GB1346790A - Plasma jet generators - Google Patents

Plasma jet generators

Info

Publication number
GB1346790A
GB1346790A GB6054971A GB6054971A GB1346790A GB 1346790 A GB1346790 A GB 1346790A GB 6054971 A GB6054971 A GB 6054971A GB 6054971 A GB6054971 A GB 6054971A GB 1346790 A GB1346790 A GB 1346790A
Authority
GB
United Kingdom
Prior art keywords
torch
plasma
nozzle
arc
bushing
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.)
Expired
Application number
GB6054971A
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.)
RIKEN Institute of Physical and Chemical Research
Original Assignee
RIKEN Institute of Physical and Chemical Research
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
Priority claimed from JP45118284A external-priority patent/JPS4932691B1/ja
Priority claimed from JP46072338A external-priority patent/JPS5210809B2/ja
Application filed by RIKEN Institute of Physical and Chemical Research filed Critical RIKEN Institute of Physical and Chemical Research
Publication of GB1346790A publication Critical patent/GB1346790A/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
    • 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
    • H05H1/44—Plasma torches using an arc using more than one torch

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)
  • Arc Welding In General (AREA)

Abstract

1346790 Welding by fusion RIKAGAKU KENKYUSHO 29 Dec 1971 [25 Dec 1970 17 Sept 1971] 60549/71 Heading B3R [Also in Divisions H3-H5] A plasma generator comprises at least two plasma torches A, B secured to a common plasma nozzle C. The nozzle C has inlets 15, 16 for the plasma torches A, B and a common plasma outlet 17. At least one torch, e.g. torch A is connected to the nozzle C by an insulating spacer 18 so that a stream of gas 20 may be supplied to the annular space defined between the insulator 18, a bushing 3 and the nozzle C. 9 Torch A comprises a rod cathode 1 and at least two concentric bushings 2, 3 whilst torch B comprises a rod cathode 9 and a bushing 11 formed with an arc throttle orifice 10. The negative terminal of a high frequency auxiliary power supply 21 is connected via a switch 22 to the cathode 1 of torch A and the positive terminal is connected to the bushing 2 of the torch A. The negative terminal of the main high frequency power supply 23 is connected to cathode 9 of torch B and the positive terminal is connected to bushing 2 of torch A and to the bushing 11 of torch B via a switch 24. In operation gas streams 7 and 8 are supplied to torch A and auxiliary power supply 21 is connected to torch A by closing switch 22 to establish an auxiliary arc 25. Gas stream 13 is then supplied to torch B, switch 24 is closed to form an arc 26, and a plasma jet is formed which passes from arc throttle orifice 10 to the plasma nozzle C. The two plasma jets thus formed converge at intersection 11 whereupon switches 22, 24 are opened so that a "hairpin" shaped main arc is formed which extends from cathode 9 to bushing 2 and a plasma jet flame 28 is formed which extends from outlet 17 of the plasma nozzle C. A gas stream 20 is supplied to the annular space between torch A and nozzle C to prevent the hairpin arc from engaging the wall of inlet 15. In a modification, Fig. 2, not shown, torch B is altered in construction so that an active gas, e.g. air or oxygen may be used to form the plasma. Various modifications of the nozzle are disclosed. In Figs. 10 and 1 (not shown) three or four plasma torches supply a common nozzle provided with a single plasma outlet. The generator may work in the transferred arc made with the main arc extending between the work and one torch. Cutting, welding and coating are specified applications.
GB6054971A 1970-12-25 1971-12-29 Plasma jet generators Expired GB1346790A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP45118284A JPS4932691B1 (en) 1970-12-25 1970-12-25
JP46072338A JPS5210809B2 (en) 1971-09-17 1971-09-17

Publications (1)

Publication Number Publication Date
GB1346790A true GB1346790A (en) 1974-02-13

Family

ID=26413474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6054971A Expired GB1346790A (en) 1970-12-25 1971-12-29 Plasma jet generators

Country Status (5)

Country Link
US (1) US3770935A (en)
CH (1) CH543711A (en)
DE (2) DE2164270C3 (en)
FR (1) FR2119768A5 (en)
GB (1) GB1346790A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498409A1 (en) * 1981-01-05 1982-07-23 G Energet PLASMA GENERATOR
WO1992015184A1 (en) * 1991-02-20 1992-09-03 Zhan Kapashevich Kulzhanov Method of forming electric arc discharge in a plasma generator and plasma generator

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7307170A (en) * 1973-05-23 1974-11-26
JPS5116379B2 (en) * 1973-07-20 1976-05-24
US4009413A (en) * 1975-02-27 1977-02-22 Spectrametrics, Incorporated Plasma jet device and method of operating same
US4013867A (en) * 1975-08-11 1977-03-22 Westinghouse Electric Corporation Polyphase arc heater system
US4038512A (en) * 1975-08-11 1977-07-26 Westinghouse Electric Corporation Self-stabilizing arc heater
JPS5546266A (en) * 1978-09-28 1980-03-31 Daido Steel Co Ltd Plasma torch
US4341941A (en) * 1979-03-01 1982-07-27 Rikagaku Kenkyusho Method of operating a plasma generating apparatus
DE3303677C2 (en) * 1982-03-06 1985-01-17 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Plasma cannon
JPH0622719B2 (en) * 1985-05-13 1994-03-30 小野田セメント株式会社 Multi-torch type plasma spraying method and apparatus
US4626648A (en) * 1985-07-03 1986-12-02 Browning James A Hybrid non-transferred-arc plasma torch system and method of operating same
US5166494A (en) * 1990-04-24 1992-11-24 Hypertherm, Inc. Process and apparatus for reducing electrode wear in a plasma arc torch
US5070227A (en) * 1990-04-24 1991-12-03 Hypertherm, Inc. Proceses and apparatus for reducing electrode wear in a plasma arc torch
US5396043A (en) * 1988-06-07 1995-03-07 Hypertherm, Inc. Plasma arc cutting process and apparatus using an oxygen-rich gas shield
US4982067A (en) * 1988-11-04 1991-01-01 Marantz Daniel Richard Plasma generating apparatus and method
US5144110A (en) * 1988-11-04 1992-09-01 Marantz Daniel Richard Plasma spray gun and method of use
US4896017A (en) * 1988-11-07 1990-01-23 The Carborundum Company Anode for a plasma arc torch
KR920700833A (en) * 1989-05-05 1992-08-10 퉁스람 레츠베니타르싸그 Workpiece processing device using plasma beam
JPH03150341A (en) * 1989-11-07 1991-06-26 Onoda Cement Co Ltd Conjugate torch type plasma generator and plasma generating method using the same
US5017752A (en) * 1990-03-02 1991-05-21 Esab Welding Products, Inc. Plasma arc torch starting process having separated generated flows of non-oxidizing and oxidizing gas
US5008511C1 (en) * 1990-06-26 2001-03-20 Univ British Columbia Plasma torch with axial reactant feed
US5317126A (en) * 1992-01-14 1994-05-31 Hypertherm, Inc. Nozzle and method of operation for a plasma arc torch
US5514848A (en) * 1994-10-14 1996-05-07 The University Of British Columbia Plasma torch electrode structure
US5620617A (en) * 1995-10-30 1997-04-15 Hypertherm, Inc. Circuitry and method for maintaining a plasma arc during operation of a plasma arc torch system
US5798493A (en) * 1996-05-14 1998-08-25 Heller, Sr.; Walter R. Fixed welding apparatus and method
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
US6326583B1 (en) 2000-03-31 2001-12-04 Innerlogic, Inc. Gas control system for a plasma arc torch
US6114649A (en) * 1999-07-13 2000-09-05 Duran Technologies Inc. Anode electrode for plasmatron structure
DE102007010996A1 (en) * 2007-03-05 2008-09-11 Arcoron Gmbh plasma nozzle
US8338740B2 (en) * 2008-09-30 2012-12-25 Hypertherm, Inc. Nozzle with exposed vent passage
US9949356B2 (en) 2012-07-11 2018-04-17 Lincoln Global, Inc. Electrode for a plasma arc cutting torch
CN112240570B (en) * 2020-10-20 2021-12-03 西安航天动力研究所 Swirl torch igniter based on 3D printing forming
US20230012660A1 (en) * 2021-07-16 2023-01-19 Lincoln Global, Inc. Plasma cutting system with dual electrode plasma arc torch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373306A (en) * 1964-10-27 1968-03-12 Northern Natural Gas Co Method and apparatus for the control of ionization in a distributed electrical discharge
US3403211A (en) * 1965-03-31 1968-09-24 Centre Nat Rech Scient Methods and devices for heating substances
GB1160882A (en) * 1965-10-25 1969-08-06 Ass Elect Ind Improvements relating to Plasma Torches
FR1469629A (en) * 1966-01-07 1967-02-17 Centre Nat Rech Scient Improvements in means for producing a permanent plasma flow
US3588594A (en) * 1968-01-19 1971-06-28 Hitachi Ltd Device for bending a plasma flame
BE721912A (en) * 1968-10-07 1969-03-14
DE1933306B2 (en) * 1969-07-01 1972-02-10 Siemens AG, 1000 Berlin u 8000 München PROCEDURE FOR OPERATING A HIGH PRESSURE ARC FLASH TORCH AND ARRANGEMENT FOR CARRYING OUT THE PROCEDURE
US3644782A (en) * 1969-12-24 1972-02-22 Sheet Korman Associates Inc Method of energy transfer utilizing a fluid convection cathode plasma jet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498409A1 (en) * 1981-01-05 1982-07-23 G Energet PLASMA GENERATOR
WO1992015184A1 (en) * 1991-02-20 1992-09-03 Zhan Kapashevich Kulzhanov Method of forming electric arc discharge in a plasma generator and plasma generator

Also Published As

Publication number Publication date
US3770935A (en) 1973-11-06
FR2119768A5 (en) 1972-08-04
DE2164270A1 (en) 1972-07-13
DE2164270C3 (en) 1974-12-05
CH543711A (en) 1973-10-31
DE7148539U (en) 1972-04-27
DE2164270B2 (en) 1974-05-09

Similar Documents

Publication Publication Date Title
GB1346790A (en) Plasma jet generators
GB946262A (en) Improvements relating to the heat treatment of workpieces
GB2116408A (en) Method of operating a plasma jet generator
GB1160882A (en) Improvements relating to Plasma Torches
GB1456539A (en) Arc welding
US3246115A (en) Arc compounded combustion and flame arrangement
US4291217A (en) Process for underwater plasma cutting of workpieces
GB1139092A (en) Arc plasma torch
GB1108726A (en) Improvements in and relating to plasma arc burners
ATE46419T1 (en) PLASMA TORCH WITH A CONICAL ELECTRODE AND A NOZZLE WITH AT LEAST PARTIALLY CONICAL INNER JACKET.
GB1020894A (en) Improvements in and relating to apparatus for creating high temperature plasmas
GB1031033A (en) Improvements in or relating to plasma flame blowpipes
ES8704666A1 (en) Process and device for producing a plasma arc.
GB914088A (en) Arc torch
GB1070788A (en) Cutting torch nozzle
GB997541A (en) Electric arc torch
US3139509A (en) Electric arc torch
GB1145570A (en) Plasma jet torch
GB1350168A (en) Plasma spray gun
GB1132580A (en) Plasma torches
GB863190A (en) Heat-fusible material spray gun and method for coating a surface with a heat-fusiblematerial
GB1229873A (en)
GB1019848A (en) Improvements relating to plasma arc torch assemblies
GB1310827A (en) Plasma arc welding method and apparatus
GB1317050A (en) Electrical discharge system for use with oxidising gases

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years