CA2280019A1 - Improved plasma transferred wire arc thermal spray apparatus and method - Google Patents

Improved plasma transferred wire arc thermal spray apparatus and method Download PDF

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Publication number
CA2280019A1
CA2280019A1 CA002280019A CA2280019A CA2280019A1 CA 2280019 A1 CA2280019 A1 CA 2280019A1 CA 002280019 A CA002280019 A CA 002280019A CA 2280019 A CA2280019 A CA 2280019A CA 2280019 A1 CA2280019 A1 CA 2280019A1
Authority
CA
Canada
Prior art keywords
nozzle
cathode
free end
wire
feedstock
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
CA002280019A
Other languages
French (fr)
Other versions
CA2280019C (en
Inventor
James Baughman
David Cook
Keith Kowalsky
Daniel Marantz
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 Global Technologies LLC
Original Assignee
Ford Global Technologies, Inc.
James Baughman
David Cook
Keith Kowalsky
Daniel Marantz
Ford Motor Company
Ford Global Technologies, Llc
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 Global Technologies, Inc., James Baughman, David Cook, Keith Kowalsky, Daniel Marantz, Ford Motor Company, Ford Global Technologies, Llc filed Critical Ford Global Technologies, Inc.
Publication of CA2280019A1 publication Critical patent/CA2280019A1/en
Application granted granted Critical
Publication of CA2280019C publication Critical patent/CA2280019C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00Welding or cutting by means of a plasma
    • B23K10/02Plasma welding
    • B23K10/027Welding for purposes other than joining, e.g. build-up welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B05B13/0636Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
    • B05B7/224Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material having originally the shape of a wire, rod or the like

Abstract

A plasma transferred wire arc thermal spray apparatus is described for applying a coating to a surface. The apparatus comprises a cathode (51) having a first negative electrical potential, a nozzle (50) generally surrounding a free end of said cathode (51) in spaced relation having a restricted orifice (55) opposite said cathode free end, said nozzle (50) having a second positive electrical potential, a source of plasma gas directing plasma gas into said nozzle (50) surrounding said cathode (51) and exiting said restricted nozzle orifice (55), and a wire feed (58a, 58b) continuously directing a free end of wire feedstock (56) opposite said restricted nozzle orifice (55) and said wire feedstock (56) having the same second positive electrical potential as said nozzle (50), said apparatus thereby establishing a plasma transferred-arc between said wire feedstock free end and said cathode (51) melting said wire feedstock free end and said plasma gas exiting said restricted nozzle orifice (55) atomising melted feedstock and propelling atomised melted wire feedstock toward said surface, thereby coating said surface. A
method of coating a surface with a metallic coating is also disclosed.
CA002280019A 1997-02-14 1997-12-29 Improved plasma transferred wire arc thermal spray apparatus and method Expired - Lifetime CA2280019C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/799,242 US5808270A (en) 1997-02-14 1997-02-14 Plasma transferred wire arc thermal spray apparatus and method
US08/799,242 1997-02-14
PCT/IB1997/001604 WO1998035760A1 (en) 1997-02-14 1997-12-29 Improved plasma transferred wire arc thermal spray apparatus and method

Publications (2)

Publication Number Publication Date
CA2280019A1 true CA2280019A1 (en) 1998-08-20
CA2280019C CA2280019C (en) 2006-11-21

Family

ID=25175402

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002280019A Expired - Lifetime CA2280019C (en) 1997-02-14 1997-12-29 Improved plasma transferred wire arc thermal spray apparatus and method

Country Status (6)

Country Link
US (2) US5808270A (en)
EP (1) EP0958061B1 (en)
JP (1) JP4013997B2 (en)
CA (1) CA2280019C (en)
DE (1) DE69729805T2 (en)
WO (1) WO1998035760A1 (en)

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Also Published As

Publication number Publication date
JP4013997B2 (en) 2007-11-28
WO1998035760A1 (en) 1998-08-20
DE69729805T2 (en) 2004-11-25
CA2280019C (en) 2006-11-21
US5808270A (en) 1998-09-15
US5938944A (en) 1999-08-17
DE69729805D1 (en) 2004-08-12
JP2001512364A (en) 2001-08-21
EP0958061A1 (en) 1999-11-24
EP0958061B1 (en) 2004-07-07

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