CA1268672C - Process and apparatus for applying chilled electrostatically charged particles to the surface of a large metal article - Google Patents

Process and apparatus for applying chilled electrostatically charged particles to the surface of a large metal article

Info

Publication number
CA1268672C
CA1268672C CA510001A CA510001A CA1268672C CA 1268672 C CA1268672 C CA 1268672C CA 510001 A CA510001 A CA 510001A CA 510001 A CA510001 A CA 510001A CA 1268672 C CA1268672 C CA 1268672C
Authority
CA
Canada
Prior art keywords
particles
chilled
pores
metal
application
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
CA510001A
Other languages
French (fr)
Other versions
CA1268672A (en
Inventor
Reinhold Hoffman
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 filed Critical
Priority to CA510001A priority Critical patent/CA1268672C/en
Application granted granted Critical
Publication of CA1268672A publication Critical patent/CA1268672A/en
Publication of CA1268672C publication Critical patent/CA1268672C/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
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
    • 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
    • B05B5/001—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means incorporating means for heating or cooling, e.g. the material to be sprayed
    • 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
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/082—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
    • B05D1/06—Applying particulate materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0218—Pretreatment, e.g. heating the substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
    • B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
    • B05D5/086—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers having an anchoring layer

Landscapes

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

Abstract

PROCESS AND APPARATUS FOR APPLYING CHILLED ELECTROSTATICALLY CHARGED PARTICLES TO THE SURFACE OF A LARGE METAL ARTICLE ABSTRACT OF THE DISCLOSURE The process described herein comprises the application of chilled particles such as polytetrafluoroethylene generally marketed under the trade mark "TEFLON", graphite, molybdenum sulfite, boron nitride, etc., to a metal surface having crevices or pores therein. With the metal heated to expand the crevices or pores and the particles chilled to contract them, the particles will be locked into the pores when both the metal and the particles come to equilibrium temperature with the particles thereby expanding and the pores contracting. The process described herein is directed to such an application of chilled particles to expanded pores in large metal objects such as for example, large rolls. The large object is rotated on it linear axis while maintained at the desired raised temperature and the particles are given an electrostatic charge and chilled prior to their application to the metal surface. Apparatus for effecting this application of electrostatically charged chilled particles is also described.
CA510001A 1986-01-23 1986-05-26 Process and apparatus for applying chilled electrostatically charged particles to the surface of a large metal article Expired CA1268672C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA510001A CA1268672C (en) 1986-01-23 1986-05-26 Process and apparatus for applying chilled electrostatically charged particles to the surface of a large metal article

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US82180286A 1986-01-23 1986-01-23
US821,802 1986-01-23
CA510001A CA1268672C (en) 1986-01-23 1986-05-26 Process and apparatus for applying chilled electrostatically charged particles to the surface of a large metal article

Publications (2)

Publication Number Publication Date
CA1268672A CA1268672A (en) 1990-05-08
CA1268672C true CA1268672C (en) 1990-05-08

Family

ID=25234348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA510001A Expired CA1268672C (en) 1986-01-23 1986-05-26 Process and apparatus for applying chilled electrostatically charged particles to the surface of a large metal article

Country Status (4)

Country Link
EP (1) EP0237668B1 (en)
JP (1) JPH0685896B2 (en)
CA (1) CA1268672C (en)
DE (1) DE3671847D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691865A (en) * 1986-01-23 1987-09-08 Interlock Corporation Device for chilling stream of gas-suspended particles
DE10101372A1 (en) 2001-01-13 2002-08-01 Itw Oberflaechentechnik Gmbh Spraying method and spraying device for coating liquid
DE10101369A1 (en) * 2001-01-13 2002-07-18 Itw Oberflaechentechnik Gmbh Spraying method and spraying device for coating liquid
JP2002235958A (en) * 2001-02-09 2002-08-23 Mitsubishi Heavy Ind Ltd Air conditioner and its control method
US8502157B2 (en) * 2011-09-09 2013-08-06 General Electric Company Boron containing coating for neutron detection
ITFI20120205A1 (en) * 2012-10-10 2014-04-11 Eurosider Sas Di Milli Ottavio & C METHOD AND APPARATUS FOR ELECTROSTATIC PAINTING
CN105188952A (en) * 2013-03-11 2015-12-23 卡莱流体技术有限公司 System and method of producing a coating with an electrostatic spray

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279936A (en) * 1964-11-27 1966-10-18 Forestek Plating & Mfg Co Treating surfaces with perfluorocarbon polymers
US4051275A (en) * 1974-06-21 1977-09-27 Forestek Clarence W Embedding and compacting particles in porous surfaces

Also Published As

Publication number Publication date
JPH0685896B2 (en) 1994-11-02
CA1268672A (en) 1990-05-08
DE3671847D1 (en) 1990-07-19
EP0237668A1 (en) 1987-09-23
EP0237668B1 (en) 1990-06-13
JPS62171762A (en) 1987-07-28

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Legal Events

Date Code Title Description
MKLA Lapsed
MKLA Lapsed

Effective date: 20050509

MKLA Lapsed

Effective date: 20050509