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ATE56343T1 - PLASMA SPRAY TORCH. - Google Patents

PLASMA SPRAY TORCH.

Info

Publication number
ATE56343T1
ATE56343T1 AT87401339T AT87401339T ATE56343T1 AT E56343 T1 ATE56343 T1 AT E56343T1 AT 87401339 T AT87401339 T AT 87401339T AT 87401339 T AT87401339 T AT 87401339T AT E56343 T1 ATE56343 T1 AT E56343T1
Authority
AT
Austria
Prior art keywords
outlet orifice
anode
resurfacing
supply
cathode
Prior art date
Application number
AT87401339T
Other languages
German (de)
Inventor
Claude Mouchet
Original Assignee
Snmi Soc Nouv Metall Ind
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 Snmi Soc Nouv Metall Ind filed Critical Snmi Soc Nouv Metall Ind
Application granted granted Critical
Publication of ATE56343T1 publication Critical patent/ATE56343T1/en

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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3478—Geometrical details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder or liquid

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Geometry (AREA)
  • Plasma Technology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1. Plasma torch for resurfacing comprising, along a common axis (XX'), a central cathode (110) having a tapered end (110a) and an annular anode (112) surrounding the cathode and delimiting therewith an annular space (114) for the supply of plasma-producing gas, this space being extended beyond the tapered end of the cathode by an outlet orifice (115) formed in the anode, at least one passage (120) for the supply of resurfacing powder being formed in the anode and having, at the level of the said outlet orifice, an outlet end (120a) tilted towards the said axis, characterized in that the outlet orifice (115) has a rear part (115a) adjacent to the annular space (114) and a front part (115b) emerging outside and having a diameter greater than the diameter of the rear part, the tilted end (120a) of the passage for the supply of resurfacing powder emerging in the front part (115b) of the outlet orifice, channels (122), substantially parallel to the said axis (XX'), being formed in the anode (112), around the rear part (115a) of the outlet orifice, in order to place the front part (115b) of this orifice in communication with the said annular space (114).
AT87401339T 1986-06-17 1987-06-15 PLASMA SPRAY TORCH. ATE56343T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR868608736A FR2600229B1 (en) 1986-06-17 1986-06-17 PLASMA RECHARGING TORCH
EP87401339A EP0250308B1 (en) 1986-06-17 1987-06-15 Plasma torch for powder spraying

Publications (1)

Publication Number Publication Date
ATE56343T1 true ATE56343T1 (en) 1990-09-15

Family

ID=9336405

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87401339T ATE56343T1 (en) 1986-06-17 1987-06-15 PLASMA SPRAY TORCH.

Country Status (4)

Country Link
EP (1) EP0250308B1 (en)
AT (1) ATE56343T1 (en)
DE (1) DE3764725D1 (en)
FR (1) FR2600229B1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4866240A (en) * 1988-09-08 1989-09-12 Stoody Deloro Stellite, Inc. Nozzle for plasma torch and method for introducing powder into the plasma plume of a plasma torch
US4948485A (en) * 1988-11-23 1990-08-14 Plasmacarb Inc. Cascade arc plasma torch and a process for plasma polymerization
JPH03505104A (en) * 1989-03-31 1991-11-07 レニングラードスキイ　ポリテフニチェスキイ　インスティトゥト　イメニ　エム　イ　カリニナ Plasma treatment method and plasmatron
WO1991009702A1 (en) * 1989-12-26 1991-07-11 Leningradsky Politekhnichesky Institut Imeni M.I.Kalinina Plasmatron
GR1001021B (en) * 1991-07-17 1993-03-31 Le Politekhn I Im M L Kalinina Air plasma sprayer
GB2300649B (en) * 1995-02-23 1998-07-22 Quigley Associates Improvements in thermal spraying apparatus
US6379754B1 (en) 1997-07-28 2002-04-30 Volkswagen Ag Method for thermal coating of bearing layers
EP1003924B1 (en) * 1997-07-28 2003-10-01 Volkswagen Aktiengesellschaft Method for thermal coating, especially for plain bearings
DE29919142U1 (en) 1999-10-30 2001-03-08 Agrodyn Hochspannungstechnik GmbH, 33803 Steinhagen Plasma nozzle
SE525927C2 (en) * 2002-09-18 2005-05-31 Volvo Aero Corp Thermal sprayer used in aero space constructions, has frame element projecting in flame injection direction from end piece, and partly surrounding flame zone extending from end piece
US7557324B2 (en) 2002-09-18 2009-07-07 Volvo Aero Corporation Backstream-preventing thermal spraying device
JP2011177743A (en) * 2010-03-01 2011-09-15 Honda Motor Co Ltd Plasma welding torch and welding method using plasma welding torch
CN103492084B (en) * 2011-07-12 2016-05-25 伸和工业株式会社 Axial feed type plasma spray plating appts
EP3760013A1 (en) 2018-02-27 2021-01-06 Oerlikon Metco AG, Wohlen Plasma nozzle for a thermal spray gun and method of making and utilizing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148263A (en) * 1961-08-02 1964-09-08 Avco Corp Plasma-jet torch apparatus and method relating to increasing the life of the downstream electrode
US4127760A (en) * 1975-06-09 1978-11-28 Geotel, Inc. Electrical plasma jet torch and electrode therefor

Also Published As

Publication number Publication date
FR2600229A1 (en) 1987-12-18
DE3764725D1 (en) 1990-10-11
EP0250308B1 (en) 1990-09-05
FR2600229B1 (en) 1994-09-09
EP0250308A1 (en) 1987-12-23

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties