EP0176004A3 - Plasma torch - Google Patents

Plasma torch Download PDF

Info

Publication number
EP0176004A3
EP0176004A3 EP85111482A EP85111482A EP0176004A3 EP 0176004 A3 EP0176004 A3 EP 0176004A3 EP 85111482 A EP85111482 A EP 85111482A EP 85111482 A EP85111482 A EP 85111482A EP 0176004 A3 EP0176004 A3 EP 0176004A3
Authority
EP
European Patent Office
Prior art keywords
wall
electrode
nozzle body
generally cylindrical
torch
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
EP85111482A
Other languages
German (de)
Other versions
EP0176004A2 (en
EP0176004B1 (en
Inventor
Hans Josef Dr. Rer. Nat. Bebber
Heinrich-Otto Dipl.-Ing. Rossner
Gebhard Dipl.-Ing. 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 AT85111482T priority Critical patent/ATE69133T1/en
Publication of EP0176004A2 publication Critical patent/EP0176004A2/en
Publication of EP0176004A3 publication Critical patent/EP0176004A3/en
Application granted granted Critical
Publication of EP0176004B1 publication Critical patent/EP0176004B1/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
    • H05H1/3436—Hollow cathodes with internal coolant flow

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

In a plasma torch having an output end, the torch including an electrode having a longitudinal axis, and a generally cylindrical nozzle body surrounding, and positioned concentrically with, the electrode and the nozzle body, the nozzle body includes: a radially symmetrical, generally cylindrical inner wall spaced radially from the electrode; a radially symmetrical, generally cylindrical outer wall surrounding, and arranged concentrically with respect to, the inner wall; a front end wall located in the vicinity of the torch output end and joining together the inner and outer walls; and an electrical insulating component forming part of at least one of the inner and front end walls and extending entirely across its associated wall for electrically insulating the inner and outer walls from one another at at least one location in the vicinity of the front end wall.
EP85111482A 1984-09-28 1985-09-11 Plasma torch Expired - Lifetime EP0176004B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85111482T ATE69133T1 (en) 1984-09-28 1985-09-11 PLASMA BURNER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3435680 1984-09-28
DE19843435680 DE3435680A1 (en) 1984-09-28 1984-09-28 PLASMA TORCH

Publications (3)

Publication Number Publication Date
EP0176004A2 EP0176004A2 (en) 1986-04-02
EP0176004A3 true EP0176004A3 (en) 1988-05-25
EP0176004B1 EP0176004B1 (en) 1991-10-30

Family

ID=6246632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111482A Expired - Lifetime EP0176004B1 (en) 1984-09-28 1985-09-11 Plasma torch

Country Status (10)

Country Link
US (1) US4645899A (en)
EP (1) EP0176004B1 (en)
JP (1) JPH0695478B2 (en)
AT (1) ATE69133T1 (en)
CA (1) CA1241704A (en)
DD (1) DD238500A5 (en)
DE (1) DE3435680A1 (en)
ES (1) ES296059Y (en)
NO (1) NO167444C (en)
ZA (1) ZA857473B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3840485A1 (en) * 1988-12-01 1990-06-07 Mannesmann Ag LIQUID-COOLED PLASMA TORCH WITH TRANSFERED ARC
US4967055A (en) * 1989-03-31 1990-10-30 Tweco Products Plasma torch
US5164568A (en) * 1989-10-20 1992-11-17 Hypertherm, Inc. Nozzle for a plasma arc torch having an angled inner surface to facilitate and control arc ignition
DE4022112C2 (en) * 1990-07-11 1996-03-14 Mannesmann Ag Plasma torch for transmitted arc
DE4022111A1 (en) * 1990-07-11 1992-01-23 Krupp Gmbh PLASMA TORCH FOR TRANSFERED ARC
DE4034731A1 (en) * 1990-10-30 1992-05-07 Mannesmann Ag PLASMA BURNER FOR MELTING AND KEEPING WARM MATERIALS TO BE TREATED
GB9108891D0 (en) * 1991-04-25 1991-06-12 Tetronics Research & Dev Co Li Silica production
DE4440323A1 (en) * 1994-11-11 1996-05-15 Sulzer Metco Ag Nozzle for a torch head of a plasma spraying unit
US5771818A (en) * 1996-05-20 1998-06-30 Prometron Technics Co., Ltd. Cooling system for waste disposal device
DE19828633B4 (en) * 1998-06-26 2004-07-29 Wirth, Aloisia Arc welding or cutting torch and cooling system, plasma nozzles or TIG electrode collets, clamping system for plasma electrode needles and. cross-process design principle for this
US6326583B1 (en) 2000-03-31 2001-12-04 Innerlogic, Inc. Gas control system for a plasma arc torch
US6677551B2 (en) * 1998-10-23 2004-01-13 Innerlogic, Inc. Process for operating a plasma arc torch
US6498317B2 (en) 1998-10-23 2002-12-24 Innerlogic, Inc. Process for operating a plasma arc torch
US6163009A (en) * 1998-10-23 2000-12-19 Innerlogic, Inc. Process for operating a plasma arc torch
AU2003262415A1 (en) * 2002-04-19 2003-11-03 Thermal Dynamics Corporation Plasma arc torch consumables cartridge
US9285066B2 (en) * 2009-01-15 2016-03-15 Cheminee Securite International Ltee Positive pressure pipe coupling
DE102009061013B4 (en) * 2009-02-03 2011-07-21 Kjellberg Finsterwalde Plasma und Maschinen GmbH, 03238 Torch for tungsten inert gas welding
US9949356B2 (en) 2012-07-11 2018-04-17 Lincoln Global, Inc. Electrode for a plasma arc cutting torch
CN107454730B (en) * 2016-04-11 2020-03-03 海别得公司 Plasma arc cutting system including a swivel ring and related method of operation
US11007593B1 (en) 2017-06-27 2021-05-18 The United States Of America As Represented By The Secretary Of The Navy Vulcan fire torch
GB2568106B (en) * 2017-11-07 2022-09-21 Tetronics Tech Limited Plasma Torch Assembly
JP7489858B2 (en) * 2020-08-07 2024-05-24 日本真空光学株式会社 UV Transmitting Filter

Citations (5)

* 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
FR1549642A (en) * 1967-11-02 1968-12-13
US3471675A (en) * 1966-04-20 1969-10-07 Union Carbide Corp Arc torch
FR2385483A1 (en) * 1977-03-30 1978-10-27 Hosoda Naoyoshi PLASMA ARC WELDING AND CUTTING MACHINE
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 (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616017A (en) * 1949-09-07 1952-10-28 Air Reduction Electrode holder for use in inert gas-shielded arc welding
DE1440628B2 (en) * 1955-07-26 1971-04-22 Union Carbide Corp , New York, N Y (V St A) ARC BURNER FOR AN ARC FURNACE
US3204076A (en) * 1962-10-04 1965-08-31 Thermal Dynamics Corp Electric arc torch
US3515839A (en) * 1967-04-07 1970-06-02 Hitachi Ltd Plasma torch
DE2140241C3 (en) * 1971-08-26 1975-02-27 Ilja Samojlowitsch Schapiro Method for regulating the operating status of a system for plasma arc processing of workpieces and plasma arc processing system
BE795236A (en) * 1972-02-09 1973-05-29 Vysoka Skola Banska Ostrava PLASMA BURNER WITH AXIAL STABILIZING GAS SUPPLY
DD97364A1 (en) * 1972-06-13 1973-05-14
DD132706A3 (en) * 1974-10-08 1978-10-25 Jochen Boehme METHOD AND DEVICE FOR PROTECTING THE DUTIES OF WORK-PLASTERED PLASMA ROLLERS
JPS51105031U (en) * 1975-02-19 1976-08-23
JPS5250198U (en) * 1975-10-07 1977-04-09
JPS5524737A (en) * 1978-08-11 1980-02-22 Hitachi Seiko Ltd Plasma welding torch
DD151248A1 (en) * 1978-12-21 1981-10-08 Wenzel Bernd Dieter PROTECTION DEVICE FOR PLASMATRONES HIGH PERFORMANCE
JPS564351A (en) * 1979-06-25 1981-01-17 Sumitomo Electric Ind Ltd Tundish for continuous casting
US4311897A (en) * 1979-08-28 1982-01-19 Union Carbide Corporation Plasma arc torch and nozzle assembly
DE3307308A1 (en) * 1982-03-05 1983-09-15 Council for Mineral Technology, Randburg, Transvaal Electrode arrangement for plasma generation

Patent Citations (5)

* 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
US3471675A (en) * 1966-04-20 1969-10-07 Union Carbide Corp Arc torch
FR1549642A (en) * 1967-11-02 1968-12-13
FR2385483A1 (en) * 1977-03-30 1978-10-27 Hosoda Naoyoshi PLASMA ARC WELDING AND CUTTING MACHINE
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
DE3435680A1 (en) 1986-04-03
DE3435680C2 (en) 1990-02-01
CA1241704A (en) 1988-09-06
EP0176004A2 (en) 1986-04-02
ATE69133T1 (en) 1991-11-15
NO167444C (en) 1991-11-06
ES296059Y (en) 1988-01-16
JPS6188500A (en) 1986-05-06
JPH0695478B2 (en) 1994-11-24
US4645899A (en) 1987-02-24
NO167444B (en) 1991-07-29
NO853683L (en) 1986-04-01
DD238500A5 (en) 1986-08-20
ZA857473B (en) 1986-05-28
EP0176004B1 (en) 1991-10-30
ES296059U (en) 1987-07-16

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