GB1376695A - Method of electrostatically applying a powder coating to an object - Google Patents

Method of electrostatically applying a powder coating to an object

Info

Publication number
GB1376695A
GB1376695A GB5890972A GB5890972A GB1376695A GB 1376695 A GB1376695 A GB 1376695A GB 5890972 A GB5890972 A GB 5890972A GB 5890972 A GB5890972 A GB 5890972A GB 1376695 A GB1376695 A GB 1376695A
Authority
GB
United Kingdom
Prior art keywords
mixture
powder
shroud
opening
pressurised
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.)
Expired
Application number
GB5890972A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1376695A publication Critical patent/GB1376695A/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
    • 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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/30—Arrangements for collecting, re-using or eliminating excess spraying material comprising enclosures close to, or in contact with, the object to be sprayed and surrounding or confining the discharged spray or jet but not the object to be sprayed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Abstract

1376695 Coating method FORD MOTOR CO Ltd 20 Dec 1972 [27 Dec 1971] 58909/72 Headings B2E and B2L A method for electrostatically applying a powder coating material to an object comprises (a) forming a pressurised mixture of gas and coating material, (b) applying an electrical potential difference between the object and an electrode, (c) guiding said pressurised mixture past the electrode to charge the particles, (d) expanding the pressurised mixture containing the charged particles, (e) confining the expanded mixture to a closed volume bounded in part by the object to be coated and drawing surplus expanded mixture from the closed volume bounded in part by the said object back towards a powder elector whereby a portion of the charged particles is electrostatically attracted to the object to form a coating thereon. In an apparatus described an electrostatic spray gun and a shroud assembly 14 are shown positioned adjacent an object 16 such as a sheet metal panel. The gun has a body portion 18 and a central bore 20. A powder inlet 22 is located at one end and a hose 24 connected to it. At the other end of the bore is an electrode 26 connected to a high voltage sprend 38. The terminal 48 of the source of electrical energy is connected to the object 16. The terminal 48 and the object may be electrically grounded. The spray gun has a nozzle portion 50 having an adjustment cone 52. The shroud assembly comprises an inner shroud 54 and an outer shroud 56 and a plurality of spaces therebetween to form a chamber 16. The inner shroud surrounds the nozzle and extends beyond it in the direction of the object as does the outer shroud. The inner shroud has an opening 62 and the outer shroud an opening 66. The opening 66 is closer to the object than the opening 62. The outer shroud 56 is provided with an exhaust port 68 communicating with the chamber 60 and a conduit 70 is attached to exhaust port 68 and is connected at 72 to a source of sub-atmospheric pressure and to a powder collector. A mixture of compressed or pressurised air or other gas enters the central bore 20 through holes 24 when activated by a trigger switch 74. The pressurised mixture is guided past electrode 26 and discharged into the interior of the inner shroud through the adjustable nozzle 50. The inner shroud becomes filled with an expanded cloud of air and powder mixture and a coating of charged powder is formed on the object 16 and used air and powder mixture flows out into the chamber 60 along a flow path located in the region between the periphery 62 of the inner shroud opening and the object 16. The method is used to coat vehicle bodies.
GB5890972A 1971-12-27 1972-12-20 Method of electrostatically applying a powder coating to an object Expired GB1376695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21229471A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
GB1376695A true GB1376695A (en) 1974-12-11

Family

ID=22790409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5890972A Expired GB1376695A (en) 1971-12-27 1972-12-20 Method of electrostatically applying a powder coating to an object

Country Status (4)

Country Link
JP (1) JPS4873438A (en)
CA (1) CA984688A (en)
DE (1) DE2263585A1 (en)
GB (1) GB1376695A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1666161A1 (en) * 2004-11-25 2006-06-07 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO System for absorb spray overflow
EP3254765A1 (en) * 2016-06-10 2017-12-13 Airbus Operations S.L. Auxiliary local fluid deposition element
EP2859960B1 (en) * 2013-10-09 2018-03-21 Airbus Group SAS Method for conditioning the surface of an object and assembly for implementing same
CN109174514A (en) * 2018-08-03 2019-01-11 徐州汉龙智能科技有限公司 A kind of intelligence spray-painting plant and method for paint spraying
CN115155896A (en) * 2022-08-15 2022-10-11 山东东宏管业股份有限公司 Fluidized cleaning-free floating powder recycling structure and spraying system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933745A1 (en) * 1989-10-10 1991-04-11 Hestermann Gerhard Electrostatic powder coating device - uses suction hood combined with spray head, removing excess powder for recycling
CN107930928B (en) * 2017-12-20 2020-01-31 安徽摩诃环保科技有限公司 High-pressure micro-mist dust suppression nozzle protection cover

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1666161A1 (en) * 2004-11-25 2006-06-07 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO System for absorb spray overflow
EP2859960B1 (en) * 2013-10-09 2018-03-21 Airbus Group SAS Method for conditioning the surface of an object and assembly for implementing same
EP3254765A1 (en) * 2016-06-10 2017-12-13 Airbus Operations S.L. Auxiliary local fluid deposition element
US10525496B2 (en) 2016-06-10 2020-01-07 Airbus Operations Sl Auxiliary local fluid deposition element
CN109174514A (en) * 2018-08-03 2019-01-11 徐州汉龙智能科技有限公司 A kind of intelligence spray-painting plant and method for paint spraying
CN115155896A (en) * 2022-08-15 2022-10-11 山东东宏管业股份有限公司 Fluidized cleaning-free floating powder recycling structure and spraying system

Also Published As

Publication number Publication date
JPS4873438A (en) 1973-10-03
DE2263585A1 (en) 1973-07-12
CA984688A (en) 1976-03-02

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee