EP0111116A3 - Process for introducing an ionisable gas into an arc torch plasma, and plasma torch for carrying out said process - Google Patents

Process for introducing an ionisable gas into an arc torch plasma, and plasma torch for carrying out said process Download PDF

Info

Publication number
EP0111116A3
EP0111116A3 EP83110451A EP83110451A EP0111116A3 EP 0111116 A3 EP0111116 A3 EP 0111116A3 EP 83110451 A EP83110451 A EP 83110451A EP 83110451 A EP83110451 A EP 83110451A EP 0111116 A3 EP0111116 A3 EP 0111116A3
Authority
EP
European Patent Office
Prior art keywords
plasma
torch
introducing
outlet opening
carrying
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
EP83110451A
Other languages
German (de)
Other versions
EP0111116A2 (en
EP0111116B1 (en
Inventor
Hans Josef Dr. Bebber
Heinrich-Otto Rossner
Gebhard Tomalla
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.)
Vodafone GmbH
Original Assignee
Fried Krupp 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 Fried Krupp AG filed Critical Fried Krupp AG
Priority to AT83110451T priority Critical patent/ATE46419T1/en
Publication of EP0111116A2 publication Critical patent/EP0111116A2/en
Publication of EP0111116A3 publication Critical patent/EP0111116A3/en
Application granted granted Critical
Publication of EP0111116B1 publication Critical patent/EP0111116B1/en
Expired 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
    • H05H1/3436—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
    • H05H1/3478—Geometrical details

Abstract

A plasma burner for introducing an ionizable gas stream into an electric arc comprises a nozzle having an outlet opening for discharging the gas stream. The outlet opening is defined by an outlet part of the nozzle; the outlet part has an inner nozzle face conically tapering, at an acute first cone angle, in a direction of the outlet opening. The plasma burner further has an electrode surrounded by the outlet part and having an outer electrode face conically tapering, at an acute second cone angle, in the direction of the outlet opening. The inner nozzle face and the outer electrode face together define a conical annular channel.
EP83110451A 1982-11-10 1983-10-20 Plasma torch having a conical electrode and a nozzle, the inner surface of which is at least in part conical Expired EP0111116B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83110451T ATE46419T1 (en) 1982-11-10 1983-10-20 PLASMA TORCH WITH A CONICAL ELECTRODE AND A NOZZLE WITH AT LEAST PARTIALLY CONICAL INNER JACKET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3241476 1982-11-10
DE19823241476 DE3241476A1 (en) 1982-11-10 1982-11-10 METHOD FOR INTRODUCING IONIZABLE GAS INTO A PLASMA OF AN ARC BURNER, AND PLASMA TORCHER FOR CARRYING OUT THE METHOD

Publications (3)

Publication Number Publication Date
EP0111116A2 EP0111116A2 (en) 1984-06-20
EP0111116A3 true EP0111116A3 (en) 1985-10-09
EP0111116B1 EP0111116B1 (en) 1989-09-13

Family

ID=6177711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110451A Expired EP0111116B1 (en) 1982-11-10 1983-10-20 Plasma torch having a conical electrode and a nozzle, the inner surface of which is at least in part conical

Country Status (7)

Country Link
US (1) US4594496A (en)
EP (1) EP0111116B1 (en)
JP (1) JPS5999700A (en)
AT (1) ATE46419T1 (en)
DE (1) DE3241476A1 (en)
FI (1) FI84548C (en)
ZA (1) ZA838333B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3435680A1 (en) * 1984-09-28 1986-04-03 Fried. Krupp Gmbh, 4300 Essen PLASMA TORCH
AT381826B (en) * 1984-10-11 1986-12-10 Voest Alpine Ag PLASMA TORCH
DE3642375A1 (en) * 1986-12-11 1988-06-23 Castolin Sa METHOD FOR APPLYING AN INTERNAL COATING INTO TUBES OD. DGL. CAVITY NARROW CROSS SECTION AND PLASMA SPLASH BURNER DAFUER
US4926632A (en) * 1988-02-01 1990-05-22 Olin Corporation Performance arcjet thruster
JPH0355792A (en) * 1989-07-25 1991-03-11 Ebara Infilco Co Ltd Plasma generator for fusion furnace
JP2681251B2 (en) * 1993-07-14 1997-11-26 動力炉・核燃料開発事業団 Restraint tip for plasma jet torch
DE4440323A1 (en) * 1994-11-11 1996-05-15 Sulzer Metco Ag Nozzle for a torch head of a plasma spraying unit
US6215089B1 (en) * 1998-06-02 2001-04-10 Inocon Technologie Gesellschaft M.B.H. Plasma welding torch
US6180911B1 (en) * 1999-06-02 2001-01-30 Retech Services, Inc. Material and geometry design to enhance the operation of a plasma arc
TW469757B (en) * 1999-12-13 2001-12-21 Nippon Steel Corp A transferred plasma heating anode
AT4599U1 (en) * 2000-06-21 2001-09-25 Inocon Technologie Gmbh PLASMA TORCH
DE10047696A1 (en) * 2000-09-25 2002-04-18 Dilthey Ulrich Plasma positive pole torch for high performance ranges
ITRM20010291A1 (en) * 2001-05-29 2002-11-29 Ct Sviluppo Materiali Spa PLASMA TORCH
US6963045B2 (en) 2003-11-14 2005-11-08 Tatras, Inc. Plasma arc cutting torch nozzle
US20060091117A1 (en) * 2004-11-04 2006-05-04 United Technologies Corporation Plasma spray apparatus
EP1689216A1 (en) * 2005-02-04 2006-08-09 Vlaamse Instelling Voor Technologisch Onderzoek (Vito) Atmospheric-pressure plasma jet
TWI352368B (en) * 2007-09-21 2011-11-11 Ind Tech Res Inst Plasma head and plasma-discharging device using th
US9144148B2 (en) 2013-07-25 2015-09-22 Hypertherm, Inc. Devices for gas cooling plasma arc torches and related systems and methods
CN105899297B (en) * 2013-12-19 2020-08-04 欧瑞康美科（美国）公司 Long life plasma nozzle with liner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027447A (en) * 1960-10-17 1962-03-27 Thermal Dynamics Corp Electric arc torch
FR1375669A (en) * 1962-01-25 1964-10-23 Plasmadyne Corp Methods and apparatus for welding and cutting
GB995152A (en) * 1962-05-01 1965-06-16 British Oxygen Co Ltd Improvements in electric arc cutting apparatus
US3214623A (en) * 1962-02-12 1965-10-26 Sheer Korman Associates Fluid transpiration plasma jet
US3790742A (en) * 1971-08-24 1974-02-05 Messer Griesheim Gmbh Nozzle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3147329A (en) * 1955-07-26 1964-09-01 Union Carbide Corp Method and apparatus for heating metal melting furnaces
DE1440628B2 (en) * 1955-07-26 1971-04-22 Union Carbide Corp , New York, N Y (V St A) ARC BURNER FOR AN ARC FURNACE
DE1302391B (en) * 1960-08-01 1971-05-13 Institut De Recherches De La Siderurgie Francai
US3644782A (en) * 1969-12-24 1972-02-22 Sheet Korman Associates Inc Method of energy transfer utilizing a fluid convection cathode plasma jet
JPS4834045A (en) * 1971-09-06 1973-05-15
JPS5145638B2 (en) * 1974-06-07 1976-12-04
HU172563B (en) * 1975-01-27 1978-09-28 Villamos Ipari Kutato Intezet Method and plasma generator for surface melting solid bulding units
JPS5546266A (en) * 1978-09-28 1980-03-31 Daido Steel Co Ltd Plasma torch
JPS564352A (en) * 1979-06-20 1981-01-17 Nippon Steel Corp Electromagnetic rabbling method in continuous casting
DD151249A1 (en) * 1979-12-18 1981-10-08 Armin Gruenler DUESE FOR A HIGH-POWER PLASMATRON

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027447A (en) * 1960-10-17 1962-03-27 Thermal Dynamics Corp Electric arc torch
FR1375669A (en) * 1962-01-25 1964-10-23 Plasmadyne Corp Methods and apparatus for welding and cutting
US3214623A (en) * 1962-02-12 1965-10-26 Sheer Korman Associates Fluid transpiration plasma jet
GB995152A (en) * 1962-05-01 1965-06-16 British Oxygen Co Ltd Improvements in electric arc cutting apparatus
US3790742A (en) * 1971-08-24 1974-02-05 Messer Griesheim Gmbh Nozzle

Also Published As

Publication number Publication date
DE3241476C2 (en) 1990-02-22
ZA838333B (en) 1984-07-25
EP0111116A2 (en) 1984-06-20
DE3241476A1 (en) 1984-05-10
FI834038A0 (en) 1983-11-03
US4594496A (en) 1986-06-10
FI84548B (en) 1991-08-30
FI84548C (en) 1991-12-10
JPS5999700A (en) 1984-06-08
EP0111116B1 (en) 1989-09-13
ATE46419T1 (en) 1989-09-15

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