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WO2003004169A3 - Systemes de poudrage unipolaire mettant en oeuvre des pulverisateurs de tribochargement et des pulverisateurs a effet corona - Google Patents

Systemes de poudrage unipolaire mettant en oeuvre des pulverisateurs de tribochargement et des pulverisateurs a effet corona Download PDF

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Publication number
WO2003004169A3
WO2003004169A3 PCT/US2002/021382 US0221382W WO03004169A3 WO 2003004169 A3 WO2003004169 A3 WO 2003004169A3 US 0221382 W US0221382 W US 0221382W WO 03004169 A3 WO03004169 A3 WO 03004169A3
Authority
WO
WIPO (PCT)
Prior art keywords
tribocharging
powder
powder coating
corona
gun
Prior art date
Application number
PCT/US2002/021382
Other languages
English (en)
Other versions
WO2003004169A2 (fr
Inventor
Michael R Sanner
William R Rehman
Harry J Lader
Original Assignee
Nordson Corp
Michael R Sanner
William R Rehman
Harry J Lader
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
Priority claimed from US09/901,162 external-priority patent/US20030038193A1/en
Application filed by Nordson Corp, Michael R Sanner, William R Rehman, Harry J Lader filed Critical Nordson Corp
Priority to AU2002324470A priority Critical patent/AU2002324470A1/en
Publication of WO2003004169A2 publication Critical patent/WO2003004169A2/fr
Publication of WO2003004169A3 publication Critical patent/WO2003004169A3/fr

Links

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
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • 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
    • B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials
    • 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
    • B05B5/047—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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • 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
    • B05B5/0426—Means for supplying shaping gas

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

L'invention concerne une pluralité de matériaux de tribochargement négatif non classique utilisables comme surfaces de contact avec la poudre dans des pulvérisateurs de tribochargement et des pulvérisateurs à effet corona; des composants de pulvérisateurs et des composants d'un système de pulvérisation de poudres. L'invention concerne aussi un pulvérisateur de poudres de tribochargement à canon court présentant un insert et une buse de contact avec la poudre interchangeables, avec jets d'air induits par une turbulence. L'invention concerne également de nouvelles conceptions de pulvérisateurs de tribochargement ou à effet corona, ainsi que des systèmes de poudrage dans lesquels des pulvérisateurs de tribochargement négatif, par exemple, peuvent être utilisés avec des pulvérisateurs à effet corona négatif pour traiter des parties différentes d'une même pièce à usiner dans un système de poudrage. L'invention concerne en outre une configuration centrifuge dans laquelle de l'air sous pression dirige le matériau de poudrage vers l'extérieur sur une surface de chargement. Des configurations supplémentaires appliquent un tribochargement par jet d'air et des parties de tribochargement classiques combinés dans un seul pulvérisateur.
PCT/US2002/021382 2001-07-06 2002-07-08 Systemes de poudrage unipolaire mettant en oeuvre des pulverisateurs de tribochargement et des pulverisateurs a effet corona WO2003004169A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002324470A AU2002324470A1 (en) 2001-07-06 2002-07-08 Unipolarity powder coating systems including improved tribocharging and corona guns

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30360801P 2001-07-06 2001-07-06
US60/303,608 2001-07-06
US09/901,162 US20030038193A1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
US09/901,162 2001-07-09

Publications (2)

Publication Number Publication Date
WO2003004169A2 WO2003004169A2 (fr) 2003-01-16
WO2003004169A3 true WO2003004169A3 (fr) 2008-01-17

Family

ID=26973558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/021382 WO2003004169A2 (fr) 2001-07-06 2002-07-08 Systemes de poudrage unipolaire mettant en oeuvre des pulverisateurs de tribochargement et des pulverisateurs a effet corona

Country Status (2)

Country Link
AU (1) AU2002324470A1 (fr)
WO (1) WO2003004169A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013219813B4 (de) * 2013-09-30 2020-07-09 Gema Switzerland Gmbh Düse zum Zerstäuben von Beschichtungsmaterialien

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027730A1 (fr) * 1993-05-25 1994-12-08 Trinco Ab Dispositif d'enduction electrostatique
US5567468A (en) * 1994-10-11 1996-10-22 Schonbek Worldwide Lighting Inc. Method and apparatus for applying powder coatings to surfaces
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
EP0795589A1 (fr) * 1996-03-12 1997-09-17 Kao Corporation Revêtement en poudre
DE19909805C1 (de) * 1999-03-05 2000-10-26 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum elektrostatischen Pulverbeschichten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027730A1 (fr) * 1993-05-25 1994-12-08 Trinco Ab Dispositif d'enduction electrostatique
US5567468A (en) * 1994-10-11 1996-10-22 Schonbek Worldwide Lighting Inc. Method and apparatus for applying powder coatings to surfaces
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
EP0795589A1 (fr) * 1996-03-12 1997-09-17 Kao Corporation Revêtement en poudre
DE19909805C1 (de) * 1999-03-05 2000-10-26 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum elektrostatischen Pulverbeschichten

Also Published As

Publication number Publication date
AU2002324470A1 (en) 2003-01-21
AU2002324470A8 (en) 2008-03-13
WO2003004169A2 (fr) 2003-01-16

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