GB833996A - Improvements in or relating to electrostatic spray coating - Google Patents

Improvements in or relating to electrostatic spray coating

Info

Publication number
GB833996A
GB833996A GB3245/56A GB324556A GB833996A GB 833996 A GB833996 A GB 833996A GB 3245/56 A GB3245/56 A GB 3245/56A GB 324556 A GB324556 A GB 324556A GB 833996 A GB833996 A GB 833996A
Authority
GB
United Kingdom
Prior art keywords
disc
articles
per minute
coating
liquid containing
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
GB3245/56A
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.)
Harper J Ransburg Co Inc
Original Assignee
Harper J Ransburg Co Inc
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 Harper J Ransburg Co Inc filed Critical Harper J Ransburg Co Inc
Publication of GB833996A publication Critical patent/GB833996A/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
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/087—Arrangements of electrodes, e.g. of charging, shielding, collecting electrodes
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D5/00—Coating with enamels or vitreous layers
    • C23D5/02—Coating with enamels or vitreous layers by wet methods

Abstract

<PICT:0833996/III/1> A method of applying a coating to an article comprises atomizing liquid containing glass frit, ceramic or like fusible coating material particles whose fineness of grind is represented by 1/2 or more P.C. units on a Fineness of Grind Gauge (see Group XIX), and electrostatically depositing atomized liquid containing the fusible particles on the article. Porcelain enamel slip is fed at a controlled rate, e.g. at 250 c.c. per minute, through a pipe 28 to a disc 21 which is connected to a high voltage source. e.g. 100,000 volts, the articles being earthed. Tubular electrodes 29, 30 are supported at 31, 32 from the ceiling and encircle the path of the articles, which surrounds the disc 21, to prevent overspray. Insulating discs 26, 27 of a diameter slightly less than that of the disc 21 are spaced, e.g. by 1/8 to 1/4 inch, from the disc 21 to assist in the formation of a quiescent atmosphere, e.g. one having air velocities not exceeding 100 feet per minute, in the vicinity of the articles, which pass within 2 feet of the disc 21, which may have a lineal edge velocity exceeding 10,000 feet per minute. The disc may be tilted or the articles may describe a helical path thereabout to obtain complete coating.
GB3245/56A 1955-02-07 1956-02-01 Improvements in or relating to electrostatic spray coating Expired GB833996A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US833996XA 1955-02-07 1955-02-07

Publications (1)

Publication Number Publication Date
GB833996A true GB833996A (en) 1960-05-04

Family

ID=22178039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3245/56A Expired GB833996A (en) 1955-02-07 1956-02-01 Improvements in or relating to electrostatic spray coating

Country Status (1)

Country Link
GB (1) GB833996A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857007A1 (en) * 2003-07-04 2005-01-07 L Et L Applying an enamel coating containing no heavy metals to the surface of glass objects, to provide a satin or tarnished finish for decorative purposes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2857007A1 (en) * 2003-07-04 2005-01-07 L Et L Applying an enamel coating containing no heavy metals to the surface of glass objects, to provide a satin or tarnished finish for decorative purposes

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