WO2002004127A3 - Unipolarity powder coating systems including improved tribocharging and corona guns - Google Patents

Unipolarity powder coating systems including improved tribocharging and corona guns Download PDF

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Publication number
WO2002004127A3
WO2002004127A3 PCT/US2001/021572 US0121572W WO0204127A3 WO 2002004127 A3 WO2002004127 A3 WO 2002004127A3 US 0121572 W US0121572 W US 0121572W WO 0204127 A3 WO0204127 A3 WO 0204127A3
Authority
WO
WIPO (PCT)
Prior art keywords
powder
tribocharging
powder coating
corona
guns
Prior art date
Application number
PCT/US2001/021572
Other languages
French (fr)
Other versions
WO2002004127A2 (en
Inventor
Michael Ross Sanner
William R Rehman
Harry J Lader
James W Messerly
Gerald W Crum
Alan John Knobbe
Sergey Guskov
Original Assignee
Nordson Corp
Michael Ross Sanner
William R Rehman
Harry J Lader
James W Messerly
Gerald W Crum
Alan John Knobbe
Sergey Guskov
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 Nordson Corp, Michael Ross Sanner, William R Rehman, Harry J Lader, James W Messerly, Gerald W Crum, Alan John Knobbe, Sergey Guskov filed Critical Nordson Corp
Priority to JP2002508575A priority Critical patent/JP2004502532A/en
Priority to AU2001276859A priority patent/AU2001276859A1/en
Priority to EP01954626A priority patent/EP1303356B1/en
Priority to KR10-2003-7000407A priority patent/KR20030022858A/en
Priority to DE60106617T priority patent/DE60106617T2/en
Priority to CA002413267A priority patent/CA2413267A1/en
Publication of WO2002004127A2 publication Critical patent/WO2002004127A2/en
Publication of WO2002004127A3 publication Critical patent/WO2002004127A3/en

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
    • 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
    • B05B1/26—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
    • B05B5/04—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
    • B05B5/0407—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 with a spraying edge, e.g. like a cup or a bell
    • 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
    • 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
    • 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
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
    • 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

A plurality of unconventional negative tribo-charging materials are described for use as the powder contact surfaces in tribocharging and corona powder spray guns, gun components, and powder delivery system components. The invention also provides a short barrel tribo-charging powder spray gun (200) having an interchangeable powder contact insert (220) and nozzle (230), with turbulence inducing air jets (240). The invention further provides novel tribocharging and corona gun designs. Improved powder coating systems are made possible wherein, for example, negative tribo guns can be utilized with negative corona guns to coat different parts of the same workpiece in a powder coating system. Also provided is an inside-out configuration in which pressurized air directs powder coating material outward towards a charging surface. Additional configurations provide air jet induced tribocharging and conventional tribocharging portions combined in a single gun.
PCT/US2001/021572 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns WO2002004127A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2002508575A JP2004502532A (en) 2000-07-11 2001-07-09 A monopolar powder coating mechanism including an improved triboelectric corona gun
AU2001276859A AU2001276859A1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
EP01954626A EP1303356B1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
KR10-2003-7000407A KR20030022858A (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns
DE60106617T DE60106617T2 (en) 2000-07-11 2001-07-09 UNIPOLAR POWDER COATING SYSTEMS WITH IMPROVED FRICTION CHARGING AND CORONAPISTOLS
CA002413267A CA2413267A1 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US21726100P 2000-07-11 2000-07-11
US60/217,261 2000-07-11
US72436300A 2000-11-28 2000-11-28
US09/724,363 2000-11-28

Publications (2)

Publication Number Publication Date
WO2002004127A2 WO2002004127A2 (en) 2002-01-17
WO2002004127A3 true WO2002004127A3 (en) 2002-06-13

Family

ID=26911775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/021572 WO2002004127A2 (en) 2000-07-11 2001-07-09 Unipolarity powder coating systems including improved tribocharging and corona guns

Country Status (8)

Country Link
EP (1) EP1303356B1 (en)
JP (1) JP2004502532A (en)
KR (1) KR20030022858A (en)
CN (1) CN1635932A (en)
AU (1) AU2001276859A1 (en)
CA (1) CA2413267A1 (en)
DE (1) DE60106617T2 (en)
WO (1) WO2002004127A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006019643B4 (en) * 2006-04-25 2008-09-25 Reinhold Gregarek Device for pneumatic, tribostatic powder coating of workpieces
CN102858469A (en) 2010-04-29 2013-01-02 阿克佐诺贝尔国际涂料股份有限公司 Method for applying a powder coating
CN102553744A (en) * 2011-12-08 2012-07-11 吴江云峰金属购件涂装有限公司 Spray gun with spot spraying function
US10040081B2 (en) 2012-04-13 2018-08-07 Nordson Corporation Powder gun configurable for supply from Venturi or dense phase pump
WO2014014502A1 (en) * 2012-07-16 2014-01-23 Nordson Corporation Powder gun configurable for supply from venturi or dense phase pump
DE102013205362A1 (en) * 2013-03-26 2014-10-02 Gema Switzerland Gmbh Spray coating gun for spray coating objects with coating powder
DE102013219813B4 (en) 2013-09-30 2020-07-09 Gema Switzerland Gmbh Nozzle for atomizing coating materials
JP5959488B2 (en) * 2013-10-09 2016-08-02 旭サナック株式会社 Powder coating method
CN104941833B (en) * 2015-06-16 2017-04-05 浙江大学 A kind of plasma nozzle, spray gun and spraying method
CN105170358A (en) * 2015-08-12 2015-12-23 浙江绿能塑粉有限公司 Thermoset plastic powder friction gun with excellent performance
CN106626767B (en) * 2016-12-09 2018-02-27 华中科技大学 A kind of air-flow auxiliary EFI print shower nozzle for being integrated with grounding electrode

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225090A (en) * 1979-09-07 1980-09-30 Toyota Jidosha Kogyo Kabushiki Kaisha Device for painting by electrostatic powder spraying
US4798340A (en) * 1986-01-14 1989-01-17 Esb Elektrostatische Spruh- Und Beschichtungsanlagen G.F. Vohringer Gmbh Electrostatic device for powder spraying with triboelectric powder charging
EP0592137A1 (en) * 1992-10-05 1994-04-13 Nordson Corporation Tribo-electric powder spray gun
EP0627265A1 (en) * 1993-06-02 1994-12-07 Matsuo Sangyo Co., Ltd. Frictional electrification gun
US5395046A (en) * 1993-10-25 1995-03-07 Nordson Corporation Hand-held spray gun with replaceable handle
WO1995024272A1 (en) * 1994-03-06 1995-09-14 Sealflock Aktiebolag Method and device for application of fibres on a surface
US5487624A (en) * 1993-02-22 1996-01-30 I.T.M. Corporation Powder feeding apparatus, electrostatic powder coating apparatus and powder flow-rate measuring apparatus
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
WO1999001227A1 (en) * 1997-07-04 1999-01-14 University Of Southampton Improved targeting of flying insects with insecticides and apparatus for charging liquids
US5885351A (en) * 1997-02-18 1999-03-23 Pfs Thermoplastic Powder Coatings, Inc. Tribocharge applicator device
WO1999061166A1 (en) * 1998-05-22 1999-12-02 Sarnoff Corporation Focused acoustic bead charger/dispenser for bead manipulating chucks
US6032871A (en) * 1997-07-15 2000-03-07 Abb Research Ltd. Electrostatic coating process

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225090A (en) * 1979-09-07 1980-09-30 Toyota Jidosha Kogyo Kabushiki Kaisha Device for painting by electrostatic powder spraying
US4798340A (en) * 1986-01-14 1989-01-17 Esb Elektrostatische Spruh- Und Beschichtungsanlagen G.F. Vohringer Gmbh Electrostatic device for powder spraying with triboelectric powder charging
EP0592137A1 (en) * 1992-10-05 1994-04-13 Nordson Corporation Tribo-electric powder spray gun
US5487624A (en) * 1993-02-22 1996-01-30 I.T.M. Corporation Powder feeding apparatus, electrostatic powder coating apparatus and powder flow-rate measuring apparatus
EP0627265A1 (en) * 1993-06-02 1994-12-07 Matsuo Sangyo Co., Ltd. Frictional electrification gun
US5395046A (en) * 1993-10-25 1995-03-07 Nordson Corporation Hand-held spray gun with replaceable handle
WO1995024272A1 (en) * 1994-03-06 1995-09-14 Sealflock Aktiebolag Method and device for application of fibres on a surface
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
US5885351A (en) * 1997-02-18 1999-03-23 Pfs Thermoplastic Powder Coatings, Inc. Tribocharge applicator device
WO1999001227A1 (en) * 1997-07-04 1999-01-14 University Of Southampton Improved targeting of flying insects with insecticides and apparatus for charging liquids
US6032871A (en) * 1997-07-15 2000-03-07 Abb Research Ltd. Electrostatic coating process
WO1999061166A1 (en) * 1998-05-22 1999-12-02 Sarnoff Corporation Focused acoustic bead charger/dispenser for bead manipulating chucks

Also Published As

Publication number Publication date
DE60106617D1 (en) 2004-11-25
WO2002004127A2 (en) 2002-01-17
EP1303356A2 (en) 2003-04-23
CN1635932A (en) 2005-07-06
AU2001276859A1 (en) 2002-01-21
DE60106617T2 (en) 2005-12-01
JP2004502532A (en) 2004-01-29
KR20030022858A (en) 2003-03-17
CA2413267A1 (en) 2002-01-17
EP1303356B1 (en) 2004-10-20

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