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  • 专利说明
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    • 专利摘要:
    METHOD AND APPLIANCE FOR ELECTROSTATIC COATING, comprises a device and method for coating by electrostatic powder painting, comprising the steps of continuously obtaining a working fluid consisting of air devoid of undesirable substances, supplying said working fluid between 0.5 bars and 10 bars in a container (2) containing a quantity of coating powder (3), extraction, from said container (2), of a first flow consisting of the working liquid and powder, atomization of said working fluid flow and powder with the working fluid at a pressure between 0.5 bars and 10 bars, supplying the working fluid at a pressure between 0.5 bars and 10 bars to create a second transport flow composed of working fluid and atomized powder , loading said second flow of working fluid and electrostatically atomized powder under pressure and sending said second flow electrostatically charged with working fluid and powder to taken on a substrate (1) at a temperature between -15 ° C and + 45 ° C.
    公开号:BR112015008124B1
    申请号:R112015008124-0
    申请日:2013-02-08
    公开日:2020-10-27
    发明作者:Ottavio Milli
    申请人:Eurosider S.A.S. Di Milli Ottavio & C；
    IPC主号:
    专利说明:

    APPLICATION FIELD
    [0001] The present application for a patent relates to a method and apparatus for electrostatic powder coating systems that exploit the use of a carrier fluid made up of air devoid of undesirable substances, together with ionization conditioning. and heat from said carrier fluid.
    [0002] In greater detail, the present application for a patent relates to a coating method and apparatus that uses as a paint carrier fluid a nitrogen / oxygen / argon rich mixture continuously obtained from compressed air during coating. TECHNICAL STATUS
    [0003] As is known, the current state of the art in powder coating systems provides for an electrostatic spraying system with a corona effect where, positioned (s) in the terminal part of the pistols, there is one or more needle (s) which produces (in) a charge in the powder to be attracted by the products to be coated or, otherwise, with the system known as "tribe", in which the powder is carried by the scrubbing in a purposely supplied tube.
    [0004] In both cases, the operational coating steps provide for powder entrainment, fluidized bed movement, atomization / nebulization of the powder and sending of the electrostatically charged powder on the substrate to be coated.
    [0005] It is also known that the peristaltic recovery of the dispersed powder is commonly obtained with compressed air, produced by a normal compressor.
    [0006] One of the known disadvantages is represented by the fact that the compressed air used enters with elements that are harmful for a perfect distribution penetration and the flow of the powder on the substrates to be coated such as, for example, moisture and particles hydrocarbons, due to the compression of air and suspended particles present in atmospheric air.
    [0007] Even if the coating operation is carried out in purposely designed spray booths or protected environments, the substrates to be coated suffer the effect of the relative humidity of the environment. This problem is felt to the extent that it gives rise to microbubbles that form between the substrate and the coating film and, over time, cracks may appear in the film itself with consequent problems of quality and detachment of the film.
    [0008] In this context, it should be remembered, in fact, that, according to the reference tables of the North American Standard Atmosphere, ambient air is made as follows:


    [0009] From these premises, follow the typical problems of conventional powder coating, which uses air without any treatment as a carrier fluid for the steps of the fluidized bed management, entrainment, nebulization and peristaltic recovery.
    [00010] Moisture contamination, vesicular pollution by hydrocarbon residues, as well as oily organic substances, consequently cause the formation of aggregates, the accumulation of dust, difficulty in dragging them in the distribution ducts, inhomogeneity of the nebulization and perfect spreading of the powder, in addition to lack of uniformity in the thicknesses with consequent difficulty in the flow of the coating.
    [00011] In addition, typical of electrostatic powder coating or liquid coating is the formation of the Faraday cage effect at the corners or at the ends of the perforations present in the product to be coated, which does not allow uniformity, perfect distribution, penetration and the flow of the dust, causing, in certain cases, the absence of the coating product such as, for example, in the corners or fins typical of electric motors or heat generators such as radiators or components of electric domestic heating devices and structures in steel in general.
    [00012] The difficulties in systems currently available for electrostatic charging of very fine powders in order to obtain high quality finishes are also known. In fact, it is difficult to obtain a powder of fine granules and nanometric powders to be loaded and to maintain the charge prior to impact on the products for a perfect nebulization and for a homogeneous distribution on surfaces or products of various types under the effect of electrostatic charge.
    [00013] Problems in systems for coating nanometric powder or fine powder that use traditional compressed air as a carrier, which enters together with polluting elements (including hydrocarbon particles, water particles and pollutant dust), are also known. diverse nature), making perfect powder flow, penetration and distribution on surfaces difficult.
    [00014] Despite all the mentioned disadvantages, the known systems, in any case, use only compressed air as the powder carrier fluid, even if it enters with particles of moisture and particles of oil vapors and volatile particles present in the atmosphere , thus causing the above problems. GOAL
    [00015] A first objective of the present patent application is, therefore, to propose an apparatus and a method for coating by electrostatic powder painting that will be free from the said disadvantages of known systems. SUMMARY
    [00016] The aforementioned objectives and additional objectives have been achieved with a method and apparatus for coating by electrostatic powder painting, according to one or more of the attached claims, providing for the use as a carrier fluid of a mixture of nitrogen. / oxygen / argon continuously obtained during the coating process with compressed air that is modified and used for the movement of the fluidized bed, powder entrainment, nebulization, peristaltic recovery and electrostatic charge with positive or negative ions of the powder from the bed fluidized.
    [00017] In greater detail, the air is "modified" in the sense that, taking as a reference the natural composition of the ambient air mentioned above, to implement the present application for a patent, the latter is almost completely devoid of oxygen and totally free of other undesirable substances present in the natural composition, thus obtaining a mixture composed exclusively of nitrogen / oxygen / argon in preferential percentages, referred to in this document, which also favors a synergistic effect with the ionization conditioning and the heat of the carrier fluid described below.
    [00018] As a preferred solution, but not indispensable, for the execution of the present patent application, said mixture is obtained through membranes for osmotic separation of hollow fiber or through a molecular sieve of carbon (CMS I carbon molecular sieve) using the pressure modulation absorption system (PSA | pressure-swing-absorption).
    [00019] A first advantage of the present patent application lies in the fact that, using air as a carrier, modified and enriched in nitrogen / oxygen / argon, the thrust speed increases considerably and creates a less turbulent flow and faster, being less affected by atmospheric agents, such as humidity and, therefore, allowing a better and more uniform distribution of the product on the surfaces.
    [00020] A second advantage is represented by the fact that the mixture obtained from nitrogen / oxygen / argon-modified air is substantially anhydrous and therefore free of moisture and hydrocarbon particles that are the source of vesicular pollution from products coating.
    [00021] An additional advantage is represented by the fact that, using the nitrogen / oxygen / argon mixture with a preload and maintaining an adequate temperature, both of the fluidized bed and of the spray guns, it is also possible to diversify two or more outlets, maintained at different outlet temperatures, which can be optimized for different areas of product coating and reduce coating times under any circumstances. This in fact allows for a higher speed of the reciprocating device that moves the guns to supply the powder in order to obtain greater uniformity and greater thicknesses in shorter times and the main advantages are achieved in the economy of the coating powder and in a higher productivity, in especially in robotic systems.
    [00022] An additional advantage is represented by the fact that, since the nitrogen / oxygen / argon mixture has a higher speed, an impact is created that allows better adherence of the powder on the products, thus achieving a better adhesion / penetration and powder flow, being impressed in the spray fan in a perfect mist, without dispersion of dust at the fan ends, limiting the rebound effect, thanks to the possibility of using smaller nozzles mounted on the pistols, compared to the use of the traditional compressed air.
    [00023] The above advantage is particularly felt in the case of robotic systems, since it reduces the negative effect of the spray gun movement.
    [00024] Yet another advantage is represented by the fact that the use of nitrogen / oxygen / argon-modified air guarantees a perfect homogeneity of the movement in the fluidized bed, given that said mixture is, in itself, anhydrous and entrainment, consequently ideal powder in the distribution ducts, as the guns are reached.
    [00025] However, an additional advantage of the present patent application is the possibility of using residual waste powder, previously treated in previous coating cycles.
    [00026] Currently, in fact, the residual powder can no longer be used in a percentage that varies between 15% and 30%, and its recovery leads to considerable savings from an economic and environmental point of view.
    [00027] According to a more advantageous use of the present patent application, the nitrogen / oxygen / argon mixture obtained from the compressed air that will be used to move the fluidized bed and the powder inlet for atomization / nebulization is preloaded with positive or negative ions upstream of the fluidized bed, or it is made to be statically neutral (that is, in a plasma state created by canceling the positive and negative charges in a purposely supplied deionizing chamber) in order to impose a preload on the powder before leaving the gun, acting on the particles of argon and residual oxygen present in the mixture used as a carrier to cancel the effect of the Faraday cage.
    [00028] Advantageously, the fact of moving the powder and imposing a preload with positive or negative ions, already in the fluidized bed, using mixtures of anhydrous nitrogen / oxygen / argon, leads to a better nebulization and a distribution with greater thickness uniformity due to the combined synergistic effect between the pre-charge and the final charge that is exerted by the guns in the nebulization phase.
    [00029] However, an additional advantage of the present patent application is the elimination of the aforementioned problems relating to systems for coating fine powder or nanometer powder using traditional compressed air as a carrier.
    [00030] Accordingly, with a more advantageous use of the present patent application, the carrier fluid can be conditioned by heat, either by heating or cooling, using devices specifically provided, for example, a refrigerator or other devices cooling systems, such as an ultra-compact plate heat exchanger formed by an air-to-air exchanger equipped with an evaporator and a slow flow separator, for example, a defroster with the function of maintaining the flow temperature at an approximate value between -15 ° C and 45 ° C, preferably 5 ° to 20 ° C throughout the year in order to obtain, in any environmental condition, a perfect atomization / nebulization of the powder.
    [00031] In particular, the higher temperatures, close to 45 and 50 ° C or higher, favor the drying stage of coated products in an oven. DESCRIPTION OF THE FIGURES
    [00032] The aforementioned advantages and additional advantages will be better understood by anyone with skills in the technique from the following description and the attached drawings, which are provided merely for the purpose of non-limiting examples and in which:
    [00033] Figure 1 is a schematic view of a first application of an apparatus, according to the present application for an invention patent, with ionization by means of the corona effect.
    [00034] Figure 2 is a schematic view of a first application of an apparatus, according to the present patent application, with ionization using the tribo system.
    [00035] Figure 3 is a schematic illustration of a unit with peristaltic recovery of dust from a spray painting booth.
    [00036] Figure 4 is a schematic illustration of a step of separating the gases from the air, performed when using a hollow fiber membrane. DETAILED DESCRIPTION
    [00037] With reference to the drawings, an apparatus and a method, in accordance with the present application for a patent, are now described.
    [00038] In the example of the illustrated application, a source 3 of a fluidizing fluid is provided which is emitted into a container 2 containing an amount of coating powder 4.
    [00039] The fluid has the function of keeping in a dispersed and not agglomerated form the powder that must be sprayed on a substrate to be coated 1.
    [00040] Container 2 communicates downstream with an atomizer device 18, which in turn communicates with a source 13 of atomizing / nebulizing fluid and a source 5 of a carrier fluid under a pressure which, through an appropriate pipe 6, it must transmit the flow of carrier fluid and atomized powder to a spray nozzle 7 of a gun 17, capable of providing a coating fan 16.
    [00041] Furthermore, arranged upstream of the nozzle 7, means 8 are found, in themselves known for electrostatically charging the flow of carrier fluid and the powder.
    [00042] In different applications, the means 8 can consist of an electrode 8 fed with a high voltage 12, located in the vicinity of the nozzle 7 (Figure 1) or a tribo tube crossed by the flow of the carrier fluid and the powder (Figure 2) in contact with the tube walls.
    [00043] According to the present patent application, fluid sources 3, 5 and / or 13 are sources of a nitrogen / oxygen / argon mixture composed of nitrogen on a scale of 80 to 98% vol. , oxygen on a scale of 1 to 90% by vol., argon on a scale of 1 to 2% by vol., more preferably, nitrogen on a scale of 90 to 96% by vol., oxygen on a scale of 4 to 10% by vol., Argon on a scale of 1 to 2% by vol.
    [00044] Thanks to the present application for a patent, it has been found (Table 1) that while the speed of the compressed air at a pressure of 1 bar (as in conventional systems) is 7.24 m / s with a turbulence of 43 , 41%, using a mixture of nitrogen and oxygen with 0.9% argon, the speed increases from 7.24 m / s to 13.17 m / s, reducing turbulence to 35.79%.
    [00045] Advantageously, the coating powder, if pushed by a less turbulent and faster carrier fluid, is less affected by atmospheric agents, such as humidity and, therefore, allows a better and more uniform distribution of the powder on the surface of the substrate 1. Table 1

    [00046] According to a new advantageous aspect of the present patent application, the source 3 of fluidizing fluid is a source of a mixture as described above, which allows, thanks to the anhydrous nature of nitrogen, a better fluidity of the powder in the container to be obtained, preventing the presence of moisture and the formation of agglomerates.
    [00047] As an additional feature of the present application, the apparatus further comprises means 11 adjusted upstream of said container 2 to electrostatically charge said flow of fluidizing fluid, preferably constituted by the mixture described above, before its entry into the container.
    [00048] Advantageously, this solution allows an increase in the charge of positive or negative ions of the powder in a simple way and without the use of ionization systems integrated in the fluidized bed.
    [00049] In addition to improving the conditions of the fluidized bed, the preload advantageously allows an increase in the electrostatic charge of the flow of the mixture and the powder before leaving the spray nozzle and, consequently, eliminating or considerably limiting the cage effect of Faraday for covering points that are difficult to access, such as corners or recesses in metallic bodies.
    [00050] According to an additional feature of the present patent application, it is envisaged to use one or more heat conditioners 10, 19 preferably adjusted upstream of the container 2 and / or the gun 17 to maintain said mixture and the flow of the mixture and the atomized powder at the desired temperature, for example, a temperature comprised between -15 ° C and 45 ° C, preferably 5 ° to 20 ° C.
    [00051] In addition, according to the present application for a patent, the possibility of conditioning and regulating the temperature of the fluid flow and atomized powder upstream of the spray guns is offered in order to optimize the temperature, according to environmental conditions and the substrate to be coated. Preferably, the temperature regulation is obtained by a heating device, for example, a reservoir with electrical resistances, crossed by the fluid, possibly connected to the pistols through a transport tube 60 equipped with means to heat the fluid, for example, resistances electrically helical for better heat exchange and adjusted contact time within the tube.
    [00052] Preferably, the working mixture is a mixture of gases obtained from air modified in nitrogen / oxygen / argon produced with hollow fiber membranes (see the diagram in Figure 4) or with an activated carbon system, known as PSA (absorption with pressure modulation) at a constant temperature of - 15 ° C and 45 ° C, preferably from 5 ° to 20 °.
    [00053] With reference to the preferred applications illustrated in the attached drawings, the operation of the apparatus, in accordance with the present application for a patent, provides to supply a working fluid consisting of the mixture described above in container 2, in which a quantity has been introduced powder coating 3.
    [00054] The introduction of the mixture, which is electrostatically pre-charged, determines the formation of a fluidized bed consisting of powder and mixture.
    [00055] Inserted in container 2 is a tube 14, which, at the other end, communicates with an atomizer 18. Extracted through the tube, there is a flow composed of working fluid and powder brought to the atomizer by the mixture entering the atomizer a from source 5 and out towards gun 17 through tube 6.
    [00056] From the container, moreover, a discharge outlet 15 is provided for the mixture and for the residual powder.
    [00057] In the case of Figure 1, also supplying to the atomizer 18, there is the source 13, which carries a pressurized flow of the mixture that is designed to ensure the proper entrainment of the powder to the gun.
    [00058] Again, in the case of Figure 1, provided in the vicinity of the spray nozzle 7, there is an electrode 8, provided by a high voltage generator to electrostatically charge the outflow of the mixture and powder.
    [00059] At the same time, the substrate 1 to be coated is maintained at a neutral voltage (grounded), such that the flow of mixture and atomized powder collides on top of it and forms the coating layer.
    [00060] Preferably, the mixture entering the container and / or the mixture of powder and powder reaching the gun 17 are thermally conditioned to maintain a temperature between -15 ° C and 45 ° C, regardless of the external temperature conditions and the period of the year.
    [00061] There is, illustrated in Figure 2, an apparatus with an operation similar to the one just described, but in which the flow of the carrier mixture is delivered by the source 13 upstream of a tribe tube 20, of a type known per se, wherein both the carrier mixture and the mixture flow and atomized powder converge so that they are positively charged by the contact before being sent to substrate 1 by the spray nozzles 7.
    [00062] The present application for a patent therefore achieves the important advantages listed below: A. Since the mixture described above, obtained from nitrogen / oxygen / argon-modified air is anhydrous, it is therefore anhydrous , free of moisture and hydrocarbon particles that are at the origin of vesicular pollution from coating products, with a speed of 13.17 m / s. B. Since the carrier fluid is conditioned by heat through heating and / or refrigeration equipment, specially designed, it achieves the purpose of obtaining a perfect atomization / nebulization of the powder and guarantees a constant temperature throughout the year, for example, by means of a refrigerator capable of maintaining the temperature of the fluidized bed between -15 ° C and 45 ° C. C. The nitrogen / oxygen / argon mixture obtained from the compressed air that is used to move the fluidized bed in the container and / or to drag the respective powder and atomization / nebulization is preloaded with positive or negative ions to impose a pre -load on the powder before it leaves the spray gun nozzle. The electrostatic preload, acting on the residual oxygen and argon particles present in the carrier mixture, eliminates the Faraday cage effect described above; D. The nitrogen / oxygen / argon mixture is faster than the conventionally used compressed air and creates an impact of the powder that, in this way, adheres better to the products, creating a better adherence and flow of the powder, impressing the air spray fan. a perfect nebulization without any dispersion of dust at the fan ends as a result of the movement of the guns, as occurs, for example, in robotic systems. E. The use of air modified in nitrogen / oxygen / argon guarantees a perfect homogeneity of nebulization in the fluidized bed, given that the mixture is anhydrous and also due to the respective perfect dragging in the tubes for distribution in the guns. F. The jet of nitrogen / oxygen / argon eliminates the moisture present in the products, which prevents the perfect adherence of the powder and the creation of microbubbles. G. The use of the nitrogen / oxygen / argon mixture eliminates any problems regarding the formation of masses or aggregates of dust in the fluidized bed, since the latter is anhydrous, that is, free of moisture.
    [00063] Advantageously, according to the present patent application, it can also be provided that the flow of the working mixture is distributed for use through tubes coated with conductive polytetrafluoroethylene (PTFE | polytetrafluoroethylene) with fiberglass filling, for example, the material marketed under the trade name Teflon®, in that with that solution the ions that are transported inside the tube are not dispersed.
    [00064] Teflon, therefore, eliminates the problem of dispersion of ions from the carrier mixture along the path inside the tube.
    [00065] Schematically described with reference to Figure 3 there is a unit for coating a substrate 1 in a spray painting booth 25, where the powder 4 emitted by the guns 17 is collected by a funnel 26 located under the grid 30 of the plane of the plane. coating and is conducted through a first duct to an accumulation container 28 and through a second duct 29 to a fluidized bed container 2, according to the present patent application.
    [00066] Advantageously, thanks to the present patent application, the powder 4 collected by the funnel is transported by an electrostatic mixture of nitrogen / oxygen / argon which reduces the formation of agglomerates and improves the efficiency of the recovery of the powder.
    [00067] the present application for a patent has been described according to preferred applications, but equivalent variants can be designed without, however, departing from the sphere of protection of the present application for a patent. Legend of Figure 4 Tl) Gas permeation T2) Air inlet T3) Fast gas H2O, H2, He T4) Average gas CO2, CO T5) Separate slow gas N2, Argon, O2 T6) Diffusion.
    权利要求:
    Claims (12)
    [0001]
    1. "METHOD FOR ELECTROSTATIC COATING", of a substrate (1), consisting of the steps of: supplying a working fluid between 0.5 bars and 10 bars in a container (2) containing a quantity of coating powder (3 ); extracting, from said container (2), a first flow composed of working fluid and powder; atomizing said flow of working fluid and powder with a jet of working fluid at a pressure between 0.5 bars and 10 bars; supplying the working fluid at a pressure between 0.5 bars and 10 bars to create a second transport flow composed of working fluid and atomized powder; loading said second flow of working fluid and electrostatically atomized powder under pressure; and sending said second flow of working fluid and electrostatically atomized powder onto a substrate (1), said method being characterized by: said working fluid being a mixture composed of nitrogen on a scale of 80 to 98%, oxygen in a scale of 1 to 90%, argon on a scale of 1 to 2%; said mixture being continuously obtained during coating by taking the ambient air and depriving it of residual substances, not included in said composition; and said working mixture is electrostatically pre-charged upstream of the entrance to said container with positive and / or negative ions, according to the desired final electrostatic charge.
    [0002]
    2. "METHOD FOR ELECTROSTATIC COATING", according to claim 1, characterized in that said flow of the mixture being introduced into the container (2) is thermally conditioned in an adjustable way to maintain a temperature between -15 ° C and +45 ° C, preferably between 5 ° C and 20 ° C.
    [0003]
    3. "METHOD FOR ELECTROSTATIC COATING", according to any one of the preceding claims, characterized in that it comprises a step of regulating the temperature of the flow of the mixture and powder before being sent to said substrate.
    [0004]
    4. "METHOD FOR ELECTROSTATIC COATING", according to any one of the preceding claims, characterized in that said mixture is a mixture of gases obtained from the air modified in nitrogen / oxygen / argon produced with hollow fiber membranes or PSA system.
    [0005]
    5. "METHOD FOR ELECTROSTATIC COATING" according to any one of the preceding claims, characterized in that it comprises a step of peristaltic recovery of the powder from the spray booth (25) to the container (2).
    [0006]
    6. "ELECTROSTATIC COATING EQUIPMENT" for substrates (1), consisting of: a container (2), containing powder for coating (4) supplied by a source (3) of a working fluid; an atomizer (18), communicating with said container and with at least one source (5) of the working fluid under pressure; a source (13) of a working fluid under pressure to transmit a flow of atomized working fluid and powder along a tube (6) to at least one spray device (17) provided with at least one spray nozzle (7); and a means (8) for electrostatically charging said flow of working fluid and powder, located between said container (2) and said spray nozzle (7), said apparatus being characterized by said sources (3, 5, 13) working fluid are sources of modified air, comprising nitrogen on a scale of 80 to 99, 9%, oxygen on a scale of 1 to 90% and argon on a scale of 0.9 to 2%, and understanding means (11) to electrostatically charge said working mixture flow upstream of said container (2) with positive and / or negative ions, according to the desired final charge, whether positive, negative or neutral, or in a plasma state.
    [0007]
    7. "ELECTROSTATIC COATING APPLIANCE", according to claim 6, characterized in that said sources (3, 5, 13) of said working mixture comprise hollow fiber membrane devices for the separation of nitrogen / oxygen / modified air / argon from compressed air.
    [0008]
    8. "ELECTROSTATIC COATING EQUIPMENT", according to claim 6 or 7, characterized in that said sources (3, 5, 13) of said working mixture comprise molecular sieve devices for the separation of nitrogen / oxygen modified air / argon from compressed air.
    [0009]
    9. "ELECTROSTATIC COATING EQUIPMENT" according to any one of claims 6 to 8, characterized in that it comprises heat conditioning means (19) provided with a refrigerator and / or heating means, defined upstream of said nozzle ( 7), in order to maintain the said flow of atomized powder and mixture at a temperature between -15 ° C and + 45 ° C and to optimize the temperature according to the environmental conditions and the substrate to be coated.
    [0010]
    10. "ELECTROSTATIC COATING EQUIPMENT" according to any one of claims 6 to 9, characterized in that it comprises a heat conditioning device (10) provided with a refrigerator defined upstream of the container (2) in order to maintain the said workflow of the mixture at a temperature between -15 ° C and + 45 ° C, preferably between 5 ° C and 20 ° C.
    [0011]
    11. "ELECTROSTATIC COATING APPLIANCE" according to any one of claims 6 to 10, characterized in that said working mixture is distributed through tubes coated with conductive polytetrafluoroethylene with fiberglass filling to eliminate ions dispersion over the along the path inside the tube.
    [0012]
    12. "ELECTROSTATIC COATING EQUIPMENT" according to any one of claims 6 to 11, characterized in that it comprises means for the peristaltic recovery of the powder (4).
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2208312A5|1972-11-27|1974-06-21|Air Ind|
    US4027607A|1976-04-20|1977-06-07|Continental Can Company, Inc.|Pulsed powder application system|
    CA1268672A|1986-01-23|1990-05-08|Reinhold Hoffman|Process and apparatus for applying chilledelectrostatically charged particles to the surface of a large metal article|
    DE3743864C2|1987-12-23|1992-03-19|Praezisions-Werkzeuge Ag, Rueti, Zuerich, Ch|
    US5167714A|1989-09-29|1992-12-01|Nordson Corporation|Powder coating system with configurable controller and dew point detection|
    US5370911A|1990-04-20|1994-12-06|The University Of Akron|Method of depositing and fusing charged polymer particles on continuous filaments|
    US5397605A|1992-05-29|1995-03-14|Barbieri; Girolamo|Method and apparatus for electrostatically coating a workpiece with paint|
    ITFI20010088A1|2001-05-14|2002-11-14|Eurosider S A S Di Ottavio Mil|MEMBRANE APPARATUS FOR THE PRODUCTION OF GASEOUS NITROGEN|
    ES2271209T3|2002-01-25|2007-04-16|EUROSIDER S.A.S. DI MILLI OTTAVIO & C.|MEMBRANE APPARATUS TO TREAT FOOD AIR IN DEVICES FOR PAINTING BY SPRAYING.|
    FI118542B|2002-03-14|2007-12-14|Metso Paper Inc|Finishing process|
    JP4409910B2|2003-10-31|2010-02-03|日本ペイント株式会社|Spray coating apparatus and coating method|
    DE102004036157A1|2004-07-26|2006-02-16|Osram Opto Semiconductors Gmbh|Electromagnetic radiation emitting optoelectronic component and light module|
    ITBO20040518A1|2004-08-09|2004-11-09|Eurosider S A S Di Milli Ottavio|DEVICE AND METHOD FOR THE PRODUCTION OF GASEOUS NITROGEN UNDER PRESSURE, IN PARTICULAR INTENDED FOR PAINTING|
    JP5668269B2|2007-01-30|2015-02-12|Smc株式会社|Dehumidification air system|
    ITTV20070090A1|2007-05-22|2008-11-23|Walmec Spa|PNEUMATIC PAINTING EQUIPMENT WITH SPRAY GUN, WITH HEATER AND DEHUMIDIFIER / DRYER DEVICE PROVIDED WITH A REGENERATION DEVICE FOR THE ADSORBENT AGENT TO FLUIDIFY THE PAINT.|
    WO2009056950A1|2007-10-31|2009-05-07|Eurosider Sas|Spray painting device with ionization of the carrier fluid|
    US8298619B2|2009-05-22|2012-10-30|Nike, Inc.|Method and apparatus for applying a topcoat to a golf ball surface|
    JP5369945B2|2009-07-08|2013-12-18|富士通株式会社|Configuration information setting method and information processing apparatus|
    JP5712955B2|2012-03-21|2015-05-07|株式会社デンソー|Powder coating equipment|
    ITFI20130132A1|2013-06-03|2014-12-04|Eurosider Sas Di Milli Ottavio & C|METHOD AND APPARATUS FOR ELECTROSTATIC PAINTING BY MEANS OF ENRICHED OXYGEN VECTOR FLUID|USD732590S1|2013-04-19|2015-06-23|Cefla Societa' Cooperativa|Paint spray booth|
    ITFI20130133A1|2013-06-03|2014-12-04|Eurosider Sas Di Milli Ottavio & C|APPARATUS FOR PNEUMATIC PAINTING|
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    JP6095081B6|2015-06-16|2018-06-27|有限会社ミクロコスモス|Control device for coating carrier gas|
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    CN105690246B|2016-03-29|2018-08-24|贵州省新材料研究开发基地|A kind of wheel grinding method and system of electrostatic spraying lubricant coating|
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    WO2019113229A1|2017-12-06|2019-06-13|A.O. Smith Corporation|Water heater with organic polymer coating|
    CN107930879A|2017-12-20|2018-04-20|中山市雅乐思商住电器有限公司|A kind of electrostatic powder vertical spraying equipment|
    EP3517214A1|2018-01-30|2019-07-31|Chiara Lippi|A spray surface treatment device|
    IT201800002157A1|2018-01-30|2019-07-30|Chiara Lippi|SURFACE SPRAY TREATMENT DEVICE|
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    IT201900012357A1|2019-07-19|2021-01-19|Pentris S R L|Method and equipment for improving the transfer efficiency and the quality of the painting process|
    CN110919515B|2019-10-30|2020-11-03|广西盛隆冶金有限公司|Integrated system for deep descaling and derusting and uniform painting on surface of steel bar|
    DE102020100470A1|2020-01-10|2021-07-15|Bastian Schnitzhofer|Process for foiling a surface|
    法律状态:
    2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: B05B 5/03 (2006.01), B05B 5/16 (2006.01), B05B 7/1 |
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-03-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-09-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-27| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/02/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    IT000205A|ITFI20120205A1|2012-10-10|2012-10-10|METHOD AND APPARATUS FOR ELECTROSTATIC PAINTING|
    ITFI2012A000205|2012-10-10|
    PCT/IT2013/000040|WO2014057508A1|2012-10-10|2013-02-08|Method and apparatus for electrostatic painting|
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