EP3936236B1 - Procédé de revêtement des objets et installation de laquage des objets - Google Patents

Procédé de revêtement des objets et installation de laquage des objets Download PDF

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Publication number
EP3936236B1
EP3936236B1 EP21184261.2A EP21184261A EP3936236B1 EP 3936236 B1 EP3936236 B1 EP 3936236B1 EP 21184261 A EP21184261 A EP 21184261A EP 3936236 B1 EP3936236 B1 EP 3936236B1
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EP
European Patent Office
Prior art keywords
drying
curing
painting
paint
minutes
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EP21184261.2A
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German (de)
English (en)
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EP3936236A1 (fr
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Thomas Mayer
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Individual
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Individual
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    • 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
    • B05D3/02—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 baking
    • B05D3/0254—After-treatment
    • B05D3/0263—After-treatment with IR heaters
    • 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
    • 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
    • B05D3/007—After-treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/1693—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed with means for heating the material to be sprayed or an atomizing fluid in a supply hose or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2416—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2491—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • 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
    • B05D2503/00—Polyurethanes
    • 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
    • B05D3/12—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 mechanical means
    • 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
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to a method for coating objects by applying, drying, curing and after-treating moisture-curing paint systems to the object according to the preamble of claim 1.
  • the invention also relates to a system for painting objects according to the preamble of claim 9.
  • Another disadvantage is that with such methods, the objects have to remain in the closed space, in particular the respective paint booth, after coating until they have reached a dust-dry and/or handleable state, and thus the space, in particular the paint booth, during the curing of the block coating. During this time no further objects can be in be coated in the closed space, especially in the paint booth, and this is therefore not optimally utilized.
  • the JP 2016 019940 A discloses an apparatus and method in which moisture-curing silicone is sprayed with heated and humidified compressed air.
  • DE 10 2018 118206 A1 a similar device and method in which moisture-curing paint system is sprayed with heated and humidified compressed air.
  • a hose heater within the device is also disclosed.
  • U.S. 2,498,339 A deals with the safety aspect, in which the curing takes place by means of infrared radiation outside the paint booth.
  • the bodywork shown in the illustrations is lifted out of the paint booth into a curing chamber with infrared elements using a lifting platform.
  • Disclosed for the purpose of easy and faster painting of very long and large rotor blades U.S. 2013/095248 A1 each mobile, independently movable painting and infrared drying chambers.
  • U.S. 2016/084573 A1 deals with the safety aspect, in which the curing takes place by means of infrared radiation outside the paint booth.
  • ignition-free chambers are set up between the paint booth and the drying ovens.
  • DE 10 2006 045642 A1 discloses a system with a number of parallel painting chambers and work stations in a clocked painting system in order to be able to use the clocked system more efficiently for different painting jobs that require different times.
  • a painting line is disclosed in which the painting chambers and the infrared chamber are separated from one another.
  • the body to be coated is first coated irradiated with long-wave IR radiation and then cooled to prevent the body from overheating.
  • a major disadvantage of these paint systems is that although after the drying phase has taken place up to so-called dust dryness, an accelerated process-reliable drying takes place, but then in a hardening phase the chemical reactions, after which post-processing, in particular a polishability of the painted object and / or stackability of the painted object and/or further processing of the painted object is reached, is slower and much more time is required compared to the drying phase.
  • the chemical reactions lead to further drying of the paint system in the sense of thorough drying and hardening of the paint system in the sense of curing.
  • the coating system can, for example, consist of a base coat and a clear coat.
  • the coating is carried out in closed rooms with supply air ducting and/or exhaust air ducting, in particular in paint booths. This prevents the coating from being exposed to negative external influences, such as dirt, additional heat, or additional moisture.
  • a major disadvantage of the prior art is that the infrared technology used has always had to be installed inside the paint booth in order to dry the freshly applied paint application with infrared so that the dry parts, e.g. an automobile or individual parts of a car, can be removed from the paint booth can be removed and/or brought out.
  • expensive and complex equipment has to be installed inside each painting booth and is therefore exposed to overspray (spray mist next to the object to be painted) and other dirt.
  • This expensive equipment has to be regularly cleaned, serviced and protected.
  • a corresponding technical installation within the paint booth also acts as a dirt trap and is therefore the cause of soiling of the paint surface.
  • the invention is therefore based on the object of developing a simpler, time-saving and energy-efficient method for coating objects, in which accelerated paint curing can take place. Furthermore, the object of the invention is a system for painting objects to propose a method for accelerated paint curing.
  • the chemical processes are chemically accelerated, particularly in the first phase, down to dust dryness, which are necessary for curing the respective coating, in particular moisture-curing paint systems. This enables these processes to be activated in a targeted manner, which can chemically accelerate the drying and curing time of the coating.
  • the coating of an object by spraying the moisture-curing paint system using the atomizing air or the atomizing gas inside a painting booth ensures that the object to be coated is protected from external influences such as dirt, heat and moisture inside a painting booth or similar and a process-reliable application of the moisture-curing paint system can be guaranteed.
  • the object After a drying time, the object is removed from the paint booth at a drying time, with the occurrence of a superficially dust-dry state and therefore a manageable state of the paint system occurring from the drying time. From this point on, the moisture-curing paint system is no longer susceptible to external influences such as dirt, heat or moisture in the way it was when it was applied inside the paint booth. The coated object can therefore now be exposed to external influences without affecting the coating result. This means that the paint booth can continue to be used to coat another object with a moisture-curing paint system.
  • the paint system can dry and/or further harden outside of the paint booth by irradiating the object with at least one infrared radiator for a curing time up to a curing time.
  • the effect of the radiation from the infrared radiator promotes the hardening process of the paint system. Because the infrared radiator is used outside the paint booth, the safety requirements, such as occupational safety, fire protection and/or explosion protection, can be guaranteed inside the paint booth and the use of cost-intensive systems that could be operated inside the paint booth can be avoided.
  • the paint booth can be used to coat another object.
  • the radiation energy released can be specifically absorbed by the paint system and the coated object can be spared from this through the targeted use of their radiation frequency.
  • a finalization step outside of the paint booth in particular the post-treatment of the painted object surface, ensures a final state of the paint system, in particular for a desired shine through polishing or preferably a surface seal. This can be used to upgrade the optical quality of the paint system and make it more resistant to external influences such as dirt or mechanical influences.
  • Additives can be specially tailored to the paint system used and the given environmental conditions, such as humidity or temperature, and thus enable targeted drying and curing of the paint system, in particular to optimize the drying time.
  • the supply of heat to a paint hose carrying the atomizing compressed air or the atomizing gas should be distributed along at least 50% of the hose length, preferably along at least 70% of the hose length, in particular along at least 90% of the total hose length.
  • the uniform heating of the painting hose ensures that the temperature of the atomizing compressed air or the atomizing gas remains the same and cooling through unheated areas of the painting hose can be avoided. In particular, this ensures controlled humidification of the atomizer compressed air or the atomizer gas, since condensation is avoided.
  • the infrared radiator is moved past the object during the irradiation and/or that the object is moved past the infrared radiator during the irradiation, in particular that the infrared radiator and the object are moved during the irradiation in such a way that they are moved relative to one another.
  • the infrared heater and the object can also be stationary during the irradiation.
  • the hardening time in method step e) is less than 10 minutes, preferably between 30 seconds and 5 minutes, in particular between 1 minute and 2 minutes.
  • a short curing time reduces the duration of exposure of the paint system to external influences in a state of high vulnerability to them.
  • a higher quality of the coating, in particular of the paint system can thus be achieved through a shortened curing time.
  • a significant shortening of the entire process can be achieved and an increase in capacity can be achieved.
  • drying time in method steps a) to e) is between 1 minute and 60 minutes, in particular between 10 minutes and 40 minutes, preferably between 15 minutes and 25 minutes, particularly preferably between 15 minutes and 20 minutes.
  • a short drying time enables the paint system to be post-treated in a timely manner. This ensures time savings in the entire painting process up to the completion of the object to be coated.
  • drying and/or curing in method step e) is carried out in a non-ATEX area (no explosion protection regulations). This enables the process to be used more flexibly and saves costs when installing the system. It can also be used in one place for several paint booths. The clear coat hardens outside the booth.
  • the painting booth is again loaded with a new object for painting during the curing time in method step e). This increases the utilization rate of the paint booth and more objects can be painted in less time.
  • the at least one infrared emitter is operated with reduced energy in order to obtain more process reliability with less energy consumption.
  • the invention also provides a system for painting objects using a method of the type and embodiments described above, the system comprising a plurality of painting booths and/or painting workstations and/or other surface processing workstations, these booths or workstations being in a closed room , have to work in particular under defined atmospheric conditions, and where the system comprises at least one drying and/or hardening station, and the drying and/or hardening station comprises at least one infrared radiator, and the drying and/or hardening station outside the cabins or workstations, is arranged in a free atmosphere, with at least one cabin and/or workstations being assigned to a drying and/or hardening station in the process.
  • the drying and/or hardening station is therefore available for more than one cabin and/or workstations and can therefore be used with a higher degree of utilization. This enables time and cost savings when coating objects.
  • the system comprises displaceable and/or fixed drying and/or hardening stations with at least one infrared portal and/or at least one infrared arc and/or at least one mobile infrared dryer.
  • the system comprises displaceable and/or fixed drying and/or hardening stations with at least one infrared portal and/or at least one infrared arc and/or at least one mobile infrared dryer.
  • infrared heaters By using several infrared heaters, a larger area can be irradiated and a more homogeneous irradiation can be made possible.
  • the use of different infrared heaters enables flexible use on objects of different shapes. This increases the quality of drying and/or curing and allows different objects to be processed.
  • the moisture-curing paint systems described such as those based on aspartan technology, also include other paint systems based on 2K.
  • the paint systems based on isocyanate, as well as other moisture-reacting or moisture-curing paint systems are meant.
  • post-treatment of the paint system is to be understood as meaning polishing of the painted object surface and/or assembly of the painted object and/or packaging of the painted object.
  • figure 1 shows the method according to the invention for coating objects by applying, drying, curing and after-treating moisture-curing paint systems on the object, using a system for painting objects according to the invention shown schematically.
  • the system includes a plurality of painting booths and/or painting workstations and/or other surface processing stations, such as large-part painting booths 1, workstations for individual parts and/or repairs 2 and workstations for preparation and/or touch-up coatings 3, or the like.
  • an object is painted by spraying the moisture-curing paint system by means of the atomizer compressed air or the atomizer gas inside a paint booth.
  • These cabins 1 or jobs 2.3 work in a closed room, especially under defined atmospheric conditions.
  • an atomizer compressed air or an atomizer gas is humidified.
  • An admixture, in particular a dosed addition of at least one additive, is also provided, as a result of which the curing process can be influenced precisely.
  • the atomizing compressed air or the atomizing gas is heated by a paint hose carrying the atomizing compressed air or the atomizing gas in order to promote drying and/or curing. This also prevents condensation. It is also provided that X times more of these large-scale painting booths 1, these jobs for individual parts and/or repairs 2, jobs for preparation and/or touch-up paint jobs 3, or the like can be present.
  • the object is then removed from the painting booth 1 or the workplace 2, 3 after a hardening time t1 at a drying time, with the occurrence of a superficially dust-dry state and thus a manageable state of the paint system from the drying time.
  • the advantage here is that the drying and/or further curing does not take place inside the paint booth and this can be used directly for coating another object. This increases the utilization rate of the paint booth.
  • the hardening time is less than 10 minutes, it is preferably between 30 seconds and 5 minutes, in particular between 1 minute and 2 minutes.
  • Another advantage of drying and/or further curing outside the booth is that this means that smaller booths can be used, it can be used with systems that cannot be retrofitted and a better surface of the object to be painted is made possible due to less dust.
  • the paint system is dried and/or further cured outside of the paint booth in an infrared drying system 4, for example by an infrared portal 5, an infrared arc 6, or a mobile infrared dryer 7, for example an electric and/or gas-catalytic dryer Infrared dryer 7. Due to its open environment, this can be designed as a non-ATEX area, which results in a significant cost reduction.
  • Another advantage is that one infrared station can be used for several painting booths, which enables a considerable reduction in costs.
  • the at least one infrared radiator 7 is moved past the object and/or that the object is moved past the infrared radiator 5.6, in particular that the infrared radiator and the object are moved in such a way that they are relatively be moved to each other.
  • a homogeneous drying and/or curing is relevant for a high quality of the coating, which can be generated by moving the infrared emitters.
  • the drying time in this process step is between 1 minute and 60 minutes, in particular between 1 minute and 40 minutes, preferably between 15 minutes and 25 minutes, particularly preferably between 1 minute and 20 minutes. It also envisages installing fixed systems and building them outside the cabin for multiple uses.
  • the system includes at least one drying and/or curing station, such as an infrared drying system 4.
  • the system can include several painting stations.
  • the drying and/or curing station comprises at least one infrared radiator, for example infrared portals 5, infrared arcs 6, mobile infrared dryers 7 or the like.
  • the drying and/or hardening station is arranged outside the cabins or workstations, in an open atmosphere, with at least one cabin 1 and/or workstations 2,3 being assigned to a single drying and/or hardening station in the process.
  • the paint system After the paint system has dried and/or cured outside of the paint booth by irradiation in the infrared drying system 4, the paint system can be treated outside of the paint booth in a finalization step, in particular by means of polishing and/or finalization 8 of the painted object surface, or processed further how to be assembled or packaged.
  • the main advantage is that this can be done within a few minutes, so that the entire drying process can take place in the shortest possible time and with the least possible loss of time.
  • this system with infrared drying outside the paint booth can also be installed for existing paint systems outside the paint booth, for example at existing pre-work places or post-work places in the non-ATEX area. Especially if the existing paint booth would be too small for this.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (16)

  1. Procédé de revêtement d'objets par application, séchage, durcissement et post-traitement de systèmes de laque durcissant à l'humidité sur l'objet, comprenant les étapes suivantes :
    a) l'humidification d'un air comprimé d'atomisation ou d'un gaz d'atomisation ;
    b) l'apport de chaleur à l'air comprimé d'atomisation ou au gaz d'atomisation ;
    c) le laquage de l'objet par pulvérisation du système de laque durcissant à l'humidité au moyen de l'air comprimé d'atomisation humidifié ou du gaz d'atomisation humidifié à l'intérieur d'une cabine de laquage ;
    d) le retrait de l'objet de la cabine de laquage à un instant de séchage, un état sec hors poussière en surface et donc un état manipulable du système de laque apparaissant à partir de l'instant de séchage ;
    e) le durcissement et/ou le durcissement supplémentaire du système de laque à l'extérieur de la cabine de laquage par exposition de l'objet à des rayons au moyen d'au moins un émetteur infrarouge pendant un temps de durcissement jusqu'à un instant de durcissement.
  2. Procédé selon la revendication 1, dans lequel, après le durcissement et/ou le durcissement supplémentaire selon l'étape de procédé e), le système de laque est post-traité à l'extérieur de la cabine de laquage dans une étape de finalisation, notamment au moyen d'un polissage de la surface d'objet laquée.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'apport de chaleur dans l'étape de procédé b) à l'air comprimé d'atomisation ou au gaz d'atomisation s'effectue à travers un tuyau de laquage conduisant l'air comprimé d'atomisation ou le gaz d'atomisation.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un additif est mélangé, notamment ajouté de manière dosée, à l'air comprimé d'atomisation ou au gaz d'atomisation.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un additif est mélangé, notamment ajouté de manière dosée, au système de laque.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'apport de chaleur à un tuyau de laquage conduisant l'air comprimé d'atomisation ou le gaz d'atomisation s'effectue le long d'au moins 50 % de la longueur du tuyau, de préférence le long d'au moins 70 % de la longueur du tuyau, notamment le long d'au moins 90 % de la longueur du tuyau.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'émetteur infrarouge est déplacé devant le composant et/ou en ce que le composant est déplacé devant l'émetteur infrarouge, notamment en ce que l'émetteur infrarouge et le composant sont déplacés de telle sorte que ceux-ci sont déplacés l'un par rapport à l'autre et/ou ne sont pas déplacés l'un par rapport à l'autre.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le temps de séchage dans l'étape de procédé d) est compris entre 1 minute et 60 minutes, notamment entre 2 minutes et 40 minutes, de préférence entre 5 minutes et 25 minutes, de manière particulièrement préférée entre 5 minutes et 15 minutes.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le temps de durcissement dans l'étape de procédé e) est inférieur à 20 minutes, de préférence inférieur à 15 minutes et particulièrement inférieur à 10 minutes et notamment inférieur à 5 minutes.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le séchage et/ou le durcissement dans l'étape de procédé e) est effectué dans une zone non ATEX, c'est-à-dire non soumise à des prescriptions de protection contre les explosions.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, pendant le temps de séchage d'un premier objet dans l'étape de procédé e), la cabine de laquage est à nouveau chargée avec un nouvel objet à laquer.
  12. Installation pour le laquage d'objets au moyen d'un procédé selon une ou plusieurs des revendications précédentes, l'installation comprenant au moins une cabine de laquage et/ou au moins un poste de travail de laquage et/ou au moins un autre poste de traitement de surface, cette cabine ou ce poste de travail devant travailler dans un espace fermé, notamment dans des conditions atmosphériques définies, caractérisée en ce que l'installation comprend au moins une station de séchage et/ou de durcissement, et la station de séchage et/ou de durcissement comprend au moins un ou plusieurs émetteurs infrarouges, et la station de séchage et/ou de durcissement est agencée à l'extérieur des cabines de laquage ou des postes de travail, dans une atmosphère libre et/ou dans une zone non ATEX.
  13. Installation pour le laquage d'objets selon la revendication 12, caractérisée en ce qu'au moins une cabine et/ou des postes de travail sont associés à une station de séchage et/ou de durcissement dans la séquence.
  14. Installation selon la revendication 12, caractérisée en ce que la station de séchage et/ou de durcissement comprend au moins un portique IR, et/ou un arc IR et/ou un séchoir IR mobile et/ou au moins un séchoir infrarouge installé de manière fixe.
  15. Installation selon la revendication 12, caractérisée en ce qu'au moins 2 cabines et/ou postes de travail sont associés à une station de séchage et/ou de durcissement dans la séquence.
  16. Installation selon la revendication 12, caractérisée en ce que les installations de séchage infrarouge agencées à l'extérieur des une ou plusieurs cabines de laquage peuvent également être utilisées pour d'autres processus de séchage.
EP21184261.2A 2020-07-07 2021-07-07 Procédé de revêtement des objets et installation de laquage des objets Active EP3936236B1 (fr)

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DE102020117901.4A DE102020117901A1 (de) 2020-07-07 2020-07-07 Verfahren zur Beschichtung von Objekten und Anlage zur Lackierung von Objekten

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EP3936236B1 true EP3936236B1 (fr) 2023-04-12

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498339A (en) * 1947-09-11 1950-02-21 William J Miskella Combination paint booth and baking oven
CA2012161C (fr) * 1989-06-12 1999-03-16 Yoshio Tomioka Appareil de peinture
DE102006045642A1 (de) * 2006-05-12 2007-11-15 Dürr Systems GmbH Beschichtungsanlage und zugehöriges Betriebsverfahren
DE102010023578B4 (de) * 2010-06-12 2018-02-22 Abb Ag Lackieranlage zum Beschichten / Lackieren eines langgestreckten Werkstückes
WO2014179878A1 (fr) * 2013-05-06 2014-11-13 Rjg Labs Inc. Tunnel de chaleur sans source d'inflammation
JP5897657B2 (ja) * 2014-07-14 2016-03-30 丸大鐵工株式会社 シリコーンコーティング方法及びシリコーンコーティング装置
EP3658294B1 (fr) * 2017-07-28 2022-11-02 Thomas Mayer Dispositif pour utiliser un gaz sous pression pour un dispositif de pulvérisation fonctionnant avec un gaz sous pression, procédé pour utiliser un gaz sous pression pour un dispositif de pulvérisation fonctionnant avec un gaz sous pression ainsi que procédé pour la pulvérisation d'un produit liquide

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DE102020117901A1 (de) 2022-01-13

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