixés sur le substrat 1 pour maintenir l'armature 2 sur le substrat 1. Ces crochets 3 ont une structure déterminée identique et constituent chacun des moyens d'accrochage individuels. Ils sont fixés de façon espacée sur le substrat 1 dans des positions différentes par rapport au substrat 1.Strands of the frame 2 are inserted, if necessary after deformation, in hooks 3 fixed on the substrate 1 to hold the frame 2 on the substrate 1. These hooks 3 have an identical determined structure and each constitute individual attachment means. They are fixed spaced apart on the substrate 1 in different positions relative to the substrate 1.

La structure des crochets 3 utilisés est illustrée à la figure 3. Le crochet 3 comporte une tige métallique recourbée en forme de U à base arrondie dont les deux branches 5 et 4 présentent une courbure respectivement de sens identique et de sens contraire à la courbure de la base de l'U.The structure of the hooks 3 used is illustrated in FIG. 3. The hook 3 comprises a curved metal rod in the shape of a U with a rounded base, the two branches 5 and 4 of which have a curvature of the same direction and of opposite direction to the curvature of the base of the U.

Les crochets 3 peuvent aussi être enrobés dans un gainage en matière plastique notamment s'ils sont destinés à être en contact avec un revêtement très acide. Ces crochets peuvent aussi être réalisés en matière synthétique rigide, ou encore en céramique. Dans ces deux cas, leur fixation sur le substrat est avantageusement réalisée par collage ou vissage dans des trous taraudés préformés.The hooks 3 can also be coated in a plastic sheathing, in particular if they are intended to be in contact with a very acidic coating. These hooks can also be made of rigid synthetic material, or even of ceramic. In these two cases, their attachment to the substrate is advantageously carried out by gluing or screwing in preformed tapped holes.

On voit sur les figures 1 et 2 que les crochets supposés métalliques 3 sont soudés sur le substrat 1 en un point de la branche 5 de leur forme en U présentant une courbure dans le même sens que la base de l'U. La position de ce point de fixation le long de la branche 5 est choisie en fonction de l'écartement désiré entre le substrat 1 et l'armature 2 insérée dans le crochet 3. Ainsi, comme illustré à la figure 2 et à plus grande échelle aux figures 4 et 5, certains crochets 3 peuvent être soudés par un point de soudure 6 situé au voisinage de l'extrémité de la branche 5, ce qui donne lieu à un écartement e relativement important entre le substrat 1 et l'armature 2 insérée, favorable à l'application d'un revêtement 10 épais tandis que d'autres crochets 3 peuvent être soudés en un point plus proche de la base de l'U (figure 5), entraînant un écartement e′ plus faible entre le substrat 1 et l'armature 2 insérée, préféré pour l'application d'un revêtement 10 moins épais.It can be seen in FIGS. 1 and 2 that the supposed metal hooks 3 are welded to the substrate 1 at a point on the branch 5 of their U shape having a curvature in the same direction as the base of the U. The position of this fixing point along the branch 5 is chosen as a function of the desired spacing between the substrate 1 and the frame 2 inserted in the hook 3. Thus, as illustrated in FIG. 2 and on a larger scale in FIGS. 4 and 5, certain hooks 3 can be welded by a welding point 6 situated in the vicinity of the end of the branch 5, which gives rise to a relatively large spacing e between the substrate 1 and the armature 2 inserted , favorable to the application of a thick coating 10 while other hooks 3 can be welded at a point closer to the base of the U (FIG. 5), resulting in a smaller spacing e ′ between the substrate 1 and the reinforcement 2 inserted, preferred for the application of a thinner coating 10.

C'est ainsi que des crochets 3 identiques peuvent avantageusement être utilisés pour appliquer des revêtements d'épaisseurs différentes, typiquement de 5 mm à plusieurs centimètres. Bien entendu, les dimensions des crochets 3 peuvent être choisies en fonction de l'écartement désiré entre le substrat 1 et l'armature 2.This is how identical hooks 3 can advantageously be used to apply coatings of different thicknesses, typically from 5 mm to several centimeters. Of course, the dimensions of the hooks 3 can be chosen as a function of the desired spacing between the substrate 1 and the frame 2.

A la figure 1, on voit également que certains crochets 3 présentent des orientations différentes lorsqu'ils sont fixés sur le substrat 1. Plus précisément, le plan défini par la structure sensiblement en U des crochets 3 a une orientation variable par rapport au plan défini par le substrat 1. L'orientation variable peut être une inclinaison variable ou un azimut variable. Cette orientation aléatoire des crochets 3 évite tout dérapage de l'armature 2 parallèlement au substrat 1 au cours de l'application du revêtement. Lorsque les crochets 3 sont orientés de la même façon, l'armature 2 risque de se dégager des crochets 3 en passant sous leurs branches libres 4. Ceci est empêché par la disposition des crochets 3 avec orientation variable, de préférence aléatoire.In FIG. 1, it can also be seen that certain hooks 3 have different orientations when they are fixed to the substrate 1. More precisely, the plane defined by the substantially U-shaped structure of the hooks 3 has a variable orientation relative to the defined plane by the substrate 1. The variable orientation can be a variable tilt or a variable azimuth. This random orientation of the hooks 3 prevents any skidding of the frame 2 parallel to the substrate 1 during the application of the coating. When the hooks 3 are oriented in the same way, the frame 2 may come off the hooks 3 by passing under their free branches 4. This is prevented by the arrangement of the hooks 3 with variable orientation, preferably random.

Dans une autre étape du procédé selon l'invention, on applique le revêtement 10 sur le substrat 1 portant l'armature 2 maintenue par les dispositifs à crochet 3.In another step of the method according to the invention, the coating 10 is applied to the substrate 1 carrying the frame 2 held by the hook devices 3.

A la figure 2, on a représenté symboliquement un tuyau 8 servant à répartir sous pression le matériau formant le revêtement 10. Le procédé d'application du matériau constituant le revêtement pare-feu 10 est décrit en détail dans le brevet FR-A-2 458 519 de la demanderesse, cité ici à des fins de référence. On voit, à la figure 2, que le revêtement 10 formé peut avoir différentes épaisseurs selon l'écartement e, e′ entre le substrat 1 et l'armature 2 grâce aux positions variables que peuvent prendre les crochets 3. De préférence, l'armature 2 est placée environ à la moitié de l'épaisseur du revêtement 10.In Figure 2, there is symbolically shown a pipe 8 for distributing under pressure the material forming the coating 10. The method of applying the material constituting the fire-resistant coating 10 is described in detail in patent FR-A-2 458 519 to the plaintiff, cited here for reference. It can be seen, in FIG. 2, that the coating 10 formed can have different thicknesses depending on the distance e, e ′ between the substrate 1 and the frame 2 thanks to the variable positions that the hooks 3 can take. Preferably, the frame 2 is placed about half the thickness of the covering 10.

Dans la forme d'exécution de l'invention illustrée à la figure 6, les crochets 3 sont disposés de façon alternée sur le substrat 1 de façon à réaliser une ondulation de l'armature 2. Cette ondulation renforce le maintien de l'armature sur le substrat et est adaptée pour la consolidation d'un revêtement 10 épais, qui n'est pas possible en général avec les techniques classiques de revêtement armé. Bien entendu la disposition alternée des crochets n'est pas la seule permettant cet écartement variable entre le substrat 1 et l'armature 2, l'essentiel étant de monter certains crochets 3 de façon à réaliser un écartement e′ relativement faible (figure 5) et d'autres de façon à réaliser un écartement e relativement important (figure 4).In the embodiment of the invention illustrated in FIG. 6, the hooks 3 are arranged alternately on the substrate 1 so as to produce an undulation of the frame 2. This undulation strengthens the retention of the frame on the substrate and is suitable for consolidating a thick coating, which is generally not possible with conventional reinforced coating techniques. Of course, the alternate arrangement of the hooks is not the only one allowing this variable spacing between the substrate 1 and the frame 2, the main thing being to mount certain hooks 3 so as to achieve a relatively small spacing e ′ (FIG. 5) and others so as to achieve a relatively large spacing e (FIG. 4).

Il est bien entendu que, dans le cadre de l'invention, l'armature 2 peut être insérée dans les crochets 3 avant ou après leur fixation sur le substrat 1 selon les préférences du technicien. De même une armature 2 en forme de treillis métallique n'est qu'un exemple non limitatif d'armature utilisable dans le cadre de l'invention. On peut naturellement utiliser toute armature connue permettant l'insertion dans les dispositifs d'accrochage, par exemple une tôle ajourée ou analogue, ou encore une armature en matière synthétique.It is understood that, in the context of the invention, the frame 2 can be inserted into the hooks 3 before or after their attachment to the substrate 1 according to the preferences of the technician. Similarly, a frame 2 in the form of a wire mesh is only a non-limiting example of a frame usable in the context of the invention. It is naturally possible to use any known frame allowing insertion into the attachment devices, for example an openwork sheet or the like, or even a frame made of synthetic material.

D'autres variantes encore peuvent être imaginées sans difficulté par l'homme du métier sans sortir du champ d'application de l'invention.Still other variants can be imagined without difficulty by those skilled in the art without departing from the scope of the invention.

Claims (12)

Procédé pour appliquer un revêtement (10) sur un substrat (1), dans lequel on noie une armature (2) dans le revêtement (10), comprenant les étapes suivantes: - on fixe plusieurs dispositifs d'accrochage (3) sur le substrat (1) ; - on insère l'armature (2) dans les dispositifs d'accrochage (3) ; et - on applique le revêtement (10) sur le substrat (1) portant l'armature (2),
caractérisé en ce que les dispositifs d'accrochage (3) comprennent des crochets (3) formés chacun par une tige recourbée sensiblement en forme de U et en ce que ces crochets (3) sont fixés sur le substrat par l'une des branches (5) du U. Method for applying a coating (10) to a substrate (1), in which a reinforcement (2) is embedded in the coating (10), comprising the following steps: - Several fastening devices (3) are fixed on the substrate (1); - the armature (2) is inserted into the attachment devices (3); and - the coating (10) is applied to the substrate (1) carrying the frame (2),
characterized in that the hooking devices (3) comprise hooks (3) each formed by a curved rod which is substantially U-shaped and in that these hooks (3) are fixed to the substrate by one of the branches ( 5) from the U. Procédé conforme à la revendication 1, caractérisé en ce que les dispositifs d'accrochage (3) sont fixés sur le substrat (1) avec des orientations et/ou des inclinaisons variables par rapport à ce substrat (1).Method according to claim 1, characterized in that the hooking devices (3) are fixed to the substrate (1) with variable orientations and / or inclinations relative to this substrate (1). Procédé conforme à l'une des revendications 1 ou 2, caractérisé en ce que le substrat (1) et les dispositifs d'accrochage (3) sont en métal, et en ce que les dispositifs d'accrochage (3) sont fixés sur le substrat (1) par soudage ou vissage.Method according to one of claims 1 or 2, characterized in that the substrate (1) and the hanging devices (3) are made of metal, and in that the hanging devices (3) are fixed on the substrate (1) by welding or screwing. Procédé conforme à l'une des revendications 1 ou 2, caractérisé en ce que les dispositifs d'accrochage (3) sont en matière plastique ou en matière céramique et sont fixés au substrat (1) par vissage ou collage.Method according to one of claims 1 or 2, characterized in that the attachment devices (3) are made of plastic or ceramic material and are fixed to the substrate (1) by screwing or gluing. Procédé conforme à l'une des revendications 1 à 4, caractérisé en ce qu'on fixe les crochets (3) sur le substrat (1) en un point d'une branche (5) de leur forme sensiblement en U choisi en fonction de l'écartement (e, e′) désiré entre le substrat (1) et l'armature (2).Method according to one of claims 1 to 4, characterized in that the hooks (3) are fixed to the substrate (1) at a point on a branch (5) of their substantially U-shape chosen according to the desired spacing (e, e ′) between the substrate (1) and the frame (2). Procédé conforme à la revendication 5, caractérisé en ce que les crochets (3) sont fixés de façon à réaliser un écartement (e, e′) variable entre le substrat (1) et l'armature (2).Method according to claim 5, characterized in that the hooks (3) are fixed so as to produce a variable spacing (e, e ′) between the substrate (1) and the frame (2). Dispositif (3) pouvant être fixé sur un substrat (1) pour y maintenir une armature, caractérisé en ce que ce dispositif (3) comprend un crochet (3) formé par une tige recourbée sensiblement en forme de U dont l'une des branches présente une courbure inverse de la courbure de la base de la forme sensiblement en U.Device (3) which can be fixed on a substrate (1) to hold a reinforcement there, characterized in that this device (3) comprises a hook (3) formed by a curved rod substantially in the shape of a U, one of the branches of which has a curvature opposite to the curvature of the base of the substantially U-shape. Dispositif conforme à la revendication 7, caractérisé en ce que l'autre branche (5) de la forme sensiblement en U du crochet (3) présente une courbure de même sens que la courbure de la base de la forme sensiblement en U.Device according to claim 7, characterized in that the other branch (5) of the substantially U-shaped shape of the hook (3) has a curvature in the same direction as the curvature of the base of the substantially U-shaped shape. Dispositif conforme à l'une des revendications 7 ou 8, caractérisé en ce que le crochet (3) est en métal éventuellement gaîné de matière plastique et en ce qu'il est soudé ou collé dans le substrat ou vissé dans des trous taraudés de celui-ci.Device according to either of Claims 7 or 8, characterized in that the hook (3) is made of metal, possibly sheathed with plastic, and in that it is welded or glued into the substrate or screwed into threaded holes in that -this. Dispositif conforme à l'une des revendications 7 ou 8, caractérisé en ce que le crochet est en matière synthétique rigide ou en céramique et qu'il est collé au substrat ou vissé dans celui-ci.Device according to either of Claims 7 and 8, characterized in that the hook is made of rigid synthetic material or ceramic and that it is glued to the substrate or screwed into it. Revêtement (10) appliqué sur un substrat (1), caractérisé en ce qu'il comprend une armature (2) noyée dans le revêtement (10), l'armature (2) étant insérée dans des dispositifs d'accrochage (3) fixés sur le substrat (1) dans des positions variables par rapport au substrat (1).Coating (10) applied to a substrate (1), characterized in that it comprises an armature (2) embedded in the coating (10), the armature (2) being inserted in fastening devices (3) fixed on the substrate (1) in variable positions relative to the substrate (1). Revêtement conforme à la revendication 11, caractérisé en ce qu'il comprend une substance résistant à la chaleur, notamment à la chaleur produite par un incendie.Coating according to claim 11, characterized in that it comprises a substance resistant to heat, in particular to the heat produced by a fire.
EP91402278A 1990-08-24 1991-08-22 Substrate lining process and device and lining obtained therewith Withdrawn EP0472468A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9010641 1990-08-24
FR9010641A FR2666032B1 (en) 1990-08-24 1990-08-24 PROCESS FOR APPLYING A COATING ON A SUBSTRATE, DEVICE FOR CARRYING OUT THE METHOD AND COATING OBTAINED BY THE PROCESS.

Publications (1)

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EP0472468A1 true EP0472468A1 (en) 1992-02-26

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US (1) US5188690A (en)
EP (1) EP0472468A1 (en)
CA (1) CA2049471A1 (en)
FR (1) FR2666032B1 (en)
NO (1) NO913215L (en)

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FR2735564A1 (en) * 1995-06-19 1996-12-20 Air Liquide Fluid injection tube for high-temperature glass melting furnace etc.
FR2764368A1 (en) * 1997-06-06 1998-12-11 Lorraine Laminage Anchoring system for refractory lining of iron and steel-making equipment
EP1026466A1 (en) * 1999-02-02 2000-08-09 Plibrico G.m.b.H. Internally cooled tubular body with a refractory concrete jacket and fabrication process
WO2009115173A1 (en) * 2008-03-19 2009-09-24 Jünger + Gräter Gmbh Feuerfestbau Single-piece steel anchor for anchoring unformed fireproof building materials

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US5918438A (en) * 1997-04-15 1999-07-06 South; David B. Dome type building and method of making same
WO2003002819A1 (en) * 2001-06-27 2003-01-09 Tiziano Odorizzi Method and apparatus for manufacturing paving and/or panelling modules
US6840013B2 (en) * 2002-09-11 2005-01-11 Dome Technology, Inc. Building with foam cored ribs and method
CA2433505A1 (en) * 2003-06-24 2004-12-25 John Mcgrath Rock facade panel and methods of manufacturing a rock facade panel
RU2542038C2 (en) * 2009-12-10 2015-02-20 Новелис Инк. Method of production of tight heat-resistant butts in vessel for metal and vessel with such butts

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US2209762A (en) * 1938-06-09 1940-07-30 Teletype Corp Insulated enclosure
US3316685A (en) * 1962-07-25 1967-05-02 Universal Oil Prod Co Method for anchoring a concrete type of covering to a metal wall section with multiple anchor strip means
AT365335B (en) * 1980-05-14 1982-01-11 Plibrico Austria FIRE RESISTANT LINING FOR INDUSTRIAL OVENS
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FR2735564A1 (en) * 1995-06-19 1996-12-20 Air Liquide Fluid injection tube for high-temperature glass melting furnace etc.
FR2764368A1 (en) * 1997-06-06 1998-12-11 Lorraine Laminage Anchoring system for refractory lining of iron and steel-making equipment
EP1026466A1 (en) * 1999-02-02 2000-08-09 Plibrico G.m.b.H. Internally cooled tubular body with a refractory concrete jacket and fabrication process
WO2009115173A1 (en) * 2008-03-19 2009-09-24 Jünger + Gräter Gmbh Feuerfestbau Single-piece steel anchor for anchoring unformed fireproof building materials

Also Published As

Publication number Publication date
US5188690A (en) 1993-02-23
CA2049471A1 (en) 1992-02-25
NO913215D0 (en) 1991-08-16
FR2666032A1 (en) 1992-02-28
NO913215L (en) 1992-02-25
FR2666032B1 (en) 1993-10-15

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