EP0283918A2 - Dispositif de revêtement électrostatique d'objets - Google Patents
Dispositif de revêtement électrostatique d'objets Download PDFInfo
- Publication number
- EP0283918A2 EP0283918A2 EP88104183A EP88104183A EP0283918A2 EP 0283918 A2 EP0283918 A2 EP 0283918A2 EP 88104183 A EP88104183 A EP 88104183A EP 88104183 A EP88104183 A EP 88104183A EP 0283918 A2 EP0283918 A2 EP 0283918A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- outer housing
- spray head
- electrode holder
- spray
- insulating material
- 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.)
- Granted
Links
- 238000009503 electrostatic coating Methods 0.000 title claims 2
- 239000000463 material Substances 0.000 claims abstract description 40
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 239000011810 insulating material Substances 0.000 claims abstract description 20
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 32
- 238000011109 contamination Methods 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 claims 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 13
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 13
- 238000005507 spraying Methods 0.000 abstract description 11
- 239000003973 paint Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000004922 lacquer Substances 0.000 abstract 1
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
-
- 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
- B05B5/053—Arrangements for supplying power, e.g. charging power
- B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes
-
- 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
- B05B5/025—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
- B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
Definitions
- the invention relates to a device for electrostatically coating workpieces according to the preamble of claims 1 and 8.
- Such a device for example for coating vehicle body shells, in which, in contrast to conventional systems, instead of the spray head, only one arrangement of external electrodes is placed at high voltage potential, is known to have significant advantages when using conductive spray materials such as so-called water-based paints (cf. DE-OS 34 29 075 and 36 09 240). In particular, significant insulation problems are avoided since the entire paint line system can be grounded up to the spray head. In such a device with external electrodes, however, it is extremely difficult to avoid contamination of the spray device, particularly in the area of the electrodes and their holder arrangement and the atomizer housing, by the coating material during operation with good application efficiency, which depends on a good charging of the sprayed coating material.
- the device known from DE-OS 34 29 075 is said to have only two, three or at most four charging electrodes, each of which is embedded in a plastic holder projecting radially from the outer housing of the spray head and projecting axially towards the workpiece to be coated.
- Each of these holders is firmly connected at the rear end to an annular body which is also made of plastic and is placed on the outer housing.
- the device described in DE-OS 36 09 240 is intended instead sen have a ring body made of insulating material surrounding the outer housing of the spray head at a distance, from which a plurality of needle-shaped electrodes protrude, possibly in finger-like approaches, and in which an electrical conductor which connects the electrodes in a ring-like manner and is connected to a high-voltage line is arranged insulated.
- this enables a more uniform spray pattern to be achieved than with only three or four individual electrodes.
- a more or less large proportion of the sprayed paint particles can be deposited instead of the workpiece to be coated to hike.
- the invention has for its object to provide a device that tends less in the area between the atomizer housing and the charging electrodes to contamination by the sprayed coating material than before.
- the coating material is atomized in a known manner and sprayed with a predominantly radial movement component.
- they are off sprayed particles are not initially charged, but they only receive their charge at a greater or lesser radial distance from the spraying edge in the ionization area of the electrodes, which charge the air in their environment by corona discharge.
- the color particles can migrate to the grounded workpiece due to the electrostatic field generated by the electrodes.
- the invention is based on the knowledge that the risk of self-coating of the device in the area up to the electrodes can be substantially reduced by appropriate design of the device, in particular by using suitable insulating materials or a combination of different insulating materials.
- a radial potential control can thereby be achieved, which takes into account the charging of the color particles which takes place only in the ionization region of the outer electrodes at a corresponding radial distance from the spray edge.
- the device shown in FIG. 1 contains a spray device in the form of a rotary atomizer 1 of the known bell type, the bell plate 2 forming the spray head of which can preferably be driven by an air turbine at high speed.
- a water-based paint or other conductive coating material runs along the axis of the spraying device from a storage system to the bell plate 2 supplying metal pipe 3, with which the entire coating material is laid to earth potential up to the spraying edge of the bell plate 2.
- the workpiece to be coated (not shown) is also at earth potential, that is, in the example described here, part of a vehicle body, which is arranged at an axial distance in front of the bell cup 2.
- the spray device has an outer housing 4 made of insulating plastic, in which a metallic inner housing 6 can be located.
- a cover 5 rotating with the bell plate 2 extends between the bell plate 2 and the end face of the outer housing 4 and, like the earthed bell plate 2, can be made of metal.
- the cover 5 could also be arranged as a separate component next to the bell divider.
- needle-shaped charging electrodes 10 are provided at uniform angular intervals on a circle concentric to the axis of the spraying device in order to charge the coating material which is essentially radially sprayed off from the spraying edge of the bell cup 2.
- the charging electrodes 10 are axially parallel with their main part embedded in finger-like protrusions 11 made of insulating material of a circular ring body 12 also made of insulating material and with their rear ends electrically conductively connected to a ring-shaped conductor 13 made of wire, which interconnects all electrodes and which is to be completely enclosed in the interior of the insulating body 12 for electrical insulation.
- the electrodes 10 and the conductor 13 are connected via a high-voltage cable 14 to a high-voltage generator, the voltage of which can typically be of the order of 60 to 100 kV.
- the ring body 12 is fastened to the spraying device by, for example, two spoke-like supports 15 made of insulating material, which can be clamped to the outer housing 4, for example (in a manner not shown) with a clamping ring.
- the number of charging electrodes 10 should be selected so that there is a sufficiently small distance between the electrodes to avoid a risk of contamination from the coating material on the front end face of the ring body 12.
- a pitch circle diameter of the electrodes of 400 mm for example at least about 18 electrodes should be used. If you choose a smaller or larger pitch circle diameter for the electrodes, their possible minimum number must be reduced or enlarged accordingly.
- the distance between the electrode tips should accordingly be between about 40 and 70 mm.
- the radially measured distance of the electrode tips from the spraying edge of the bell cup should be greater than twice the diameter (here approximately 70 mm) of the spraying edge.
- a currently preferred range of possible pitch circle diameters of the electrodes 10 is approximately 350 to 450 mm.
- the axial position of the electrode tips with respect to the plane of the spray edge is also important for the risk of contamination.
- the electrode tips are set back in the axial direction a certain distance behind the spray edge. This distance is chosen so that there is a usable compromise between the charging of the sprayed coating material, which becomes better as the distance decreases, and an increasing risk of contamination.
- axially measured distances between 25 and 60 mm and preferably approximately 50 mm have been found to be useful.
- the front ends of the charging electrodes should be set back axially by less than 1/3 of the distance of the electrode tips from the spray edge measured in the radial direction behind the plane of the spray edge.
- the radial supports 15 can consist of a tube, in the open end of which the annular body 12 with suitable radially inwardly projecting pins is inserted under sealing, as shown at 16.
- the ring body 12 can consist of a different plastic such as polyacetate (POM) for design and manufacturing reasons.
- the outer housing 4 should be free of recesses, openings and bores and should also not contain any screws or the like. If such fasteners are unavoidable, they should also be made of PTFE.
- the dielectric strength of the housing 4 should be at least 5 kV at least in the entire area where there is a risk of contamination from the sprayed coating material.
- a separate cover 8 which is made of a three-dimensional air-permeable material such as e.g. consists of a porous plastic body that can serve as condensation protection.
- a suitable material for this is e.g. commercially available under the name "Filtroplast”.
- the invention is not limited to the preferred exemplary embodiment shown with an insulating ring body and a relatively large number of outer electrodes, but is also suitable, for example, for the device known from DE-OS 34 29 075 mentioned, with electrodes arranged individually on each support.
- PTFE is essentially cheaper than other materials in terms of its own pollution.
- Various properties may play a role here, which differentiate PTFE from other plastics such as PP, POM and PVC or other insulating materials such as hard cardboard or ceramic.
- PTFE has practically no water absorption capacity, so its properties are hardly dependent on changes in air humidity.
- the radial potential control which also contributes to the reduction of self-pollution, by means of which, according to the first aspect of the invention mentioned at the beginning, the radial potential profile in the area of the spray device between the metallic inner housing 6 and the charging electrodes 10 is to be approximated to the radial potential distribution of the sprayed material also achieve by other means.
- the electrode holder arrangement should preferably consist of an insulating material on at least one radially extending part 15 and at least on the side facing the workpiece, the surface potential of which, during operation of the spraying device, is approximated in the radial direction to the potential distribution of the sprayed material, which among other things is characterized by the surface behavior relevant for self-charging and charge dissipation such as surface resistance can be achieved.
- all parts of the electrode holder arrangement should be at least approximately at the same electrical potential as the respective paint particles that would come or would come close to them when sprayed.
- radial continuous potential control in the area between the atomizer housing and electrodes is therefore preferable.
- ceramic can also be used as the material, for example for the tubular supports 15, instead of the preferred PTFE per se. Other materials with a surface resistance that is similar to that of ceramic, POM or PTFE may also be usable under certain circumstances.
- the spray head 2 and / or the cover 5 rotating with it can also consist, at least in part, of other material suitable for the desired potential control instead of metal, which is currently preferred.
- Fig. 2 shows a modified embodiment in this regard, in which a corresponding cover 8 ⁇ like a hood the entire Encloses the outside of the outer housing 4 ⁇ made of PTFE.
- An air gap 20 is left between the outside of the outer housing 4 ⁇ and the inside of the entire cover 8 ⁇ , with the exception of the axially front and rear edges, into which a line 21 leads for blowing air into this annular gap.
- the air escapes through the porous material of the cover 8 ⁇ .
- the cover 8 ⁇ may have an opening for the support 15 to pass through.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873709508 DE3709508A1 (de) | 1987-03-23 | 1987-03-23 | Vorrichtung zum elektrostatischen beschichten von werkstuecken |
DE3709508 | 1987-03-23 | ||
DE8709948U | 1987-07-20 | ||
DE8709948U DE8709948U1 (de) | 1987-07-20 | 1987-07-20 | Vorrichtung zum elektrostatischen Beschichten von Werkstücken |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0283918A2 true EP0283918A2 (fr) | 1988-09-28 |
EP0283918A3 EP0283918A3 (en) | 1989-11-02 |
EP0283918B1 EP0283918B1 (fr) | 1991-07-10 |
Family
ID=25853812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88104183A Expired - Lifetime EP0283918B1 (fr) | 1987-03-23 | 1988-03-16 | Dispositif de revêtement électrostatique d'objets |
Country Status (17)
Country | Link |
---|---|
US (1) | US4955960A (fr) |
EP (1) | EP0283918B1 (fr) |
JP (1) | JPH0661491B2 (fr) |
KR (1) | KR930004010B1 (fr) |
CN (1) | CN1010559B (fr) |
AU (1) | AU602963B2 (fr) |
BR (1) | BR8801279A (fr) |
CA (1) | CA1303345C (fr) |
CS (1) | CS275114B2 (fr) |
DE (1) | DE3863562D1 (fr) |
ES (1) | ES2004334B3 (fr) |
FI (1) | FI91720C (fr) |
HU (1) | HUT57086A (fr) |
MX (1) | MX169525B (fr) |
NZ (1) | NZ223920A (fr) |
PL (1) | PL158987B1 (fr) |
RU (1) | RU1806020C (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0509101A1 (fr) * | 1990-05-18 | 1992-10-21 | ABB Ransburg KK | Appareil de revetement electrostatique |
DE19611369A1 (de) * | 1996-03-22 | 1997-09-25 | Duerr Gmbh & Co | Rotationszerstäuber zum elektrostatisch unterstützten Beschichten von Gegenständen mit Farben bzw. Lacken |
FR2763263A1 (fr) * | 1997-05-14 | 1998-11-20 | Nihon Parkerizing | Pistolet de pulverisation de poudre par voie electrostatique |
DE10342188A1 (de) * | 2003-02-27 | 2004-09-16 | Dürr Systems GmbH | Glockenteller und Rotationszerstäuber |
WO2010051958A2 (fr) * | 2008-11-07 | 2010-05-14 | Dürr Systems GmbH | Composant de dispositif de revêtement, notamment cloche, et procédé de fabrication correspondant |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0641644Y2 (ja) * | 1989-01-13 | 1994-11-02 | エービービー・ガデリウス株式会社 | 静電塗装装置 |
JPH0342064A (ja) * | 1989-07-07 | 1991-02-22 | Ranzubaagu Gema Kk | 静電塗装装置 |
JPH0751167Y2 (ja) * | 1989-11-30 | 1995-11-22 | トリニティ工業株式会社 | 静電塗装用放電極 |
JPH04200758A (ja) * | 1990-11-30 | 1992-07-21 | Trinity Ind Corp | 回転霧化式静電塗装機のグリッド電極装置 |
JP2542892Y2 (ja) * | 1991-05-29 | 1997-07-30 | トリニティ工業株式会社 | 回転霧化式静電塗装機のグリッド電極装置 |
JPH04134449U (ja) * | 1991-05-29 | 1992-12-15 | トリニテイ工業株式会社 | 導電性塗料の静電塗装装置 |
US5843536A (en) * | 1992-12-03 | 1998-12-01 | Ransburg Corporation | Coating material dispensing and charging system |
DE4241176B4 (de) * | 1992-12-08 | 2005-12-22 | Focke & Co.(Gmbh & Co. Kg) | Vorrichtung zum Auftragen von Leim auf Zuschnitte für Klappschachteln |
US6105886A (en) * | 1995-05-19 | 2000-08-22 | Nordson Corporation | Powder spray gun with rotary distributor |
EP0828565B1 (fr) * | 1995-05-19 | 2002-09-18 | Nordson Corporation | Pistolet pulverisateur de poudre a distributeur rotatif |
WO2000054888A1 (fr) * | 1999-03-16 | 2000-09-21 | Abb Patent Gmbh | Pulverisateur a vitesse de rotation elevee comportant un anneau a air de guidage |
DE10115463A1 (de) * | 2001-03-29 | 2002-10-02 | Duerr Systems Gmbh | Zerstäuber für eine Beschichtungsanlage und Verfahren zu seiner Materialversorgung |
DE10115467A1 (de) * | 2001-03-29 | 2002-10-02 | Duerr Systems Gmbh | Werkzeugwechselsystem für eine Maschine |
DE10115472A1 (de) * | 2001-03-29 | 2002-10-10 | Duerr Systems Gmbh | Ventileinheit für eine elektrostatische Beschichtungsanlage |
DE10115470A1 (de) * | 2001-03-29 | 2002-10-10 | Duerr Systems Gmbh | Beschichtungsanlage mit einer Zerstäuberwechselstation |
DE10139088A1 (de) * | 2001-08-16 | 2003-02-27 | Duerr Systems Gmbh | Manipulatormaschine mit einer zu dem Arbeitsgerät geführten Leitungsanordnung |
DE10202711A1 (de) | 2002-01-24 | 2003-07-31 | Duerr Systems Gmbh | Zerstäuber für die elektrostatische Serienbeschichtung von Werkstücken |
DE10301942A1 (de) * | 2003-01-20 | 2004-07-29 | Dürr Systems GmbH | Hydraulisch dynamischer Monomolch |
DE10231421A1 (de) | 2002-07-11 | 2004-01-22 | Dürr Systems GmbH | Verfahren und System zur Versorgung eines Pulverbeschichtungsgerätes |
DE10233198A1 (de) * | 2002-07-22 | 2004-02-05 | Dürr Systems GmbH | Rotationszerstäuber |
DE10233199A1 (de) * | 2002-07-22 | 2004-02-05 | Dürr Systems GmbH | Turbinenmotor eines Rotationszerstäubers |
DE10233197A1 (de) * | 2002-07-22 | 2004-02-05 | Dürr Systems GmbH | Potentialausgleichsanordnung für einen elektrostatischen Rotationszerstäuber |
DE10239516A1 (de) * | 2002-08-28 | 2004-03-18 | Dürr Systems GmbH | Schlauch für die elektrostatische Beschichtung von Werkstücken |
DE10239517A1 (de) * | 2002-08-28 | 2004-03-11 | Dürr Systems GmbH | Beschichtungseinrichtung mit einem Rotationszerstäuber und Verfahren zum Steuern ihres Betriebes |
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DE10240451A1 (de) * | 2002-09-02 | 2004-03-11 | Dürr Systems GmbH | Sensoranordnung für eine Beschichtungsanlage |
DE10245594A1 (de) | 2002-09-30 | 2004-04-08 | Dürr Systems GmbH | Verfahren zur Kollisionserkennung |
US20050002742A1 (en) * | 2002-12-11 | 2005-01-06 | Martin Bachmann | Method and device for transporting powdery substances |
US6991178B2 (en) | 2003-01-24 | 2006-01-31 | Dürr Systems, Inc. | Concentric paint atomizer shaping air rings |
CA2537142C (fr) | 2003-08-27 | 2013-05-28 | Toyota Jidosha Kabushiki Kaisha | Machine a enduire electrostatique et procede de nettoyage de ladite machine |
JP2006051427A (ja) * | 2004-08-11 | 2006-02-23 | Anest Iwata Corp | 静電塗装用スプレーガン及び静電塗装方法 |
DE102005000983A1 (de) * | 2005-01-07 | 2006-07-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Universeller Ionisierungsaufsatz für ein Sprühgerät, elektrostatisches Sprühgerät und Sprühbeschichtungsverfahren zur Sprühbeschichtung |
EP1911522B1 (fr) * | 2005-08-01 | 2010-07-07 | Abb K.K. | Appareil de revetement electrostatique |
US20080011333A1 (en) * | 2006-07-13 | 2008-01-17 | Rodgers Michael C | Cleaning coating dispensers |
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US20090020626A1 (en) * | 2007-07-16 | 2009-01-22 | Illinois Tool Works Inc. | Shaping air and bell cup combination |
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US20110104385A1 (en) * | 2008-07-04 | 2011-05-05 | Abb Research Ltd. | Apparatus for electrostatically coating a workpiece and method of reducing contamination thereof |
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JP2015229163A (ja) * | 2014-06-06 | 2015-12-21 | 東芝三菱電機産業システム株式会社 | 水もしくは水溶性液体付着方法、水もしくは水溶性液体付着装置、成膜装置、水もしくは水溶性液体漏れ防止方法、水もしくは水溶性液体漏れ防止装置 |
CN104399613B (zh) * | 2014-11-24 | 2017-06-06 | 江苏大学 | 一种气助式扇形静电喷头 |
JP6880367B2 (ja) * | 2016-11-28 | 2021-06-02 | アネスト岩田株式会社 | 静電噴霧装置及び静電噴霧方法 |
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US3393662A (en) * | 1964-12-30 | 1968-07-23 | Ronald J. Blackwell | Apparatus for electrostatic spray coating |
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DD126675A5 (fr) * | 1975-06-19 | 1977-08-03 | ||
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DE3429075A1 (de) * | 1984-08-07 | 1986-02-20 | Hermann Behr & Sohn Gmbh & Co, 7121 Ingersheim | Vorrichtung zum elektrostatischen beschichten von gegenstaenden |
DE3609240A1 (de) * | 1986-03-19 | 1987-09-24 | Behr Industrieanlagen | Vorrichtung zum elektrostatischen beschichten von gegenstaenden |
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US3051394A (en) * | 1955-12-01 | 1962-08-28 | Interplanetary Res & Dev Corp | Electrostatic spray coating apparatus and method |
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GB901969A (en) * | 1958-01-31 | 1962-07-25 | Interplanetary Res & Dev Corp | Spray gun |
NL251152A (fr) * | 1959-05-20 | |||
US3843054A (en) * | 1971-03-22 | 1974-10-22 | Ransburg Electro Coating Corp | Powder apparatus |
IT984188B (it) * | 1972-05-26 | 1974-11-20 | Air Ind | Ugello di spruzzatura per prodot ti in polvere |
DE2412131C3 (de) * | 1974-03-13 | 1982-07-15 | Ernst Mueller Gmbh & Co, 7057 Winnenden | Vorrichtung zum elektrostatischen Überziehen von Gegenständen mit flüssigem oder pulverförmigem Überzugsmaterial |
US4079894A (en) * | 1976-07-14 | 1978-03-21 | Nordson Corporation | Electrostatic spray coating gun |
HU173207B (hu) * | 1976-11-10 | 1979-03-28 | Hajtomuevek Es Festoekeszuelek | Ustanovka dlja pul'verizacionnoj okraski s povorotnoj golovkoj i mnogoslojnym elektrodom |
US4771949A (en) * | 1984-10-29 | 1988-09-20 | Hermann Behr & Sohn Gmbh & Co. | Apparatus for electrostatic coating of objects |
DE3616684A1 (de) * | 1986-05-16 | 1987-11-19 | Behr Industrieanlagen | Zerstaeuber zum elektrostatischen beschichten von gegenstaenden |
-
1988
- 1988-03-16 ES ES88104183T patent/ES2004334B3/es not_active Expired - Lifetime
- 1988-03-16 DE DE8888104183T patent/DE3863562D1/de not_active Expired - Lifetime
- 1988-03-16 EP EP88104183A patent/EP0283918B1/fr not_active Expired - Lifetime
- 1988-03-17 NZ NZ223920A patent/NZ223920A/xx unknown
- 1988-03-21 RU SU884355345A patent/RU1806020C/ru active
- 1988-03-22 CS CS881871A patent/CS275114B2/cs not_active IP Right Cessation
- 1988-03-22 CN CN88101597A patent/CN1010559B/zh not_active Expired
- 1988-03-22 BR BR8801279A patent/BR8801279A/pt unknown
- 1988-03-22 KR KR1019880003045A patent/KR930004010B1/ko not_active IP Right Cessation
- 1988-03-22 HU HU881438A patent/HUT57086A/hu unknown
- 1988-03-22 MX MX010847A patent/MX169525B/es unknown
- 1988-03-22 FI FI881345A patent/FI91720C/fi not_active IP Right Cessation
- 1988-03-22 AU AU13376/88A patent/AU602963B2/en not_active Ceased
- 1988-03-22 CA CA000562070A patent/CA1303345C/fr not_active Expired - Lifetime
- 1988-03-23 PL PL1988271381A patent/PL158987B1/pl unknown
- 1988-03-23 JP JP63070813A patent/JPH0661491B2/ja not_active Expired - Lifetime
-
1989
- 1989-09-22 US US07/411,223 patent/US4955960A/en not_active Expired - Lifetime
Patent Citations (8)
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US2890388A (en) * | 1955-11-30 | 1959-06-09 | Gen Motors Corp | Electrostatic spray charger |
US3393662A (en) * | 1964-12-30 | 1968-07-23 | Ronald J. Blackwell | Apparatus for electrostatic spray coating |
US3408985A (en) * | 1966-11-07 | 1968-11-05 | Interplanetary Res & Dev Corp | Electrostatic spray coating apparatus |
DD126675A5 (fr) * | 1975-06-19 | 1977-08-03 | ||
DE2941884A1 (de) * | 1978-10-17 | 1980-04-24 | Asahi Okuma Ind Co | Duese fuer eine spritzpistole zur luftfreien aufbringung von elektrostatischen ueberzuegen auf an sich beliebige gegenstaende |
DE3319995A1 (de) * | 1982-06-10 | 1983-12-15 | Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa | Elektrostatisches spritzgeraet |
DE3429075A1 (de) * | 1984-08-07 | 1986-02-20 | Hermann Behr & Sohn Gmbh & Co, 7121 Ingersheim | Vorrichtung zum elektrostatischen beschichten von gegenstaenden |
DE3609240A1 (de) * | 1986-03-19 | 1987-09-24 | Behr Industrieanlagen | Vorrichtung zum elektrostatischen beschichten von gegenstaenden |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0509101A1 (fr) * | 1990-05-18 | 1992-10-21 | ABB Ransburg KK | Appareil de revetement electrostatique |
EP0509101A4 (en) * | 1990-05-18 | 1992-12-02 | Ransburg Automotive Kk | Electrostatic coating device |
DE19611369A1 (de) * | 1996-03-22 | 1997-09-25 | Duerr Gmbh & Co | Rotationszerstäuber zum elektrostatisch unterstützten Beschichten von Gegenständen mit Farben bzw. Lacken |
FR2763263A1 (fr) * | 1997-05-14 | 1998-11-20 | Nihon Parkerizing | Pistolet de pulverisation de poudre par voie electrostatique |
DE10342188A1 (de) * | 2003-02-27 | 2004-09-16 | Dürr Systems GmbH | Glockenteller und Rotationszerstäuber |
WO2010051958A2 (fr) * | 2008-11-07 | 2010-05-14 | Dürr Systems GmbH | Composant de dispositif de revêtement, notamment cloche, et procédé de fabrication correspondant |
WO2010051958A3 (fr) * | 2008-11-07 | 2010-07-15 | Dürr Systems GmbH | Composant de dispositif de revêtement, notamment cloche, et procédé de fabrication correspondant |
US10471445B2 (en) | 2008-11-07 | 2019-11-12 | Dürr Systems GmbH | Coating machine component including a functional element that is a coating |
Also Published As
Publication number | Publication date |
---|---|
KR930004010B1 (ko) | 1993-05-19 |
FI91720C (fi) | 1994-08-10 |
CS8801871A3 (en) | 1992-02-19 |
US4955960A (en) | 1990-09-11 |
EP0283918A3 (en) | 1989-11-02 |
EP0283918B1 (fr) | 1991-07-10 |
HUT57086A (en) | 1991-11-28 |
RU1806020C (ru) | 1993-03-30 |
ES2004334A4 (es) | 1989-01-01 |
CN1010559B (zh) | 1990-11-28 |
DE3863562D1 (de) | 1991-08-14 |
CN88101597A (zh) | 1988-10-05 |
FI881345A (fi) | 1988-09-24 |
JPH0661491B2 (ja) | 1994-08-17 |
AU602963B2 (en) | 1990-11-01 |
ES2004334B3 (es) | 1992-01-16 |
AU1337688A (en) | 1988-09-22 |
JPS63258665A (ja) | 1988-10-26 |
MX169525B (es) | 1993-07-09 |
CS275114B2 (en) | 1992-02-19 |
NZ223920A (en) | 1989-10-27 |
BR8801279A (pt) | 1988-10-25 |
CA1303345C (fr) | 1992-06-16 |
PL158987B1 (pl) | 1992-10-30 |
FI91720B (fi) | 1994-04-29 |
FI881345A0 (fi) | 1988-03-22 |
KR880010829A (ko) | 1988-10-24 |
PL271381A1 (en) | 1988-12-22 |
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