EP0178288A3 - Plasma burner - Google Patents

Plasma burner Download PDF

Info

Publication number
EP0178288A3
EP0178288A3 EP85890220A EP85890220A EP0178288A3 EP 0178288 A3 EP0178288 A3 EP 0178288A3 EP 85890220 A EP85890220 A EP 85890220A EP 85890220 A EP85890220 A EP 85890220A EP 0178288 A3 EP0178288 A3 EP 0178288A3
Authority
EP
European Patent Office
Prior art keywords
plasma burner
burner
plasma
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
EP85890220A
Other languages
German (de)
Other versions
EP0178288A2 (en
EP0178288B1 (en
Inventor
Wolfgang Dipl.-Ing. Eger
Gerhard Dipl.-Ing. Scheiblhofer
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voestalpine 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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0178288A2 publication Critical patent/EP0178288A2/en
Publication of EP0178288A3 publication Critical patent/EP0178288A3/en
Application granted granted Critical
Publication of EP0178288B1 publication Critical patent/EP0178288B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3436—Hollow cathodes with internal coolant flow
    • 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
    • H05H1/3484—Convergent-divergent nozzles
EP85890220A 1984-10-11 1985-09-12 Plasma burner Expired - Lifetime EP0178288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0323284A AT381826B (en) 1984-10-11 1984-10-11 PLASMA TORCH
AT3232/84 1984-10-11

Publications (3)

Publication Number Publication Date
EP0178288A2 EP0178288A2 (en) 1986-04-16
EP0178288A3 true EP0178288A3 (en) 1988-08-03
EP0178288B1 EP0178288B1 (en) 1990-10-24

Family

ID=3547431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85890220A Expired - Lifetime EP0178288B1 (en) 1984-10-11 1985-09-12 Plasma burner

Country Status (8)

Country Link
US (1) US4650953A (en)
EP (1) EP0178288B1 (en)
JP (1) JPS61179100A (en)
AT (1) AT381826B (en)
CA (1) CA1241999A (en)
DD (1) DD239707A5 (en)
DE (1) DE3580233D1 (en)
ZA (1) ZA857486B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3884653T2 (en) * 1987-04-03 1994-02-03 Fujitsu Ltd Method and device for the vapor deposition of diamond.
JPH0658840B2 (en) * 1988-04-26 1994-08-03 新日本製鐵株式会社 Transfer type plasma torch
US4954683A (en) * 1989-05-26 1990-09-04 Thermal Dynamics Corporation Plasma arc gouger
US4990739A (en) * 1989-07-07 1991-02-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Plasma gun with coaxial powder feed and adjustable cathode
IN180745B (en) * 1990-01-17 1998-03-14 Univ Sydney
US5079403A (en) * 1990-10-22 1992-01-07 W. A. Whitney Corp. Nozzle for plasma arc torch
GB9108891D0 (en) * 1991-04-25 1991-06-12 Tetronics Research & Dev Co Li Silica production
US5208448A (en) * 1992-04-03 1993-05-04 Esab Welding Products, Inc. Plasma torch nozzle with improved cooling gas flow
US5257500A (en) * 1992-07-27 1993-11-02 General Electric Company Aircraft engine ignition system
US5640841A (en) * 1995-05-08 1997-06-24 Crosby; Rulon Plasma torch ignition for low NOx combustion turbine combustor with monitoring means and plasma generation control means
US5771818A (en) * 1996-05-20 1998-06-30 Prometron Technics Co., Ltd. Cooling system for waste disposal device
DE19626941A1 (en) * 1996-07-04 1998-01-08 Castolin Sa Processes for coating or welding easily oxidizable materials and plasma torches therefor
US6207923B1 (en) 1998-11-05 2001-03-27 Hypertherm, Inc. Plasma arc torch tip providing a substantially columnar shield flow
US6362450B1 (en) 2001-01-30 2002-03-26 The Esab Group, Inc. Gas flow for plasma arc torch
WO2004070809A1 (en) * 2003-02-06 2004-08-19 Semiconductor Energy Laboratory Co., Ltd. Method for manufacturing display
US6969819B1 (en) * 2004-05-18 2005-11-29 The Esab Group, Inc. Plasma arc torch
US20070045241A1 (en) * 2005-08-29 2007-03-01 Schneider Joseph C Contact start plasma torch and method of operation
CN101998750B (en) * 2009-08-14 2012-09-26 中国科学院金属研究所 Plasma cathode and protecting method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130292A (en) * 1960-12-27 1964-04-21 Union Carbide Corp Arc torch apparatus for use in metal melting furnaces
US3304719A (en) * 1964-07-28 1967-02-21 Giannini Scient Corp Apparatus and method for heating and accelerating gas
US3692431A (en) * 1969-10-31 1972-09-19 Siemens Ag Apparatus for generating a gas jet
FR2414279A1 (en) * 1978-01-09 1979-08-03 Inst Elektroswarki Patona PLASMA PRODUCTION PROCESS IN AN ARC PLASMATRON AND DEVICE FOR IMPLEMENTING THE SAID PROCESS
EP0111116A2 (en) * 1982-11-10 1984-06-20 MANNESMANN Aktiengesellschaft Plasma torch having a conical electrode and a nozzle, the inner surface of which is at least in part conical

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967926A (en) * 1958-03-10 1961-01-10 Union Carbide Corp Testing process and apparatus
BE795891A (en) * 1972-02-23 1973-06-18 Electricity Council PLASMA TORCH IMPROVEMENTS
US4521666A (en) * 1982-12-23 1985-06-04 Union Carbide Corporation Plasma arc torch
US4558201A (en) * 1984-12-10 1985-12-10 Thermal Dynamics Corporation Plasma-arc torch with gas cooled blow-out electrode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130292A (en) * 1960-12-27 1964-04-21 Union Carbide Corp Arc torch apparatus for use in metal melting furnaces
US3304719A (en) * 1964-07-28 1967-02-21 Giannini Scient Corp Apparatus and method for heating and accelerating gas
US3692431A (en) * 1969-10-31 1972-09-19 Siemens Ag Apparatus for generating a gas jet
FR2414279A1 (en) * 1978-01-09 1979-08-03 Inst Elektroswarki Patona PLASMA PRODUCTION PROCESS IN AN ARC PLASMATRON AND DEVICE FOR IMPLEMENTING THE SAID PROCESS
EP0111116A2 (en) * 1982-11-10 1984-06-20 MANNESMANN Aktiengesellschaft Plasma torch having a conical electrode and a nozzle, the inner surface of which is at least in part conical

Also Published As

Publication number Publication date
AT381826B (en) 1986-12-10
ZA857486B (en) 1986-06-25
EP0178288A2 (en) 1986-04-16
DD239707A5 (en) 1986-10-01
JPS61179100A (en) 1986-08-11
DE3580233D1 (en) 1990-11-29
JPH0514399B2 (en) 1993-02-24
US4650953A (en) 1987-03-17
ATA323284A (en) 1986-04-15
CA1241999A (en) 1988-09-13
EP0178288B1 (en) 1990-10-24

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