EP1657322A3 - Plasma spray apparatus - Google Patents

Plasma spray apparatus Download PDF

Info

Publication number
EP1657322A3
EP1657322A3 EP05256848A EP05256848A EP1657322A3 EP 1657322 A3 EP1657322 A3 EP 1657322A3 EP 05256848 A EP05256848 A EP 05256848A EP 05256848 A EP05256848 A EP 05256848A EP 1657322 A3 EP1657322 A3 EP 1657322A3
Authority
EP
European Patent Office
Prior art keywords
plasma
gas
anode
arc
electric arc
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
EP05256848A
Other languages
German (de)
French (fr)
Other versions
EP1657322A2 (en
EP1657322B1 (en
Inventor
Donn Blankenship
Paul H. Zajchowski
Gary C. Shubert
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.)
Raytheon Technologies Corp
Original Assignee
United Technologies Corp
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
Priority claimed from US10/982,041 external-priority patent/US20060091117A1/en
Priority claimed from US11/190,136 external-priority patent/US20070023402A1/en
Priority claimed from US11/253,868 external-priority patent/US20070087129A1/en
Application filed by United Technologies Corp filed Critical United Technologies Corp
Publication of EP1657322A2 publication Critical patent/EP1657322A2/en
Publication of EP1657322A3 publication Critical patent/EP1657322A3/en
Application granted granted Critical
Publication of EP1657322B1 publication Critical patent/EP1657322B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying 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
    • B05B7/22—Spraying 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
    • B05B7/222—Spraying 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
    • B05B7/226—Spraying 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 being originally a particulate material

Abstract

A method and apparatus for plasma spray coating a portion of a workpiece (24), such as a gas turbine compressor blade, without masking any portions thereof. The apparatus includes a plasma apparatus with an anode (16), cathode (18), and an arc generator for generating an electric arc (20) between the anode (16) and cathode (18). An arc gas emitter injects inert gas through the electric arc (20). The electric arc (20) is operable for ionizing the gas to create a plasma gas stream (21). A powder injector nozzle extends through the anode (16) and injects powdered material (34) into the plasma stream (21) for transfer to the workpiece (24).
EP20050256848 2004-11-04 2005-11-04 Plasma spray apparatus Active EP1657322B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/982,041 US20060091117A1 (en) 2004-11-04 2004-11-04 Plasma spray apparatus
US11/190,136 US20070023402A1 (en) 2005-07-26 2005-07-26 Methods for repairing workpieces using microplasma spray coating
US11/253,868 US20070087129A1 (en) 2005-10-19 2005-10-19 Methods for repairing a workpiece

Publications (3)

Publication Number Publication Date
EP1657322A2 EP1657322A2 (en) 2006-05-17
EP1657322A3 true EP1657322A3 (en) 2008-02-27
EP1657322B1 EP1657322B1 (en) 2013-10-30

Family

ID=35708880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050256848 Active EP1657322B1 (en) 2004-11-04 2005-11-04 Plasma spray apparatus

Country Status (1)

Country Link
EP (1) EP1657322B1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199104A (en) * 1976-01-23 1980-04-22 Plasmainvent Ag Plasma spraying apparatus
JPS61210170A (en) * 1985-03-14 1986-09-18 Hitachi Zosen Corp Thermal spraying method of ceramic powder
EP0342388A2 (en) * 1988-05-13 1989-11-23 James A. Browning High-velocity controlled-temperature plasma spray method and apparatus
US5233153A (en) * 1992-01-10 1993-08-03 Edo Corporation Method of plasma spraying of polymer compositions onto a target surface
RU2039613C1 (en) * 1992-07-01 1995-07-20 Сибирская аэрокосмическая академия Plasmatron for depositing, mainly, refractory materials
US5770273A (en) * 1995-02-14 1998-06-23 General Electric Company Plasma coating process for improved bonding of coatings on substrates
WO2001088218A1 (en) * 2000-05-15 2001-11-22 Euromat Gesellschaft Für Werkstofftechnologie Und Transfer Mbh Method for applying precious metal layer and/or alloy and use thereof
US20030185965A1 (en) * 2002-03-27 2003-10-02 Applied Materials, Inc. Evaluation of chamber components having textured coatings
EP1652952A1 (en) * 2004-10-29 2006-05-03 United Technologies Corporation Methods for repairing workpieces using microplasma spray coating

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199104A (en) * 1976-01-23 1980-04-22 Plasmainvent Ag Plasma spraying apparatus
JPS61210170A (en) * 1985-03-14 1986-09-18 Hitachi Zosen Corp Thermal spraying method of ceramic powder
EP0342388A2 (en) * 1988-05-13 1989-11-23 James A. Browning High-velocity controlled-temperature plasma spray method and apparatus
US5233153A (en) * 1992-01-10 1993-08-03 Edo Corporation Method of plasma spraying of polymer compositions onto a target surface
RU2039613C1 (en) * 1992-07-01 1995-07-20 Сибирская аэрокосмическая академия Plasmatron for depositing, mainly, refractory materials
US5770273A (en) * 1995-02-14 1998-06-23 General Electric Company Plasma coating process for improved bonding of coatings on substrates
WO2001088218A1 (en) * 2000-05-15 2001-11-22 Euromat Gesellschaft Für Werkstofftechnologie Und Transfer Mbh Method for applying precious metal layer and/or alloy and use thereof
US20030185965A1 (en) * 2002-03-27 2003-10-02 Applied Materials, Inc. Evaluation of chamber components having textured coatings
EP1652952A1 (en) * 2004-10-29 2006-05-03 United Technologies Corporation Methods for repairing workpieces using microplasma spray coating

Also Published As

Publication number Publication date
EP1657322A2 (en) 2006-05-17
EP1657322B1 (en) 2013-10-30

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