EP2498919B1 - Dispositif d'application pour l'application et l'irradiation d'un agent de revêtement durcissable par rayonnement - Google Patents

Dispositif d'application pour l'application et l'irradiation d'un agent de revêtement durcissable par rayonnement Download PDF

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Publication number
EP2498919B1
EP2498919B1 EP10779713.6A EP10779713A EP2498919B1 EP 2498919 B1 EP2498919 B1 EP 2498919B1 EP 10779713 A EP10779713 A EP 10779713A EP 2498919 B1 EP2498919 B1 EP 2498919B1
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EP
European Patent Office
Prior art keywords
radiation
coating agent
application device
permeable
application
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.)
Active
Application number
EP10779713.6A
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German (de)
English (en)
Other versions
EP2498919A1 (fr
Inventor
Dietmar Wieland
Konrad Ortlieb
Wolfgang Tobisch
Hans-Georg Fritz
Frank Herre
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Duerr Systems AG
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Duerr Systems AG
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Publication date
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Publication of EP2498919A1 publication Critical patent/EP2498919A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/60—Ventilation arrangements specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0457—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles specially designed for applying liquid or other fluent material to 3D-surfaces of the articles, e.g. by using several moving spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1092—Means for supplying shaping gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0426—Means for supplying shaping gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying

Definitions

  • the invention relates to an apparatus and a method for applying a radiation-curable coating composition to a surface to be coated. Furthermore, the invention relates to associated coating agent application components.
  • an exposure space which can irradiate painted components with a plurality of UV lamps.
  • the exposure room includes a floor, a ceiling, two side walls, a front wall and a back wall, all of which are provided with multiple UV emitters.
  • a disadvantage of the exposure space is in particular that certain areas to be irradiated can not be optimally irradiated by means of the radiators. This is particularly problematic for geometrically complex objects, such as motor vehicle body components, the undercuts, depressions, curved sections, cavities, etc., which by means of the above-described exposure space often can not be sufficiently accurately irradiated. So it may be that certain areas too strong, others in turn are under-irradiated, which can lead to a reduced surface quality.
  • a further disadvantage is that separate application and irradiation components as well as separate paint application and exposure chambers are required from each other. Furthermore, two separate steps are required, namely the application of paint and subsequent curing by means of UV lamps. This is associated with a relatively high time, energy and cost.
  • EP 1 002 587 A2 discloses the production of cured lacquer layers using, for example, a paint robot for the automotive industry with an electrostatic rotary atomizer, wherein the paint is irradiated within the atomizer just before the nozzle for curing with UV light.
  • EP 1074307 A2 discloses a method for applying a UV curable liquid or pasty plastic strand to a substrate, for example for sealing bead seams on sheet metal parts in the automotive industry.
  • an optical waveguide with its light exit point can open into its flow path within a nozzle head, so that the material is activated before it exits the application nozzle.
  • a spray gun for applying an actinic radiation curable coating with a spray nozzle and positioned outside the spray gun outputs for actinic radiation, for example in the form of a UV LED array, with the coating material is irradiated after exiting the spray nozzle.
  • the object of the invention is to provide an improved application device and an improved method for applying a radiation-curable coating agent to a surface to be coated.
  • a radiation-curable coating agent for applying a radiation-curable coating agent to a surface to be coated.
  • the irradiation of the coating composition should be effective, homogeneous and / or uniform.
  • the time and cost for the application and curing of the coating composition should be reduced.
  • the invention encompasses the general technical teaching of a radiation-curable coating composition prior to impact To apply radiation to a surface to be coated in order to achieve an effective, homogeneous and / or uniform curing of the coating composition.
  • the application device for applying a radiation-curable coating composition to a surface to be coated is characterized in particular by an application unit for dispensing the coating agent and at least one radiation delivery section for emitting radiation, wherein the at least one radiation delivery section is configured and arranged such that the coating agent projects Impact on the surface to be coated with the radiation comes into contact.
  • an application unit for dispensing the coating agent and at least one radiation delivery section for emitting radiation, wherein the at least one radiation delivery section is configured and arranged such that the coating agent projects Impact on the surface to be coated with the radiation comes into contact.
  • the radiation used may comprise actinic radiation (photocatalytic radiation), corpuscular radiation (e.g., electron beam curing), wave radiation, radioactive radiation, ultraviolet radiation and other suitable radiation.
  • actinic radiation photocatalytic radiation
  • corpuscular radiation e.g., electron beam curing
  • wave radiation radioactive radiation
  • ultraviolet radiation and other suitable radiation.
  • radiation sources for generating radiation for example, gas discharge lamps, photodiodes, ultraviolet light emitting diodes and other commercially available radiation sources may be used, e.g. Mercury vapor high / medium pressure emitters, metal halide emitters, cross silver vapor top / low pressure lamps, microwave excited electrodeless lamps, capillary emitters, etc.
  • a further advantage is that the application and irradiation of coating agent can be carried out substantially simultaneously, without the requirement of the spatial separation of application and irradiation spaces or of application and irradiation components.
  • This technique of irradiating the lacquer before it has reached the substrate is preferably possible in conjunction with lacquer systems which preferably have a delayed cure after irradiation.
  • lacquer systems which preferably have a delayed cure after irradiation.
  • lacquer systems which include e.g. Lacquer systems based on cationic photoinitiators or photolatent bases.
  • this technique is applicable for radical Fotoinitiation, which usually runs very fast.
  • Reflective means may be provided to reflect the radiation onto the coating agent and / or to reflect back to the coating agent, resulting in more effective irradiation.
  • the reflector means preferably comprise aluminum.
  • the at least one radiation delivery section may be provided in the application device, in a metering device for metering the coating agent (for example a gear metering pump, a piston metering device, etc.) in the application unit, preferably in a paint tube of a rotary atomizer, for example a module (eg a mixer) for surface enlargement and / or mixing of the coating agent in the paint tube and / or at another suitable location in the application unit may be provided on the application unit, preferably on or in an end face of a rotary atomizer, which faces a surface to be coated during operation of the rotary atomizer , in particular on a steering gas ring and / or external charging means for external charging the coating agent, on a bell cup for a rotary atomizer, on a distributor disc for a rotary atomizer, on a steering gas ring of a rotary atomizer, in a coating agent line for supplying the coating agent to the application unit, and / or on or in a coating agent line
  • the at least one radiation delivery section comprises at least one radiation-transmissive section.
  • the radiation-transmissive section can emit radiation over a large area. It is particularly advantageous because the radiation coupling-in area for introducing radiation into the radiation-transmissive section can be many times smaller than the area for emitting radiation onto the coating agent.
  • the surface for emitting radiation is, for example, but not limited to, the surface of a mixer described below, the inner peripheral surface of a closed-walled portion through which coating agent flows, or the coating agent overflow surface of a bell cup.
  • the radiation-transmissive portion may surround a portion to be flowed through by coating means to emit radiation substantially uniformly inward over its preferably closed inner circumference.
  • the radiation-transmissive section is preferably closed-walled in cross-section in order to irradiate through-flowing coating agent over its substantially entire inner circumference.
  • the radiation-transmissive section thus preferably has a closed inner peripheral surface.
  • the radiation transmissive portion is a substantially tubular portion, annular portion, or any other closed-walled portion provided to uniformly emit radiation preferably radially inwardly over substantially its entire inner circumference.
  • the radiation-transmissive portion comprises a radiopaque outer region and a radiation-transmissive inner region.
  • the radiopaque outer portion and the radiopaque inner portion are preferably provided on the tubular portion so that the inner portion may be a radially inner portion and the outer portion may be a radially outer portion.
  • a radiation conductor such as a light pipe, glass fibers, etc.
  • the radiation-transmissive portion may be provided so that radiation may propagate in its longitudinal direction and circumferential direction.
  • the radiation-transmissive inner region is provided to allow transmission of a portion of the radiation inwardly toward the flowing coating agent, whereas the radiopaque outer region may preferentially reflect a portion of the radiation inwardly toward the radiation-transmissive inner region.
  • the radiation-transmissive section can deliver radiation to the coating medium flowing through it over its substantially entire inner circumference, and, on the other hand, that the radiation-transmissive section can have a sufficiently long extent in the direction of flow of the coating medium to ensure the homogeneity and / or uniformity of the coating Irradiation continues to improve.
  • the at least one radiation-permeable section is provided on or in a color tube in the application unit, for example in a rotary atomizer, but may also be provided in a coating agent line for supplying the coating agent to the application unit.
  • An advantage of positioning in the application unit is the short time and space between irradiation and application of the coating agent.
  • the at least one radiation delivery section has at least one radiation conductor, such as a light guide, glass fibers, etc., which projects into a section of the application device to be flowed through by coating means, for example into a color tube in the application unit and / or into a coating agent line for supplying the coating agent to the application unit.
  • coating means for example into a color tube in the application unit and / or into a coating agent line for supplying the coating agent to the application unit.
  • At least two radiation conductors are provided which protrude differently far into the section to be flowed through by the coating agent.
  • the radiation conductors can project into the section through which the coating agent flows so that they are distributed essentially uniformly over the flow cross section of the coating agent.
  • the application device comprises a mixer as a module for surface enlargement and / or mixing of the coating agent, which is arranged in a portion of the application device to be flowed through by coating agent, preferably in a coating medium line for supplying the coating agent to the application unit and / or in the Application unit, for example in a paint tube of a rotary atomizer.
  • the module is radiation-transmissive.
  • the module is thus a radiation-transmissive section.
  • the module is designed according to the invention to deliver radiation to the coating agent. It is possible to couple a radiation conductor, such as an optical fiber, glass fibers, etc., to the module to provide the module with radiation so that it can deliver the radiation to passing coating agent.
  • a radiation conductor such as an optical fiber, glass fibers, etc.
  • the advantage of this is that the module essentially over its entire surface Can irradiate coating agent, resulting in a particularly effective, homogeneous and / or uniform irradiation.
  • the module according to the invention is a mixer, in particular a static mixer, preferably a Kenics mixer (for example spiral, vortex or grid system).
  • a mixer in particular a static mixer, preferably a Kenics mixer (for example spiral, vortex or grid system).
  • the mixer must be correspondingly small in size, and still achieve sufficient mixer results, which conventional mixer are not able.
  • a mixer suitable for the invention could preferably be made by a generative process (for example, rapid prototyping, e.g., laser sintering, laser melting, etc.).
  • the application unit comprises an atomizer, preferably a rotary atomizer. It is preferred that the atomizer has an end face, which preferably has a steering gas ring and faces the surface to be coated during operation of the application device, a distributor disc, a bell cup, a color tube and / or external charging means.
  • the at least one radiation delivery section and / or the at least one radiation-transmissive section in the metering device, on or in the frontal surface, on the distributor disc, on the bell cup, in or on the color tube, and / or on the external charging means.
  • a radiation delivery to the coating agent is preferably carried out in the metering device, on or in the front side Surface, through the distributor disc, through the bell cup, preferably the Be Anlagenungsstoffsüberströmflache, through the paint tube, and / or by the external charging means.
  • the front surface, preferably the steering gas ring, the distributor disc, the bell cup, the external charging means, and / or the paint tube made of radiation-transparent material.
  • the radiation delivery section may be provided on or in the front surface such that the radiation is directed substantially at the bell cup, the radiation is directed substantially directly at a coating agent spray, and / or the radiation is substantially atop one already at coating surface applied coating agent is directed.
  • the radiation delivery section or sections may be arranged immovably on the end face or may be arranged to be movable relative to the application unit.
  • the radiation delivery sections are provided in an annular arrangement on the frontal surface.
  • photodiodes, UV light-emitting diodes, etc., or openings, to which radiation is brought by means of radiation conductors can be positioned distributed around a coating agent outlet opening of the application unit.
  • An advantage of an irradiation in the region of the distributor disk, the bell cup, above all on the coating agent overflow surface of the bell cup, by the external charging agent, and / or in flight (in the air) of the coating agent is that there the coating agent is present over a large area, so that irradiation is particularly effectively can act on the coating agent to achieve an effective, homogeneous and / or uniform irradiation.
  • the color tube preferably of a rotary atomizer, in such a way that radiation is directed from the color tube to the distributor plate and / or radially inward to the coating medium flowing through.
  • the steering gas ring comprises gas nozzles for the delivery of inert gas and / or air.
  • the gas nozzles are provided in an annular arrangement on the front surface.
  • the discharged inert gas serves, on the one hand, to prevent unwanted reactions with constituents of the normal atmosphere and, on the other hand, to form the jet of spray emitted by the bell cup.
  • the gas nozzles may be directed to the bell cup or to the spray jet. It is also possible to direct the gas nozzles on a spray edge of the bell cup, which would contribute to atomization of the coating composition.
  • the inert gas there may be used, for example, nitrogen, carbon dioxide, water vapor, a rare gas or a polymeric gas which may be provided in an inert gas reservoir.
  • means for cooling inert gas may be provided to ensure that the inert gas at a lower temperature than the surface to be coated meets the surface to be coated. This leads advantageously to a fogging of the surface to be coated with inert gas.
  • the application unit, the at least one radiation delivery section, and / or the metering device on or in a movable robot arm, preferably at the free end of the mobile robot arm.
  • the robot can position the application unit and / or the radiation delivery means exactly and predefined on the surface to be coated or on the surface to be coated, wherein preferably also the radiation dose, the radiation intensity, the radiation angle and other parameters are controllable for which appropriate control units can be provided.
  • This allows an exact, substantially precise and predefined irradiation and / or application of even complex three-dimensional objects, as are common, for example, in motor vehicle body construction.
  • the radiation delivery section (s) may be a radiation source for generating radiation, i. "active" generate radiation.
  • the radiation delivery section or sections can be provided with radiation, preferably by coupling the radiation delivery section (s) to at least one remotely positioned radiation source via at least one radiation conductor or, for example, by the radiation delivery section (s) of a radiation source Radiation source to be illuminated.
  • the radiation is thus generated “actively” from a remotely located radiation source, whereas the one or more Radiation delivery sections Although radiation, but not “active” generate.
  • a radiation source such that its heat output does not adversely affect the coating agent
  • to provide insulators to thermally separate the radiation unit from the coating agent to provide means for cooling the radiation source, to position the radiation source so that its heat dissipation occurs the coating agent may act to lower its viscosity or to accelerate its curing reaction, and / or to provide means for heating the coating agent to temper the coating agent to affect its curing reaction.
  • the application device may include a paint booth.
  • the paint booth can be operated in recirculation mode with inert gas or under vacuum.
  • the inner walls of the paint booth may be configured as area radiators to further irradiate pre-irradiated coating agent, and / or may further be provided in the paint booth a movable robot having a radiation source to further irradiate pre-irradiated coating agent.
  • coated and irradiated surfaces with an anti-stick and / or easy-to-clean coating. It is also possible to provide means to rinse surfaces contacted by coating agents and exposed to radiation with rinse and / or crosslinking-inhibiting components.
  • a radiation-conducting or radiation-permeable plastic can be used, such as PLEXIGLAS SUNACTIVE ® XT or PLEXIGLAS SUNACTIVE ® GS from Röhm, quartz, quartz glass, special UV-transparent glass, eg quartz glass GE 021Al from Momentive Performance Materials, etc .. Also plastics that are used in the production of the above-mentioned parts by means of stereolithography can be used.
  • the invention extends the field of application of radiation-curable coating compositions.
  • the invention finds application in pigmented paints as coating agents.
  • Pigmented paints usually have such a high layer thickness on the surface to be coated that adequate irradiation can not be achieved with conventional radiation methods (because of the pigmentation), since the irradiation does not reach to the bottom. Due to the irradiation according to the invention and optional subsequent irradiation, radiation curing can now also be used with pigmented paints.
  • a first basecoat (BC1) and a second basecoat (BC2) can be applied without prior irradiation and the subsequent clearcoat (CC) is irradiated and applied according to the invention.
  • This also requires irradiation of the painted surface.
  • the invention also allows irradiation of coating agent in one, two or more stages or with a plurality of predefined parameters, such as radiation dose, radiation intensity, radiation angle, etc., whereby specifically different degrees of crosslinking can be generated.
  • a "light" irradiation preferably in or on the application unit, is usually sufficient for rather lightly loaded surfaces (for example, inner surfaces such as a door entry in a motor vehicle body component).
  • Particularly stressed areas e.g., exterior surfaces of an automotive body component
  • the painting of the interior of a body with a paint system based on latent bases could be done (these are not as high quality as acrylate systems, but require significantly less irradiation) and then cured according to the invention.
  • the subsequent higher-quality outer coating with acrylate systems can be conventional (without irradiation during painting) and can then be cured, for example, with conventional UV lamps.
  • the advantage of this is that the outdoor area, which is more stressed but can also be better achieved with UV lamps, are protected very well with the high-quality acrylate system and the interior area with the latent-base system is sufficiently protected and yet effective (also in poorly accessible areas) can be crosslinked with the application of the invention.
  • Another advantage of the invention is that due to the fact of irradiation of the coating composition before impacting on the surface to be coated, the process time can be reduced.
  • monocure systems can advantageously be used with the invention.
  • Monocure systems are those that are only (exclusively) cured by radiation. In conventional paint booths, including curing, such monocure systems could not be used satisfactorily on substrates with pronounced "shadow areas" (areas that are not sufficiently accessible with conventional UV lamps).
  • the use of monocure systems requires a particularly effective irradiation, which can be ensured by the invention.
  • the invention provides a universal applicator for applying and irradiating radiation-curable coating compositions, which can respond to a wide variety of requirements such as radiation dose, radiation intensity, complex objects to be coated, various coating agents, etc., which has hitherto not been possible with conventional application apparatus was.
  • VOC emissions volatile organic compounds
  • the invention finds particular application in the painting of motor vehicle body components (also module coatings).
  • the invention is also applicable to, for example, the rail, aircraft, marine and / or wind energy industries (e.g., rotor blades).
  • the invention can also be advantageously used in medical technology (for example germ-resistant UV coatings), in construction (for example facade elements made of polymers with UV coatings), in the field of organic photovoltaics (for example UV-curing individual layers).
  • the radiation can also be introduced into isolated (high-voltage) atomizers via suitable materials, for example with the aid of radiation and / or light guides, battery operation, potential-separated power supply similar to an electric turbine, etc.
  • the invention encompasses all radiation-curable coating compositions, preferably paints, as well as all suitable coating methods, preferably coating methods, sometimes also the flooding and the inkjet method.
  • the invention also includes an associated method for the application device described above.
  • the method is characterized in particular by the fact that at least one radiation delivery section brings the coating agent into contact with the radiation before impinging on the surface to be coated.
  • the invention also encompasses associated coating agent application components, in particular rotary atomizer components, preferably a bell cup, a distributor disk, a color tube, external charging means for external charging of the coating agent, a module for increasing the surface area and / or mixing of a coating agent, and / or a metering device.
  • the coating agent application component may be made of radiation-transmissive material or at least have radiation-transmissive material.
  • a radiation-permeable plastic can be used, such as PLEXIGLAS SUNACTIVE ® XT or PLEXIGLAS SUNACTIVE ® GS from Röhm, quartz, quartz glass, special UV-transparent glass, such as quartz glass GE 021A1 of Momentive performance materials, etc .. Also plastics that are at The production of the above-mentioned parts by means of stereolithography can be used.
  • the radiation delivery section, the at least one radiation-transmissive section, the coating agent application component, the bell cup, the distributor plate, the color tube, sections of the frontal surface, the external charging means, the module, and / or sections of the metering device are in particular radiation-transmissive to actinic radiation (photocatalytic radiation), ultraviolet Radiation, corpuscular radiation (eg electron beam curing), and / or radioactive radiation.
  • Fig. 1 shows a schematic representation of a longitudinal section of a radiation delivery section 10 for emitting radiation S, which is to be arranged in an application device according to a first embodiment of the invention.
  • the radiation delivery section 10 comprises a radiation-transmissive section 11.
  • the radiation delivery section 10 or the radiation-transmissive section 11 is provided substantially tubular or annular and comprises a radiopaque radial outer region 11A and a radiation-transmissive radially inner region 11B.
  • Arrow P1 shows the flow direction of the coating agent B.
  • the section A has an inlet for the coating agent B and an outlet for the coating agent B and is closed in cross-section closed-walled by the radiation-transmissive portion 11, on the one hand to allow flow through the coating agent B and on the other hand to completely enclose the coating agent B in the circumferential direction.
  • the portion A is circumferentially bounded by the radiation-transmissive inner portion 11B.
  • the radiation delivery section 10 can be positioned at any position between a coating agent reservoir and an outlet opening of an application unit, wherein a position close to the outlet opening is to be preferred in order to minimize the distance between the irradiation location and the outlet opening for the coating agent B or the surface to be coated.
  • a radiation conductor 12, preferably a light guide, is coupled on the one hand to the radiation-transmissive section 11, and on the other hand to a radiation source, preferably a light source.
  • the radiation delivery section 10, in particular the radiation-transmissive section 11 can be supplied with radiation S in order to deliver it to the coating agent B.
  • the radiation source and the radiation delivery section 10 are thus positioned away from each other.
  • Fig. 2 shows a schematic representation of a cross section of the radiation delivery section 10 along line L1-L1 in FIG Fig. 1 , There too, the section A, the radiation-transmissive section 11, the radiopaque radial outer region 11A and the radiation-permeable radially inner region 11B, through which the coating agent B flows, can be seen. As in Fig. 2 can be seen, the emission of radiation S takes place over the entire inner circumference of the radiation-permeable radially inner region 11B in the section A to be flowed through by the coating agent B.
  • the radiation-emitting portion 10 and the radiation-transmissive portion 11 is supplied via the radiation conductor 12 with radiation S to irradiate the coating agent B.
  • the supplied Radiation S propagates in the radiation-transmissive portion 11 in its longitudinal direction P2 and its circumferential direction P3 by being partially reflected between the radiopaque radial outer region 11A and the radiation-transmissive radially inner region 11B. In this case, part of the radiation S can escape from the radiation-permeable radially inner region 11B and act on the coating agent B.
  • the radiation-transmissive portion 11 is designed so that it can emit radiation S over its entire inner peripheral surface and over its entire longitudinal extent.
  • the through-flowing coating agent B can also be fully irradiated in the circumferential direction, and not only from one or two sides, whereby it is possible to effectively, homogeneously and / or uniformly irradiate the through-flowing coating agent B over the entire flow cross-section.
  • a in Fig. 1 shown radiation input surface 13 for introducing the radiation S into the radiation-transmissive portion 11 is many times smaller than the area for emitting the radiation to the coating agent B. That is, in the first embodiment, that the radiation injection surface 13 is many times smaller than the inner peripheral surface of the tubular radiation-transmissive portion 11.
  • Fig. 3 shows a schematic representation of a protruding into a to be flowed through by coating agent B section A radiation delivery section 20 according to a second embodiment of the invention.
  • Arrow P1 indicates the flow direction of the coating agent B.
  • the radiation delivery section 20 comprises a radiation conductor 20A, from which four further radiation conductors 20B, 20C, 20D and 20E protrude into the section A.
  • the radiation conductors 20B, 20C, 20D and 20E each have a radiation exit opening at their free end in order to irradiate the coating agent B. Similar to the first embodiment, the radiation delivery section 20 is connected to a radiation source via a radiation conductor 20A.
  • Radiation conductors 20B, 20C, 20D and 20E protrude at different distances into section A in order to ensure effective, homogeneous and / or uniform irradiation over the flow cross-section of coating agent B.
  • substantially point-like irradiations of the coating agent B take place, due to the arrangement of the radiation conductors 20B, 20C, 20D and 20E in the section A through which coating agent B flows, effective, homogeneous and / or uniform irradiation of the coating agent B can be achieved ,
  • the inner surface of the section to be flowed through by the coating agent B prefferably provided, at least in regions, with a reflector, e.g. a reflective coating, an aluminum layer, etc. to provide.
  • a reflector e.g. a reflective coating, an aluminum layer, etc.
  • Fig. 4 shows a cross-sectional view of a portion of an application unit 35, which is to be arranged in an application device according to a third embodiment of the invention.
  • the application unit 35 is preferably around a rotary atomizer.
  • the rotary atomizer 35 includes a plurality of radiation emitting portions 30, such as a bell cup 30A, a distributor disk 30B, a plurality of radiation means 30D and a paint tube 30C.
  • the radiation means 30D are provided on or in an end surface 31 and directed towards the bell cup 30A (in another embodiment, the radiation means may also be provided so as to be directed directly onto a coating agent spray and / or directly onto the surface to be coated), to provide this with radiation S for delivery to the coating agent B.
  • a steering gas ring 32 is further provided with gas nozzles 32A.
  • the bell cup 30A and / or the distributor disc 30B are at least partially radiation-permeable.
  • the color tube 30C is coupled to a radiation source to be supplied with radiation S.
  • the paint tube 30C is directed to the distributor disc 30B to provide it with radiation S for delivery to the coating agent B.
  • the emission of radiation to the coating agent B thus takes place through the bell cup 30A, preferably via the coating medium overflow surface of the bell cup 30A, and through the distributor disk 30B.
  • the radiation means 30D are arranged in an annular arrangement on the front face 31 around the bell cup 30A.
  • the radiation means 30D are supplied with radiation S via a respective radiation conductor in order to emit the radiation in the direction of the bell cup 30A.
  • the Radiation means 30D and the radiation sources are thus positioned away from each other. This is particularly advantageous when the application unit 35 is to be arranged at the free end of a robot arm, since the weight at the free end of the robot arm can be kept low, which is advantageous for the sensitive robot dynamics.
  • the radiation means 30D as radiation sources for generating radiation S directly on the application unit 35, preferably on or in the frontal area 31.
  • the radiation means 30D are in FIG. 4 directed to the bell cup 30A to irradiate it. Since the bell cup 30A is at least partially radiation-permeable, in particular the coating agent B located on the coating medium overflow surface of the bell cup 30A is irradiated over a large area in order to ensure effective, homogeneous and / or uniform irradiation.
  • the radiation means 30D disposed on or in the end face 31 such that radiation S is directed substantially directly onto a coating agent spray jet, and / or to provide the radiation means 30D arranged on or in the front face 31 such that the Radiation S is directed to a substantially already applied to the surface to be coated coating agent B.
  • the radiation means 30D should preferably be positioned radially outside the outer edge of the bell cup, as shown schematically in FIG. 4 by the arrow P ', the radiation means 30D' and the radiation S ', in which case the Radius R2 of the radiation means arrangement is greater than the radius R1 of the steering gas nozzle arrangement (see FIG. 5 ).
  • the steering gas ring 32 is further provided with the gas nozzles 32A for the release of inert gas G.
  • the application device may comprise an inert gas reservoir.
  • the inert gas G discharged from the steering gas nozzles 32A serves, on the one hand, to form the coating agent B and, on the other hand, to prevent undesired reactions with constituents in the normal atmosphere.
  • the steering gas nozzles 32A are arranged so that the inert gas G is directed to the outer surface of the bell cup 30A and / or the peripheral outer edge of the bell cup 30A.
  • further radiation delivery sections can be provided, whose emitted radiation is directed to the coating agent spray and / or to the surface to be coated.
  • the coating agent B in flight so between the outer edge of the bell cup 30A and the surface to be coated, are irradiated.
  • Fig. 5 which is a schematic representation of a plan view of the front surface 31 along line L2-L2 in Fig. 4 can be seen, the Lenkgäsdüsen 32 A and the radiation means 30 D are arranged annularly and concentrically with each other, wherein the radius R 1 of the steering gas nozzle arrangement is greater than the radius R2 of the Strahlungsstoffand eleven.
  • an arrangement may be chosen in which the radius R1 is smaller than the radius R2 or the radius R1 is the same size as the radius R2.
  • the application unit 35 is preferably arranged on or in a free end of a movable robot arm, so that the coating agent B and / or the radiation S can be directed onto the surface to be coated with sufficient accuracy.
  • external charging agents are usually used to externally charge the coating agent.
  • the external charging means (external charging fingers) usually have fixing means and electrodes for electrically charging the coating agent.
  • the fastening means usually project finger-like from the end face of an application unit, preferably a rotary atomizer, and are usually arranged at uniform angular intervals around a coating agent outlet opening of the application unit.
  • the electrodes are positioned at the free ends of the attachment means to electrically charge the coating agent.
  • Fig. 6 shows a schematic representation of a radiation delivery section 40, which is to be arranged in an application device according to a fourth embodiment.
  • the radiation delivery section 40 has a schematically indicated mixer 41 as a module for increasing the surface area and / or mixing of coating agent B, which is arranged in a section A to be flowed through by coating agent B.
  • the mixer 41 is preferably a Kenics mixer, which may for example be arranged in a paint tube of a rotary atomizer.
  • the mixer 41 is made of radiation-permeable material and thus constitutes a radiation-transmissive section.
  • a radiation conductor 42 preferably a light guide, which is coupled on the one hand to the mixer 41 and on the other hand is coupled to a radiation source, preferably a light source.
  • the mixer 41 can be supplied with radiation to deliver it to the coating agent B.
  • the mixer 41 is designed so that it can emit radiation over its substantially entire surface. It is advantageous that a radiation coupling surface 43 for introducing radiation into the mixer 41 is many times smaller than the surface for emitting the radiation to the coating agent B. That is, in the fourth embodiment, the light coupling surface 43 is many times smaller than the surface of the mixer 41.
  • the irradiation of the coating agent B on the one hand due to the surface enlargement and / or the mixing and on the other hand due to the large-scale release of radiation from the mixer 41 can be extremely effective, homogeneous and / or uniform.
  • FIG. 7 shows a cross-sectional view of a portion of an application unit 35 ', which is to be arranged in an application device according to a further embodiment of the invention.
  • the application unit 35 ' is preferably a rotary atomizer.
  • FIG. 7 a portion of a bell cup 30A '.
  • At least one radiation delivery section 30 ' is provided on the bell cup 30A', in particular in the region of the coating medium overflow surface of the bell cup 30A ', in order to apply the radiation S to the coating agent B before it strikes the surface to be coated.
  • the radiation delivery section 30 ' may extend substantially throughout the coating agent overflow area. However, the radiation delivery section 30 'can also be provided only in sections at the coating agent overflow surface.
  • the radiation delivery section (s) 30 'provided in the area of the coating agent overflow area may be provided to self-generate radiation ("active"). It is also possible for the radiation delivery section or sections 30 'to be supplied with radiation by a radiation source positioned remotely in order to apply the coating agent B to it.
  • the bell cup 30A 'except for the radiation delivery portions 30' is made of a non-transparent material.
  • the radiation delivery section 30 ' may also be constructed as shown in FIGS FIG. 7 to be seen dashed line on the bell cup 30A 'are provided, so penetrate the bell cup at least in sections.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)

Claims (23)

  1. Dispositif d'application pour l'application d'un produit de revêtement (B) durcissable par rayonnement (S) sur une surface à revêtir, avec
    a) une unité d'application (35) pour la distribution du produit de revêtement (B) ; et
    b) au moins une portion d'émission de rayonnement (10 ; 20 ; 20A-20E ; 30, 30A-30D ; 40) pour l'émission du rayonnement (S), qui est conçue de façon à ce que le produit de revêtement (B) entre en contact avec le rayonnement (S) avant d'arriver sur la surface à revêtir ;
    caractérisé en ce que
    c) la portion d'émission de rayonnement (20) comprend au moins un conducteur de rayonnement (20A-20E ; 42), qui dépasse dans une portion (A) traversée par le produit de revêtement (B), pour irradier le produit de revêtement (B) ; et/ou
    d) la portion d'émission de rayonnement (40) comprend un mélangeur (41) pour l'agrandissement de la surface et/ou le mélange du produit de revêtement (B), qui est disposé dans une portion (A) traversée par le produit de revêtement (B), afin d'émettre le rayonnement sur le produit de revêtement.
  2. Dispositif d'application selon la revendication 1, caractérisé en ce que la portion d'émission de rayonnement (10 ; 20, 20A-20E; 30, 30A-30D ; 40) est prévue
    a) dans le dispositif d'application ; et/ou
    b) dans un dispositif de dosage pour le dosage du produit de revêtement (B) ; et/ou
    c) dans l'unité d'application (35), de préférence dans un tube de couleur (30C) d'un pulvérisateur rotatif ou sur le mélangeur (41) pour l'agrandissement de la surface et/ou le mélange du produit de revêtement (b); et/ ou
    d) sur l'unité d'application (35), de préférence sur ou dans une surface frontale (31) d'un pulvérisateur rotatif, plus particulièrement sur une bague de gaz de renvoi (32) ou sur des moyens de charge externe pour la charge externe du produit de revêtement (B) ; et/ ou
    e) sur un plateau en cloche (30A) pour un pulvérisateur rotatif ; et/ou
    f) sur un disque de répartition (30B) pour un pulvérisateur rotatif ; et/ ou
    g) sur ou dans une conduite de produit de revêtement pour l'introduction du produit de revêtement (B) dans l'unité d'application (35).
  3. Dispositif d'application selon la revendication 1 ou 2, caractérisé en ce que
    a) la portion d'émission de rayonnement (10 ; 30, 30A-30D ; 40) comprend au moins une portion transparente au rayonnement (11 ; 30A-30C ; 41) ; et/ou
    b) des moyens de réflexion sont prévus pour réfléchir le rayonnement (S) sur le produit de revêtement (B) et/ou pour le réfléchir en retour sur le produit de revêtement (B).
  4. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce qu'une surface d'injection de rayonnement (13 ; 43) pour l'introduction du rayonnement (S) dans la portion d'émission de rayonnement (10 ; 40) et/ou dans portion perméable au rayonnement (11 ; 41) est plusieures fois inférieure à une surface pour l'émission du rayonnement (S) sur le produit de revêtement (B).
  5. Dispositif d'application selon la revendication 3 ou 4, caractérisé en ce que la portion perméable au rayonnement (11) entoure une portion (A) traversée par le produit de revêtement (B) afin d'émettre un rayonnement (S) vers l'intérieur sur sa circonférence interne et/ou en ce que la portion perméable au rayonnement (11) est une portion à parois fermées globalement tubulaire et/ou annulaire et/ou présentant une autre forme, qui est conçue pour émettre un rayonnement (S) vers l'intérieur sur sa circonférence interne.
  6. Dispositif d'application selon l'une des revendications 3 à 5, caractérisé en ce que la portion perméable au rayonnement (11) comprend une zone externe imperméable au rayonnement (11A) et une zone interne perméable au rayonnement (11A), de préférence
    a) un conducteur de rayonnement (12) étant couplé à la portion perméable au rayonnement (11), pour alimenter celle-ci en rayonnement (S) ; et/ ou
    b) la portion perméable au rayonnement (11) est conçue de façon à ce que le rayonnement (S) puisse se propager dans sa direction longitudinale (P1) et sa direction circonférentielle (P2) ; et/ ou
    c) la zone interne perméable au rayonnement (11B) permet une transmission d'une partie du rayonnement (S) vers l'intérieur ; et/ou
    d) la zone externe imperméable au rayonnement (11A) permet de réfléchir une partie du rayonnement (S) vers l'intérieur vers la zone interne perméable au rayonnement (11B).
  7. Dispositif d'application selon l'une des revendications 3 à 6, caractérisé en ce que la portion perméable au rayonnement
    a) est prévue sur ou dans un tube de couleur dans un pulvérisateur rotatif ou dans une unité d'application ; et/ou
    b) est prévue sur ou dans une conduite de produit de revêtement pour l'introduction du produit de revêtement dans l'unité d'application.
  8. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce qu'au moins deux conducteurs de rayonnement (20A-20E) sont prévus, qui dépassent d'une longueur différente dans la portion (A) traversée par le produit de revêtement.
  9. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) le mélangeur (41) est perméable au rayonnement ; et/ou
    b) au moins un conducteur de rayonnement (42) est prévu, qui est couplé au mélangeur (41), pour alimenter celui-ci en rayonnement (S).
  10. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que le mélangeur est un mélangeur statique.
  11. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) un dispositif de dosage est prévu pour le dosage du produit de revêtement ; et/ou
    b) l'unité d'application (35) comprend un pulvérisateur, de préférence un pulvérisateur rotatif, avec
    c) un plateau en cloche (30A) ; et/ou
    d) un disque de répartition (30B) ; et/ou
    e) un tube de couleur (30C) ; et/ou
    f) une surface frontale (31) qui comprend de préférence une bague de gaz de renvoi (32) ; et/ou
    g) des moyens de charge externe pour la charge externe du produit de revêtement (B) ; et/ou
    une portion d'émission de rayonnement et/ou une portion perméable au rayonnement est disposée
    h) dans le dispositif de dosage ; et/ou
    i) sur le plateau en cloche (30A) ; et/ou
    j) sur le disque de répartition (30B) ; et/ou
    k) dans ou sur le tube de couleur (30C) ; et/ ou
    l) sur la surface frontale (31) ; et/ou
    m) sur les moyens de charge externe ; et/ ou
    une émission de rayonnement sur le produit de revêtement (B) peut avoir lieu
    n) dans le dispositif de dosage ; et/ou
    o) à travers le plateau en cloche (30A), de préférence la surface d'écoulement du produit de revêtement du plateau en cloche (30A) ; et/ou
    p) à travers le disque de répartition (30B) ; et/ou
    q) à travers le tube de couleur (30C) ; et/ ou
    r) dans ou sur la surface frontale (31) ; et/ou
    s) à travers les moyens de charge externe.
  12. Dispositif d'application selon l'une des revendications 2 à 11, caractérisé en ce que
    a) le plateau en cloche (30A) ; et/ ou
    b) le disque de répartition (30B) ; et/ou
    c) le tube de couleur (30C) ; et/ou
    d) la surface frontale (31), de préférence la bague de gaz de renvoi (32) ; et/ou
    e) les moyens de charge externe ;
    sont constitués d'un matériau perméable au rayonnement.
  13. Dispositif d'application selon la revendication 11 ou 12, caractérisé en ce que la portion d'émission de rayonnement (30) comprend une pluralité de moyens de rayonnement (30D),
    a) qui sont prévus sur ou dans la surface frontale (31) de façon à ce que le rayonnement (S) soit orienté globalement vers le plateau en cloche (30A) ; et/ou
    b) qui sont prévus sur ou dans la surface frontale (31) de façon à ce que le rayonnement (S) soit orienté globalement directement vers un jet de pulvérisation de produit de revêtement ; et/ou
    c) qui sont prévus sur ou dans la surface frontale (31) de façon à ce que le rayonnement (S) soit orienté globalement vers un produit de revêtement (B) déjà appliqué sur la surface à revêtir ; et/ou
    d) qui sont disposés de manière immobile ou mobile par rapport au pulvérisateur rotatif sur la surface frontale (31).
  14. Dispositif d'application selon l'une des revendications 2 à 13, caractérisé en ce que le tube de couleur (30C) est prévu pour émettre le rayonnement (S) sur le disque de répartition (30B) et/ou radialement vers l'intérieur.
  15. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que des moyens de pour le refroidissement de gaz inerte sont prévus, pour garantir que le gaz inerte arrive sur la surface à revêtir avec une température plus faible que la surface à revêtir.
  16. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) l'unité d'application (35) ; et/ou
    b) le dispositif de dosage ;
    sont disposés sur ou dans un bras robotique mobile, de préférence au niveau de l'extrémité libre du bras robotique mobile.
  17. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) la portion d'émission de rayonnement est une source de rayonnement pour la génération du rayonnement (S) ; et/ou
    b) la portion d'émission de rayonnement est prévue pour être alimentée en rayonnement (S) ; et/ou
    c) la portion d'émission de rayonnement est prévue pour être alimentée en rayonnement (S), du fait qu'elle est couplée à une source de rayonnement par l'intermédiaire d'un conducteur de rayonnement ; et/ou
    d) la portion d'émission de rayonnement est prévue pour être alimentée en rayonnement (S), du fait qu'elle est irradiée d'une position à distance,
    e) la source de rayonnement étant positionnée de façon à ce que son dégagement de chaleur n'ait pas d'effet négatif sur le produit de revétement ; et/ou
    f) des isolateurs étant mis à disposition pour séparer thermiquement la source de rayonnement du produit de revêtement ; et/ ou
    g) des moyens de refroidissement de la source de rayonnement étant prévus ; et/ou
    h) la source de rayonnement étant positionnée de façon à ce que son dégagement de chaleur puisse agir sur le produit de revêtement afin de diminuer sa viscosité ou d'accélérer sa réaction de durcissement ; et/ou
    i) des moyens de chauffage du produit de revêtement étant prévus pour tempérer le produit de revêtement, de façon à ce que sa réaction de durcissement puisse être influencée.
  18. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce qu'une cabine de peinture est prévue, qui peut fonctionner
    a) avec une circulation de gaz inerte ; ou
    b) sous vide ;
    de préférence
    c) les parois internes de la cabine de peinture étant conçues comme des émetteurs surfaciques pour continuer d'irradier le produit de revêtement pré-irradié ; et/ou
    d) dans la cabine de peinture, un robot mobile étant en outre prévu, qui émet un rayonnement pour continuer d'irradier le produit de revêtement pré-irradié.
  19. Dispositif d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) les surfaces en contact avec le produit de revêtement et exposées au rayonnement sont munies d'un revêtement anti-adhérent et/ou d'un revêtement « easy-to-clean » et/ou
    b) des moyens sont prévus, pour rincer les surfaces en contact avec le produit de revêtement et exposées au rayonnement avec un produit de rinçage et/ou des composants empêchant la réticulation.
  20. Procédé pour l'application d'un produit de revêtement (B) durcissable par rayonnement sur une surface à revêtir, plus particulièrement avec un dispositif d'application selon l'une des revendications précédentes,
    a) une unité d'application (35) appliquant le produit de revêtement (B) sur la surface à revêtir ; et
    b) au moins une portion d'émission de rayonnement (10 ; 20, 20A-20E ; 30, 30A-30D ; 40) mettant en contact le produit de revêtement (B) avec le rayonnement (S) avant qu'il n'arrive sur la surface à revêtir ;
    caractérisé en ce que
    c) au moins une portion d'émission de rayonnement (20, 20A-20E) dépasse dans une portion (A) traversée par le produit de revêtement (B) et irradie le produit de revêtement (B) ; et/ou
    d) un mélangeur perméable au rayonnement (41) est alimenté avec un rayonnement (S) et émet un rayonnement (S) sur le produit de revêtement (B).
  21. Procédé selon la revendication 20, caractérisé en ce que le produit de revêtement (B) traverse une portion perméable au rayonnement (11), à parois fermées, tubulaire et/ou annulaire et/ou présentant une autre forme et la portion perméable au rayonnement (11) émet, par l'intermédiaire de globalement toute sa surface circonférentielle interne, un rayonnement (S) vers l'intérieur sur le produit de revêtement (B), et/ou en ce que l'émission de rayonnement (S) a lieu sur le produit de revêtement (B)
    a) dans un dispositif d'application ; et/ou
    b) dans un dispositif de dosage pour le dosage du produit de revêtement ; et/ou
    c) dans l'unité d'application (35), de préférence dans et/ou à travers un tube de couleur (30C) d'un pulvérisateur rotatif ; et/ ou
    d) sur et/ou à travers un plateau en cloche (30A) pour un pulvérisateur rotatif, de préférence sur la surface d'écoulement de produit de revêtement du plateau en cloche (30A) ; et/ou
    e) sur et/ou à travers un disque de répartition (30B) pour un pulvérisateur rotatif ; et/ou
    f) sur ou dans une surface frontale (31) de l'unité d'application (35) ; et/ou
    g) sur et/ou à travers des moyens de charge externe ; et/ou
    h) sur ou dans une conduite de produit de revêtement pour l'introduction du produit de revêtement (B) dans l'unité d'application (35).
  22. Composant d'application de produit de revêtement dans un dispositif d'application selon l'une des revendications 1 à 20, comprenant
    a) un plateau en cloche (30A) ; et/ ou
    b) un disque de répartition (30B) ; et/ou
    c) un tube de couleur (30C) ; et/ou
    d) des moyens de charge externe pour la charge externe du produit de revêtement (B) ; et/ou
    e) un module (40) pour l'agrandissement de la surface et/ou pour le mélange d'un produit de revêtement (B) ; et/ou
    f) un dispositif de dosage ;
    caractérisé en ce que
    le composant d'application de produit de revêtement est constitué d'un matériau perméable au rayonnement ou comprend au moins un matériau perméable au rayonnement, dans le cas d'un tube de couleur (30C), celui-ci comprenant une portion (A) traversée par le produit de revêtement (B), dans laquelle dépasse un conducteur de rayonnement (20A-20E), pour irradier le produit de revêtement, et/ou celui-ci comprend un mélangeur (41) pour l'agrandissement de la surface et/ou le mélange du produit de revêtement (B), qui est disposé dans une portion (A) traversée par le produit de revêtement (B), pour émettre un rayonnement vers le produit de revêtement (B).
  23. Dispositif d'application et/ou procédé et/ou composant d'application de produit de revêtement selon l'une des revendications précédentes, caractérisé en ce que
    a) la portion d'émission de rayonnement (10 ; 20, 20A-20E ; 30, 30A-30D ; 40) ; et/ou
    b) l'au moins une portion perméable au rayonnement (11) ; et/ou
    c) le composant d'application de produit de revêtement ; et/ou
    d) le plateau en cloche (30A) ; et/ou
    e) le disque de répartition (30B) ; et/ou
    f) le tube de couleur (30C) ; et/ou
    g) des portions de la surface frontale (31) ; et/ou
    h) les moyens de charge externe ; et/ou
    i) le module (40) ; et/ou
    j) des portions du dispositif de dosage ;
    est perméable au rayonnement pour
    k) un rayonnement actinique ; et/ou
    l) un rayonnement ultraviolet ; et/ ou
    m) un rayonnement corpusculaire ; et/ou
    n) un rayonnement radioactif.
EP10779713.6A 2009-11-11 2010-11-11 Dispositif d'application pour l'application et l'irradiation d'un agent de revêtement durcissable par rayonnement Active EP2498919B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009052656A DE102009052656A1 (de) 2009-11-11 2009-11-11 Applikationsvorrichtung zum Applizieren und Bestrahlen eines durch Strahlung härtbaren Beschichtungsmittels
PCT/EP2010/006881 WO2011057786A1 (fr) 2009-11-11 2010-11-11 Dispositif d'application pour l'application et l'irradiation d'un agent de revêtement durcissable par rayonnement

Publications (2)

Publication Number Publication Date
EP2498919A1 EP2498919A1 (fr) 2012-09-19
EP2498919B1 true EP2498919B1 (fr) 2016-07-06

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Country Link
EP (1) EP2498919B1 (fr)
DE (1) DE102009052656A1 (fr)
WO (1) WO2011057786A1 (fr)

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Publication number Priority date Publication date Assignee Title
GB2491643A (en) * 2011-06-10 2012-12-12 Lambson Ltd Method of forming a polymeric material on a substrate
DE102012005261A1 (de) * 2012-03-15 2013-09-19 Eisenmann Ag Rotationszerstäuber und Verfahren zum Aufbringen eines Beschichtungsmaterials auf einen Gegenstand
JP2015512331A (ja) * 2012-03-22 2015-04-27 ビーエイエスエフ・ソシエタス・エウロパエアＢａｓｆ Ｓｅ 硬化塗膜の製造方法及び製造装置
US9339832B2 (en) 2012-03-22 2016-05-17 Basf Se Spraygun for producing cured coating films and methods of use thereof
DE102014008052A1 (de) * 2014-05-28 2015-12-17 Eisenmann Ag Anlage und Verfahren zum Behandeln von Gegenständen

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* Cited by examiner, † Cited by third party
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JPH0665523A (ja) * 1992-08-19 1994-03-08 Toyota Motor Corp ハイソリッド塗料及び塗装方法
DE9419641U1 (de) * 1994-12-07 1995-02-02 Duerr Gmbh & Co Rotationszerstäuber mit einem Glockenkörper
DE19851139A1 (de) * 1998-11-05 2000-05-11 Basf Ag Verfahren und Vorrichtung zur Herstellung von gehärteten Lackschichten
US20060108450A1 (en) * 2003-02-06 2006-05-25 Akzo Nobel Coating International B.V. Spray gun and process for application of actinic radiation-curable coating
DE102007012897A1 (de) 2007-03-17 2007-11-29 Daimlerchrysler Ag UV-Belichtungsraum

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DE102009052656A1 (de) 2011-05-12
EP2498919A1 (fr) 2012-09-19

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