EP3611001B1 - Dispositif et procédé de revêtement de pièces à usiner - Google Patents

Dispositif et procédé de revêtement de pièces à usiner Download PDF

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Publication number
EP3611001B1
EP3611001B1 EP19184393.7A EP19184393A EP3611001B1 EP 3611001 B1 EP3611001 B1 EP 3611001B1 EP 19184393 A EP19184393 A EP 19184393A EP 3611001 B1 EP3611001 B1 EP 3611001B1
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EP
European Patent Office
Prior art keywords
functional layer
gas
discharge opening
source
coating material
Prior art date
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Active
Application number
EP19184393.7A
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German (de)
English (en)
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EP3611001A1 (fr
Inventor
Johannes Schmid
Ralf Garnjost
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Homag GmbH
Homag Kantentechnik GmbH
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Homag GmbH
Homag Kantentechnik GmbH
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Publication of EP3611001A1 publication Critical patent/EP3611001A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas
    • B05D3/0473—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas for heating, e.g. vapour heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
    • B05D3/104—Pretreatment of other substrates

Definitions

  • the invention relates to a method according to the preamble of claim 1 with a device according to the preamble of claim 9 for coating workpieces which are preferably at least partially made of wood, wood-based materials, plastic or the like.
  • a method and such a device are from the document EP 2694 272 A1 known.
  • the EP 1 800 813 a method and a device for coating components using a laser.
  • other technologies have also developed, such as the use of plasma or ultrasound to activate the adhesive (see, for example WO 2010/009805 ).
  • advances have also been made in the adhesive connection itself, because instead of a pure hot-melt adhesive, a functional layer (often also based on hot-melt adhesive) is used, which is colored very precisely in the same color as the coating material and is therefore hardly visible when joined is. This gives the viewer the impression that there is a "seamless" connection.
  • the post-published EP 2,694,272 Al a device for coating workpieces, which preferably consist at least in sections of wood, wood-based materials, plastic or the like, with a coating material using hot gas.
  • the invention is based on the idea of working with a comparatively simple energy source for activating a functional layer that can be made adhesive and using it so effectively that today's requirements for a high-quality joint connection and an economical production process are also met.
  • the functional layer is at least partially activated by gassing with a heated gas, the heated gas being released to the functional layer via at least one outlet opening and a pressure of at least 1, in the area of the at least one outlet opening. 5 bar.
  • hot compressed gas as an activating agent for the functional layer, it is possible within the scope of the invention to work with a relatively simple energy source associated with low investment costs. At the same time, however, this energy source is suitable for activating a wide variety of functional layers, in particular also the so-called invisible joint functional layers, which otherwise require the use of a more complex energy source such as a laser or a plasma source.
  • the release of the hot gas to the functional layer with an overpressure enables a high energy input to be achieved in the respective functional layer. This fact not only makes it possible to work at comparatively high production speeds, but also represents a key factor in being able to activate special functional layers at all using hot air.
  • the gas has a temperature of at least 300 ° C., preferably at least 350 ° C., in the region of the at least one outlet opening. In this temperature range there is a sufficiently high energy input without fear of damage to the functional layer to be activated.
  • the at least one outlet opening is at a distance of at most 10 mm, preferably at most 4 mm, in particular 2 mm, from the functional layer.
  • This comparatively small distance not only ensures that there is no undesirable cooling of the emerging hot air. Rather, the comparatively small distance between the functional layer and the outlet opening contributes to the fact that a dynamic pressure builds up in the area of the outlet opening, which enables an increased energy input into the functional layer. As a result, a significant contribution is made to achieving the above-mentioned advantages.
  • a development of the invention provides that several outlet openings are provided, the gas in the region of at least two outlet openings having a temperature that differs from one another, preferably in the direction of a relative movement between The outlet openings and the functional layer to be activated increases.
  • the energy input can also be adapted particularly advantageously to the respective boundary conditions of the joining process.
  • the functional layer can be preheated by means of a first outlet opening before it is then completely melted in the area of a second outlet opening. In this way, impairment of the functional layer or, if appropriate, of the coating material or of the workpiece can be avoided, and optimal adhesion of the functional layer can advantageously be achieved.
  • the functional layer can be designed in the most varied of ways within the scope of the invention and in principle also be formed as a simple hot-melt adhesive layer or the like.
  • the functional layer has means for increasing the thermal conductivity, such as, in particular, low-melting polyolefins and / or metal particles. This enables the thermal energy introduced by means of hot air to penetrate the functional layer sufficiently quickly and deeply, so that the functional layer is fully activated with a correspondingly optimized adhesive bond.
  • the functional layer is essentially free of absorbers for laser light or other radiation sources.
  • This further development is based on the knowledge that the functional layers, for example tailored for lasers, are complex and expensive to manufacture, since special absorbers for laser light have to be buffered so that the functional layer can be used at all by means of a laser (or a other comparable radiation source) can be activated.
  • Such additional measures can advantageously be dispensed with within the scope of the invention, since activation of the functional layer by means of high-pressure gas does not require such absorbers. As a result, it is possible to work with functional layers that can be produced much more easily and cost-effectively.
  • the gas supplied to the coating material is at least partially recuperated and used at least indirectly, in particular via a heat exchanger, to heat the supplied gas flow.
  • the economy and the environmental friendliness of the process according to the invention can be increased significantly.
  • the recuperation of the gas helps to avoid excessive heating of the processing environment, which could have a negative impact on the coating process.
  • a device according to the invention for carrying out the method according to the invention is defined in claim 9 and makes it possible to achieve the advantages according to the invention discussed above.
  • At least one outlet opening is designed as a nozzle with a variable cross section. Such a nozzle is a particularly simple and yet effective means of creating a turbulent flow.
  • the compressed gas source is a Has heat exchanger section which is set up to heat supplied pressurized gas to a temperature of at least 450 ° C, preferably at least 600 ° C.
  • a separate heat exchanger section helps the device according to the invention to work independently, a special feature according to the invention being that the heat exchanger section can be supplied with pressurized gas from a pressurized gas source, i.e. is suitable for heat exchanger operation under pressure.
  • the compressed gas has a high energy density as a result of pressure and temperature, which makes it possible to achieve the desired high energy input into the functional layer.
  • the compressed gas is advantageously heated to a comparatively high temperature so that subsequent heat losses on the way to the outlet opening are harmless and, if necessary, even cold compressed gas can be mixed into the process.
  • the device according to the invention can also be fed from an external pressurized gas supply
  • a further development of the invention provides that the pressurized gas source of the device has a pressurized gas generating unit. In this way, the generation and heating of compressed gas can be coordinated with one another in a particularly advantageous manner, and autonomous operation of the device according to the invention is made possible.
  • a development of the invention provides that a material with low thermal conductivity and / or low heat storage capacity is provided in the area of the outlet opening. This contributes to the fact that no heat-related impairment of the coating material, the functional layer or the workpiece occurs as a result of an excessive ambient temperature, which overall contributes to a reliable coating process and a high-quality coating result.
  • the feed device for feeding the coating material is at least partially thermally insulated.
  • the device has a discharge device which is set up to at least partially discharge and preferably also recuperate the gas supplied to the coating material, for example via a heat exchanger to heat the supplied gas flow.
  • a discharge device which is set up to at least partially discharge and preferably also recuperate the gas supplied to the coating material, for example via a heat exchanger to heat the supplied gas flow.
  • the heat exchanger section can be designed in the most varied of ways within the scope of the present invention. According to a further development of the invention, however, it is provided that the heat exchanger section has at least one heat exchanger element provided with cavities, in particular porous and / or porous and / or provided with passage openings, since it is connected to a heat source. This results in a particularly efficient and thus economical and environmentally friendly generation of the hot compressed air with a simple construction.
  • At least one heat exchanger element consists at least in sections of a material that is selected from stainless sintered metal, porous ceramics, metal foam, in particular aluminum foam, and combinations thereof. These materials not only enable a very good heat transfer between the heating source and the air to be heated, but also have a high level of durability and are easy to process.
  • the heating source has heating elements selected from heating cartridges, ceramic heating elements, high-current heaters, lasers, infrared sources, ultrasound sources, magnetic field sources, microwave sources, plasma sources and gassing sources. These different heat sources or combinations of these, depending on the respective requirements and environmental conditions, can advantageously be selected in order to achieve the desired heat output with optimal economic efficiency and environmental friendliness.
  • the device can have a second compressed gas source which is set up to feed in compressed gas upstream of the at least one outlet opening in order to increase the pressure of the gas emerging at the at least one outlet opening.
  • a second compressed gas source which is set up to feed in compressed gas upstream of the at least one outlet opening in order to increase the pressure of the gas emerging at the at least one outlet opening.
  • a device 10 for coating workpieces 2 according to a preferred embodiment of the present invention is in Fig. 1 shown schematically in a plan view.
  • the device 10 according to the invention can be used for coating a wide variety of workpieces, it is preferably used for coating workpieces that are at least partially made of wood, wood-based materials, plastic or the like, as are widely used in the furniture, kitchen and construction element industries . Any surface, such as narrow or wide surfaces, can be coated.
  • the coating material 4 can also be a wide variety of materials, preferably a coating material provided with a functional layer 4 ′ being used.
  • the functional layer 4 ′ can also be an integral part of the coating material 4, for example in the sense of a co-extruded or even completely monolithic coating material.
  • the functional layer 4 is already provided on the surface of the workpiece to be coated and / or is also fed separately into the area between the coating material 4 and the surface of the workpiece 2 to be coated.
  • the functional layer 4 ′ develops adhesive properties through the input of energy (such as, for example, heating), so that the coating material can be joined to the workpiece.
  • energy such as, for example, heating
  • the composite effect can also be based entirely or in part on other mechanisms.
  • the functional layer can have means for increasing the thermal conductivity, such as, for example, low-melting polyolefins and / or metal particles.
  • the functional layer 4 ' is essentially free of absorbers for laser light or other radiation sources.
  • the device 10 further comprises a pressing device 14 for pressing the coating material 4 onto a surface of the workpiece 2, for example in the form of one or more pressure rollers.
  • the feed device 12 for feeding the coating material 4 is thermally insulated at least in sections in the present embodiment.
  • the device 10 further comprises a conveying device 16 for bringing about a relative movement between the pressing device 14 and the respective workpiece 2, the conveying device 16 in the in Fig. 1
  • the embodiment shown is designed as a continuous conveyor device (for example in the form of a conveyor chain). It should be noted, however, that the device according to the invention can also be designed as a stationary machine in which the workpieces are essentially stationary in the course of the coating process and the conveying device 16 is used to move the pressing device 14 and other components relevant to the coating process relative to each other. Combinations of both concepts are also possible.
  • the decisive factor is the possibility of a relative movement between the pressing device 14 (or possibly further components) and the respective workpiece 2, possibly in several spatial directions or around one or more axes of rotation.
  • a wide variety of devices can be used for this, such as conveyor belts, portals, but also robots and much more.
  • an activation unit 20 ' is provided which, in the present embodiment, has several outlet openings 20 for supplying a heated pressurized gas (or gas mixture such as air) 6 to the respective Functional layer 4 'has.
  • the outlet openings 20 are directed correspondingly to the functional layer 4'.
  • the outlet openings 20 have a distance of at most 10 mm, preferably at most 4 mm, for example about 2 mm from the respective
  • the activation unit 20 ' has corresponding outlet openings 20 in several directions, wherein the respective outlet openings can be switched on and off as required.
  • the outlet openings 20 of the activation unit 20 ′ are connected to a pressurized gas source 22.
  • the compressed gas source 22 provides heated compressed gas 6 to the respective outlet openings 20 in such a way that it has an overpressure in the region of at least one outlet opening 20.
  • values for the overpressure present in the region of at least one (preferably all) outlet opening (s) 20 are at least 1.5 bar.
  • FIG Fig. 2 shown schematically in a side view. It shows Fig. 2 that side surface of the activation unit 20 'which faces the functional layer 4' to be activated.
  • the activation unit 20 ′ in the present embodiment has a plurality of outlet openings 20, wherein the gas in the region of at least two outlet openings 20 can have a different temperature from one another.
  • the temperature of the exiting compressed gas be set in the direction of a relative movement between the outlet openings 20 and the functional layer 4 'to be activated, ie in the present case in the flow direction (from left to right in FIG Fig. 2 ), increases.
  • at least individual nozzles can have means for adapting to the geometry of the functional layer to be activated.
  • a wide variety of nozzle geometries can be used, such as round, polygonal, elliptical, etc.
  • means for forming a turbulent flow when the heated pressurized gas 6 emerges can be provided in the area of one or more outlet openings 20.
  • this can be achieved, for example, in that the respective outlet opening 20 is designed as a nozzle with a cross-section that is at least partially variable in the direction of flow.
  • a material with low thermal conductivity and / or low heat storage capacity can be provided in the region of the outlet opening (s) 20.
  • FIG Fig. 3 A preferred, exemplary embodiment of the pressurized gas source 22 is shown in FIG Fig. 3 shown schematically.
  • the compressed gas source 22 has a heat exchanger section 24 which is set up to heat supplied compressed gas to a temperature of at least 450.degree. C., preferably at least 600.degree.
  • the overall system is coordinated in such a way that the gas has a temperature of at least 300 ° C., preferably at least 350 ° C., in the region of the at least one outlet opening 20.
  • the heat exchanger section 24 can have, for example, at least one heat exchanger element provided with cavities, in particular porous and / or porous and / or provided with passage openings and / or provided with through openings, which is equipped with the in Fig. 3 shown heating source is connected.
  • the heat exchanger element can consist at least in sections of a material which is selected from stainless sintered material, porous ceramics, metal foam, in particular aluminum foam, and combinations thereof. Of course, however, other suitable materials can also be used, in particular if they have a high thermal conductivity and / or a high heat storage capacity.
  • the heating source 28 in the present embodiment Heating elements not shown in detail, which can be selected, for example, from heating cartridges, ceramic heating elements, high-current heaters, lasers, infrared sources, ultrasound sources, magnetic field sources, microwave sources, plasma sources and gassing sources.
  • the pressurized gas source 22 has a pressurized gas generating unit 26, for example in the form of a compressor. This can suck in a gas to be compressed from the environment or from a gas supply and pass it on to the heat exchanger section 24.
  • the heat exchanger section 24 can also be fed from an external, possibly central, pressurized gas source, as in FIG Fig. 3 shown.
  • the device 10 according to the invention can furthermore have a second pressurized gas source which is set up upstream of the at least one outlet opening (on the far right in FIG Fig. 3 ) Feed in compressed gas in order to increase the pressure of the gas emerging at the at least one outlet opening.
  • a second pressurized gas source which is set up upstream of the at least one outlet opening (on the far right in FIG Fig. 3 ) Feed in compressed gas in order to increase the pressure of the gas emerging at the at least one outlet opening.
  • the device 10 further comprises a discharge device 32, such as a collecting funnel.
  • a discharge device 32 such as a collecting funnel.
  • the gas fed to the functional layer 4 ′ can at least partially be removed and preferably also regrouped.
  • a heat exchanger 30 can be provided downstream of the discharge device 32, by means of which the waste heat of the gas fed to the functional layer 4 'can be captured and, for example, returned to the compressed gas source 22 as thermal energy.
  • the device 10 according to the invention is operated, for example, as follows.
  • a workpiece 2 to be coated is conveyed in one conveying direction (from left to right in FIG Fig. 1 ) promoted.
  • a coating material 4 is supplied by means of the supply device.
  • the functional layer provided on the coating material and / or workpiece (or separately) is activated by means of the heated pressurized gas 6 emerging from the outlet openings 20, namely immediately before the coating material is pressed against the surface of the workpiece 2 to be coated by means of the pressure device 14.
  • the coating material 4 is joined to the workpiece 2 by means of the activated functional layer 4 ′.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Claims (19)

  1. Procédé de revêtement de pièces à usiner (2) qui se composent de préférence au moins par sections de bois, matériaux dérivés du bois, matière plastique ou similaire, avec un matériau de revêtement (4), dans lequel le procédé présente les étapes suivantes :
    mise à disposition d'une couche fonctionnelle (4') pouvant être rendue collante par apport d'énergie,
    amenée du matériau de revêtement (4) vers une pièce à usiner (2) à revêtir,
    activation au moins partielle de la couche fonctionnelle (4') par application d'un gaz chauffé (6) sur la couche fonctionnelle (4'),
    le gaz chauffé (6) est transmis par au moins une ouverture de sortie (20) à la couche fonctionnelle (4') et présente dans la zone de l'au moins une ouverture de sortie (20) une pression d'au moins 1,5 bar et
    assemblage du matériau de revêtement (4) avec la pièce à usiner (2) au moyen de la couche fonctionnelle (4') activée,
    caractérisé en ce que
    l'ouverture de sortie (20) possède une distance d'au plus 10 mm par rapport à la couche fonctionnelle (4').
  2. Procédé selon la revendication 1, caractérisé en ce que le gaz présente dans la zone de l'au moins une ouverture de sortie (20) une température d'au moins 300 °C, de préférence d'au moins 350 °C.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que l'au moins une ouverture de sortie (20) possède une distance de 4 mm, en particulier de 2 mm par rapport à la couche fonctionnelle (4').
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que plusieurs ouvertures de sortie (20) sont prévues, dans lequel le gaz présente dans la zone d'au moins deux ouvertures de sortie (20) une température différentes l'une de l'autre, qui augmente de préférence en direction d'un mouvement relatif entre des ouvertures de sortie (20) et la couche fonctionnelle (4') à activer.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche fonctionnelle (4') présente des moyens pour une augmentation de la conductivité thermique comme en particulier des polyoléfines à bas point fusion et/ou des particules métalliques.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche fonctionnelle (4') est sensiblement exempte d'absorbeurs pour de la lumière laser ou d'autres sources de rayonnement.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche fonctionnelle (4') est prévue sur le matériau de revêtement (4) et/ou la pièce à usiner (2) et/ou est amenée séparément.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le gaz amené (6) au matériau de revêtement (4) est récupéré au moins partiellement et est utilisé au moins indirectement, en particulier par le biais d'un échangeur de chaleur (30), pour le chauffage du courant de gaz amené.
  9. Dispositif (10) pour une réalisation du procédé selon l'une quelconque des revendications précédentes, comprenant :
    un appareil d'amenée (12) pour l'amenée du matériau de revêtement (4),
    un appareil de pressage (14) pour le pressage du matériau de revêtement (4) contre une surface de la pièce à usiner (2),
    un appareil de transport (16) pour entraîner un mouvement relatif entre l'appareil de pressage (14) et la pièce à usiner (2) respective,
    au moins une ouverture de sortie (20) pour l'amenée du gaz sous pression (6) chauffé à la couche fonctionnelle (4'), et
    au moins une source de gaz sous pression (22) pour la mise à disposition du gaz sous pression chauffé (6) de l'au moins une ouverture de sortie (20) de telle manière qu'il présente dans la zone de la au moins une ouverture de sortie (20) une pression d'au moins 1,5 bar,
    caractérisé en ce que
    l'au moins une ouverture de sortie (20) présente une distance d'au maximum 10 mm de la couche fonctionnelle (4').
  10. Dispositif selon la revendication 9, caractérisé en ce que dans la zone de l'au moins une ouverture de sortie (20) des moyens pour la formation d'un écoulement turbulent sont prévus lors de la sortie du gaz sous pression chauffé (6), dans lequel de préférence au moins une ouverture de sortie (20) est réalisée sous forme de buse avec une section transversale modifiable.
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que la source de gaz sous pression (22) présente une section d'échangeur de chaleur (24), qui est aménagée afin de chauffer du gaz sous pression amené à une température d'au moins 450 °C, de préférence d'au moins 600 °C.
  12. Dispositif selon l'une quelconque des revendications 9 à 11, caractérisé en ce que la source de gaz sous pression (22) présente une unité de génération de gaz sous pression (26).
  13. Dispositif selon l'une quelconque des revendications 9 à 12, caractérisé en ce que dans la zone de l'ouverture de sortie (20), un matériau avec une faible conductivité thermique et/ou faible capacité d'accumulation de chaleur est prévu.
  14. Dispositif selon l'une quelconque des revendications 9 à 13, caractérisé en ce que l'appareil d'amenée (12) est thermiquement isolé au moins par sections pour l'amenée du matériau de revêtement (4).
  15. Dispositif selon l'une quelconque des revendications 9 à 14, caractérisé en ce qu'il présente de plus un appareil d'évacuation (32), qui est aménagé afin d'évacuer le gaz amené à la couche fonctionnelle (4') au moins partiellement et de préférence aussi de le récupérer, par exemple par un échangeur de chaleur (30) pour un chauffage du courant de gaz amené.
  16. Dispositif selon l'une quelconque des revendications 11 à 15, caractérisé en ce que la section d'échangeur de chaleur (24) présente au moins un élément d'échangeur de chaleur pourvu de cavités creuses, en particulier poreux et/ou caverneux, et/ou pourvu d'ouvertures débouchantes, qui est en liaison avec une source de chaleur (28).
  17. Dispositif selon la revendication 16, caractérisé en ce que le au moins un élément d'échangeur de chaleur se compose au moins par sections d'un matériau qui est sélectionné à partir du métal fritté inoxydable, des céramiques poreuses, de la mousse métallique, en particulier de la mousse d'aluminium, et des combinaisons de ceux-ci.
  18. Dispositif selon l'une quelconque des revendications 9 à 17, caractérisé en ce que la source de chaleur (28) présente des éléments chauffants qui sont sélectionnés à partir de cartouches chauffantes, d'éléments chauffants en céramique, de chauffages à courant fort, du laser, de la source d'infrarouge, de la source d'ultrasons, de la source de champs magnétiques, de la source de micro-ondes, de la source de plasma et de la source d'application de gaz.
  19. Dispositif selon l'une quelconque des revendications 9 à 18, caractérisé en ce qu'il présente de plus une seconde source de gaz sous pression qui est aménagée afin d'injecter en amont de l'au moins une ouverture de sortie du gaz sous pression, afin d'augmenter la pression du gaz sortant au niveau de l'au moins une ouverture de sortie.
EP19184393.7A 2012-08-03 2013-07-16 Dispositif et procédé de revêtement de pièces à usiner Active EP3611001B1 (fr)

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PCT/EP2013/064990 WO2014019847A1 (fr) 2012-08-03 2013-07-16 Procédé et dispositif de revêtement de pièces
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EP2902160B1 (fr) * 2014-02-04 2018-05-23 BIESSE S.p.A. Machine pour placage de chant de panneaux en bois ou similaire
EP2902161B1 (fr) * 2014-02-04 2017-08-23 BIESSE S.p.A. Machine pour placage de chant de panneaux en bois ou similaire
DE102017210261A1 (de) * 2017-06-20 2018-12-20 Homag Gmbh Verfahren und Vorrichtung zum thermischen Aktivieren einer Funktionsschicht eines Beschichtungsmaterials
ES2857910T3 (es) * 2018-12-17 2021-09-29 Starlinger & Co Gmbh Dispositivo y procedimiento para aplicar hojas de recubrimiento sobre extremos preformados para dar fondos cruzados de secciones de manguera
DE102019113794A1 (de) * 2019-05-23 2020-11-26 Homag Gmbh Vorrichtung und Verfahren zum Beschichten von Werkstücken
DE102019114105A1 (de) * 2019-05-27 2020-12-03 Homag Gmbh Verfahren und Vorrichtung zum Beschichten von Werkstücken
DE102019133934A1 (de) * 2019-12-11 2021-06-17 Homag Gmbh Vorrichtung und Verfahren zum Beschichten eines Werkstücks
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EP3611001A1 (fr) 2020-02-19
CN204894132U (zh) 2015-12-23
DE102012213796A1 (de) 2014-02-06
US20150239009A1 (en) 2015-08-27
EP2879847B1 (fr) 2019-09-04
DE102012213796B4 (de) 2021-03-25
EP2879847A1 (fr) 2015-06-10
ES2748184T3 (es) 2020-03-13
BR212015002322U2 (pt) 2015-11-24
US10807121B2 (en) 2020-10-20
WO2014019847A1 (fr) 2014-02-06

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