WO2007012785A1 - Sealing device with metal joint - Google Patents

Sealing device with metal joint Download PDF

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Publication number
WO2007012785A1
WO2007012785A1 PCT/FR2006/050751 FR2006050751W WO2007012785A1 WO 2007012785 A1 WO2007012785 A1 WO 2007012785A1 FR 2006050751 W FR2006050751 W FR 2006050751W WO 2007012785 A1 WO2007012785 A1 WO 2007012785A1
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WO
WIPO (PCT)
Prior art keywords
flange
seal
flanges
groove
grooves
Prior art date
Application number
PCT/FR2006/050751
Other languages
French (fr)
Inventor
Alain Leclerc
Original Assignee
Xbybus
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 Xbybus filed Critical Xbybus
Publication of WO2007012785A1 publication Critical patent/WO2007012785A1/en

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Classifications

    • 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
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0881—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by plastic deformation of the packing
    • 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
    • F16L23/20—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal

Definitions

  • the invention relates to a sealing device with a metal gasket.
  • Figure 1 is a diagram of a half section of two flanges assembled with a metal seal.
  • a conduit 10 has two parts 12 and 14 connected to sealing.
  • the portion 12 terminates in a flange 16 and, similarly, the portion 14 terminates in a flange 18.
  • the flanges 16 and 18 are made of stainless steel and the seal 20 is made of copper.
  • This seal is of toric shape of rectangular section.
  • the flanges being identical, it suffices to describe one of them, for example that of reference 16.
  • the latter comprises a face 26 perpendicular to the axis 24 of the duct 10 which has an edge 28 at the top of a projection 30 of section substantially in the shape of a right triangle.
  • the flange 16 ends with a face 32 at greater distance, considered along the axis 24, of the face 26 than the edge 28.
  • screwing means represented by the axis 34
  • the edges 28 of the two flanges penetrate the faces 36 20 which are perpendicular to the axis 24 and the gasket 20, thus applying the outer face 38 of this seal against a corresponding cylindrical face 40 of the two flanges.
  • the creep applying the periphery 38 of the seal 20 against the face 40 of the flanges results from the presence of an inclined face 41 of the projections 30. This ensures a seal between the inside of the duct 10 and the outside 42.
  • the invention As a result of the observation that the more pressure is exerted between the two flanges and the more the edges 28 come closer to each other. This results in risks of micro-leaks.
  • the sealing device comprises two metal flanges with facing faces and between which is interposed a metal seal, and it is characterized in that the flanges each comprise a groove, each groove having, in section perpendicular to the faces facing at least one inclined side with respect to the face of the flange and in that the metal gasket has, in section, a shape and dimensions such that it penetrates into the two grooves and that the clamping approaching the active faces flanges force this metal seal against the two faces of each of the grooves.
  • the seal does not flow and its thickness is not substantially changed since it avoids the penetration of edges in the seal.
  • each groove has, in section perpendicular to the active face of the flange, an inclined side with respect to this active face and a side perpendicular to this face, the joint having in section a side, for example an external side, intended to be applied against the side of the groove which is normal to the active face of the flange.
  • the metal seal preferably has a rectangular or square section and two edges of this seal are intended to be applied against the inclined side of each of the grooves. Under these conditions, a face, for example its outer face, of the metal seal is applied with an optimized force against the side of the groove which is perpendicular to the active face of the flange.
  • the section of the seal is circular, which allows to use a wire.
  • the metal seal has a hardness less than that of the flange, at least in the portion of the latter which has the groove.
  • At least one flange and the gasket are made of the same metal, such as aluminum, and the flange is hardened in the zone comprising the groove.
  • the seal is pure aluminum type A5 or A1050.
  • the use of aluminum to form the flanges and the seal has the advantage that these sealing devices can be used in applications where it is necessary to avoid magnetic disturbances because, then, one does not have to use heat treatments or magnetic shielding.
  • the use of aluminum to form the flanges and the seal also has the advantage of replacing the copper in nuclear type applications and high neutron radiation.
  • at least one of the flanges is made of steel, in particular stainless steel, and the seal is made of aluminum.
  • the device according to the invention is compatible with known flanges. Indeed, it can provide a seal housed in the grooves defined by the faces 40 and 41 ( Figure 1).
  • the invention also relates to a flange for a sealing device which is intended to cooperate with another flange and an interposable metal seal between the two flanges, which is characterized in that it comprises an active face intended to be brought closer to the flange. active face of the other flange, which has a groove for receiving the metal seal, this active face being devoid of protruding edge of this active face.
  • the invention also relates to a method of manufacturing a flange of a sealing device defined above in which the flange is hardened in the zone comprising the groove and which is characterized in that, to carry out the hardening before carrying out from the groove, a force impression is made on the active face of the flange. In this case, preferably, after the realization of the impression, forging or burnishing of this impression is carried out.
  • FIG. 1 already described, represents a sealing device of the prior art
  • FIG. 2 is a diagram similar to that of FIG. 1, but for a sealing device according to the invention
  • the FIG. 3 illustrates a step of a method of manufacturing a flange according to the invention
  • Figure 4 illustrates an alternative embodiment of a sealing device according to the invention.
  • the sealing device shown in Figure 2 comprises two aluminum flanges, respectively 52 and 54, each comprising a groove, respectively 56 and 58. These grooves 56, 58 have the same shape and the same dimension.
  • the groove 56 comprises, in section, a face 60 parallel to the axis 24 and a face 62 inclined with respect to the axis 24.
  • the seal 66 is made of aluminum and has a toroidal shape of rectangular section.
  • the outer face 68 of the seal 66 is intended to be applied against the faces 60 of the grooves 56 and 58 while the internal edges, respectively 70 and 72, of the seal 66 are applied against the inclined faces 62 of the grooves 56 and
  • At least the region of the flanges comprising the grooves is of a hardness substantially greater than the hardness of the seal 66.
  • a curing treatment is carried out at the region of the corresponding flange in which the groove is to be made.
  • a large pressure for example several tons, is applied to zone 80 (FIG. 3) in which the groove of the active surface 82 must be made, perpendicular to the axis 24, of the flange.
  • This pressure application makes an impression 84 and the hardening is completed by a forging or roller burnishing which consists in force applying a tool 86 of the wheel type which traverses the annular imprint 84. After this hardening, the corresponding groove 56 is machined. or 58.
  • the sealing device according to the invention can be used with existing flanges of the type shown in FIG. 1.
  • a conventional flange 18i for example made of stainless steel
  • the groove formed by the inclined face 4Ii and the face 4Oi which, in section, is parallel to the axis 24.
  • the sealing device comprises a conventional flange 18i stainless steel, a flange according to I 54i invention and an aluminum seal 66 1 as the flange 54i.
  • the reliability of the seal is higher than that obtained with a conventional device, which is particularly important for space applications and in the nuclear field for which the seals can not be replaced.
  • the sealing device can be used whenever it is necessary to obtain a high vacuum.
  • Nonlimiting examples include, in addition to applications in the space and nuclear fields, equipment for analyzing materials, synchrotrons, and machines using reactive gases or chlorinated products, for example in the field. microelectronics or semiconductors.
  • This sealing device according to the invention does not deteriorate the flange, unlike the conventional use which "dulls" the pointed part of the knife of the bridle.
  • the sealing device according to the invention can be used with square, rectangular or other shaped flanges, such as a toroidal shape for particle accelerators.

Abstract

The invention concerns a sealing device comprising two metal flanges with opposite surfaces and between which is interposed a metal joint. The flanges comprise each one groove (56, 58), said grooves being opposite each other, each groove having, in cross-section perpendicular to the opposite surfaces, or active surfaces, one side (62) inclined relative to the surface of the flange and one side (60) substantially normal to the active surface of the flange. The metal joint (66) has in cross-section a shape and dimensions such that it penetrates into the two grooves and that the clamping bringing the actives surfaces closer together forcefully applies said metal joint against the two surfaces of each of the grooves.

Description

DISPOSITIF D'ETANCHEITE A JOINT EN METAL SEALING DEVICE WITH METAL SEAL
L' invention est relative à un dispositif d' étanchéité à joint en métal.The invention relates to a sealing device with a metal gasket.
Pour de nombreuses utilisations, il est nécessaire de faire appel à des joints d' étanchéité permettant d'isoler une enceinte de l'atmosphère extérieure. A cet effet, on utilise des joints emprisonnés entre deux brides. Les joints les plus courants sont en élastomère. Toutefois, un tel joint ne peut pas être utilisé pour toutes les applications . En particulier, quand l'enceinte à étanchéifier est soumise à un vide poussé, à une forte pression ou à des gaz réputés dangereux, on fait appel à un joint métallique.For many uses, it is necessary to use gaskets to isolate an enclosure from the outside atmosphere. For this purpose, seals trapped between two flanges are used. The most common seals are made of elastomer. However, such a seal can not be used for all applications. In particular, when the chamber to be sealed is subjected to a high vacuum, high pressure or gases deemed dangerous, use is made of a metal seal.
Un dispositif d' étanchéité à joint métallique de l'état antérieur de la technique est représenté sur la figure 1 qui est un schéma d'une demie coupe de deux brides assemblées avec un joint métallique.A metal seal device of the prior art is shown in Figure 1 which is a diagram of a half section of two flanges assembled with a metal seal.
Comme représenté, un conduit 10 comporte deux parties 12 et 14 raccordées à étanchéité. A cet effet, la partie 12 se termine par une bride 16 et, de même, la partie 14 se termine par une bride 18. Les brides 16 et 18 sont en acier inoxydable et le joint d' étanchéité 20 est en cuivre. Ce joint d' étanchéité est de forme torique de section rectangulaire. Les brides étant identiques, il suffit de décrire l'une d'elles, par exemple celle de référence 16. Cette dernière comporte une face 26 perpendiculaire à l'axe 24 du conduit 10 qui présente une arête 28 au sommet d'une saillie 30 de section sensiblement en forme de triangle rectangle.As shown, a conduit 10 has two parts 12 and 14 connected to sealing. For this purpose, the portion 12 terminates in a flange 16 and, similarly, the portion 14 terminates in a flange 18. The flanges 16 and 18 are made of stainless steel and the seal 20 is made of copper. This seal is of toric shape of rectangular section. The flanges being identical, it suffices to describe one of them, for example that of reference 16. The latter comprises a face 26 perpendicular to the axis 24 of the duct 10 which has an edge 28 at the top of a projection 30 of section substantially in the shape of a right triangle.
La bride 16 se termine par une face 32 à plus grande distance, considérée selon l'axe 24, de la face 26 que l'arête 28.The flange 16 ends with a face 32 at greater distance, considered along the axis 24, of the face 26 than the edge 28.
Lors de l'installation, des moyens de vissage, représentés par l'axe 34, rapprochent la face 32 de la bride 16 de la face correspondante de la bride 18. Dans ces conditions, les arêtes 28 des deux brides pénètrent dans les faces 36 du joint 20 qui sont perpendiculaires à l'axe 24 et le joint 20 flue, appliquant ainsi la face externe 38 de ce joint contre une face cylindrique correspondante 40 des deux brides. Le fluage appliquant la périphérie 38 du joint 20 contre la face 40 des brides résulte de la présence d'une face 41 inclinée des saillies 30. On assure ainsi une étanchéité entre l'intérieur du conduit 10 et l'extérieur 42. L'invention résulte de la constatation que, plus on exerce de pression entre les deux brides et plus les arêtes 28 se rapprochent l'une de l'autre. Il en résulte des risques de microfuites .During installation, screwing means, represented by the axis 34, bring the face 32 of the flange 16 of the corresponding face of the flange 18. Under these conditions, the edges 28 of the two flanges penetrate the faces 36 20 which are perpendicular to the axis 24 and the gasket 20, thus applying the outer face 38 of this seal against a corresponding cylindrical face 40 of the two flanges. The creep applying the periphery 38 of the seal 20 against the face 40 of the flanges results from the presence of an inclined face 41 of the projections 30. This ensures a seal between the inside of the duct 10 and the outside 42. The invention As a result of the observation that the more pressure is exerted between the two flanges and the more the edges 28 come closer to each other. This results in risks of micro-leaks.
L'invention remédie à cet inconvénient. Le dispositif d' étanchéité conforme à l'invention comporte deux brides métalliques à faces en regard et entre lesquelles est interposé un joint métallique, et il est caractérisé en ce que les brides comportent chacune une rainure, chaque rainure présentant, en section perpendiculaire aux faces en regard, au moins un côté incliné par rapport à la face de la bride et en ce que le joint métallique présente, en section, une forme et des dimensions telles qu'il pénètre dans les deux rainures et que le serrage rapprochant les faces actives des brides applique à force ce joint métallique contre les deux faces de chacune des rainures. Ainsi, par rapport au dispositif d'étanchéité de l'état de la technique, le joint ne flue pas et son épaisseur ne se modifie pratiquement pas puisqu'on évite la pénétration d'arêtes dans le joint. Au surplus, étant donné qu'il n'est pas nécessaire que des arêtes pénètrent dans le joint, les efforts exercés pour assurer l'étanchéité sont moins importants qu'avec le joint connu. En conséquence, on peut utiliser moins d'éléments de vissage qu'avec une bride connue. Dans un exemple, le nombre d'éléments de vissage est réduit de moitié.The invention overcomes this disadvantage. The sealing device according to the invention comprises two metal flanges with facing faces and between which is interposed a metal seal, and it is characterized in that the flanges each comprise a groove, each groove having, in section perpendicular to the faces facing at least one inclined side with respect to the face of the flange and in that the metal gasket has, in section, a shape and dimensions such that it penetrates into the two grooves and that the clamping approaching the active faces flanges force this metal seal against the two faces of each of the grooves. Thus, compared to the sealing device of the state of the art, the seal does not flow and its thickness is not substantially changed since it avoids the penetration of edges in the seal. Moreover, since it is not necessary for edges to penetrate into the joint, the forces exerted to seal are less important than with the known seal. As a result, fewer screw elements can be used than with a known flange. In one example, the number of screw elements is halved.
Dans une réalisation préférée, chaque rainure présente en section perpendiculaire à la face active de la bride un côté incliné par rapport à cette face active et un côté perpendiculaire à cette face, le joint présentant en section un côté, par exemple un côté externe, destiné à être appliqué contre le côté de la rainure qui est normal à la face active de la bride. Dans ce cas, le joint métallique d'étanchéité présente, de préférence, une section rectangulaire ou carrée et deux arêtes de ce joint sont destinées à être appliquées contre le côté incliné de chacune des rainures. Dans ces conditions, une face, par exemple sa face externe, du joint métallique s'applique avec une force optimisée contre le côté de la rainure qui est perpendiculaire à la face active de la bride.In a preferred embodiment, each groove has, in section perpendicular to the active face of the flange, an inclined side with respect to this active face and a side perpendicular to this face, the joint having in section a side, for example an external side, intended to be applied against the side of the groove which is normal to the active face of the flange. In this case, the metal seal preferably has a rectangular or square section and two edges of this seal are intended to be applied against the inclined side of each of the grooves. Under these conditions, a face, for example its outer face, of the metal seal is applied with an optimized force against the side of the groove which is perpendicular to the active face of the flange.
En variante, la section du joint est circulaire, ce qui permet d'utiliser un fil.Alternatively, the section of the seal is circular, which allows to use a wire.
Dans une réalisation, le joint métallique présente une dureté inférieure à celle de la bride, au moins dans la partie de cette dernière qui comporte la rainure.In one embodiment, the metal seal has a hardness less than that of the flange, at least in the portion of the latter which has the groove.
Dans une réalisation de cette dernière disposition, au moins une bride et le joint sont réalisés en un même métal, tel que l'aluminium, et la bride est durcie dans la zone comportant la rainure .In an embodiment of this latter arrangement, at least one flange and the gasket are made of the same metal, such as aluminum, and the flange is hardened in the zone comprising the groove.
Par exemple, le joint est en aluminium pur de type A5 ou A1050. L'utilisation de l'aluminium pour former les brides et le joint a pour avantage qu'on peut utiliser ces dispositifs d'étanchéité dans des applications où il est nécessaire d'éviter des perturbations magnétiques car, alors, on n'a pas à faire appel à des traitements thermiques ou à un blindage magnétique.For example, the seal is pure aluminum type A5 or A1050. The use of aluminum to form the flanges and the seal has the advantage that these sealing devices can be used in applications where it is necessary to avoid magnetic disturbances because, then, one does not have to use heat treatments or magnetic shielding.
L'utilisation de l'aluminium pour former les brides et le joint a également pour avantage de remplacer le cuivre dans des applications de type nucléaire et à fort rayonnement neutronique . Dans une réalisation, au moins une des brides est en acier, notamment en acier inoxydable et le joint est en aluminium.The use of aluminum to form the flanges and the seal also has the advantage of replacing the copper in nuclear type applications and high neutron radiation. In one embodiment, at least one of the flanges is made of steel, in particular stainless steel, and the seal is made of aluminum.
Le dispositif conforme à l'invention est compatible avec les brides connues. En effet, on peut prévoir un joint logé dans les rainures délimitées par les faces 40 et 41 (figure 1) .The device according to the invention is compatible with known flanges. Indeed, it can provide a seal housed in the grooves defined by the faces 40 and 41 (Figure 1).
L'invention concerne aussi une bride pour dispositif d' étanchéité qui est destinée à coopérer avec une autre bride et un joint métallique interposable entre les deux brides, qui est caractérisée en ce qu'elle comporte une face active, destinée à être rapprochée de la face active de l'autre bride, qui présente une rainure de réception du joint métallique, cette face active étant dépourvue d' arête en saillie de cette face active .The invention also relates to a flange for a sealing device which is intended to cooperate with another flange and an interposable metal seal between the two flanges, which is characterized in that it comprises an active face intended to be brought closer to the flange. active face of the other flange, which has a groove for receiving the metal seal, this active face being devoid of protruding edge of this active face.
L' invention concerne aussi un procédé de fabrication d'une bride d'un dispositif d'étanchéité défini ci-dessus dans lequel la bride est durcie dans la zone comportant la rainure et qui est caractérisé en ce que, pour effectuer le durcissement avant réalisation de la rainure, on réalise une empreinte à force sur la face active de la bride. Dans ce cas, de préférence, après la réalisation de l'empreinte, on effectue un forgeage ou galetage de cette empreinte.The invention also relates to a method of manufacturing a flange of a sealing device defined above in which the flange is hardened in the zone comprising the groove and which is characterized in that, to carry out the hardening before carrying out from the groove, a force impression is made on the active face of the flange. In this case, preferably, after the realization of the impression, forging or burnishing of this impression is carried out.
D'autres caractéristiques et avantages de l'invention apparaîtront avec la description, non limitative, de certains de ses modes de réalisation, celle-ci étant effectuée en se référant aux dessins ci-annexés, sur lesquels : la figure 1, déjà décrite, représente un dispositif d'étanchéité de l'état antérieur de la technique, la figure 2 est un schéma analogue à celui de la figure 1 mais pour un dispositif d'étanchéité conforme à l'invention, la figure 3 illustre une étape d'un procédé de fabrication d'une bride conforme à l'invention, et la figure 4 illustre une variante de réalisation d'un dispositif d'étanchéité conforme à l'invention. Le dispositif d'étanchéité représenté sur la figure 2 comporte deux brides en aluminium, respectivement 52 et 54, comprenant chacune une rainure, respectivement 56 et 58. Ces rainures 56, 58 ont la même forme et la même dimension. La rainure 56 comporte, en section, une face 60 parallèle à l'axe 24 et une face 62 inclinée par rapport à l'axe 24.Other features and advantages of the invention will become apparent with the description, without limitation, of some of its embodiments, this being done with reference to the accompanying drawings, in which: FIG. 1, already described, represents a sealing device of the prior art, FIG. 2 is a diagram similar to that of FIG. 1, but for a sealing device according to the invention, the FIG. 3 illustrates a step of a method of manufacturing a flange according to the invention, and Figure 4 illustrates an alternative embodiment of a sealing device according to the invention. The sealing device shown in Figure 2 comprises two aluminum flanges, respectively 52 and 54, each comprising a groove, respectively 56 and 58. These grooves 56, 58 have the same shape and the same dimension. The groove 56 comprises, in section, a face 60 parallel to the axis 24 and a face 62 inclined with respect to the axis 24.
Le joint d'étanchéité 66 est réalisé en aluminium et présente une forme torique de section rectangulaire.The seal 66 is made of aluminum and has a toroidal shape of rectangular section.
La face externe 68 du joint 66 est destinée à être appliquée contre les faces 60 des rainures 56 et 58 tandis que les arêtes internes, respectivement 70 et 72, du joint 66 s'appliquent contre les faces inclinées 62 des rainures 56 etThe outer face 68 of the seal 66 is intended to be applied against the faces 60 of the grooves 56 and 58 while the internal edges, respectively 70 and 72, of the seal 66 are applied against the inclined faces 62 of the grooves 56 and
58.58.
Lorsque l'on rapproche les brides 52 et 54 l'une de l'autre avec des moyens de vissage 34, la pression exercée sur les arêtes 70 et 72 par les faces inclinées 62 applique la face 68 externe du joint 66 contre les faces 60 des rainures.When the flanges 52 and 54 are brought closer to one another with screwing means 34, the pressure exerted on the ridges 70 and 72 by the inclined faces 62 applies the outer face 68 of the gasket 66 against the faces 60 grooves.
Il est préférable qu'au moins la zone des brides comportant les rainures soit d'une dureté sensiblement plus importante que la dureté du joint 66. Lorsque le joint 66 et les brides 52, 54 sont réalisés en un même matériau tel que l'aluminium, on fait subir un traitement de durcissement à la zone de la bride correspondante dans laquelle doit être réalisée la rainure. A cet effet, on applique une pression importante, par exemple de plusieurs tonnes, sur la zone 80 (figure 3) dans laquelle doit être réalisée la rainure de la surface active 82, perpendiculaire à l'axe 24, de la bride. Cette application à pression réalise une empreinte 84 et le durcissement est complété par un forgeage ou galetage qui consiste à appliquer à force un outil 86 du type molette qui parcourt l'empreinte annulaire 84. Après ce durcissement, on réalise par usinage la rainure correspondante 56 ou 58.It is preferable that at least the region of the flanges comprising the grooves is of a hardness substantially greater than the hardness of the seal 66. When the seal 66 and the flanges 52, 54 are made of the same material such as aluminum a curing treatment is carried out at the region of the corresponding flange in which the groove is to be made. For this purpose, a large pressure, for example several tons, is applied to zone 80 (FIG. 3) in which the groove of the active surface 82 must be made, perpendicular to the axis 24, of the flange. This pressure application makes an impression 84 and the hardening is completed by a forging or roller burnishing which consists in force applying a tool 86 of the wheel type which traverses the annular imprint 84. After this hardening, the corresponding groove 56 is machined. or 58.
Le dispositif d'étanchéité selon l'invention peut être utilisé avec des brides existantes du type de celles représentées sur la figure 1. A cet effet, on utilise, dans une bride classique 18i, par exemple en acier inoxydable, la rainure ménagée par la face inclinée 4Ii et la face 4Oi qui, en coupe, est parallèle à l'axe 24. Ainsi, dans l'exemple représenté sur la figure 4, le dispositif d'étanchéité comporte une bride classique 18i en acier inoxydable, une bride selon l'invention 54i et un joint d'étanchéité 661 en aluminium comme la bride 54i.The sealing device according to the invention can be used with existing flanges of the type shown in FIG. 1. For this purpose, in a conventional flange 18i, for example made of stainless steel, the groove formed by the inclined face 4Ii and the face 4Oi which, in section, is parallel to the axis 24. Thus, in the example shown in Figure 4, the sealing device comprises a conventional flange 18i stainless steel, a flange according to I 54i invention and an aluminum seal 66 1 as the flange 54i.
Il est à noter que, quel que soit le mode de réalisation, on obtient une bonne étanchéité en exerçant une force de serrage entre les brides qui est moins importante qu'avec le dispositif d'étanchéité connu. On peut ainsi utiliser un nombre d'éléments de vissage moins important que dans un dispositif d'étanchéité connu.It should be noted that, whatever the embodiment, a good seal is obtained by exerting a clamping force between the flanges which is less important than with the known sealing device. It is thus possible to use a smaller number of screw elements than in a known sealing device.
En outre, la fiabilité de l' étanchéité est supérieure à celle que l'on obtient avec un dispositif classique, ce qui est particulièrement important pour des applications dans le domaine spatial et dans le domaine nucléaire pour lesquelles les joints ne peuvent pas être remplacés.In addition, the reliability of the seal is higher than that obtained with a conventional device, which is particularly important for space applications and in the nuclear field for which the seals can not be replaced.
Le dispositif d'étanchéité peut être utilisé à chaque fois qu'il est nécessaire d'obtenir un vide poussé. On peut citer à titre d'exemples, non limitatifs, outre les applications du domaine spatial et du domaine nucléaire, les équipements d'analyse de matériaux, les synchrotrons, et les machines utilisant des gaz réactifs ou des produits chlorés par exemple dans le domaine de la microélectronique ou des semiconducteurs .The sealing device can be used whenever it is necessary to obtain a high vacuum. Nonlimiting examples include, in addition to applications in the space and nuclear fields, equipment for analyzing materials, synchrotrons, and machines using reactive gases or chlorinated products, for example in the field. microelectronics or semiconductors.
Ce dispositif d'étanchéité selon l'invention ne détériore pas la bride, contrairement à l'utilisation classique qui "émousse" la partie pointue du couteau de la bride.This sealing device according to the invention does not deteriorate the flange, unlike the conventional use which "dulls" the pointed part of the knife of the bridle.
Le dispositif d'étanchéité selon l'invention peut être utilisé avec des brides carrées, rectangulaires ou d'une autre forme, telle qu'une forme toroïdale pour des accélérateurs de particules . The sealing device according to the invention can be used with square, rectangular or other shaped flanges, such as a toroidal shape for particle accelerators.

Claims

REVENDIC-VTIONS REVENDIC-VTIONS
1. Dispositif d'étanchéité comprenant deux brides métalliques à faces en regard et entre lesquelles est interposé un joint métallique, caractérise en ce que les brides comportent chacune une rainure (56, 58) , ces rainures étant en regard, chaque rainure présentant, en section perpendiculaire aux faces en regard, ou faces actives, un côté (62) incliné par rapport à la face de la bride et un côté (60) sensiblement normal à la face active de la bride, en ce que le joint métallique (136, 661) présente en section une forme et des dimensions telles qu'il pénètre dans les deux rainures et que le serrage rapprochant les faces actives des brides applique à force ce joint métallique1. Sealing device comprising two metal flanges facing each other and between which is interposed a metal seal, characterized in that the flanges each comprise a groove (56, 58), these grooves being opposite, each groove having, in cross-section perpendicular to the facing faces, or active faces, a side (62) inclined relative to the face of the flange and a side (60) substantially normal to the active face of the flange, in that the metal seal (136, 66 1 ) has in section a shape and dimensions such that it penetrates into the two grooves and that the clamping approaching the active faces of the flanges forcefully applies this metal seal
(66, 661) contre les deux faces de chacune des rainures et en ce qu'au moins une bride et le joint sont réalisés en un même métal, la bride étant durcie dans la zone comportant la rainure.(66, 66 1 ) against the two faces of each of the grooves and in that at least one flange and the seal are made of the same metal, the flange being hardened in the area comprising the groove.
2. Dispositif selon la revendication 1, caractérisé en ce qu'en section perpendiculaire à la face active de la bride, chaque rainure présente un côté incliné par rapport à cette face active et un côté perpendiculaire à cette face active, le joint présentant, en section, un côté, par exemple le côté externe, destiné à être appliqué contre le côte de la rainure qui est normal à la face active de la bride.2. Device according to claim 1, characterized in that in section perpendicular to the active face of the flange, each groove has an inclined side with respect to this active face and a side perpendicular to this active face, the seal having, in section, one side, for example the outer side, intended to be applied against the side of the groove which is normal to the active face of the flange.
3. Dispositif selon la revendication 2, caractérisé en ce que le joint métallique d'étanchéité (66, 661) présente une section rectangulaire ou carrée, deux arêtes de ce joint étant destinées à être appliquées contre le côté incline de chacune des rainures .3. Device according to claim 2, characterized in that the metal seal (66, 66 1 ) has a rectangular or square section, two edges of this seal being intended to be applied against the inclined side of each of the grooves.
4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le joint métallique (66, 661) présente une dureté inférieure à celle de la bride, au moins dans la partie de cette dernière qui comporte la rainure.4. Device according to one of the claims previous, characterized in that the metal seal (66, 66 1 ) has a hardness less than that of the flange, at least in the part of the latter which has the groove.
5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le joint métallique et au moins l'une des brides sont en aluminium.5. Device according to one of the preceding claims, characterized in that the metal seal and at least one of the flanges are aluminum.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'une des brides est en acier, notamment en acier inoxydable, et en ce que l'autre brides et le joint (661) sont en aluminium.6. Device according to one of claims 1 to 5, characterized in that one of the flanges is made of steel, in particular stainless steel, and in that the other flanges and the seal (661) are made of aluminum.
7. Procédé de fabrication d'une bride de dispositif selon la revendication 5, caractérisé en ce que, pour effectuer le durcissement avant réalisation de la rainure, on réalise une empreinte à force sur la face active de la bride.7. A method of manufacturing a device flange according to claim 5, characterized in that, to effect the hardening before making the groove, a force impression is made on the active face of the flange.
8. Procédé selon la revendication 7, caractérisé en ce qu'après la réalisation d'empreinte, on effectue un forgeage ou galetage de cette empreinte. 8. A method according to claim 7, characterized in that after the realization of impression, forging or burnishing of this impression.
PCT/FR2006/050751 2005-07-28 2006-07-26 Sealing device with metal joint WO2007012785A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0552359A FR2889280B1 (en) 2005-07-28 2005-07-28 SEALING DEVICE WITH METAL SEAL
FR0552359 2005-07-28

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US8633619B2 (en) 2009-07-10 2014-01-21 Protonex Technology Corporation Power managers and methods for operating power managers
USD802533S1 (en) 2016-03-23 2017-11-14 Protonex Technology Corporation Portable power manager enclosure
US10250134B2 (en) 2013-04-01 2019-04-02 Revision Military Ltd. Power manager
US10326284B2 (en) 2014-11-11 2019-06-18 Revision Military Ltd. Control module for DC power network
US10587116B2 (en) 2015-11-20 2020-03-10 Galvion Soldier Power, Llc Distributed power manager
US10848067B2 (en) 2015-11-20 2020-11-24 Galvion Soldier Power, Llc Power manager with reconfigurable power converting circuits
US11258366B2 (en) 2015-11-20 2022-02-22 Galvion Soldier Power, Llc Power manager with reconfigurable power converting circuits

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Cited By (15)

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US8638011B2 (en) 2009-07-10 2014-01-28 Protonex Technology Corporation Portable power manager operating methods
US8775846B2 (en) 2009-07-10 2014-07-08 Protonex Technology Corporation Portable power manager having one or more device ports for connecting with external power loads
US11569667B2 (en) 2009-07-10 2023-01-31 Galvion Soldier Power, Llc Power managers and methods for operating power managers
US10333315B2 (en) 2009-07-10 2019-06-25 Revision Military Ltd. Power managers and methods for operating power managers
US11283265B2 (en) 2009-07-10 2022-03-22 Galvion Soldier Power, Llc Power managers and methods for operating power managers
US10250134B2 (en) 2013-04-01 2019-04-02 Revision Military Ltd. Power manager
US10361629B2 (en) 2013-04-01 2019-07-23 Revision Military Ltd. Power manager
US10326284B2 (en) 2014-11-11 2019-06-18 Revision Military Ltd. Control module for DC power network
US10848067B2 (en) 2015-11-20 2020-11-24 Galvion Soldier Power, Llc Power manager with reconfigurable power converting circuits
US11108230B2 (en) 2015-11-20 2021-08-31 Galvion Soldier Power, Llc Power manager with reconfigurable power converting circuits
US11258366B2 (en) 2015-11-20 2022-02-22 Galvion Soldier Power, Llc Power manager with reconfigurable power converting circuits
US10587116B2 (en) 2015-11-20 2020-03-10 Galvion Soldier Power, Llc Distributed power manager
US11355928B2 (en) 2015-11-20 2022-06-07 Galvion Soldier Power, Llc Distributed power manager
USD802533S1 (en) 2016-03-23 2017-11-14 Protonex Technology Corporation Portable power manager enclosure

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Publication number Publication date
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FR2889280B1 (en) 2007-12-07

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