EP0034278A3 - Method for the electrostatic coating of articles by means of a fluid - Google Patents

Method for the electrostatic coating of articles by means of a fluid Download PDF

Info

Publication number
EP0034278A3
EP0034278A3 EP81100609A EP81100609A EP0034278A3 EP 0034278 A3 EP0034278 A3 EP 0034278A3 EP 81100609 A EP81100609 A EP 81100609A EP 81100609 A EP81100609 A EP 81100609A EP 0034278 A3 EP0034278 A3 EP 0034278A3
Authority
EP
European Patent Office
Prior art keywords
fluid
bell
spray
articles
electrostatic coating
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
EP81100609A
Other languages
German (de)
Other versions
EP0034278B1 (en
EP0034278A2 (en
Inventor
Roland Andreas Dipl.-Ing. Meisner
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.)
BASF Farben und Fasern AG
Original Assignee
BASF Farben und Fasern AG
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 BASF Farben und Fasern AG filed Critical BASF Farben und Fasern AG
Priority to AT81100609T priority Critical patent/ATE9203T1/en
Publication of EP0034278A2 publication Critical patent/EP0034278A2/en
Publication of EP0034278A3 publication Critical patent/EP0034278A3/en
Application granted granted Critical
Publication of EP0034278B1 publication Critical patent/EP0034278B1/en
Expired legal-status Critical Current

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
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
    • 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
    • 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
    • B05B5/0415—Driving means; Parts thereof, e.g. turbine, shaft, bearings

Abstract

Process for electrostatically coating objects with a fluid, for instance liquid paint, by applying a high voltage to a spray bell and by feeding the fluid to a revolving, driven spray bell. The flow-rate of the fluid supplied to the center of the spray bell is decelerated nearly to zero when it enters the bell, then the rate of the fluid is increased by being accelerated by the bell to 15,000 to 60,000 rpm, and the fluid thereupon is centrifuged off the spray rim of the bell and is guided to the object to be coated.
EP81100609A 1980-02-15 1981-01-28 Method and apparatus for the electrostatic coating of articles by means of a fluid Expired EP0034278B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100609T ATE9203T1 (en) 1980-02-15 1981-01-28 METHOD AND DEVICE FOR ELECTROSTATIC COATING OF OBJECTS WITH A FLUID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3005677A DE3005677C2 (en) 1980-02-15 1980-02-15 Method and device for the electrostatic coating of objects with liquids
DE3005677 1980-02-15

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP83102488A Division EP0089043A3 (en) 1981-01-28 1981-01-28 Method and apparatus for coating objects electronically with fluids
EP83102488.0 Division-Into 1981-01-28

Publications (3)

Publication Number Publication Date
EP0034278A2 EP0034278A2 (en) 1981-08-26
EP0034278A3 true EP0034278A3 (en) 1981-12-16
EP0034278B1 EP0034278B1 (en) 1984-09-05

Family

ID=6094700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100609A Expired EP0034278B1 (en) 1980-02-15 1981-01-28 Method and apparatus for the electrostatic coating of articles by means of a fluid

Country Status (10)

Country Link
US (1) US4402991A (en)
EP (1) EP0034278B1 (en)
JP (1) JPS56141870A (en)
AT (1) ATE9203T1 (en)
BR (1) BR8100890A (en)
DE (2) DE3005677C2 (en)
DK (1) DK157903C (en)
ES (1) ES499449A0 (en)
MX (1) MX149160A (en)
ZA (1) ZA81929B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK151198B (en) * 1984-10-26 1987-11-09 Niro Atomizer As SPRAY WHEEL FOR USE IN A SPRAY WASHER
DE3668561D1 (en) * 1985-05-31 1990-03-08 Unimation Inc DISPERSING DEVICE WITH A ROTATING NOZZLE.
US4659018A (en) * 1985-05-31 1987-04-21 Westinghouse Electric Corp. Orbiting nozzle dispersion apparatus
DE3616684A1 (en) * 1986-05-16 1987-11-19 Behr Industrieanlagen SPRAYER FOR ELECTROSTATIC COATING OF OBJECTS
DE3634443A1 (en) * 1986-10-09 1988-04-21 Lactec Ges Fuer Moderne Lackte Apparatus for the electrostatic application of flowable media
US5086972A (en) * 1990-08-01 1992-02-11 Hughes Aircraft Company Enhanced electrostatic paint deposition method and apparatus
CA2128398C (en) * 1994-07-19 2007-02-06 John Sulzer Process and apparatus for casting metal strip and injector used therefor
US6409104B1 (en) 2000-04-19 2002-06-25 Ford Global Technologies, Inc. Silicon-doped amorphous carbon coating for paint bell atomizers
GR1003825B (en) * 2001-03-29 2002-02-26 The aerosol production method by means of centrifugal aerosol generator
US6889921B2 (en) * 2002-09-30 2005-05-10 Illinois Tool Works Inc. Bell cup skirt
US20050023385A1 (en) * 2003-07-29 2005-02-03 Kui-Chiu Kwok Powder robot gun
US7128277B2 (en) * 2003-07-29 2006-10-31 Illinois Tool Works Inc. Powder bell with secondary charging electrode
US20050056212A1 (en) * 2003-09-15 2005-03-17 Schaupp John F. Split shroud for coating dispensing equipment
US20050173556A1 (en) * 2004-02-09 2005-08-11 Kui-Chiu Kwok Coating dispensing nozzle
DE102006022057B3 (en) * 2006-05-11 2007-10-31 Dürr Systems GmbH Rotary atomizer`s application unit for use in varnishing machine, has surface layer, on which thin coating medium with specific film thickness is formed, where layer reduces boundary surface friction between medium and overflow surface
GB0625583D0 (en) * 2006-12-21 2007-01-31 Itw Ltd Paint spray apparatus
US8371517B2 (en) 2007-06-29 2013-02-12 Illinois Tool Works Inc. Powder gun deflector
US8602326B2 (en) * 2007-07-03 2013-12-10 David M. Seitz Spray device having a parabolic flow surface
US20090020626A1 (en) * 2007-07-16 2009-01-22 Illinois Tool Works Inc. Shaping air and bell cup combination
US8096264B2 (en) * 2007-11-30 2012-01-17 Illinois Tool Works Inc. Repulsion ring
US10155233B2 (en) * 2008-04-09 2018-12-18 Carlisle Fluid Technologies, Inc. Splash plate retention method and apparatus
US20090314855A1 (en) * 2008-06-18 2009-12-24 Illinois Tool Works Inc. Vector or swirl shaping air

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850322A (en) * 1956-05-31 1958-09-02 Rheem Mfg Co Centrifugal spray head
US2893894A (en) * 1958-11-03 1959-07-07 Ransburg Electro Coating Corp Method and apparatus for electrostatically coating
US2980338A (en) * 1954-03-04 1961-04-18 Fischer & Co H G Electrostatic paint spraying system
DE1148167B (en) * 1954-05-24 1963-05-02 Harper J Ransburg Co Rotary atomizer for the electrostatic application of paint or similar fluids
DE1933147A1 (en) * 1969-06-30 1971-01-21 Mueller Ernst Kg Paint spray gun for electrostatic paint spraying

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973478C (en) * 1952-04-01 1960-03-03 Metallgesellschaft Ag Device for the formation of finely distributed mist in the form of a cloud for deposition in an electrostatic field using an auxiliary gas flow
DE1240764B (en) * 1963-03-15 1967-05-18 Mueller Ernst Fa Process for the electrostatic coating of objects with paint and a device for carrying out the process
US4114564A (en) * 1963-06-13 1978-09-19 Ransburg Corporation Electrostatic coating apparatus
US3418971A (en) * 1964-11-13 1968-12-31 Gen Motors Corp Apparatus for electrostatic spray coating
US3442688A (en) * 1964-11-13 1969-05-06 Gen Motors Corp Electrostatic spray coating method and apparatus therefor
US3393662A (en) * 1964-12-30 1968-07-23 Ronald J. Blackwell Apparatus for electrostatic spray coating
GB1599303A (en) * 1977-09-20 1981-09-30 Nat Res Dev Electrostatic spraying
JPS5511064A (en) * 1978-07-12 1980-01-25 Toyota Motor Corp Rotary type electrostatic coater for conductive paint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980338A (en) * 1954-03-04 1961-04-18 Fischer & Co H G Electrostatic paint spraying system
DE1148167B (en) * 1954-05-24 1963-05-02 Harper J Ransburg Co Rotary atomizer for the electrostatic application of paint or similar fluids
US2850322A (en) * 1956-05-31 1958-09-02 Rheem Mfg Co Centrifugal spray head
US2893894A (en) * 1958-11-03 1959-07-07 Ransburg Electro Coating Corp Method and apparatus for electrostatically coating
DE1933147A1 (en) * 1969-06-30 1971-01-21 Mueller Ernst Kg Paint spray gun for electrostatic paint spraying

Also Published As

Publication number Publication date
DE3005677A1 (en) 1981-08-20
EP0034278B1 (en) 1984-09-05
DE3005677C2 (en) 1982-06-24
ES8206222A1 (en) 1982-08-16
DK157903B (en) 1990-03-05
DK157903C (en) 1990-08-27
US4402991A (en) 1983-09-06
DE3165801D1 (en) 1984-10-11
ES499449A0 (en) 1982-08-16
DK60381A (en) 1981-08-16
ZA81929B (en) 1982-03-31
EP0034278A2 (en) 1981-08-26
MX149160A (en) 1983-09-07
JPS56141870A (en) 1981-11-05
ATE9203T1 (en) 1984-09-15
BR8100890A (en) 1981-08-25

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