EP0818245A1 - Projecteur triboélectrique, installation de projection de produit de revêtement et procédé de commande d'un tel projecteur - Google Patents
Projecteur triboélectrique, installation de projection de produit de revêtement et procédé de commande d'un tel projecteur Download PDFInfo
- Publication number
- EP0818245A1 EP0818245A1 EP97420104A EP97420104A EP0818245A1 EP 0818245 A1 EP0818245 A1 EP 0818245A1 EP 97420104 A EP97420104 A EP 97420104A EP 97420104 A EP97420104 A EP 97420104A EP 0818245 A1 EP0818245 A1 EP 0818245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- projector
- coating product
- channel
- triboelectric
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
Definitions
- the invention relates to a triboelectric projector of powder coating product, to a control process of such a projector and to a projection installation of coating product comprising such a projector.
- a triboelectric coating product projector powder is a projector in which the electrostatic charge of the coating product is obtained by contact rubbing particles of the coating product against one or more several surfaces of insulating material arranged along their trajectory.
- a projector of this type generally includes a coating product loading channel and is supplied from a coating material source such that, for example, a fluidized powder reservoir, through a supply duct in which a mixture of air circulates and coating product. It is known, for example from the request EP-A1-O 627 265, to provide an additional air supply in the spotlight near the arrival of the duct supply of air mixture and coating product.
- the air is injected substantially perpendicular to the main axis of the projector barrel, at right angles to the arrival of the supply duct for air and product mixture coating.
- This generates turbulence in the air mixture and coating product which cause phenomena complex. These phenomena influence the triboelectric charge obtained.
- this turbulence creates wear of the component parts of the projector at room level air mixture and coating product intake, so that projector maintenance operations should be scheduled at regular intervals.
- the invention solves all of these problems and proposes a triboelectric spotlight in which the triboelectric charge obtained can be precisely controlled thanks to the flow of dilution and / or acceleration air injected into the headlamp and in which wear phenomena are reduced compared to the prior art.
- the invention relates to a projector triboelectric powder coating product comprising a coating product loading channel, a conduit supply connecting a coating product source said projector, a mixture of air and coating product circulating in said conduit, a dilution air injector and / or acceleration of said mixture of air and product coating, characterized in that the outlet orifice of said injector is disposed in the path of said mixture of air and coating product in an interior chamber of said projector, downstream of the arrival of said conduit in said projector and upstream of the input of said charge channel.
- the incorporation of the dilution air and / or acceleration in the mixture of air and product coating leading to the arrival of the supply duct takes place efficiently and without turbulence likely to cause premature wear of parts projectors.
- the triboelectric charge can be controlled using the dilution air flow and / or acceleration delivered through the injector to the air mixture and coating product.
- the outlet of the injector is arranged substantially on the axis of symmetry of the charge channel, so that the air jet from dilution and / or acceleration is directed directly and symmetrically in the load channel. Thanks to this aspect of the invention we could show that the triboelectric charge of the powder forming coating material can be ordered thanks to the injector regardless of the air flow used in a Venturi pump connected upstream of the duct feed.
- the load channel is formed by an external tube and a central core of electrically insulating material, the tube external being provided on its external face with an electrically layer conductive earthed through a device current measurement. Thanks to this aspect of the invention, it is possible to measure the triboelectric charge obtained, this being proportional to the current detected by the device measured.
- the projector comprises means of controlling the instantaneous flow of air injected by the injector, these control means being controlled from the value detected by the current measuring device.
- the supply duct for air and product mixture coating opens axially into the projector, which allows to further limit the turbulence phenomenon and therefore wear of the projector.
- the invention also relates to a projection installation coating product comprising a headlamp conforming to the invention.
- the invention finally relates to a method for controlling a triboelectric projector which can be used with the projector of the invention.
- This process is characterized in that that it consists in measuring the load obtained in the channel charge and control the instantaneous air flow injected by the injector at this charge obtained in the charging channel.
- the instantaneous air flow injected is maintained at an optimal value depending on the triboelectric charge to be obtained.
- the process of the invention further consists in measuring the value of the return current at the earth of a conductive element arranged in contact with a component of the load channel.
- This aspect of the process of the invention is a practical and simple alternative for the load measurement obtained in the load channel.
- a triboelectric projector 1 of product of powder coating is fed from a reservoir 2 of powder coating product through a supply line 3 which can be flexible.
- the powder in the tank 2 is suspended by a flow of air delivered by a controlled source 4 through a pipe 5 and passing through a porous plate 6.
- a dip tube 7 is supported by a tab 8 above the tank 2 so that its end inferior enters the powder in suspension.
- a pump at Venturi 9 mounted at the upper end of the tube 7 is supplied by the controlled source 4 through a pipe 10.
- the air injected through the pipe 10 into the Venturi pump 9 sucks the powder suspended in tube 7 and injects it into the supply duct 3.
- the projector 1 is thus supplied with a mixture of air and coating material.
- Pipe 11 connects the controlled source 4 to the projector 1, the structure of which appears more clearly in Figure 2.
- the pipe 11 allows supply the projector 1 with dilution and / or acceleration air of the mixture of air and coating product which circulates in conduit 3.
- the headlamp 1 essentially consists of a load channel 12 defined between an external tube 13 and a central core 14 formed by a tube 14 a and two plugs 14 b and 14 c , of conical outer shape, able to be partially fitted into the ends of the tube 14 a .
- Each plug 14 b and 14 c carries two O-rings 14 d whose function is to immobilize it inside the tube 14 a .
- the projector also includes a body 16 provided with a threaded orifice 16 a inside which can be screwed a barrel 17 enveloping the whole of the structure forming the load channel 12.
- a spray nozzle 18 whose outlet section, single or multiple, is chosen according to the shape of the jet of air-powder mixture desired.
- Two rings 19 and 20 are respectively mounted at the upstream end and at the downstream end of the load tube 12 so as to immobilize the central core 14 inside the body 16 and the barrel 17, this making it possible to create the channel 12 between the inner surface of the outer tube 13 and the outer surface of the inner tube 14 a .
- the inlet of the load channel 12 is defined by orifices 19 a drilled in the ring 19 through which the mixture of air and coating product circulates.
- a mixture of inner chamber 21 is formed upstream of the input of the load channel in a nozzle 22 fitted in a central hole 16b of the body 16.
- the hub 22 carries on its outer surface two O-ring 22 is intended to immobilize it inside the orifice 16 b .
- the supply duct 3 is connected to the end piece 22 by means of a connector 23 and opens axially into the chamber 21, that is to say in the direction of the axis of symmetry XX ′ of the load channel which is the main axis of the projector.
- the pipe 11 is connected to the interior of the chamber 21 by means of an elbow fitting 24 mounted on an injector 25 whose outlet orifice 25 a is disposed in the chamber 21 on the path of the mixture of air and coating product in the projector 1 downstream of the arrival of the conduit 3 in the chamber 21 and upstream of the inlet 19 a of the charge channel 12.
- the orifice 25 a is disposed substantially on the axis XX 'so that the air injected through the injector 25 is directed towards the charge channel in a parallel direction and in the same direction than that of the mixture of air and coating product entering the chamber 21 through the connector 23.
- the turbulence generated in the chamber 21 is minimal and the wear of the nozzle 22 is low over time, this which reduces the operating cost of the triboelectric projector of the invention compared to the devices of the prior art, because the connector 23 which constitutes the inlet or outlet of the supply channel 3 and the orifice 25 has of the injector 25 are arranged along the axis XX '.
- the mixture of air and coating product entering the chamber 21 via the connector 23 strikes the rear of the injector 25, which has the effect of distributing the mixture of air and coating product in the chamber 21 and around the plug 14 b .
- the air injected through the orifice 25 a has a flow rate which can be controlled by the source 4 independently of the air flow rate injected into the Venturi pump 9, so that the speed of the air mixture and of the coating product in the channel 12 can be controlled by the source 4 through the pipe 11 independently of the flow rate of powder sucked by the pump 9.
- This speed of the mixture in the channel 12 is linked to the triboelectric charge obtained and one was able to show experimentally that, thanks to the invention, the triboelectric charge obtained is substantially proportional to the air flow injected by the injector 25. This therefore makes it possible to control the charge obtained in the device.
- a conductive fiber tube carbon 26 is housed in the barrel 17 around the outer tube 13 in contact with it over most of its length.
- the tube 26 therefore appears as a drain of charges electrostatic transmitted to the outer tube 13 by the particles powder.
- the tube 26 bears against a metal screw 27, the rod of which is connected to earth by an electric cable 28.
- an electric current flows through the tube 26 in direction of mass.
- the end of the cable 28 is welded to a washer 29 held in position on the rod of the screw 27 with a button 30.
- a current measuring device, such as an ammeter, 31 is arranged on the cable 28.
- the value of the current measured by the ammeter 31 is proportional to the triboelectric charge obtained in channel 12 and can therefore be considered as representative of this charge.
- the value of current detected by ammeter 31 is transmitted as input variable to a control unit 32 formed, by example, by a programmable controller or a microcomputer, which is a means of controlling the controlled source 4. More specifically, when a triboelectric charge value is desired, this is supplied to unit 32 as a value setpoint by an input device such as a keyboard 33. This value is associated, experimentally or by calculation, a current setpoint in the cable 28.
- the value of the current in the cable 28 is in permanence provided to the automaton or to the microcomputer 32 and this controls source 4 so that if the value of current measured by ammeter 31 is less than the value the flow rate in the pipe 11 is increased, that is to say that the acceleration and / or dilution air flow injected through injector 25 is increased. If on the contrary the value of the current measured by the ammeter 31 is greater at the set value, the control means 32 controls source 4 so that the flow in the pipe 11 be reduced.
- the air flow injected by the injector 25 is controlled, by means of control 32, by a loop regulator whose regulating variable is the detected value by the current measurement device constituted by the ammeter 31.
- a process of control of headlamp 1 characterized in that it consists of measure the charge obtained in charge channel 12 and at using the PLC or computer 32 to control the flow instantaneous air injected by the source 4 into the pipe 11 to through the injector 25 to the charge obtained in the channel 12.
- This method further includes measuring the value of the return to earth of the conductive element 26, which is arranged in contact with the tube 13, and to use this value as a variable representative of the load obtained in the channel.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Nozzles (AREA)
Abstract
Description
- la figure 1 est un schéma de principe d'installation d'un projecteur triboélectrique de produit de revêtement pulvérulent conforme à l'invention et
- la figure 2 est une vue en coupe longitudinale du projecteur de la figure 1.
Claims (9)
- Projecteur triboélectrique (1) de produit de revêtement pulvérulent comprenant un canal de charge (12) du produit de revêtement, un conduit d'alimentation (3) reliant une source (2) de produit de révêtement audit projecteur, un mélange d'air et de produit de revêtement circulant dans ledit conduit, un injecteur (25) d'air de dilution et/ou d'accélération dudit mélange d'air et de produit de revêtement, caractérisé en ce que l'orifice de sortie (25a) dudit injecteur est disposé sur le trajet dudit mélange d'air et de produit de revêtement dans une chambre (21) intérieure dudit projecteur, en aval de l'arrivée (23) dudit conduit dans ledit projecteur et en amont de l'entrée (19a) dudit canal de charge.
- Projecteur triboélectrique selon la revendication 1, caractérisé en ce que l'orifice de sortie (25a) dudit injecteur (25) est disposé sensiblement sur un axe de symétrie dudit canal de charge (XX').
- Projecteur triboélectrique selon la revendication 1 ou 2, caractérisé en ce que ledit canal de charge est formé d'un tube externe (13) et d'un noyau central (14) en matériau électriquement isolant, ledit tube externe étant muni, sur sa face externe, d'une couche électriquement conductrice (26) reliée à la masse à travers un dispositif de mesure de courant (31).
- Projecteur triboélectrique selon la revendication 3, caractérisé en ce qu'il comprend des moyens (4, 32) de contrôle du débit instantané d'air injecté par ledit injecteur (25), lesdits moyens de contrôle étant commandés à partir de la valeur détectée par ledit dispositif de mesure de courant (31).
- Projecteur triboélectrique selon la revendication 4, caractérisé en ce que ledit débit d'air injecté par ledit injecteur (25) est commandé par une boucle de régulation ayant pour variable réglante la valeur détectée par ledit dispositif de mesure de courant (31).
- Projecteur triboélectrique selon la revendication 5, caractérisé en ce que le conduit (3) d'alimentation en mélange d'air et de produit de revêtement débouchent axialement (XX') dans ledit projecteur (1).
- Installation de projection de produit de revêtement comprenant un projecteur selon l'une des revendications 1 à 6.
- Procédé de commande d'un projecteur triboélectrique (1) de produit de revêtement pulvérulent comprenant un canal de charge (12) du produit de revêtement, un conduit d'alimentation (3) reliant une source de produit de révêtement (2) audit projecteur, un mélange d'air et de produit de revêtement circulant dans ledit conduit, un injecteur (25) d'air de dilution et/ou d'accélération dudit mélange d'air et de produit de revêtement, caractérisé en ce qu'il consiste à mesurer la charge obtenue dans ledit canal de charge et à asservir le débit instantané d'air injecté par ledit injecteur à ladite charge obtenue dans ledit canal de charge.
- Procédé selon la revendication 8, caractérisé en ce qu'il consiste, en outre, à mesure la valeur du courant de retour à la terre d'un élément conducteur (26) disposé au contact d'un élément (13) constitutif dudit canal de charge et à utiliser la valeur ainsi obtenue comme une variable représentative de la charge obtenue dans ledit canal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9608894A FR2750897B1 (fr) | 1996-07-10 | 1996-07-10 | Projecteur triboelectrique, installation de projection de produit de revetement et procede de commande d'un tel projecteur |
FR9608894 | 1996-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0818245A1 true EP0818245A1 (fr) | 1998-01-14 |
EP0818245B1 EP0818245B1 (fr) | 2001-11-28 |
Family
ID=9494108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97420104A Expired - Lifetime EP0818245B1 (fr) | 1996-07-10 | 1997-07-02 | Projecteur triboélectrique, installation de projection de produit de revêtement et procédé de commande d'un tel projecteur |
Country Status (5)
Country | Link |
---|---|
US (1) | US5924631A (fr) |
EP (1) | EP0818245B1 (fr) |
AT (1) | ATE209530T1 (fr) |
DE (1) | DE69708528D1 (fr) |
FR (1) | FR2750897B1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999030830A1 (fr) * | 1997-12-04 | 1999-06-24 | Nordson Corporation | Dispositif pour detecter un flux de particules pulverulentes |
FR2820344A1 (fr) | 2001-02-08 | 2002-08-09 | Eisenmann France Sarl | Pulverisateur triboelectrique |
CN102671794A (zh) * | 2011-12-08 | 2012-09-19 | 吴江云峰金属购件涂装有限公司 | 一种劳伦斯电子加速器式静电喷枪 |
WO2014170374A1 (fr) * | 2013-04-17 | 2014-10-23 | Sames Technologies | Pompe a effet venturi et installation d'application de revetement de peinture |
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US6082628A (en) * | 1999-05-14 | 2000-07-04 | Board Of Trustees Of The University Of Arkansas | Powder charger and sprayer |
DE10213275C1 (de) * | 2002-03-25 | 2003-12-24 | Wagner Ag Altstaetten J | Injektor für eine Pulverbeschichtungsanlage |
WO2007011708A2 (fr) | 2005-07-15 | 2007-01-25 | Micell Technologies, Inc. | Stent a revetement polymere renfermant de la rapamycine amorphe |
WO2007011707A2 (fr) | 2005-07-15 | 2007-01-25 | Micell Technologies, Inc. | Enrobages polymeres renfermant de la poudre de medicament a morphologie commandee |
DE102005054545B4 (de) * | 2005-11-14 | 2013-08-22 | G. Theodor Freese Gmbh | Verfahren und Vorrichtung zur Innenbeschichtung von Rohren |
PL2019657T3 (pl) | 2006-04-26 | 2015-10-30 | Micell Technologies Inc | Powłoki zawierające wiele leków |
US9539593B2 (en) | 2006-10-23 | 2017-01-10 | Micell Technologies, Inc. | Holder for electrically charging a substrate during coating |
US11426494B2 (en) | 2007-01-08 | 2022-08-30 | MT Acquisition Holdings LLC | Stents having biodegradable layers |
CA2679712C (fr) | 2007-01-08 | 2016-11-15 | Micell Technologies, Inc. | Stents comportant des couches biodegradables |
JP2010527746A (ja) * | 2007-05-25 | 2010-08-19 | ミセル テクノロジーズ、インコーポレイテッド | メディカルデバイスコーティング用ポリマーフィルム |
CN102083397B (zh) | 2008-04-17 | 2013-12-25 | 米歇尔技术公司 | 具有生物可吸收层的支架 |
US9486431B2 (en) | 2008-07-17 | 2016-11-08 | Micell Technologies, Inc. | Drug delivery medical device |
US8834913B2 (en) | 2008-12-26 | 2014-09-16 | Battelle Memorial Institute | Medical implants and methods of making medical implants |
US20100239635A1 (en) * | 2009-03-23 | 2010-09-23 | Micell Technologies, Inc. | Drug delivery medical device |
US20100256746A1 (en) * | 2009-03-23 | 2010-10-07 | Micell Technologies, Inc. | Biodegradable polymers |
US9981072B2 (en) | 2009-04-01 | 2018-05-29 | Micell Technologies, Inc. | Coated stents |
WO2010121187A2 (fr) | 2009-04-17 | 2010-10-21 | Micell Techologies, Inc. | Endoprothèses vasculaires ayant une élution contrôlée |
EP2453834A4 (fr) | 2009-07-16 | 2014-04-16 | Micell Technologies Inc | Dispositif médical distributeur de médicament |
EP2531140B1 (fr) | 2010-02-02 | 2017-11-01 | Micell Technologies, Inc. | Endoprothèse et système de pose d'endoprothèse avec une capacité améliorée de pose |
US8795762B2 (en) * | 2010-03-26 | 2014-08-05 | Battelle Memorial Institute | System and method for enhanced electrostatic deposition and surface coatings |
US10232092B2 (en) | 2010-04-22 | 2019-03-19 | Micell Technologies, Inc. | Stents and other devices having extracellular matrix coating |
CA2805631C (fr) | 2010-07-16 | 2018-07-31 | Micell Technologies, Inc. | Dispositif medical d'administration de medicament |
US10464100B2 (en) | 2011-05-31 | 2019-11-05 | Micell Technologies, Inc. | System and process for formation of a time-released, drug-eluting transferable coating |
US10117972B2 (en) | 2011-07-15 | 2018-11-06 | Micell Technologies, Inc. | Drug delivery medical device |
US10188772B2 (en) | 2011-10-18 | 2019-01-29 | Micell Technologies, Inc. | Drug delivery medical device |
DE202013011934U1 (de) | 2012-04-13 | 2014-11-27 | Nordson Corporation | Pulverpistole, die zum Zuführen von einer Venturi- oder Dichtstrompumpe konfigurierbar ist |
EP2967803B1 (fr) | 2013-03-12 | 2023-12-27 | Micell Technologies, Inc. | Implants biomédicaux bioabsorbables |
WO2014186532A1 (fr) | 2013-05-15 | 2014-11-20 | Micell Technologies, Inc. | Implants biomedicaux bioabsorbables |
CN105170358A (zh) * | 2015-08-12 | 2015-12-23 | 浙江绿能塑粉有限公司 | 一种性能优良的热固性塑粉摩擦枪 |
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DE3303137A1 (de) * | 1982-02-18 | 1983-08-18 | Továrny strojírenské techniky koncern, 113 42 Praha | Verfahren zum elektrostatischen auftragen pulverfoermiger plaste und vorrichtung zur durchfuehrung dieses verfahrens |
SU1233953A1 (ru) * | 1984-10-29 | 1986-05-30 | Всесоюзный Проектно-Технологический Институт По Электробытовым Машинам И Приборам | Трибоэлектрический распылитель порошковых полимерных материалов |
DE3618630A1 (de) * | 1986-06-03 | 1987-12-10 | Gerhard Hestermann | Verfahren und vorrichtung fuer das beschichten mit kunststoffpulver |
EP0314049A2 (fr) * | 1987-10-27 | 1989-05-03 | Veb Infrarot-Anlagen Oranienburg | Pistolet à poudre à charge électrocinétique |
WO1992011950A1 (fr) * | 1991-01-11 | 1992-07-23 | Jason Industries Limited | Systeme de fluidisation de poudre |
WO1995024272A1 (fr) * | 1994-03-06 | 1995-09-14 | Sealflock Aktiebolag | Procede et dispositif d'application de fibres sur une surface |
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DE2938806A1 (de) * | 1978-09-26 | 1980-04-03 | Toyota Motor Co Ltd | Triboelektrische pulverspruehpistole |
DE3600808A1 (de) * | 1986-01-14 | 1987-07-16 | Esb Voehringer | Elektrostatische pulverspruehvorrichtung mit triboelektrischer pulveraufladung |
US5620138A (en) * | 1994-11-09 | 1997-04-15 | Nordson Corporation | Powder coating gun mounted diffuser and air cooled heat sink in combination with low flow powder pump improvements |
US5622313A (en) * | 1995-03-03 | 1997-04-22 | Nordson Corporation | Triboelectric powder spray gun with internal discharge electrode and method of powder coating |
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1996
- 1996-07-10 FR FR9608894A patent/FR2750897B1/fr not_active Expired - Fee Related
-
1997
- 1997-07-02 DE DE69708528T patent/DE69708528D1/de not_active Expired - Lifetime
- 1997-07-02 EP EP97420104A patent/EP0818245B1/fr not_active Expired - Lifetime
- 1997-07-02 AT AT97420104T patent/ATE209530T1/de not_active IP Right Cessation
- 1997-07-08 US US08/889,676 patent/US5924631A/en not_active Expired - Fee Related
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DE3303137A1 (de) * | 1982-02-18 | 1983-08-18 | Továrny strojírenské techniky koncern, 113 42 Praha | Verfahren zum elektrostatischen auftragen pulverfoermiger plaste und vorrichtung zur durchfuehrung dieses verfahrens |
SU1233953A1 (ru) * | 1984-10-29 | 1986-05-30 | Всесоюзный Проектно-Технологический Институт По Электробытовым Машинам И Приборам | Трибоэлектрический распылитель порошковых полимерных материалов |
DE3618630A1 (de) * | 1986-06-03 | 1987-12-10 | Gerhard Hestermann | Verfahren und vorrichtung fuer das beschichten mit kunststoffpulver |
EP0314049A2 (fr) * | 1987-10-27 | 1989-05-03 | Veb Infrarot-Anlagen Oranienburg | Pistolet à poudre à charge électrocinétique |
WO1992011950A1 (fr) * | 1991-01-11 | 1992-07-23 | Jason Industries Limited | Systeme de fluidisation de poudre |
WO1995024272A1 (fr) * | 1994-03-06 | 1995-09-14 | Sealflock Aktiebolag | Procede et dispositif d'application de fibres sur une surface |
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Title |
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DATABASE WPI Section Ch Week 8702, 14 January 1987 Derwent World Patents Index; Class A32, AN 87-013928, XP002027726 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999030830A1 (fr) * | 1997-12-04 | 1999-06-24 | Nordson Corporation | Dispositif pour detecter un flux de particules pulverulentes |
FR2820344A1 (fr) | 2001-02-08 | 2002-08-09 | Eisenmann France Sarl | Pulverisateur triboelectrique |
US6959884B2 (en) | 2001-02-08 | 2005-11-01 | Eisenmann France Sarl | Triboelectric sprayer |
CN102671794A (zh) * | 2011-12-08 | 2012-09-19 | 吴江云峰金属购件涂装有限公司 | 一种劳伦斯电子加速器式静电喷枪 |
WO2014170374A1 (fr) * | 2013-04-17 | 2014-10-23 | Sames Technologies | Pompe a effet venturi et installation d'application de revetement de peinture |
FR3004767A1 (fr) * | 2013-04-17 | 2014-10-24 | Sames Technologies | Pompe a effet venturi et installation d'application de revetement de peinture |
US9636695B2 (en) | 2013-04-17 | 2017-05-02 | Sames Technologies | Venturi pump and facility for applying paint coatings |
Also Published As
Publication number | Publication date |
---|---|
ATE209530T1 (de) | 2001-12-15 |
EP0818245B1 (fr) | 2001-11-28 |
FR2750897A1 (fr) | 1998-01-16 |
DE69708528D1 (de) | 2002-01-10 |
FR2750897B1 (fr) | 1998-09-18 |
US5924631A (en) | 1999-07-20 |
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