EP1075167A2 - Dispositif de pulvérisation par plasma - Google Patents

Dispositif de pulvérisation par plasma Download PDF

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Publication number
EP1075167A2
EP1075167A2 EP00810085A EP00810085A EP1075167A2 EP 1075167 A2 EP1075167 A2 EP 1075167A2 EP 00810085 A EP00810085 A EP 00810085A EP 00810085 A EP00810085 A EP 00810085A EP 1075167 A2 EP1075167 A2 EP 1075167A2
Authority
EP
European Patent Office
Prior art keywords
burner head
spraying device
plasma spraying
base body
anode
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.)
Withdrawn
Application number
EP00810085A
Other languages
German (de)
English (en)
Other versions
EP1075167A3 (fr
Inventor
Markus Müller
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.)
Oerlikon Metco AG
Original Assignee
Sulzer Metco AG
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 Sulzer Metco AG filed Critical Sulzer Metco AG
Publication of EP1075167A2 publication Critical patent/EP1075167A2/fr
Publication of EP1075167A3 publication Critical patent/EP1075167A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H05H1/3457—Nozzle protection devices
    • 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
    • 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

Definitions

  • the invention relates to a trained according to the preamble of claim 1 Plasma spraying device.
  • plasma spraying device is used here as in general Case to understand a coating device provided with a plasmatron, in which the coating material is supplied to the plasma jet in powder form. This coating material is melted in the plasma jet and as a homogeneous Layer applied to the substrate.
  • the coating powder is exposed to the plasma jet from the side, i.e. radially, fed.
  • the described problem can be remedied by the listed characteristics, by preventing it in particular in the area between the powder feed channel and the outlet nozzle comes to accumulate powder.
  • Preferred embodiments of the plasma spraying device are in the dependent ones Claims 2 to 9 circumscribed.
  • FIG. 1 shows a schematic side view of a conventional burner head 1. From this illustration are an anode base body 2, a cathode base body 4 and an interposed insulating body 3, which the anode base body 2 electrically isolated from the cathode base 4.
  • the anode base body 2 has an anode nozzle 6 and the cathode base body 4 provided with a cathode 7, both the anode nozzle 6 and the cathode 7 are inserted transversely to the longitudinal center axis L2 of the burner head 1, so that a generated plasma jet 10 radially emerges from the burner head 1.
  • Either the anode base body 2 and the cathode base body 4 are made of one electrical well conductive material such as brass.
  • the Anode nozzle 6 electrically with the anode base body 2 and the cathode 7 electrically connected to the cathode base body 4.
  • the supply of the coating powder takes place via a tube 9, which is arranged on the outside of the burner head 1 is.
  • this tube 9 runs transversely to the longitudinal center axis L1 of the outlet nozzle 6, the coating material to the indicated plasma jet 10 fed essentially radially.
  • the burner head 1 is very compact, whereby the plasma spraying device shown is particularly suitable for coating of bore and pipe walls. On the rest, for feeding the channels required for the operating and cooling media are not described in detail received.
  • FIG. 2 shows a schematic side view of the burner head according to the invention 1
  • Fig. 3 is a plan view of the burner head 1
  • Fig. 4 is a Front view of the burner head 1 shows.
  • the design is based on these three figures of the burner head 1 explained in more detail, the same parts with the same reference numerals are provided as in Fig. 1.
  • the burner head 1 shown in the Anode base body 2 has a gas supply channel 12 (FIG. 2) which is essentially in a conical recess 13 opens. That for the supply of the Pipe 9 provided for coating powder is fixed to a support element 14, which with a between the recess 13 and the powder feed pipe 9th extending cavity 15 is provided.
  • This cavity 15 can over the channel 12 are flooded with a gas, as is indicated in Fig. 2.
  • This gas 16 emerges from the cavity on the side facing the plasma jet 10 15 and thus prevents it from being in the aerodynamically critical area between the trailing edge of the anode nozzle 6 and the mouth of the powder feed tube 9 Powder buildup is coming.
  • FIG. 5 shows a top view of the anode base body
  • FIG. 6 shows a longitudinal section through the anode base body. From these two figures, in particular Design of the anode nozzle 6 and the shape of the recess 13.
  • both a reactive and an inert gas can also be supplied via the channel 12. Most of the time it is sufficient if about 10 to 20 liters of gas are added per minute.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Plasma Technology (AREA)
  • Nozzles (AREA)
EP00810085A 1999-07-28 2000-01-31 Dispositif de pulvérisation par plasma Withdrawn EP1075167A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19935468 1999-07-28
DE19935468A DE19935468A1 (de) 1999-07-28 1999-07-28 Plasmaspritzvorrichtung

Publications (2)

Publication Number Publication Date
EP1075167A2 true EP1075167A2 (fr) 2001-02-07
EP1075167A3 EP1075167A3 (fr) 2001-12-12

Family

ID=7916368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810085A Withdrawn EP1075167A3 (fr) 1999-07-28 2000-01-31 Dispositif de pulvérisation par plasma

Country Status (5)

Country Link
EP (1) EP1075167A3 (fr)
JP (1) JP2001052893A (fr)
KR (1) KR20010020643A (fr)
CA (1) CA2303981A1 (fr)
DE (1) DE19935468A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010020643A (ko) * 1999-07-28 2001-03-15 제라드 바르베자트; 발렌틴 폭트 플라즈마 분사 장치
WO2006080870A1 (fr) * 2005-01-26 2006-08-03 Volvo Aero Corp Procede et dispositif de pulverisation thermique
EP1837081A1 (fr) 2006-03-23 2007-09-26 United Technologies Corporation Port de décharge de poudre pour procédé de vaporisation thermique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3543149B2 (ja) 2001-09-03 2004-07-14 島津工業有限会社 プラズマ溶射用のトーチヘッド
RU2765851C1 (ru) * 2020-11-25 2022-02-03 федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) Устройство напыления металла для восстановления износа детали
DE102023200269A1 (de) 2023-01-13 2024-07-18 Volkswagen Aktiengesellschaft Düsenplatte für eine Plasmaspritzmaschine zum atmosphärischen Plasmaspritzen sowie Plasmaspritzmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430383A1 (de) * 1984-08-17 1986-02-27 Plasmainvent AG, Zug Plasmaspritzbrenner fuer innenbeschichtungen
JPH01218772A (ja) * 1988-02-27 1989-08-31 Nippon Steel Weld Prod & Eng Co Ltd プラズマ粉体肉盛トーチ
US5013883A (en) * 1990-05-18 1991-05-07 The Perkin-Elmer Corporation Plasma spray device with external powder feed
DE4022112C2 (de) * 1990-07-11 1996-03-14 Mannesmann Ag Plasmabrenner für übertragenen Lichtbogen
DE4030541C2 (de) * 1990-09-27 1997-10-02 Dilthey Ulrich Prof Dr Ing Brenner zur Beschichtung von Grundwerkstoffen mit pulverförmigen Zusatzwerkstoffen
US5208448A (en) * 1992-04-03 1993-05-04 Esab Welding Products, Inc. Plasma torch nozzle with improved cooling gas flow
DE4409002A1 (de) * 1994-03-16 1994-09-01 Arnim Wirth Verfahren zum Auftragen pulver- u. drahtförmiger Werkstoffe mit nicht auf das Werkstück übertragenem Plasmalichtbogen
JPH10152766A (ja) * 1996-11-26 1998-06-09 Mitsubishi Heavy Ind Ltd プラズマ溶射トーチ
DE19935468A1 (de) * 1999-07-28 2001-02-15 Sulzer Metco Ag Wohlen Plasmaspritzvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010020643A (ko) * 1999-07-28 2001-03-15 제라드 바르베자트; 발렌틴 폭트 플라즈마 분사 장치
WO2006080870A1 (fr) * 2005-01-26 2006-08-03 Volvo Aero Corp Procede et dispositif de pulverisation thermique
EP1837081A1 (fr) 2006-03-23 2007-09-26 United Technologies Corporation Port de décharge de poudre pour procédé de vaporisation thermique
US7644872B2 (en) 2006-03-23 2010-01-12 United Technologies Corporation Powder port blow-off for thermal spray processes

Also Published As

Publication number Publication date
DE19935468A1 (de) 2001-02-15
CA2303981A1 (fr) 2001-01-28
KR20010020643A (ko) 2001-03-15
EP1075167A3 (fr) 2001-12-12
JP2001052893A (ja) 2001-02-23

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