GB995152A - Improvements in electric arc cutting apparatus - Google Patents

Improvements in electric arc cutting apparatus

Info

Publication number
GB995152A
GB995152A GB16655/62A GB1665562A GB995152A GB 995152 A GB995152 A GB 995152A GB 16655/62 A GB16655/62 A GB 16655/62A GB 1665562 A GB1665562 A GB 1665562A GB 995152 A GB995152 A GB 995152A
Authority
GB
United Kingdom
Prior art keywords
arc
electrode
conduits
supplied
chamber
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
GB16655/62A
Inventor
John Anthony Lucey
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.)
BOC Group Ltd
Original Assignee
British Oxigen Ltd
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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB16655/62A priority Critical patent/GB995152A/en
Publication of GB995152A publication Critical patent/GB995152A/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
    • H05H1/3478—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
    • H05H1/40—Details, e.g. electrodes, nozzles using applied magnetic fields, e.g. for focusing or rotating the arc

Abstract

995,152. Cutting by fusion. BRITISH OXYGEN CO. Ltd. July 24, 1963 [May 1, 19621, No. 16655/62. Heading B3V. [Also in Division H5] An electric arc torch for cutting metal comprises insulating and metallic body portions 7, 10 of which the latter forms an arc chamber 4 and outlet nozzle 3, and the former encloses an assembly made up of a cylindrical copper member 6 fitting tightly around a gas supply pipe 13 and having a collar 8 which carries an electrode 5 and is surrounded by a ceramic insulator 9. Cutting gas is supplied through the pipe 13 and inert gas is supplied to the electrode bore 14 through conduits 18, 17, 15, and to the chamber 4 through conduits 19, the conduits 15, 19 being directed so that the inert gas forms a vortex flow stream and concentrates against the inner surface of the electrode 5 and the surfaces of the chamber 4 and the nozzle 3. Cooling water is supplied through channels 11, 20, and the pipe 13 may have an exit of Venturi form. A D.C. supply to a coil 21 causes the arc root to rotate around the tip of electrode 5, and the arc may be struck between this electrode and the workpiece 2, between members 5, 10, in which case the coil 21 may be omitted or not used, or between both of these pairs in which case appropriate resistors are inserted in the corresponding supply leads to produce the desired currents in the respective paths. Initiation and maintenance of the arc may be by means of a high frequency discharge and/or a pilot arc.
GB16655/62A 1962-05-01 1962-05-01 Improvements in electric arc cutting apparatus Expired GB995152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16655/62A GB995152A (en) 1962-05-01 1962-05-01 Improvements in electric arc cutting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16655/62A GB995152A (en) 1962-05-01 1962-05-01 Improvements in electric arc cutting apparatus

Publications (1)

Publication Number Publication Date
GB995152A true GB995152A (en) 1965-06-16

Family

ID=10081231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16655/62A Expired GB995152A (en) 1962-05-01 1962-05-01 Improvements in electric arc cutting apparatus

Country Status (1)

Country Link
GB (1) GB995152A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355262A (en) 1977-12-20 1982-10-19 Chan Anthony K F Electric arc apparatus
GB2118879A (en) * 1982-03-18 1983-11-09 Hee Chye Seat Electrode holder for welding or gouging
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
WO1993012634A1 (en) * 1991-12-12 1993-06-24 Kvaerner Engineering A.S A torch device for chemical processes
EP0773852A1 (en) * 1994-08-04 1997-05-21 Sulzer Metco AG High velocity, high pressure plasma gun

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355262A (en) 1977-12-20 1982-10-19 Chan Anthony K F Electric arc apparatus
GB2118879A (en) * 1982-03-18 1983-11-09 Hee Chye Seat Electrode holder for welding or gouging
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
EP0111116A3 (en) * 1982-11-10 1985-10-09 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Process for introducing an ionisable gas into an arc torch plasma, and plasma torch for carrying out said process
WO1993012634A1 (en) * 1991-12-12 1993-06-24 Kvaerner Engineering A.S A torch device for chemical processes
US5481080A (en) * 1991-12-12 1996-01-02 Kvaerner Engineering A.S. Plasma torch with a lead-in tube
EP0773852A1 (en) * 1994-08-04 1997-05-21 Sulzer Metco AG High velocity, high pressure plasma gun
EP0773852A4 (en) * 1994-08-04 1998-02-11 Sulzer Metco Ag High velocity, high pressure plasma gun

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