EP3641499A1 - Microwave reflective panel, elements comprising such a panel, and method for obtaining same - Google Patents

Microwave reflective panel, elements comprising such a panel, and method for obtaining same Download PDF

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Publication number
EP3641499A1
EP3641499A1 EP18306352.8A EP18306352A EP3641499A1 EP 3641499 A1 EP3641499 A1 EP 3641499A1 EP 18306352 A EP18306352 A EP 18306352A EP 3641499 A1 EP3641499 A1 EP 3641499A1
Authority
EP
European Patent Office
Prior art keywords
panel
metallic fabric
stretched
glazing
support
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Withdrawn
Application number
EP18306352.8A
Other languages
German (de)
French (fr)
Inventor
Benoit Kolheb
Sébastien GASNIER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schott VTF SAS
Original Assignee
Schott VTF SAS
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 Schott VTF SAS filed Critical Schott VTF SAS
Priority to EP18306352.8A priority Critical patent/EP3641499A1/en
Priority to PCT/EP2019/063713 priority patent/WO2020078593A1/en
Priority to BR112021004879-0A priority patent/BR112021004879A2/en
Priority to EP19726003.7A priority patent/EP3868177B1/en
Priority to CN201980067520.5A priority patent/CN112840743B/en
Priority to MX2021002800A priority patent/MX2021002800A/en
Priority to US17/276,663 priority patent/US20220039220A1/en
Priority to KR1020217013223A priority patent/KR102583658B1/en
Publication of EP3641499A1 publication Critical patent/EP3641499A1/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/76—Prevention of microwave leakage, e.g. door sealings
    • H05B6/766—Microwave radiation screens for windows

Definitions

  • the present invention relates to a panel absorbing and / or reflecting microwaves, a glazing, preferably for an oven using microwaves, comprising such a panel, and a method for obtaining such a panel and a such glazing.
  • Microwaves are electromagnetic radiation, used in industry in many technical fields. They are also used daily by professionals or individuals, in the field of household appliances, and more particularly heat treatment devices, such as ovens.
  • microwaves there are ovens commonly known as “microwaves” because they only use microwave radiation for heating and rapid cooking of food
  • so-called “combi” ovens because they use microwaves and one or more other sources of production of heat, such as for example an electrical resistance or an infrared source, as opposed to so-called “traditional” ovens using only one type of heat source, such as for example gas or electricity.
  • the ovens using microwaves, generally comprise a cooking enclosure, which confines the radiations, and means for closing an opening by which the products to be heat treated are placed in the oven, which include, or are usually a door, capable of limiting or even preventing the escape of microwaves out of the enclosure.
  • the door includes glazing that is little or not transparent to microwaves by the use of shielding.
  • the means for shielding glazing units comprise or consist of a network of conductors forming a mesh, which has the advantage of retaining a certain optical transparency, in the visible range, and a certain opacity in the microwave.
  • the mesh size of such a network is generally between 1 and 2 mm, which represents 10% of the wavelength of microwaves used in an oven, which have a wavelength of 12 cm for a frequency generally fixed at 2.5 GHz in the most ovens. This allows about 90% of the microwaves generated in the oven to be reflected.
  • the conductor network is, or includes a metal grid.
  • the document DE3714122 describes a microwave oven door comprising a metal shielding grid, fixed to the metal part of the door frame using enamel or paint.
  • the document FR2484397 describes a safety glass for a microwave oven comprising a glass support to which a conductive network is applied, formed by a metallic mesh, covered with a transparent or colored protective enamel layer coated with electrically conductive layers and optically transparent.
  • the document DE202008010620U describes a microwave oven door comprising a metallic fabric disposed between an external window and an internal window, the space being joined using silicone.
  • the glazing is substantially transparent to rays in the visible range, this transparency is greatly reduced by the presence of the anti-microwave shielding, namely the metal grid, and it is very difficult for the user to be able to see easily inside the oven enclosure. Furthermore, not only does such glazing have a perfectly unsightly appearance, it also gives the oven, which includes such glazing, a connotation of "microwave oven", which may prove to be negative for certain users, especially with regard to mixed ovens.
  • the present invention aims to provide a panel absorbing and / or reflecting microwaves, glazing comprising such a panel, and a method of manufacturing such a panel and glazing, which do not have the drawbacks of the state of the technical.
  • the present invention aims to provide an alternative to the solutions of the existing state of the art.
  • the present invention aims to provide a panel absorbing and / or reflecting microwaves and glazing comprising such a panel, the final aesthetic rendering of which is improved.
  • the present invention also aims to provide a method of manufacturing a panel and glazing, in particular for ovens, which is quick and easy to implement.
  • the present invention relates to a glazing panel comprising a rigid support, substantially transparent to radiation in the visible range, and comprising at least one surface, comprising a periphery, and one or more edges, in which at least one surface is covered with 'a metallic fabric in a "stretched" form.
  • the present invention also relates to a glazing unit comprising at least one panel according to the invention and one or more coatings, and / or one or more plates of the same nature and / or characteristics and / or dimension as that (s) of the support.
  • the present invention further relates to means for closing a heat treatment enclosure comprising the glazing according to the invention, and a frame, fixed on and / or surrounding the glazing, and comprising, or cooperating with, hinge means for closing the heat treatment enclosure.
  • the frame is in electrical contact with the metallic fabric.
  • the present invention further relates to a heat treatment device using microwaves comprising a heat treatment enclosure and the sealing means according to the invention.
  • the present invention also relates to a method for producing a panel according to the invention, comprising the steps of taking a rigid support substantially transparent to radiation in the visible range, and comprising at least one surface, a periphery, and one or more several edges, to take a metallic fabric and stretch it to make it pass from a state of "rest” to a “stretched” state, to fix, by means of fixing, the stretched metallic fabric, and the keep stretched, on the surface.
  • the present invention also relates to a method of producing a glazing according to the invention, comprising the steps of taking a panel, produced by implementing the method of producing the panel according to the invention, of taking one or more coatings, and / or one or more coatings, and / or one or more plates of the same nature and / or characteristics and / or dimension as that (s) of the support, to cover all or part of the metallic fabric and / or of the support not covered with the metallic fabric.
  • the present invention also relates to a method of producing sealing means, a heat treatment enclosure, according to the invention, comprising the steps of taking a glazing, produced by implementing the method of producing a glazing according to the invention, taking a frame, fixing it on the glazing, at the level of, or on, the means for fixing the metallic fabric on the support and / or on one or more edges of the support.
  • the present invention also relates to a method for producing a heat treatment device using microwaves comprising the steps of taking the cooking chamber, of taking the sealing means, produced by implementing the method of producing the means. shutter according to the invention, and connecting the shutter means to the enclosure.
  • the term "length” is used to describe the largest of the measurements on one side of any geometric shape, for example the large radius of an ellipsoid or of an ellipse, the base or height of a triangle, the length of a trapezoid or rectangle.
  • the term “width” is used to describe the smallest of the measures, for example the small radius of an ellipsoid or ellipse, the base or height of a triangle, the width of a trapezoid or a rectangle, and the terms “length” and “width” can be used interchangeably, for example to denote the measurement of the radius of a disc, the side of a square.
  • the panel 1 comprises a support 2, which is rigid, substantially inflexible. It has a mechanical resistance to bending and / or torsional stresses, sufficient not to deform under the action of a bending and / or torsional force.
  • the support 2 is substantially planar, and comprises at least a first surface 3, continuous and substantially planar, preferably a second surface 4, continuous and substantially planar, opposite said first surface 3 ( figure 1 ).
  • the support 2 has a shape, a thickness and dimensions which are adequate and suitable, or compatible, with the end use of the panel 1, or of the elements which comprise such a panel 1.
  • the support 2 has a cross section, therefore in the plane formed by the surface 2 or the surface 3, in the XZ plane, of circular, elliptical, polygonal, trapezoidal shape or else of a quadrilateral, advantageously a diamond section , square or rectangular.
  • the support 2 has a longitudinal section, therefore in the XY plane, and / or a cross section, therefore in the YZ plane, perpendicular to the plane formed by the surface 2 or the surface 3, circular, elliptical or polygonal, trapezoidal or else a quadrilateral, advantageously a square or rectangular section, a trapezoid or a rectangular trapezoid.
  • the support 2 is made of an inert material, preferably at least thermally inert, advantageously also physically and chemically inert to the material (s) with one or both of these surfaces 2 and 3 is / are covered ( s) or in contact.
  • the support 2 is preferably transparent, or else partially transparent, optically in the visible range, in its thickness and / or its width and / or its length. It can be sandblasted and / or screen-printed and / or colored on part of one or both of the surfaces 3 and 4.
  • the support 2 is made of, or comprises plastic, glass, a crystalline or semi-crystalline material, a ceramic or a glass-ceramic.
  • the support 2 is glass, preferably a transparent or mass-colored soda-lime glass, possibly with various layers, such as anti-bacterial, anti-reflective, for example of the type known under the brand Matelux®, chrome-plated, with low emissivity, for example of the type known under the name of Planibel Clear or of Planibel low-E IsoComfort, marketed by the company AGC, or a borosilicate for example known under the brand Borofloat® 33
  • the glass has a high SiO 2 content, a content advantageously between 69% and 81% by weight. and with a light transmission of up to 90%.
  • the glass may possibly have previously undergone a heat treatment of the hardening, annealing, tempering, bending type.
  • the panel 1 comprises anti-microwave shielding means comprising a metallic fabric 5, fixed on all or part of one of the surfaces 3 or 4, preferably on the two surfaces 3 and 4 of the support 2, the metallic fabric 5 being in constrained form, preferably in stretched form.
  • the metallic fabric 5 can protrude from one or more edges 8 of the support 2, and also the cover (s), however preferably in a non-stretched form, therefore in the rest state.
  • the panel 1 according to the invention has barrier properties, or reflection of microwaves, preserved or improved, while providing improved optical transparency in the visible range.
  • the metallic fabric 5 is extensible, deformable, and has an adequate stretching capacity allowing it to pass from a "rest" state to a "stretched” state. Preferably, it has a Young's modulus of between 190 and 230 GPa.
  • stretchable threads or fibers advantageously metallic, made or comprising, one or more metals, or one or more alloys of suitable metals, advantageously chosen from silver, chromium, platinum, copper, stainless steel, their alloys or a mixture thereof.
  • the metallic fibers have a warp diameter "d", and a weft diameter "d '", “d” and “d” which may be identical or different between weft and warp, spaced in warp by a distance " w “and in the weft of a distance” w '"," w “and” w' "can be identical or different between weft and warp.
  • the metallic fibers can crisscross in all the suitable weaves, for example in a canvas, twill or satin weave.
  • the metallic fabric 5 is stretched from 0.01 to 5% relative to its state of rest.
  • the tension exerted on the metallic fabric 5, for such stretching is also a function of the nature of the threads composing the metallic fabric 5, of their stretching capacity and their elasticity, and therefore of the stretching capacity and the general elasticity of the metallic fabric 5.
  • the metallic fabric 5 is stretched in at least one direction, advantageously in all directions, namely, for a metallic fabric 5 of substantially square or rectangular shape, depending on its width or weft (plane ZZ 'of the figure 1 ), its length or chain (plane XX 'of the figure 1 ), but preferably not in its thickness (plane YY 'of the figure 1 ).
  • the metallic fabric 5 is stretched, and kept stretched, in all directions of its width and its length, whatever its shape.
  • the metallic fabric 5 is stretched differently on its surface, therefore in the plane it forms, the XZ plane, for example according to a first level of stretching for one or more portions of its periphery, with a central portion not stretched or stretched according to a second level of stretching, lower than the first level of stretching. However, and preferably, it is stretched homogeneously over its entire surface from its central portion to its periphery.
  • the shape of the days, or meshes, of the metallic fabric 5 stretched in the panel 1, and their sizes or dimensions "w" and "w '", in stretched form, is chosen according to the type of microwave to be absorbed or to reflect.
  • the metallic fabric 5 has the same shape of mesh in its stretched state as in its rest state.
  • the mesh is deformed between these two states, a deformation obtained by a difference in stretch over its width and / or its length.
  • the meshes are stretched between 50 and 100%, that is to say that the meshes have dimensions "w" and / or "w '" which are one and a half or two times those of the metallic fabric 5 at rest.
  • the stretched mesh can be a rectangular or lozenge mesh, but it is preferably square, since such a mesh makes it possible to obtain a transparency of the panel 1, and therefore of the device that it includes, the most aesthetic and the most uniform.
  • the metallic fabric 5 at rest comprises square meshes of dimension dimensions "w" and "w '" between 60 to 100 ⁇ m .
  • the metallic fibers are made of stainless steel with an identical diameter "d” and “d '", between 200 and 300 ⁇ m .
  • the percentage of days varies from 35 to 50% and having a fineness between 30 and 120 mesh / inch, namely between 30 and 120 meshes per 25.4mm.
  • the metallic fabric 5 comprises square meshes ( figure 2 ), whose dimensions "w” and “w '” are between 120 and 220 ⁇ m.
  • the metallic fibers have an identical diameter “d” and “d '”, between 50 and 100 ⁇ m .
  • the tension exerted on the metallic fabric 5 to stretch it is from 10 to 25 Newtons.
  • the metallic fabric 5 according to the invention has a fineness of approximately 43 mesh / inch (43 meshes by 25.4 mm), with 46% of days, and comprising square meshes of dimension "d »In warp and" d '"in weft of about 160 ⁇ m, formed by stainless steel wires having a diameter" w "in warp and"w'"in weft of about 70 ⁇ m.
  • the metallic fabric 5, in a stretched form, is fixed, continuously or discontinuously, to the surface (s) 3, 4, using fixing means 6, an adhesive, or an adhesive, compatible with the nature of the metallic fabrics 5, of the support 2, of the final device integrating the panel 1 according to the invention and of its end use.
  • an adhesive having good resistance when subjected to high temperatures, of around 250 ° C.
  • It can be a single component silicone glue, an acetic base silicone glue or neutral base.
  • the metallic fabric 5 is fixed, preferably, on all or part of the periphery 7 of one of the surfaces 3 or 4 ( figure 1 ), preferably a few millimeters, for example 5 to 25mm, from the edges 8 of the support 2, possibly also on one or more edges 8. This has the advantage of making invisible the points or zones of bonding of the metallic fabric 5 in the final device incorporating the panel 1 according to the invention.
  • the panel 1 according to the invention is preferably used in the field of household appliances, advantageously as glazing for a domestic or professional household appliance, even more advantageously as glazing for a door of a microwave or combi oven .
  • the glazing according to the invention comprises the panel 1 according to the invention, which further comprises one or more coatings, or films, superimposed or arranged adjacent, covering all or part of the metallic fabric 5 and of the support 2, of preferably with the exception of the metallic fabric 5 protruding from the edge or edges 8 of the support 2.
  • the coatings or films have adequate dimensions and thicknesses and preferably particular properties, which are advantageously dependent on the end use of the glazing or of the device or means comprising the glazing. It can be a protective coating, preferably thermal protection, and / or anti-condensation.
  • the panel 1 may further comprise a transparent plate or sheet of the same nature, characteristics and dimensions as those forming the support 2, disposed on the metallic fabric 5, on the coating or coatings covering the metallic fabric 5 and / or on the surface 3 of the support 2.
  • the panel 1 according to the invention is preferably used as means for closing off a heat treatment enclosure, for example as the door of a microwave or combi-oven.
  • the sealing means according to the invention comprise the glazing according to the invention and a frame, in one piece or be made of an assembly of frame elements, fixed on, or surrounding the glazing, and comprising, or cooperating with, hinge means for closing the heat treatment enclosure.
  • the frame has all the shapes and dimensions adapted to the enclosure which it must seal, to the glazing and to the panel 1 according to the invention.
  • the frame is positioned at the level, preferably covers the fastening means 6 of the metallic fabric 5 on the support 2, therefore the periphery 7 of one of the surfaces 3 or 4 of the support 2, which has the advantage to make the fastening means 6 invisible.
  • the frame can also cover one or more edges of the glazing and therefore one or more edges 8 of the panel 1, optionally comprising the portion or portions of the metallic fabric 5 projecting from the support 2.
  • the frame is made, or includes, all suitable materials, compatible with its end use, in particular with its use as an oven door.
  • the frame is in electrical contact with the metallic fabric 5, at least with its portion covering the surface (s) 3, 4 and / or that projecting or covering one or more edges 8 of the support 2.
  • This electrical contact has the advantage of dissipating microwave radiation.
  • the heat treatment device comprises a cooking enclosure and the sealing means according to the invention.
  • a cooking enclosure Preferably, it is a so-called microwave oven or a mixed oven.
  • the present invention also relates to a method of producing a panel 1 according to the invention.
  • the method includes the step of taking, or making, the support 2 and the metallic fabric 5 as described above.
  • the metal fabric 5 is placed in its rest state on a table provided with stretching means, for example a table provided with jaws over its entire periphery, and the fabric is fixed in these stretching means.
  • a table provided with stretching means for example a table provided with jaws over its entire periphery
  • the metallic fabric 5 is stretched in at least one direction, preferably in all directions, namely over its length and / or its width, and maintained in a stretched state, preferably from 0.01 to 5% relative to its resting state.
  • the stretching of the metallic fabric 5 is obtained by applying a force of between 5 and 25 Newtons.
  • the method may further comprise the attachment to the metallic fabric 5 of one or more separating elements, making it possible to delimit at least one, preferably several zones of metallic fabric 5 stretched, and its cutting along the separator (s). This has the advantage of having stretched portions of metallic fabric 5 and therefore of facilitating their handling for the implementation of the other steps of the process.
  • the size and dimensions of the separator (s) depend on those of the support 2 and therefore those of the panel 1.
  • the method comprises the step of taking, or producing, a support 2 as described above, of depositing fixing means 6, on all or part of the periphery 7 of one of the surfaces 3 or 4, preferably a few millimeters of the edges 8 of the support 2, possibly also on one or more of the edges 8.
  • the application of the fastening means 6 uses a pneumatic gun, which has the advantage of gaining precision and obtaining a better homogeneity of the fixing means 6 on the surface or surfaces 3, 4.
  • the stretched metal fabric 5, or a portion of the latter, provided with its separating element or elements, is brought into contact with the support 2 provided with the means fixing 6.
  • the stretched metal fabric 5, or one of these portions is placed on the support 2.
  • pressure is exerted on the metal fabric 5, so that the means of fixation 6 penetrate into, and preferably pass through, these meshes.
  • the method further comprises a step of removing the separating element or elements from the stretched metallic fabric 5.
  • the method may further comprise a step of cutting the metallic fabric 5 projecting beyond the edges 8 of the support 2, preferably leaving a margin relative to said edges 8, which is a function of the end use of the panel according to the invention.
  • this margin will be approximately 5 to 25 mm.
  • the method of producing the glazing according to the invention comprises the step of taking, or making, the panel 1 according to the invention, preferably made according to the method described above, a step of taking, or making, one or more coatings, or films, and / or one or more plates, or sheets, transparent, of the same nature, characteristics and dimensions as those forming the support 2, a step of covering all or part of the metallic fabric 5 and / or of the support 2, so superimposed or adjacent, and / or on the surface or surfaces 3, 4 of the support 2 not covered with the metallic fabric 5, but preferably with the exception of the margin of metallic fabric 5 extending beyond the edges 8 of the support 2.
  • the application of the coating (s), films, plates or sheets can be done by any suitable method.
  • the method for producing means for closing a heat treatment enclosure comprises the step of taking or producing a glazing according to the invention, preferably manufactured according to the method described above, to take or make a one-piece frame, or made of an assembly of frame elements, and to fix the frame on the glazing, preferably at, or on the fixing means 6 metallic fabric 5 on the support 2 and / or one or more edges of the glazing.
  • the method further comprises a step of taking, or producing, means forming a hinge and of fixing them to the frame, before or after the setting of the frame on the glazing.
  • the method for producing a heat treatment device comprises the step of taking, or making a cooking chamber, preferably hermetic, or substantially hermetic, in the microwave, the step of taking, or making the means of sealing according to the invention, preferably made using the method described above, and a step of connecting the sealing means to the enclosure.

Abstract

La présente invention se rapporte à un panneau (1), pour vitrage comprenant un support (2) rigide, sensiblement transparent au rayonnement dans le domaine du visible, et comprenant au moins une surface (3, 4), comprenant une périphérie (7), et un ou plusieurs bords (8), ladite au moins une surface (3, 4) est recouverte d'un tissu métallique (5) dans un état « étiré », à un vitrage comprenant un tel panneau (1), sur des moyens d'obturation d'une enceinte de traitement thermique comportant un tel vitrage, à un dispositif traitement thermique utilisant des micro-ondes comprenant de tels moyens, ainsi qu'à des méthodes de réalisation du panneau (1), du vitrage, des moyens d'obturation et du dispositif de traitement thermique.

Figure imgaf001
The present invention relates to a panel (1), for glazing comprising a rigid support (2), substantially transparent to radiation in the visible range, and comprising at least one surface (3, 4), comprising a periphery (7) , and one or more edges (8), said at least one surface (3, 4) is covered with a metallic fabric (5) in a "stretched" state, with glazing comprising such a panel (1), on means for closing off a heat treatment enclosure comprising such a glazing, a heat treatment device using microwaves comprising such means, as well as methods for producing the panel (1), glazing, means shutter and heat treatment device.
Figure imgaf001

Description

Objet de l'inventionSubject of the invention

La présente invention a trait à un panneau absorbant et/ou réfléchissant les microondes, à un vitrage, de préférence pour un four utilisant des microondes, comprenant un tel panneau, et à une méthode d'obtention d'un tel panneau et d'un tel vitrage.The present invention relates to a panel absorbing and / or reflecting microwaves, a glazing, preferably for an oven using microwaves, comprising such a panel, and a method for obtaining such a panel and a such glazing.

Etat de la techniqueState of the art

Les micro-ondes sont des rayonnements électromagnétiques, utilisées dans l'industrie dans de nombreux domaines techniques. Ils sont également mis en oeuvre quotidiennement par des professionnels ou des particuliers, dans le domaine des appareils électroménagers, et plus particulièrement des appareils de traitement thermique, comme des fours.Microwaves are electromagnetic radiation, used in industry in many technical fields. They are also used daily by professionals or individuals, in the field of household appliances, and more particularly heat treatment devices, such as ovens.

Ils existe des fours communément appelés « microondes », car utilisant uniquement le rayonnement micro-onde pour le chauffage et la cuisson rapide d'aliments, et des fours dits « mixtes », car utilisant les micro-ondes et une ou plusieurs autres sources de production de chaleur, comme par exemple une résistance électrique ou une source infrarouge, en opposition aux fours dits « traditionnels » n'employant qu'un seul type de source de chaleur, comme par exemple du gaz ou de l'électricité.There are ovens commonly known as “microwaves” because they only use microwave radiation for heating and rapid cooking of food, and so-called “combi” ovens because they use microwaves and one or more other sources of production of heat, such as for example an electrical resistance or an infrared source, as opposed to so-called “traditional” ovens using only one type of heat source, such as for example gas or electricity.

Les fours, mettant en oeuvre des micro-ondes, comprennent généralement une enceinte de cuisson, qui confine les rayonnements, et des moyens d'obturation d'une ouverture par laquelle les produits à traiter thermiquement sont enfournés, qui comprennent, ou sont, habituellement une porte, apte à limiter voir empêcher la fuite des micro-ondes hors de l'enceinte. Généralement, la porte comprend un vitrage peu ou pas transparent aux micro-ondes par l'emploi d'un blindage.The ovens, using microwaves, generally comprise a cooking enclosure, which confines the radiations, and means for closing an opening by which the products to be heat treated are placed in the oven, which include, or are usually a door, capable of limiting or even preventing the escape of microwaves out of the enclosure. Generally, the door includes glazing that is little or not transparent to microwaves by the use of shielding.

Classiquement, les moyens de blindage des vitrages comprennent ou sont constitués d'un réseau de conducteurs formant un maillage, qui présente l'avantage de conserver une certaine transparence optique, dans le domaine du visible, et une certaine opacité aux micro-ondes. La taille des mailles d'un tel réseau est généralement comprise entre 1 et 2 mm, ce qui représente 10% de la longueur d'onde des micro-ondes utilisés dans un four, qui possèdent une longueur d'onde de 12 cm pour une fréquence généralement fixée à 2,5 GHz dans la plupart des fours. Cela permet de réfléchir environ 90% des micro-ondes générées dans l'enceinte du four.Conventionally, the means for shielding glazing units comprise or consist of a network of conductors forming a mesh, which has the advantage of retaining a certain optical transparency, in the visible range, and a certain opacity in the microwave. The mesh size of such a network is generally between 1 and 2 mm, which represents 10% of the wavelength of microwaves used in an oven, which have a wavelength of 12 cm for a frequency generally fixed at 2.5 GHz in the most ovens. This allows about 90% of the microwaves generated in the oven to be reflected.

Généralement, le réseau de conducteur est, ou comprend une grille métallique.Generally, the conductor network is, or includes a metal grid.

Par exemple, le document DE3714122 décrit une porte de four micro-ondes comprenant une grille métallique de blindage, fixée à la partie métallique du cadre de la porte à l'aide d'émail ou de peinture.For example, the document DE3714122 describes a microwave oven door comprising a metal shielding grid, fixed to the metal part of the door frame using enamel or paint.

Le document FR2484397 décrit un verre de sécurité pour four micro-ondes comprenant un support en verre sur lequel est appliqué un réseau conducteur, formé par un grillage métallique, recouvert d'une couche d'émail de protection transparente ou colorée revêtus de couches conductrices d'électricité et transparentes du point de vue optique.The document FR2484397 describes a safety glass for a microwave oven comprising a glass support to which a conductive network is applied, formed by a metallic mesh, covered with a transparent or colored protective enamel layer coated with electrically conductive layers and optically transparent.

Le document DE202008010620U décrit une porte de four à micro-ondes comprenant un tissu métallique disposé entre une vitre extérieure et une vitre interne, l'espace étant jointé à l'aide de silicone.The document DE202008010620U describes a microwave oven door comprising a metallic fabric disposed between an external window and an internal window, the space being joined using silicone.

Même si le vitrage est sensiblement transparent aux rayons dans le domaine du visible, cette transparence est fortement réduite par la présence du blindage anti micro-ondes, à savoir la grille métallique, et il est très difficile, pour l'usager, de pouvoir voir aisément l'intérieur de l'enceinte du four. Par ailleurs, non seulement un tel vitrage présente un aspect parfaitement inesthétique, il confère également au four, qui comprend un tel vitrage, une connotation « four micro-ondes », qui peut s'avérer être négative pour certains utilisateurs, surtout s'agissant de fours mixtes.Even if the glazing is substantially transparent to rays in the visible range, this transparency is greatly reduced by the presence of the anti-microwave shielding, namely the metal grid, and it is very difficult for the user to be able to see easily inside the oven enclosure. Furthermore, not only does such glazing have a perfectly unsightly appearance, it also gives the oven, which includes such glazing, a connotation of "microwave oven", which may prove to be negative for certain users, especially with regard to mixed ovens.

Buts de l'inventionAims of the invention

La présente invention vise à fournir un panneau absorbant et/ou réfléchissant les micro-ondes, un vitrage comprenant un tel panneau, et une méthode de fabrication d'un tel panneau et vitrage, qui ne présentent pas les inconvénients de l'état de la technique.The present invention aims to provide a panel absorbing and / or reflecting microwaves, glazing comprising such a panel, and a method of manufacturing such a panel and glazing, which do not have the drawbacks of the state of the technical.

La présente invention vise à fournir une alternative aux solutions de l'état de la technique existantes.The present invention aims to provide an alternative to the solutions of the existing state of the art.

La présente invention vise à fournir un panneau absorbant et/ou réfléchissant les micro-ondes et un vitrage comprenant un tel panneau, dont le rendu esthétique final est amélioré.The present invention aims to provide a panel absorbing and / or reflecting microwaves and glazing comprising such a panel, the final aesthetic rendering of which is improved.

La présente invention vise également à fournir une méthode de fabrication d'un panneau et d'un vitrage, en particulier pour fours, qui soit rapide et aisée à mettre en oeuvre.The present invention also aims to provide a method of manufacturing a panel and glazing, in particular for ovens, which is quick and easy to implement.

Résumé de l'inventionSummary of the invention

La présente invention porte sur un panneau pour vitrage comprenant un support rigide, sensiblement transparent au rayonnement dans le domaine du visible, et comprenant au moins une surface, comprenant une périphérie, et un ou plusieurs bords, dans lequel au moins une surface est recouverte d'un tissu métallique sous une forme « étiré ».The present invention relates to a glazing panel comprising a rigid support, substantially transparent to radiation in the visible range, and comprising at least one surface, comprising a periphery, and one or more edges, in which at least one surface is covered with 'a metallic fabric in a "stretched" form.

Selon des modes préférés de l'invention, le panneau selon l'invention comprend au moins une, ou une combinaison quelconque appropriée, des caractéristiques suivantes :

  • le tissu métallique, dans son état « étiré », comprend un pourcentage d'étirement, dans la direction de trame et/ou de chaine, compris entre 0,01 à 5% par rapport à son état de « repos »,
  • le tissu métallique est dans un état « étiré » sous une tension comprise entre 5 et 25 Newtons,
  • le tissu métallique est fixé, à l'aide de moyens de fixation, sur tout ou partie de la périphérie d'au moins une surface du support,
  • le tissu métallique (5) étiré comprend des mailles carrées dont la distance de chaine « w » et/ou la distance de trame de « w' » est comprise entre 120 et 220 µm,
According to preferred embodiments of the invention, the panel according to the invention comprises at least one, or any suitable combination, of the following characteristics:
  • the metallic fabric, in its "stretched" state, comprises a percentage of stretching, in the weft and / or warp direction, of between 0.01 to 5% relative to its "rest" state,
  • the metallic fabric is in a “stretched” state under a tension of between 5 and 25 Newtons,
  • the metallic fabric is fixed, using fixing means, on all or part of the periphery of at least one surface of the support,
  • the stretched metallic fabric (5) comprises square meshes of which the warp distance "w" and / or the weft distance of "w '" is between 120 and 220 μm ,

La présente invention porte aussi sur un vitrage comprenant au moins un panneau selon l'invention et un ou plusieurs revêtements, et/ou une ou plusieurs plaques de même nature et/ou caractéristiques et/ou dimension que celle(s) du support.The present invention also relates to a glazing unit comprising at least one panel according to the invention and one or more coatings, and / or one or more plates of the same nature and / or characteristics and / or dimension as that (s) of the support.

La présente invention porte, de plus, sur des moyens d'obturation d'une enceinte de traitement thermique comprenant le vitrage selon l'invention, et un cadre, fixé sur et/ou entourant le vitrage, et comprenant, ou coopérant avec, des moyens formant charnière permettant l'obturation de l'enceinte de traitement thermique. De préférence, le cadre est en contact électrique avec le tissu métallique.The present invention further relates to means for closing a heat treatment enclosure comprising the glazing according to the invention, and a frame, fixed on and / or surrounding the glazing, and comprising, or cooperating with, hinge means for closing the heat treatment enclosure. Preferably, the frame is in electrical contact with the metallic fabric.

La présente invention porte, en outre, sur un dispositif de traitement thermique utilisant des micro-ondes comprenant une enceinte de traitement thermique et les moyens d'obturation selon l'invention.The present invention further relates to a heat treatment device using microwaves comprising a heat treatment enclosure and the sealing means according to the invention.

La présente invention porte aussi sur une méthode de réalisation d'un panneau selon l'invention, comprenant les étapes de prendre un support rigide sensiblement transparent au rayonnement dans le domaine du visible, et comprenant au moins une surface, une périphérie, et un ou plusieurs bords, de prendre un tissu métallique et l'étirer pour le faire passer d'un état de « repos » à un état « étiré », de fixer, à l'aide de moyens de fixation, le tissu métallique étiré, et le maintenir étiré, sur la surface.The present invention also relates to a method for producing a panel according to the invention, comprising the steps of taking a rigid support substantially transparent to radiation in the visible range, and comprising at least one surface, a periphery, and one or more several edges, to take a metallic fabric and stretch it to make it pass from a state of "rest" to a "stretched" state, to fix, by means of fixing, the stretched metallic fabric, and the keep stretched, on the surface.

Selon des modes préférés de l'invention, la méthode de réalisation du panneau selon l'invention comprend au moins une, ou une combinaison quelconque appropriée, des caractéristiques suivantes :

  • l'étirement du tissu métallique se fait dans la direction de trame et/ou de chaine, et est compris entre 0,01 à 5% par rapport à un état de « repos »,
  • la méthode comprend en outre une étape de fixer, sur le tissu métallique, un ou plusieurs éléments séparateurs délimitant une pluralité de zones de tissu métallique étiré, et une étape de découpage du tissu métallique étiré, le long des séparateurs.
According to preferred embodiments of the invention, the method of producing the panel according to the invention comprises at least one, or any suitable combination, of the following characteristics:
  • the stretching of the metallic fabric is done in the weft and / or warp direction, and is between 0.01 to 5% relative to a "rest" state,
  • the method further comprises a step of fixing, on the metallic fabric, one or more separating elements delimiting a plurality of zones of drawn metallic fabric, and a step of cutting out the stretched metallic fabric, along the separators.

La présente invention porte également sur une méthode de réalisation d'un vitrage selon l'invention, comprenant les étapes de prendre un panneau, réalisé en mettant en ouvre la méthode de réalisation du panneau selon l'invention, de prendre un ou plusieurs revêtements, et/ou un ou plusieurs revêtements, et/ou une ou plusieurs plaques de même nature et/ou caractéristiques et/ou dimension que celle(s) du support, de recouvrir tout ou partie du tissu métallique et/ou du support non recouvert du tissu métallique.The present invention also relates to a method of producing a glazing according to the invention, comprising the steps of taking a panel, produced by implementing the method of producing the panel according to the invention, of taking one or more coatings, and / or one or more coatings, and / or one or more plates of the same nature and / or characteristics and / or dimension as that (s) of the support, to cover all or part of the metallic fabric and / or of the support not covered with the metallic fabric.

La présente invention porte, de plus, sur une méthode de réalisation de moyens d'obturation, d'une enceinte de traitement thermique, selon l'invention, comprenant les étapes de prendre un vitrage, réalisé en mettant en ouvre la méthode de réalisation d'un vitrage selon l'invention, prendre un cadre, le fixer sur le vitrage, au niveau des, ou sur les, moyens de fixation du tissus métallique sur le support et/ou sur un ou plusieurs bords du support.The present invention also relates to a method of producing sealing means, a heat treatment enclosure, according to the invention, comprising the steps of taking a glazing, produced by implementing the method of producing a glazing according to the invention, taking a frame, fixing it on the glazing, at the level of, or on, the means for fixing the metallic fabric on the support and / or on one or more edges of the support.

La présente invention porte aussi sur une méthode de réalisation d'un dispositif de traitement thermique utilisant des micro-ondes comprenant les étapes de prendre enceinte de cuisson, de prendre les moyens d'obturation, réalisés en mettant en ouvre la méthode de réalisation des moyens d'obturation selon l'invention, et de connecter les moyens d'obturation à l'enceinte.The present invention also relates to a method for producing a heat treatment device using microwaves comprising the steps of taking the cooking chamber, of taking the sealing means, produced by implementing the method of producing the means. shutter according to the invention, and connecting the shutter means to the enclosure.

Brève description des figuresBrief description of the figures

  • La figure 1 est une représentation schématique d'une vue de coté d'un panneau selon l'invention.The figure 1 is a schematic representation of a side view of a panel according to the invention.
  • La figure 2 est une représentation schématique d'une vue de dessus d'un mode de réalisation particulier du tissu métallique, sous forme étiré, selon l'invention.The figure 2 is a schematic representation of a top view of a particular embodiment of the metallic fabric, in stretched form, according to the invention.
Description détaillée de l'inventionDetailed description of the invention

Dans la suite de la description et des revendications, le terme « longueur » est utilisé pour décrire la plus grande des mesures d'un coté d'une forme géométrique quelconque, par exemple le grand rayon d'un ellipsoïde ou d'une ellipse, la base ou la hauteur d'un triangle, la longueur d'un trapézoïde ou d'un rectangle. Le terme « largeur » est utilisé pour décrire la plus petite des mesures, par exemple le petit rayon d'un ellipsoïde ou d'une ellipse, la base ou la hauteur d'un triangle, la largeur d'un trapézoïde ou d'un rectangle, et les termes « longueur » et « largeur » peuvent être utilisés indifféremment, par exemple pour désigner la mesure du rayon d'un disque, le coté d'un carré.In the remainder of the description and of the claims, the term "length" is used to describe the largest of the measurements on one side of any geometric shape, for example the large radius of an ellipsoid or of an ellipse, the base or height of a triangle, the length of a trapezoid or rectangle. The term "width" is used to describe the smallest of the measures, for example the small radius of an ellipsoid or ellipse, the base or height of a triangle, the width of a trapezoid or a rectangle, and the terms "length" and "width" can be used interchangeably, for example to denote the measurement of the radius of a disc, the side of a square.

Le panneau 1 selon l'invention comprend un support 2, qui est rigide, sensiblement inflexible. Il présente une résistance mécanique, à des sollicitations de flexion et/ou de torsion, suffisante pour ne pas se déformer sous l'action d'une force de flexion et/ou de torsion. Le support 2 est sensiblement plan, et comprend au moins une première surface 3, continue et sensiblement plane, de préférence une seconde surface 4, continue et sensiblement plane, opposée à ladite première surface 3 (figure 1).The panel 1 according to the invention comprises a support 2, which is rigid, substantially inflexible. It has a mechanical resistance to bending and / or torsional stresses, sufficient not to deform under the action of a bending and / or torsional force. The support 2 is substantially planar, and comprises at least a first surface 3, continuous and substantially planar, preferably a second surface 4, continuous and substantially planar, opposite said first surface 3 ( figure 1 ).

Le support 2 a une forme, une épaisseur et des dimensions adéquates et adaptées, ou compatibles, avec l'utilisation finale du panneau 1, ou des éléments qui comprennent un tel panneau 1.The support 2 has a shape, a thickness and dimensions which are adequate and suitable, or compatible, with the end use of the panel 1, or of the elements which comprise such a panel 1.

De préférence, le support 2 a une section transversale, donc dans le plan formé par la surface 2 ou la surface 3, dans le plan X-Z, de forme circulaire, elliptique, polygonale, trapézoïdale ou bien d'un quadrilatère, avantageusement une section losange, carrée ou rectangulaire. De préférence, le support 2 a une section longitudinale, donc dans le plan X-Y, et/ou une section transversale, donc dans le plan Y-Z, perpendiculaires au plan formé par la surface 2 ou la surface 3, circulaire, elliptique ou polygonale, trapézoïdale ou bien d'un quadrilatère, avantageusement une section carrée ou rectangulaire, d'un trapèze ou d'un trapèze rectangle.Preferably, the support 2 has a cross section, therefore in the plane formed by the surface 2 or the surface 3, in the XZ plane, of circular, elliptical, polygonal, trapezoidal shape or else of a quadrilateral, advantageously a diamond section , square or rectangular. Preferably, the support 2 has a longitudinal section, therefore in the XY plane, and / or a cross section, therefore in the YZ plane, perpendicular to the plane formed by the surface 2 or the surface 3, circular, elliptical or polygonal, trapezoidal or else a quadrilateral, advantageously a square or rectangular section, a trapezoid or a rectangular trapezoid.

Le support 2 est fait d'un matériau inerte, de préférence au moins inerte thermiquement, avantageusement également inerte physiquement et chimiquement au(x) matériau(x) dont l'une ou les deux de ces surfaces 2 et 3 est/sont recouverte(s) ou en contact.The support 2 is made of an inert material, preferably at least thermally inert, advantageously also physically and chemically inert to the material (s) with one or both of these surfaces 2 and 3 is / are covered ( s) or in contact.

Le support 2 est de préférence transparent, ou bien partiellement transparent, optiquement dans le domaine du visible, dans son épaisseur et/ou sa largeur et/ou sa longueur. Il peut être sablé et/ou sérigraphié et/ou coloré sur une partie de l'une ou des deux surfaces 3 et 4.The support 2 is preferably transparent, or else partially transparent, optically in the visible range, in its thickness and / or its width and / or its length. It can be sandblasted and / or screen-printed and / or colored on part of one or both of the surfaces 3 and 4.

De préférence, le support 2 est fait de, ou comprend du plastique, du verre, une matière cristalline ou semi-cristalline, une céramique ou une vitrocéramique.Preferably, the support 2 is made of, or comprises plastic, glass, a crystalline or semi-crystalline material, a ceramic or a glass-ceramic.

Dans un mode de réalisation préféré de l'invention, le support 2 est du verre, de préférence, un verre sodocalcique transparent ou teinté dans la masse, éventuellement à couches diverses, telles que anti-bactériennes, anti-réfléchissantes, par exemple du type connu sous la marque Matelux®, chromées, à faible émissivité, par exemple du type connu sous le nom de Planibel Clear ou de Planibel low-E IsoComfort, commercialisé par la société AGC, ou un borosilicate par exemple connu sous la marque Borofloat® 33. De préférence, le verre est à forte teneur en SiO2, une teneur avantageusement comprise entre 69 % et 81 % en poids et avec une transmission lumineuse pouvant aller jusqu'à 90 %. Le verre peut avoir éventuellement préalablement subi un traitement thermique du type durcissement, recuit, trempe, bombage.In a preferred embodiment of the invention, the support 2 is glass, preferably a transparent or mass-colored soda-lime glass, possibly with various layers, such as anti-bacterial, anti-reflective, for example of the type known under the brand Matelux®, chrome-plated, with low emissivity, for example of the type known under the name of Planibel Clear or of Planibel low-E IsoComfort, marketed by the company AGC, or a borosilicate for example known under the brand Borofloat® 33 Preferably, the glass has a high SiO 2 content, a content advantageously between 69% and 81% by weight. and with a light transmission of up to 90%. The glass may possibly have previously undergone a heat treatment of the hardening, annealing, tempering, bending type.

Le panneau 1 selon l'invention comprend des moyens de blindage anti micro-ondes comprenant un tissu métallique 5, fixé sur tout ou partie d'une des surfaces 3 ou 4, de préférence sur les deux surfaces 3 et 4 du support 2, le tissu métallique 5 étant sous forme contraint, de préférence sous forme tendu. Eventuellement, le tissu métallique 5 peut dépasser d'un ou des bords 8 du support 2, et également le ou les recouvrir, néanmoins de préférence sous forme non tendu, donc à l'état de repos.The panel 1 according to the invention comprises anti-microwave shielding means comprising a metallic fabric 5, fixed on all or part of one of the surfaces 3 or 4, preferably on the two surfaces 3 and 4 of the support 2, the metallic fabric 5 being in constrained form, preferably in stretched form. Optionally, the metallic fabric 5 can protrude from one or more edges 8 of the support 2, and also the cover (s), however preferably in a non-stretched form, therefore in the rest state.

Ainsi, le panneau 1 selon l'invention possède des propriétés barrières, ou de réflexion des micro-ondes, préservées ou améliorées, tout en procurant une transparence optique dans le domaine du visible, améliorée.Thus, the panel 1 according to the invention has barrier properties, or reflection of microwaves, preserved or improved, while providing improved optical transparency in the visible range.

Le tissu métallique 5 est extensible, déformable, et présente une capacité d'étirement adéquate lui permettant de passer d'un état de « repos » à un état « étiré ». De préférence, il possède un module de Young compris entre 190 et 230 GPa.The metallic fabric 5 is extensible, deformable, and has an adequate stretching capacity allowing it to pass from a "rest" state to a "stretched" state. Preferably, it has a Young's modulus of between 190 and 230 GPa.

De préférence, il est fait, ou comprend, des fils ou fibres étirables, avantageusement métalliques, faits ou comprenant, un ou plusieurs métaux, ou un ou plusieurs alliages de métaux adéquats, avantageusement choisis parmi l'argent, le chrome, le platine, le cuivre, l'acier inoxydable, leur alliages ou un mélange de ceux-ci.Preferably, it is made, or comprises, stretchable threads or fibers, advantageously metallic, made or comprising, one or more metals, or one or more alloys of suitable metals, advantageously chosen from silver, chromium, platinum, copper, stainless steel, their alloys or a mixture thereof.

Les fibres métalliques ont un diamètre en chaine « d », et d'un diamètre en trame « d' », « d » et « d'» pouvant être identiques ou différents entre trame et chaine, espacés en chaine d'une distance « w » et en trame d'une distance « w' », « w » et « w' » pouvant être identiques ou différents entre trame et chaine.The metallic fibers have a warp diameter "d", and a weft diameter "d '", "d" and "d" which may be identical or different between weft and warp, spaced in warp by a distance " w "and in the weft of a distance" w '"," w "and" w' "can be identical or different between weft and warp.

Les fibres métalliques peuvent s'entrecroisés selon toutes les armures adéquates, par exemple selon une armure toile, sergé ou satin.The metallic fibers can crisscross in all the suitable weaves, for example in a canvas, twill or satin weave.

De préférence, dans le panneau 1, le tissu métallique 5 est étiré de 0,01 à 5% par rapport à son état de repos. La tension exercée sur le tissu métallique 5, pour de tels étirements, est également fonction de la nature des fils composants le tissu métallique 5, de leur capacité d'étirement et de leur élasticité, et donc de la capacité d'étirement et l'élasticité générale du tissu métallique 5.Preferably, in the panel 1, the metallic fabric 5 is stretched from 0.01 to 5% relative to its state of rest. The tension exerted on the metallic fabric 5, for such stretching, is also a function of the nature of the threads composing the metallic fabric 5, of their stretching capacity and their elasticity, and therefore of the stretching capacity and the general elasticity of the metallic fabric 5.

De préférence, il est étiré dans au moins une direction, avantageusement dans toutes les directions, à savoir, pour un tissu métallique 5 de forme sensiblement carrée ou rectangulaire, selon sa largeur ou trame (plan Z-Z' de la figure 1), sa longueur ou chaine (plan X-X' de la figure 1), mais de préférence pas dans son épaisseur (plan Y-Y' de la figure 1). Comme il peut adopter des formes identiques ou compatibles avec celles du panneau 1, le tissu métallique 5 est étiré, et maintenu tendu, dans toutes les directions de sa largeur et de sa longueur, quelque soit sa forme.Preferably, it is stretched in at least one direction, advantageously in all directions, namely, for a metallic fabric 5 of substantially square or rectangular shape, depending on its width or weft (plane ZZ 'of the figure 1 ), its length or chain (plane XX 'of the figure 1 ), but preferably not in its thickness (plane YY 'of the figure 1 ). As it can adopt identical or compatible shapes with those of the panel 1, the metallic fabric 5 is stretched, and kept stretched, in all directions of its width and its length, whatever its shape.

Il est possible de prévoir que le tissu métallique 5 soit étiré différemment sur sa surface, donc dans le plan qu'il forme, le plan X-Z, par exemple selon un premier niveau d'étirement pour une ou plusieurs portions de sa périphérie, avec une portion centrale non étirée ou étirée selon un second niveau d'étirement, inférieur au premier niveau d'étirement. Toutefois, et de préférence, il est étiré de façon homogène sur toute sa surface de sa portion centrale à sa périphérie.It is possible to provide for the metallic fabric 5 to be stretched differently on its surface, therefore in the plane it forms, the XZ plane, for example according to a first level of stretching for one or more portions of its periphery, with a central portion not stretched or stretched according to a second level of stretching, lower than the first level of stretching. However, and preferably, it is stretched homogeneously over its entire surface from its central portion to its periphery.

La forme des jours, ou mailles, du tissu métallique 5 étiré dans le panneau 1, et leurs tailles ou dimensions « w » et « w' », sous forme tendue, est choisie en fonction du type de micro-ondes à absorber ou à réfléchir. De préférence, le tissu métallique 5 a la même forme de maille dans son état étiré que dans son état de repos. Toutefois, il est possible d'envisager que la maille soit déformée entre ces deux états, une déformation obtenue par une différence d'étirement sur sa largeur et/ou sa longueur.The shape of the days, or meshes, of the metallic fabric 5 stretched in the panel 1, and their sizes or dimensions "w" and "w '", in stretched form, is chosen according to the type of microwave to be absorbed or to reflect. Preferably, the metallic fabric 5 has the same shape of mesh in its stretched state as in its rest state. However, it is possible to envisage that the mesh is deformed between these two states, a deformation obtained by a difference in stretch over its width and / or its length.

De préférence, les mailles sont étirées entre 50 et 100%, c'est-à-dire que les mailles ont des dimensions « w » et/ou « w' » qui sont une fois et demi ou deux fois celles du tissu métallique 5 au repos.Preferably, the meshes are stretched between 50 and 100%, that is to say that the meshes have dimensions "w" and / or "w '" which are one and a half or two times those of the metallic fabric 5 at rest.

La maille étirée peut être une maille rectangulaire ou losangée, mais elle est de préférence carrée, car une telle maille permet d'obtenir une transparence du panneau 1, et donc du dispositif que le comprend, la plus esthétique et la plus uniforme.The stretched mesh can be a rectangular or lozenge mesh, but it is preferably square, since such a mesh makes it possible to obtain a transparency of the panel 1, and therefore of the device that it includes, the most aesthetic and the most uniform.

De préférence, le tissu métallique 5 au repos comprend des mailles carrées de dimension dimensions « w » et « w' » comprises entre 60 à 100 µm. De préférence, les fibres métalliques sont en acier inoxydable d'un diamètre « d » et « d' » identique, compris entre 200 et 300 µm. De préférence, le pourcentage de jour varie de 35 à 50% et ayant une finesse comprise entre 30 et 120 mesh/pouce, à savoir entre 30 et 120 mailles par 25,4mm. Etiré, le tissu métallique 5 comprend des mailles carrées (figure 2), dont les dimensions « w » et « w' » sont comprises entre 120 à 220 µm. De préférence, les fibres métalliques ont un diamètre « d » et « d' » identique, compris entre 50 et 100 µm.Preferably, the metallic fabric 5 at rest comprises square meshes of dimension dimensions "w" and "w '" between 60 to 100 μm . Preferably, the metallic fibers are made of stainless steel with an identical diameter "d" and "d '", between 200 and 300 μm . Preferably, the percentage of days varies from 35 to 50% and having a fineness between 30 and 120 mesh / inch, namely between 30 and 120 meshes per 25.4mm. Stretched, the metallic fabric 5 comprises square meshes ( figure 2 ), whose dimensions "w" and "w '" are between 120 and 220 µ m. Preferably, the metallic fibers have an identical diameter “d” and “d '”, between 50 and 100 μm .

De préférence, la tension exercée sur le tissu métallique 5 pour l'étirer est de 10 à 25 Newtons.Preferably, the tension exerted on the metallic fabric 5 to stretch it is from 10 to 25 Newtons.

A titre d'exemple, le tissu métallique 5 selon l'invention a une finesse d'environ 43 mesh/pouce (43 mailles par 25,4mm), avec 46% de jours, et comprenant des mailles carrées d'une dimension « d » en chaine et « d' » en trame d'environ 160 µm, formées par des fils d'acier inoxydable ayant un diamètre « w » en chaine et « w' » en trame d'environ 70 µm.By way of example, the metallic fabric 5 according to the invention has a fineness of approximately 43 mesh / inch (43 meshes by 25.4 mm), with 46% of days, and comprising square meshes of dimension "d »In warp and" d '"in weft of about 160 µ m, formed by stainless steel wires having a diameter" w "in warp and"w'"in weft of about 70 µ m.

Le tissu métallique 5, sous une forme tendue, est fixé, de façon continue ou discontinue, sur la ou les surfaces 3, 4, à l'aide de moyens de fixation 6, un adhésif, ou une colle, compatible avec la nature du tissus métallique 5, du support 2, du dispositif final intégrant le panneau 1 selon l'invention et de son utilisation finale. De préférence, il s'agit d'une colle ayant une bonne tenue lorsqu'il est soumis à de hautes températures, d'environ 250°C. Il peut s'agir d'une colle silicone mono composante, une colle silicone base acétique ou base neutre.The metallic fabric 5, in a stretched form, is fixed, continuously or discontinuously, to the surface (s) 3, 4, using fixing means 6, an adhesive, or an adhesive, compatible with the nature of the metallic fabrics 5, of the support 2, of the final device integrating the panel 1 according to the invention and of its end use. Preferably, it is an adhesive having good resistance when subjected to high temperatures, of around 250 ° C. It can be a single component silicone glue, an acetic base silicone glue or neutral base.

Le tissu métallique 5 est fixé, de préférence, sur tout ou partie de la périphérie 7 d'une des surfaces 3 ou 4 (figure 1), de préférence à quelques millimètres, par exemple 5 à 25mm, du bords 8 du support 2, éventuellement également sur un ou plusieurs bords 8. Cela présente l'avantage de rendre invisible les points ou zones de collage du tissu métallique 5 dans le dispositif final intégrant le panneau 1 selon l'invention.The metallic fabric 5 is fixed, preferably, on all or part of the periphery 7 of one of the surfaces 3 or 4 ( figure 1 ), preferably a few millimeters, for example 5 to 25mm, from the edges 8 of the support 2, possibly also on one or more edges 8. This has the advantage of making invisible the points or zones of bonding of the metallic fabric 5 in the final device incorporating the panel 1 according to the invention.

Le panneau 1 selon l'invention est utilisé, de préférence, dans le domaine des appareils électroménagers, avantageusement comme vitrage d'un appareil électroménager domestiques ou professionnels, encore plus avantageusement comme vitrage d'une porte d'un four micro-ondes ou mixte.The panel 1 according to the invention is preferably used in the field of household appliances, advantageously as glazing for a domestic or professional household appliance, even more advantageously as glazing for a door of a microwave or combi oven .

Le vitrage selon l'invention comprend le panneau 1 selon l'invention, qui comprend en outre un ou plusieurs revêtements, ou films, superposés ou disposés adjacents, recouvrant tout ou partie du tissu métallique 5 et du support 2, de préférence à l'exception du tissu métallique 5 dépassant du ou des bords 8 du support 2. Les revêtements ou films ont des dimensions et des épaisseurs adéquates et de préférence des propriétés particulières, qui sont avantageusement fonction de l'utilisation finale du vitrage ou du dispositif ou des moyens comprenant le vitrage. Il peut s'agir d'un revêtement de protection, de préférence de protection thermique, et/ou d'anti-condensation. Le panneau 1 peut comprendre en outre une plaque, ou feuille, transparente, de même nature, caractéristiques et dimensions que celles formant le support 2, disposé sur le tissu métallique 5, sur le ou les revêtements recouvrant le tissu métallique 5 et/ou sur la surface 3 du support 2.The glazing according to the invention comprises the panel 1 according to the invention, which further comprises one or more coatings, or films, superimposed or arranged adjacent, covering all or part of the metallic fabric 5 and of the support 2, of preferably with the exception of the metallic fabric 5 protruding from the edge or edges 8 of the support 2. The coatings or films have adequate dimensions and thicknesses and preferably particular properties, which are advantageously dependent on the end use of the glazing or of the device or means comprising the glazing. It can be a protective coating, preferably thermal protection, and / or anti-condensation. The panel 1 may further comprise a transparent plate or sheet of the same nature, characteristics and dimensions as those forming the support 2, disposed on the metallic fabric 5, on the coating or coatings covering the metallic fabric 5 and / or on the surface 3 of the support 2.

Le panneau 1 selon l'invention est utilisé, de préférence, comme moyens d'obturation d'une enceinte de traitement thermique, par exemple comme porte d'un four micro-ondes ou mixte.The panel 1 according to the invention is preferably used as means for closing off a heat treatment enclosure, for example as the door of a microwave or combi-oven.

Les moyens d'obturation selon l'invention comprennent le vitrage selon l'invention et un cadre, monobloc ou être fait d'un assemblage d'éléments de cadre, fixé sur, ou entourant le vitrage, et comprenant, ou coopérant avec, des moyens formant charnière permettant l'obturation de l'enceinte de traitement thermique. Le cadre a toutes les formes et dimensions adaptées à l'enceinte qu'il doit obturer, au vitrage et au panneau 1 selon l'invention.The sealing means according to the invention comprise the glazing according to the invention and a frame, in one piece or be made of an assembly of frame elements, fixed on, or surrounding the glazing, and comprising, or cooperating with, hinge means for closing the heat treatment enclosure. The frame has all the shapes and dimensions adapted to the enclosure which it must seal, to the glazing and to the panel 1 according to the invention.

De préférence, le cadre est positionné au niveau, de préférence, recouvre les moyens de fixation 6 du tissus métallique 5 sur le support 2, donc la périphérie 7 d'une des surfaces 3 ou 4 du support 2, ce qui présente l'avantage de rendre les moyens de fixation 6 invisibles. Le cadre peut également recouvrir un ou plusieurs bords du vitrage et donc un ou plusieurs bords 8 du panneau 1, comprenant éventuellement la ou les portions du tissus métallique 5 dépassant du support 2.Preferably, the frame is positioned at the level, preferably covers the fastening means 6 of the metallic fabric 5 on the support 2, therefore the periphery 7 of one of the surfaces 3 or 4 of the support 2, which has the advantage to make the fastening means 6 invisible. The frame can also cover one or more edges of the glazing and therefore one or more edges 8 of the panel 1, optionally comprising the portion or portions of the metallic fabric 5 projecting from the support 2.

Le cadre est fait, ou comprend, tous matériaux adéquats, compatibles avec son utilisation finale, en particulier avec son utilisation comme porte de fours.The frame is made, or includes, all suitable materials, compatible with its end use, in particular with its use as an oven door.

De préférence, le cadre est en contact électrique avec le tissu métallique 5, au moins avec sa portion recouvrant la ou les surface 3, 4 et/ou celle dépassant ou recouvrant un ou plusieurs bords 8 du support 2. Ce contact électrique présente l'avantage de dissiper le rayonnement micro-ondes.Preferably, the frame is in electrical contact with the metallic fabric 5, at least with its portion covering the surface (s) 3, 4 and / or that projecting or covering one or more edges 8 of the support 2. This electrical contact has the advantage of dissipating microwave radiation.

Le dispositif de traitement thermique selon l'invention comprend une enceinte de cuisson et les moyens d'obturation selon l'invention. De préférence, il s'agit d'un four dit micro-ondes ou d'un four mixte.The heat treatment device according to the invention comprises a cooking enclosure and the sealing means according to the invention. Preferably, it is a so-called microwave oven or a mixed oven.

La présente invention a également pour objet une méthode de réalisation d'un panneau 1 selon l'invention.The present invention also relates to a method of producing a panel 1 according to the invention.

La méthode comprend l'étape de prendre, ou réaliser, le support 2 et le tissu métallique 5 tel que décrit précédemment.The method includes the step of taking, or making, the support 2 and the metallic fabric 5 as described above.

De préférence, le tissu métallique 5 est posé dans son état de repos sur une table munie de moyens d'étirement, par exemple une table munie de mors sur toute sa périphérie, et le tissu est fixé dans ces moyens d'étirement.Preferably, the metal fabric 5 is placed in its rest state on a table provided with stretching means, for example a table provided with jaws over its entire periphery, and the fabric is fixed in these stretching means.

Le tissu métallique 5 est étiré dans au moins une direction, de préférence dans toutes les directions, à savoir sur sa longueur et/ou sa largeur, et maintenu dans un état étiré, de préférence de 0,01 à 5% par rapport à son état de repos.The metallic fabric 5 is stretched in at least one direction, preferably in all directions, namely over its length and / or its width, and maintained in a stretched state, preferably from 0.01 to 5% relative to its resting state.

De préférence, l'étirement du tissu métallique 5 est obtenu en appliquant une force comprise entre 5 et 25 Newtons.Preferably, the stretching of the metallic fabric 5 is obtained by applying a force of between 5 and 25 Newtons.

La méthode peut comprendre en outre la fixation sur le tissu métallique 5 d'un ou plusieurs éléments séparateurs, permettant de délimiter au moins une, de préférence plusieurs zones de tissu métallique 5 tendu, et son découpage le long du ou des séparateurs. Cela présente l'avantage de disposer de portions de tissu métallique 5 tendu et donc de faciliter leur manipulation pour la mise en ouvre des autres étapes du procédé.The method may further comprise the attachment to the metallic fabric 5 of one or more separating elements, making it possible to delimit at least one, preferably several zones of metallic fabric 5 stretched, and its cutting along the separator (s). This has the advantage of having stretched portions of metallic fabric 5 and therefore of facilitating their handling for the implementation of the other steps of the process.

La taille et les dimensions du ou des séparateurs sont fonctions de celles du support 2 et donc celles du panneau 1.The size and dimensions of the separator (s) depend on those of the support 2 and therefore those of the panel 1.

La méthode comprend l'étape de prendre, ou réaliser, un support 2 tel que décrit précédemment, de déposer des moyens de fixation 6, sur tout ou partie de la périphérie 7 d'une des surfaces 3 ou 4, de préférence à quelques millimètres du bords 8 du support 2, éventuellement également sur un ou plusieurs des bords 8. De préférence, l'application des moyens de fixation 6 met en oeuvre un pistolet pneumatique, ce qui présente l'avantage de gagner en précision et d'obtenir une meilleur homogénéité des moyens de fixation 6 sur la ou les surfaces 3, 4.The method comprises the step of taking, or producing, a support 2 as described above, of depositing fixing means 6, on all or part of the periphery 7 of one of the surfaces 3 or 4, preferably a few millimeters of the edges 8 of the support 2, possibly also on one or more of the edges 8. Preferably, the application of the fastening means 6 uses a pneumatic gun, which has the advantage of gaining precision and obtaining a better homogeneity of the fixing means 6 on the surface or surfaces 3, 4.

Le tissu métallique 5 tendu, ou une portion de ce dernier, munie de son ou de ces éléments séparateurs, est mis(e) en contact avec le support 2 muni des moyens de fixation 6. De préférence, c'est le tissu métallique 5 tendu, ou une de ces portions, qui est posé(e) sur le support 2. Avantageusement, une pression est exercée sur le tissu métallique 5, afin que les moyens de fixation 6 pénètrent dans, et de préférence traversent, ces mailles.The stretched metal fabric 5, or a portion of the latter, provided with its separating element or elements, is brought into contact with the support 2 provided with the means fixing 6. Preferably, it is the stretched metal fabric 5, or one of these portions, which is placed on the support 2. Advantageously, pressure is exerted on the metal fabric 5, so that the means of fixation 6 penetrate into, and preferably pass through, these meshes.

La méthode comprend en outre une étape de suppression du ou des éléments séparateurs du tissu métallique 5 tendu.The method further comprises a step of removing the separating element or elements from the stretched metallic fabric 5.

La méthode peut comprendre en outre une étape de découpe du tissu métallique 5 dépassant au-delà des bords 8 du support 2, de préférence en laissant une marge par rapport auxdits bords 8, qui est fonction de l'utilisation finale du panneau selon l'invention. Par exemple, pour un vitrage de fours micro-ondes, cette marge sera d'environ de 5 à 25 mm.The method may further comprise a step of cutting the metallic fabric 5 projecting beyond the edges 8 of the support 2, preferably leaving a margin relative to said edges 8, which is a function of the end use of the panel according to the invention. For example, for glazing of microwave ovens, this margin will be approximately 5 to 25 mm.

La méthode de réalisation du vitrage selon l'invention comprend l'étape de prendre, ou réaliser, le panneau 1 selon l'invention, de préférence fabriqué selon la méthode décrite précédemment, une étape de prendre, ou réaliser, un ou plusieurs revêtements, ou films, et/ou une ou plusieurs plaques, ou feuilles, transparentes, de même nature, caractéristiques et dimensions que celles formant le support 2, une étape de recouvrir tout ou partie du tissu métallique 5 et/ou du support 2, de façon superposée ou adjacente, et/ou sur la ou les surfaces 3, 4 du support 2 non recouvertes du tissu métallique 5, mais de préférence à l'exception de la marge de tissu métallique 5 dépassant les bords 8 du support 2.The method of producing the glazing according to the invention comprises the step of taking, or making, the panel 1 according to the invention, preferably made according to the method described above, a step of taking, or making, one or more coatings, or films, and / or one or more plates, or sheets, transparent, of the same nature, characteristics and dimensions as those forming the support 2, a step of covering all or part of the metallic fabric 5 and / or of the support 2, so superimposed or adjacent, and / or on the surface or surfaces 3, 4 of the support 2 not covered with the metallic fabric 5, but preferably with the exception of the margin of metallic fabric 5 extending beyond the edges 8 of the support 2.

L'application du ou des revêtements, films, plaques ou feuilles peut se faire par toute méthode adéquate.The application of the coating (s), films, plates or sheets can be done by any suitable method.

La méthode de réalisation de moyens d'obturation d'une enceinte de traitement thermique, en particulier d'une porte d'un four micro-ondes ou mixte, comprend l'étape de prendre ou réaliser un vitrage selon l'invention, de préférence fabriqué selon la méthode décrite précédemment, de prendre ou réaliser un cadre monobloc, ou fait d'un assemblage d'éléments de cadre, et de fixer le cadre sur le vitrage, de préférence au niveau des, ou sur les, moyens de fixation 6 du tissus métallique 5 sur le support 2 et/ou un ou plusieurs bords du vitrage. De préférence, la méthode comprend en outre une étape de prendre, ou réaliser, des moyens formant charnière et de les fixer sur le cadre, avant ou après la pose du cadre sur le vitrage.The method for producing means for closing a heat treatment enclosure, in particular for a door of a microwave or combi-oven, comprises the step of taking or producing a glazing according to the invention, preferably manufactured according to the method described above, to take or make a one-piece frame, or made of an assembly of frame elements, and to fix the frame on the glazing, preferably at, or on the fixing means 6 metallic fabric 5 on the support 2 and / or one or more edges of the glazing. Preferably, the method further comprises a step of taking, or producing, means forming a hinge and of fixing them to the frame, before or after the setting of the frame on the glazing.

La méthode de réalisation d'un dispositif de traitement thermique comprend l'étape de prendre, ou réaliser une enceinte de cuisson, de préférence hermétique, ou sensiblement hermétique, aux micro-ondes, l'étape de prendre, ou réaliser les moyens d'obturation selon l'invention, de préférence réalisés à l'aide de la méthode décrite précédemment, et une étape de connexion des moyens d'obturation à l'enceinte.The method for producing a heat treatment device comprises the step of taking, or making a cooking chamber, preferably hermetic, or substantially hermetic, in the microwave, the step of taking, or making the means of sealing according to the invention, preferably made using the method described above, and a step of connecting the sealing means to the enclosure.

Claims (15)

Panneau (1) pour vitrage comprenant un support (2) rigide, sensiblement transparent au rayonnement dans le domaine du visible, et comprenant au moins une surface (3, 4), comprenant une périphérie (7) et un ou plusieurs bords (8), caractérisé en ce que ladite au moins une surface (3, 4) est recouverte d'un tissu métallique (5) sous une forme « étiré ».Panel (1) for glazing comprising a rigid support (2), substantially transparent to radiation in the visible range, and comprising at least one surface (3, 4), comprising a periphery (7) and one or more edges (8) , characterized in that said at least one surface (3, 4) is covered with a metallic fabric (5) in a "stretched" form. Le panneau (1) selon la revendication 1, dans lequel le tissu métallique (5) dans son état « étiré », comprend un pourcentage d'étirement, dans la direction de trame et/ou de chaine, compris entre 0,01 à 5% par rapport à un état de « repos » dudit tissu métallique (5).The panel (1) according to claim 1, in which the metallic fabric (5) in its "stretched" state, comprises a percentage of stretching, in the weft and / or warp direction, of between 0.01 to 5 % relative to a “rest” state of said metallic fabric (5). Le panneau (1) selon l'une quelconque des revendications précédentes, dans lequel le tissu métallique (5) est dans un état « étiré » sous une tension comprise entre 5 et 25 Newtons.The panel (1) according to any one of the preceding claims, in which the metallic fabric (5) is in a "stretched" state under a tension of between 5 and 25 Newtons. Le panneau (1) selon l'une quelconque des revendications précédentes, dans lequel le tissu métallique (5) est fixé, à l'aide de moyens de fixation (6), sur tout ou partie de la périphérie (7) de la au moins une surface (3, 4) du support (2).The panel (1) according to any one of the preceding claims, in which the metallic fabric (5) is fixed, by means of fixing means (6), on all or part of the periphery (7) of the to the at least one surface (3, 4) of the support (2). Le panneau (1) selon l'une quelconque des revendications précédentes, dans lequel le tissu métallique (5) étiré comprend des mailles carrées dont la distance de chaine « w » et/ou la distance de trame de « w' » est comprise entre 120 et 220 µm.The panel (1) according to any one of the preceding claims, in which the stretched metallic fabric (5) comprises square meshes of which the warp distance "w" and / or the weft distance of "w '" is between 120 and 220 µ m. Vitrage comprenant au moins un panneau (1) selon l'une quelconque des revendications précédentes, et comprenant en outre un ou plusieurs revêtements, et/ou une ou plusieurs plaques de même nature et/ou caractéristiques et/ou dimension que celle(s) du support (2).Glazing comprising at least one panel (1) according to any one of the preceding claims, and further comprising one or more coatings, and / or one or more plates of the same nature and / or characteristics and / or dimension as that (s) of the support (2). Moyens d'obturation d'une enceinte de traitement thermique comprenant le vitrage selon la revendication 6, et comprenant un cadre, fixé sur et/ou entourant ledit vitrage, et comprenant, ou coopérant avec, des moyens formant charnière permettant l'obturation de ladite enceinte de traitement thermique.Means for shutting off a heat treatment enclosure comprising the glazing according to claim 6, and comprising a frame, fixed on and / or surrounding said glazing, and comprising, or cooperating with, hinge means enabling the shutting of said heat treatment enclosure. Les moyens d'obturation selon la revendication 7, dans lesquels le cadre est en contact électrique avec le tissu métallique (5).The sealing means according to claim 7, in which the frame is in electrical contact with the metallic fabric (5). Dispositif de traitement thermique utilisant des micro-ondes comprenant une enceinte de traitement thermique et les moyens d'obturation selon l'une quelconque des revendications 7 ou 8.Heat treatment device using microwaves comprising a heat treatment enclosure and the sealing means according to any one of claims 7 or 8. Méthode de réalisation d'un panneau (1) selon l'une quelconque des revendications 1 à 5, comprenant les étapes de : - prendre un support (2) rigide, sensiblement transparent au rayonnement dans le domaine du visible, et comprenant au moins une surface (3, 4), une périphérie (7), et un ou plusieurs bords (8), - prendre un tissu métallique (5) et l'étirer pour le faire passer d'un état de « repos » à un état « étiré », - fixer à l'aide de moyens de fixation (6), ledit tissu métallique (5) étiré, et le maintenir étiré, sur ladite au moins une surface (3, 4). Method for producing a panel (1) according to any one of Claims 1 to 5, comprising the steps of: - Take a rigid support (2), substantially transparent to radiation in the visible range, and comprising at least one surface (3, 4), a periphery (7), and one or more edges (8), - take a metallic fabric (5) and stretch it to move it from a "rest" state to a "stretched" state, - Fix using fastening means (6), said stretched metal fabric (5), and keep it stretched, on said at least one surface (3, 4). La méthode selon la revendication 10, l'étirement du tissu métallique (5) se fait dans la direction de trame et/ou de chaine, et est compris entre 0,01 à 5% par rapport à un état de « repos ».The method according to claim 10, the stretching of the metallic fabric (5) is done in the weft and / or warp direction, and is between 0.01 to 5% relative to a "rest" state. La méthode selon la revendication 10 ou 11, comprenant en outre une étape de fixer, sur le tissu métallique (5), un ou plusieurs éléments séparateurs délimitant une pluralité de zones de tissu métallique (5) étiré, et une étape de découpage dudit tissu métallique (5) étiré, le long des séparateurs.The method according to claim 10 or 11, further comprising a step of fixing, on the metallic fabric (5), one or more separating elements delimiting a plurality of zones of stretched metallic fabric (5), and a step of cutting said fabric metallic (5) stretched along the dividers. Méthode de réalisation d'un vitrage selon la revendication 6, comprenant les étapes de : - prendre un panneau (1) réalisé en mettant en ouvre la méthode selon de l'une quelconque des revendications 10 à 12, - prendre un ou plusieurs revêtements, et/ou un ou plusieurs revêtements, et/ou une ou plusieurs plaques de même nature et/ou caractéristiques et/ou dimension que celle(s) du support (2), - recouvrir tout ou partie du tissu métallique (5) et/ou dudit support (2) non recouvert dudit tissu métallique (5). Method for producing a glazing unit according to claim 6, comprising the steps of: - take a panel (1) produced by implementing the method according to any one of claims 10 to 12, - take one or more coatings, and / or one or more coatings, and / or one or more plates of the same nature and / or characteristics and / or dimension as that (s) of the support (2), - cover all or part of the metallic fabric (5) and / or of said support (2) not covered with said metallic fabric (5). Méthode de réalisation de moyens d'obturation, d'une enceinte de traitement thermique, selon l'une quelconque des revendications 7 ou 8, comprenant les étapes de : - prendre un vitrage, réalisé en mettant en ouvre la méthode selon la revendication 13, - prendre un cadre, - fixer ledit cadre sur ledit vitrage, au niveau des, ou sur les, moyens de fixation (6) du tissus métallique (5) sur le support (2) et/ou sur un ou plusieurs bords (8) du support (2). Method of producing sealing means, of a heat treatment enclosure, according to any one of claims 7 or 8, comprising the steps of: take a glazing, produced by implementing the method according to claim 13, - take a frame, - Fix said frame on said glazing, at, or on, the fixing means (6) of the metallic fabric (5) on the support (2) and / or on one or more edges (8) of the support (2) . Méthode de réalisation d'un dispositif de traitement thermique utilisant des micro-ondes comprenant les étapes de : - prendre enceinte de cuisson, - prendre les moyens d'obturation, réalisés en mettant en ouvre la méthode selon la revendication 13, - connecter lesdits moyens d'obturation à la dite enceinte. Method for producing a heat treatment device using microwaves comprising the steps of: - take the cooking chamber, - take the sealing means, made by implementing the method according to claim 13, - Connect said shutter means to said enclosure.
EP18306352.8A 2018-10-15 2018-10-15 Microwave reflective panel, elements comprising such a panel, and method for obtaining same Withdrawn EP3641499A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP18306352.8A EP3641499A1 (en) 2018-10-15 2018-10-15 Microwave reflective panel, elements comprising such a panel, and method for obtaining same
PCT/EP2019/063713 WO2020078593A1 (en) 2018-10-15 2019-05-28 Microwave reflecting panel, elements comprising such a panel and method for obtaining same
BR112021004879-0A BR112021004879A2 (en) 2018-10-15 2019-05-28 a panel, glazing, means for closing a heat treatment chamber, device, a method of manufacturing a panel, a method of making a glazing, a method of creating means for closing a heat treatment chamber, and a method of creating a device
EP19726003.7A EP3868177B1 (en) 2018-10-15 2019-05-28 Microwave reflective panel, elements comprising such a panel, and method for obtaining same
CN201980067520.5A CN112840743B (en) 2018-10-15 2019-05-28 Microwave reflecting panel, element comprising such a panel and method for obtaining an element
MX2021002800A MX2021002800A (en) 2018-10-15 2019-05-28 Microwave reflecting panel, elements comprising such a panel and method for obtaining same.
US17/276,663 US20220039220A1 (en) 2018-10-15 2019-05-28 Microwave reflective panel, elements comprising such a panel, and method for obtaining them
KR1020217013223A KR102583658B1 (en) 2018-10-15 2019-05-28 Microwave reflective panels, panel components and acquisition methods

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EP (2) EP3641499A1 (en)
KR (1) KR102583658B1 (en)
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BR (1) BR112021004879A2 (en)
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WO2020078593A1 (en) 2020-04-23
CN112840743B (en) 2023-10-31
KR20210062077A (en) 2021-05-28
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EP3868177A1 (en) 2021-08-25
CN112840743A (en) 2021-05-25

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