EP0297520A2 - Procédé et dispositif pour vernir des pièces à surface électriquement isolante par application électrostatique ou par pulvérisation - Google Patents

Procédé et dispositif pour vernir des pièces à surface électriquement isolante par application électrostatique ou par pulvérisation Download PDF

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Publication number
EP0297520A2
EP0297520A2 EP88110336A EP88110336A EP0297520A2 EP 0297520 A2 EP0297520 A2 EP 0297520A2 EP 88110336 A EP88110336 A EP 88110336A EP 88110336 A EP88110336 A EP 88110336A EP 0297520 A2 EP0297520 A2 EP 0297520A2
Authority
EP
European Patent Office
Prior art keywords
painting
zone
conveyor
workpiece
insulating
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
Application number
EP88110336A
Other languages
German (de)
English (en)
Other versions
EP0297520B1 (fr
EP0297520A3 (en
Inventor
Rudolf Kreisler
Peter Minko
Friedrich Ludwig Siever
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axalta Coating Systems Germany GmbH and Co KG
Original Assignee
Herberts GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Herberts GmbH filed Critical Herberts GmbH
Publication of EP0297520A2 publication Critical patent/EP0297520A2/fr
Publication of EP0297520A3 publication Critical patent/EP0297520A3/de
Application granted granted Critical
Publication of EP0297520B1 publication Critical patent/EP0297520B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/002—Pretreatement
    • B05D3/005—Pretreatment for allowing a non-conductive substrate to be electrostatically coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B05D1/045—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field on non-conductive substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air

Definitions

  • the invention relates to a method and a device for painting metallic workpieces with an electrically insulating, non-conductive surface, in particular workpiece surfaces that have already been painted, or workpieces that consist entirely of an electrically non-conductive plastic, by electrostatic application or spray application.
  • the object of the present invention is to provide a method and a device for painting workpieces with an insulating surface, such as workpieces that have already been painted, by means of electrostatic techniques or spraying techniques, which lead to a uniform application of paint and thus to such a thing without interference effects.
  • the method according to the invention is therefore characterized in that a uniform charge state is generated on the workpiece surface before the coating is applied.
  • the surface can have a wide variety of electrical charge states, which can be demonstrated by measurement and can also be intentionally brought about beforehand by spraying on charges in order to explain the interference effects can.
  • the various electrical charge states - ranging from positive charging (polarity) to the charge-free state to negative charging (polarity) - have their causes in the treatment history. For example, by sanding out painting defects in the surface that has already been painted at least once, surface elements are generated that are charged by frictional electricity, the same thing happens with the so-called heads of the surface that has been painted at least once with sandpaper in order to flatten the surface.
  • Charge states are also generated by triboelectricity when the initial coating leaves the paint dryer (baking oven) and shrinking forces in the paint layer become slow as it cools down.
  • the vigorous blowing with air for the purpose of cooling the painted surface leads to electrical charges, the blowing speed for certain surface elements can be very different.
  • the various charging conditions by wiping the sanding dust with dry or damp dust-absorbing cloths, by blowing off sanding dust with compressed air and, if necessary, by passing the workpiece surface, which has already been painted at least once, through an electrostatic dust removal system, which generally still has residual charges on the surface leaves behind.
  • Mountain ridges and valleys arise where there are negative (pre) charges in narrower areas. Mountain ridges also tend to occur at the edge of negative (pre) charges.
  • the targeted and completely uniform charge state can be brought about either by applying unipolar air ions to the electrically insulating surface or by already painting the workpiece surface.
  • a unipolar state of the workpiece surface can be achieved with the aid of ionization electrodes or devices which are fed with a high DC voltage, so that a unipolar charged ion wind, namely a either positively or negatively charged ion wind or air flow, is generated.
  • the positive polarity is preferably used.
  • the positively charged air ion flow in addition to the improved paint condition - meaning a paint layer evenly distributed over the entire workpiece surface with a finely structured surface and good packing density, but without markings due to the avoided interference effects - there is also the avoidance or reduction of electrostatic adhesive forces Dusting. It is known that the majority of dusts that occur in paint shops are positively charged at 80% by weight. A targeted and completely uniform charge state with positive polarity of the insulating or already at least once painted workpiece surface then leads to the fact that the majority of the dusts do not affect this surface due to the electrostatic repulsive forces.
  • the method according to the invention makes it possible in particular to improve both the electrostatic application of paints, in particular metallic basecoats, and their applicator with conventional spraying devices. This makes it possible to achieve the same good effects in the electrostatic application of, for example, metallic basecoats as in the undisturbed spraying of such paints with normal compressed air guns by hand.
  • the procedure according to the invention makes it possible to carry out electrostatic painting, since interference effects due to special charge states of the paint droplets and partially the insulating - for example previously coated - workpiece surfaces are eliminated, which ensure a more uniform orientation and storage of the metal pigments and thus a more uniform effect formation with a defined absorption -, reflection and scattering behavior.
  • the invention also relates to an apparatus for performing the described method.
  • This device is characterized in that it has a conveyor system for the workpieces to be painted which passes through a painting zone which is preceded by an ionizing zone.
  • a targeted and completely uniform charge state is achieved on the workpiece surface.
  • the subsequent painting process can therefore take place under clear electrostatic conditions. This eliminates electrostatic interference caused by different charge states on the workpiece surface to be painted.
  • the ionization zone has ionization electrodes or ionization devices.
  • Known electrodes or devices such as are already in use, for example, for avoiding or reducing electrostatic dust adhesion forces can be involved.
  • ionization electrodes or devices are either fed in with high direct voltages to achieve unipolarly charged ion winds or air ion currents, the positive sense of polarity preferably being used, or they can also be fed in with high-tension alternating currents, producing an air ion flow which is approximately in the contains negative and positive air ions at the same time.
  • This air ion flow consisting of both types of air ions, is fed to the workpieces with an insulating surface in the ionization zone, with undesired electrostatic precharging on the workpiece surfaces (for example the surface of automobile bodies). or be avoided in some areas by creating a charge-neutral state.
  • the special conveyor is designed to allow the targeted and completely uniform state of charge and the subsequent painting process to be carried out under clearly controllable and controllable electrical conditions with regard to the application process technology and the safety rules and regulations to be observed.
  • the special conveyor for the bodies to be painted is preferably designed in the device according to the invention in such a way that the mounting or support elements for the bodies consist of insulators made of highly insulating material, such as highly insulating plastic or ceramic.
  • a normal floor conveyor can be used as a special conveyor, which is separated from the rest of the otherwise usual floor conveyor system and has insulators as support devices.
  • FIGS. 1 and 2 (FIG. 1 shows the top view; FIG. 2 shows the associated side view of a schematic diagram consisting of both figures with the designation "schematic diagram, controllable charging of the bodies with ionized air") describe an example of a device according to the invention.
  • Fig. 1 (top view) shows the special conveyor and the incoming and outgoing strands of the usual floor conveyor system (1) for car bodies. The bodies are transported from right to left in the figure.
  • the conventional floor conveyor system (1) lowers in front of the ionizing and painting zone.
  • the bodies are taken over by the special conveyor / special floor conveyor (2).
  • a special floor conveyor can be, for example, an endlessly rotating plate conveyor, see Fig. 2 (side view), the plates made of insulating material e.g. consist of plastic or ceramic. The arrangement of the plates is shown in Fig. 1 (supervision).
  • the special floor conveyor conveys the bodies through the ionizing and painting zone. Then the usual floor conveyor system returns to its original level, takes over the bodies and runs to the other operations in the usual way.
  • an intermediate transport system can also be switched on, which transfers each individual body from the usual floor conveyor system to the special floor conveyor.
  • the body to be painted which is usually located on a transport sled, is completely separated from the usual conveyor system, for example a floor conveyor system, through the ionization zone to create the appropriate charge and then through the zone for the painting process.
  • a transport sled On the special floor conveyor, the body to be painted, which is usually located on a transport sled, is completely separated from the usual conveyor system, for example a floor conveyor system, through the ionization zone to create the appropriate charge and then through the zone for the painting process.
  • the body On the outlet side of the special conveyor, the body is returned to the normal transport system. If necessary, an intermediate transport can also be activated here to help smoothly transfer the workpiece, in particular the body.
  • the metal masses of bodies to be painted with an insulating surface are always forcibly grounded in the area of the usual conveyor system. Due to the separation of the two transport systems, there is also a compulsory earthing via cable in the area of the special conveyor system for each individual body, but for safety reasons only in the event of malfunctions or when entering the system again in parallel in direct galvanic form.
  • the separation of the two transport systems also means, of course, the separation of, for example, bodies from the usual grounding, via the metal transport slides which are in direct contact with the ground, for example, with a floor conveyor system.
  • the transport slides are usually connected directly to the metal mass of each individual body, for example by means of conical metal pins.
  • the measurement of the current flowing out of the metal mass to earth is of great importance, since it can be seen from this whether the corresponding excess free charges generated by the influence flow out of the metal mass too quickly or in the desired sense, so that the targeted and completely uniform charge state is actually maintained.
  • the size of the current flowing from the metal mass of the body to earth is also used as a triggering element for a control system, which causes actuators consisting of high-resistance resistors and / or semiconductors connect the earth current line to limit the current so that this type of earthing then at least still remains effective as electrostatic earthing.
  • the special conveyor device of the device according to the invention as used in the method according to the invention, also allows a solution to this problem.
  • an earthed electrode touching the body surface can be installed on the special conveyor in such a way that it is and remains effective at a suitable point on the body surface in the entire electrostatic painting area.
  • This electrode can be designed in a foldable construction and can be folded away when it is no longer required for the workpiece in question.
  • the contacting electrode can be transported with the body to be painted via its own transport system, as long as it is required. For the next body, the electrode can be quickly returned, if necessary, by switching on an intermediate cleaning process.
  • a contactless spray electrode which is also grounded, can also be used according to a further embodiment of the invention.
  • the device according to the invention can therefore have corresponding measuring and control devices.
  • the above types of secured charge dissipation during the painting process benefit from the fact that the paint for contact charging has to have a certain conductivity (about 10 ⁇ 8 ohm ⁇ 81 x cm ⁇ 1 ⁇ a power of ten). Since the electrostatic painting process represents a re-painting and re-painting of the surface elements - starting from the surface area of a body, for example, where the electrodes (direct contact electrode or contactless syringe electrode) are supposed to be effective - the charge dissipation in question here becomes complete painting at first the body itself from the freshly applied paint - seen over the entire body surface - adopted.
  • FIGS. 1 and 2 represent an example of a device for painting workpieces with an insulating, non-conductive surface according to the invention. This device is particularly suitable for painting car bodies.
  • 1 denotes a conventional floor conveyor system, where 1a represents the incoming line and 1b the outgoing line.
  • a special conveyor 2 is designed as a separate floor conveyor.
  • the transfer takes place on a plate conveyor (e.g. made of plastic), whereby an intermediate transport can take place if necessary.
  • the special conveyor passes through the ionizing zone and the painting zone (E-statics).
  • the transfer takes place to the running line of the floor conveyor system, possibly via an intermediate transport.
  • Earthing elements 5 are provided in the special conveyor system depending on the division or arrangement of the plates. 6 shows a derivative that can be regulated, for example, via semiconductors.
  • the triggering element for the control is the current flowing out of the metal mass to earth (this is determined via a current measuring element, not shown).
  • a positive earthing 7 is provided, which is important in the event of a fault or when entering the system; positive earthing can be done, for example, in galvanic form.
  • 8 shows a positive earthing of the workpieces or bodies upon leaving the system, for example in galvanic form.
  • FIG. 2 clearly shows the lowering of the incoming line of the conventional floor conveyor system 1a, the renewed appearance of the outgoing line 1b in its original level, and the Special floor conveyor 2, which has, for example, plates made of plastic or ceramic.

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)
EP88110336A 1987-07-01 1988-06-29 Procédé et dispositif pour vernir des pièces à surface électriquement isolante par application électrostatique ou par pulvérisation Expired - Lifetime EP0297520B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873721703 DE3721703A1 (de) 1987-07-01 1987-07-01 Verfahren und vorrichtung zum lackieren von werkstuecken mit elektrisch isolierender oberflaeche durch elektrostatischen auftrag bzw. spritzauftrag
DE3721703 1987-07-01

Publications (3)

Publication Number Publication Date
EP0297520A2 true EP0297520A2 (fr) 1989-01-04
EP0297520A3 EP0297520A3 (en) 1990-03-07
EP0297520B1 EP0297520B1 (fr) 1993-05-05

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ID=6330658

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Application Number Title Priority Date Filing Date
EP88110336A Expired - Lifetime EP0297520B1 (fr) 1987-07-01 1988-06-29 Procédé et dispositif pour vernir des pièces à surface électriquement isolante par application électrostatique ou par pulvérisation

Country Status (4)

Country Link
EP (1) EP0297520B1 (fr)
JP (1) JPS6430674A (fr)
DE (2) DE3721703A1 (fr)
ES (1) ES2041283T3 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437383A1 (fr) * 1990-01-12 1991-07-17 Regie Nationale Des Usines Renault S.A. Procédé et dispositif de peinture électrostatique sur pièces plastiques
FR2657030A1 (fr) * 1990-01-12 1991-07-19 Renault Procede et dispositif de peinture electrostatique sur pieces plastiques.
EP0697254A3 (fr) * 1994-08-18 1997-06-04 Chichibu Onoda Cement Corp Méthode et appareil de revêtement électrostatique de poudre
WO1997022415A1 (fr) * 1995-12-20 1997-06-26 Ppg Industries, Inc. Depot electrostatique de particules de revetement chargees sur un substrat dielectrique
KR19980046324A (ko) * 1996-12-12 1998-09-15 위르겐 에르트만, 베른트 뮐러 비전도성 합성 수지 부재들의 코팅 방법
US5830274A (en) * 1995-12-20 1998-11-03 Ppg Industries, Inc. Electrostatic deposition of charged coating particles onto a dielectric substrate
EP0999249A2 (fr) * 1998-11-04 2000-05-10 Singulus Technologies AG Procédé pour éviter l'inclusion de bulles pendant la liaison par collage de substats pour supports d'information optique
WO2002011893A1 (fr) * 2000-08-10 2002-02-14 Inteko S.R.L. Procede de finissage d'un article manufacture par peinture a la poudre
ITUB20160041A1 (it) * 2016-02-02 2017-08-02 Eurosider Sas Di Milli Ottavio & C Apparato e metodo per il pretrattamento elettrostatico e disidratante di manufatti sottoposti a verniciatura a polvere o liquido

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0710364B2 (ja) * 1989-09-18 1995-02-08 本田技研工業株式会社 完成車のアース方法及びその装置
JP2619098B2 (ja) * 1989-12-27 1997-06-11 トリニティ工業株式会社 導電性塗料の静電塗装設備とそれに使用する集電レール
DE4103959A1 (de) * 1991-02-09 1992-08-13 Fraunhofer Ges Forschung Verfahren zur herstellung von beschichteten werkstuecken
JP3362230B2 (ja) * 1992-10-08 2003-01-07 日本パーカライジング株式会社 静電粉体塗装装置
DE4412084C1 (de) * 1994-04-08 1996-01-11 Fraunhofer Ges Forschung Werkstückträger zur Verwendung bei elektrostatischen Beschichtungsverfahren
DE10242177A1 (de) * 2002-09-10 2004-03-18 Volkswagen Ag Verfahren zur Beschichtung der Oberfläche eines Substrats
JP2006350019A (ja) * 2005-06-16 2006-12-28 Shicoh Eng Co Ltd レンズ駆動装置
DE102005032587A1 (de) * 2005-07-11 2007-01-25 Tecnobless Gmbh Kontaktentlackung von Lackierträgersystemen
JP5789412B2 (ja) * 2011-05-13 2015-10-07 株式会社メサック 静電粉体塗装装置及び塗装方法
JP2015100761A (ja) * 2013-11-26 2015-06-04 曙ブレーキ工業株式会社 支持具、粉体塗布システム、粉体塗布方法、及びキャリパ
JP2015127047A (ja) * 2013-11-26 2015-07-09 曙ブレーキ工業株式会社 粉体塗布システム、粉体塗布方法、キャリパの製造方法、及びキャリパ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH441062A (de) * 1964-09-23 1967-07-31 Gen Electric Verfahren zum Beschichten von Oberflächen in einer Corona-Entladung
DE1790220B2 (de) * 1968-09-30 1978-04-13 Hoechst Ag, 6000 Frankfurt Verfahren und Vorrichtung zum elektrostatischen Beschichten von Oberflächen mit elektrisch leitendem, halb- oder nichtleitendem Material
DE2755189B2 (de) * 1977-12-10 1980-11-27 Detmolder Lackfabrik Niesen & Soehngen, 4930 Detmold Verfahren zur Ausbildung geschlossener und festhaftender Lackschichten aus UV- oder ESH- Lacken auf inhomogenen, insbesondere teilweise bedruckten Substratoberflächen
DE3111478A1 (de) * 1981-03-24 1982-10-07 Herberts Gmbh, 5600 Wuppertal Kraftfahrzeug mit mehrschichtiger lackierung und verfahren zum mehrschichtigen lackieren
EP0223998A1 (fr) * 1985-10-23 1987-06-03 Klaus Kalwar Procédé et dispositif d'enduction simple ou multiple de surfaces, particulièrement de la surface intérieure d'un corps creux ouvert en plastique

Family Cites Families (5)

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DE2412012C2 (de) * 1974-03-13 1982-12-30 Herberts Gmbh, 5600 Wuppertal Verfahren zum Fixieren von härtbaren Lacken auf mit diesen beschichteten Gegenständen
JPS52145443A (en) * 1976-05-28 1977-12-03 Toyota Motor Corp Electrostatic deposition and jig
JPS5874167A (ja) * 1981-10-26 1983-05-04 Nippon Ranzubaagu Kk 静電塗装方法
JPS59193164A (ja) * 1983-04-15 1984-11-01 Nippon Ranzubaagu Kk 静電塗装装置
JPS6054755A (ja) * 1983-09-02 1985-03-29 R H Service:Kk 静電塗装装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH441062A (de) * 1964-09-23 1967-07-31 Gen Electric Verfahren zum Beschichten von Oberflächen in einer Corona-Entladung
DE1790220B2 (de) * 1968-09-30 1978-04-13 Hoechst Ag, 6000 Frankfurt Verfahren und Vorrichtung zum elektrostatischen Beschichten von Oberflächen mit elektrisch leitendem, halb- oder nichtleitendem Material
DE2755189B2 (de) * 1977-12-10 1980-11-27 Detmolder Lackfabrik Niesen & Soehngen, 4930 Detmold Verfahren zur Ausbildung geschlossener und festhaftender Lackschichten aus UV- oder ESH- Lacken auf inhomogenen, insbesondere teilweise bedruckten Substratoberflächen
DE3111478A1 (de) * 1981-03-24 1982-10-07 Herberts Gmbh, 5600 Wuppertal Kraftfahrzeug mit mehrschichtiger lackierung und verfahren zum mehrschichtigen lackieren
EP0223998A1 (fr) * 1985-10-23 1987-06-03 Klaus Kalwar Procédé et dispositif d'enduction simple ou multiple de surfaces, particulièrement de la surface intérieure d'un corps creux ouvert en plastique

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437383A1 (fr) * 1990-01-12 1991-07-17 Regie Nationale Des Usines Renault S.A. Procédé et dispositif de peinture électrostatique sur pièces plastiques
FR2657030A1 (fr) * 1990-01-12 1991-07-19 Renault Procede et dispositif de peinture electrostatique sur pieces plastiques.
EP0697254A3 (fr) * 1994-08-18 1997-06-04 Chichibu Onoda Cement Corp Méthode et appareil de revêtement électrostatique de poudre
US5915621A (en) * 1994-08-18 1999-06-29 Nippon Paint Co., Ltd. Electrostatic powder coating method and apparatus
US5830274A (en) * 1995-12-20 1998-11-03 Ppg Industries, Inc. Electrostatic deposition of charged coating particles onto a dielectric substrate
US5698269A (en) * 1995-12-20 1997-12-16 Ppg Industries, Inc. Electrostatic deposition of charged coating particles onto a dielectric substrate
WO1997022415A1 (fr) * 1995-12-20 1997-06-26 Ppg Industries, Inc. Depot electrostatique de particules de revetement chargees sur un substrat dielectrique
KR19980046324A (ko) * 1996-12-12 1998-09-15 위르겐 에르트만, 베른트 뮐러 비전도성 합성 수지 부재들의 코팅 방법
EP0999249A2 (fr) * 1998-11-04 2000-05-10 Singulus Technologies AG Procédé pour éviter l'inclusion de bulles pendant la liaison par collage de substats pour supports d'information optique
EP0999249A3 (fr) * 1998-11-04 2003-02-26 Singulus Technologies AG Procédé pour éviter l'inclusion de bulles pendant la liaison par collage de substats pour supports d'information optique
WO2002011893A1 (fr) * 2000-08-10 2002-02-14 Inteko S.R.L. Procede de finissage d'un article manufacture par peinture a la poudre
US7220459B2 (en) 2000-08-10 2007-05-22 Paradigma S.R.L. Method for finishing a manufactured article by powder painting
ITUB20160041A1 (it) * 2016-02-02 2017-08-02 Eurosider Sas Di Milli Ottavio & C Apparato e metodo per il pretrattamento elettrostatico e disidratante di manufatti sottoposti a verniciatura a polvere o liquido

Also Published As

Publication number Publication date
DE3880745D1 (de) 1993-06-09
DE3721703A1 (de) 1989-01-12
JPS6430674A (en) 1989-02-01
ES2041283T3 (es) 1993-11-16
EP0297520B1 (fr) 1993-05-05
EP0297520A3 (en) 1990-03-07

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