GB966103A - Improvements in or relating to arc torches - Google Patents

Improvements in or relating to arc torches

Info

Publication number
GB966103A
GB966103A GB204/60A GB20460A GB966103A GB 966103 A GB966103 A GB 966103A GB 204/60 A GB204/60 A GB 204/60A GB 20460 A GB20460 A GB 20460A GB 966103 A GB966103 A GB 966103A
Authority
GB
United Kingdom
Prior art keywords
arc
electrode
electrodes
torch
over
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
GB204/60A
Inventor
Ashley Robert Moss
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.)
HER MAJESTY S PRINCIPAL SEC DE
Original Assignee
HER MAJESTY S PRINCIPAL SEC DE
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 HER MAJESTY S PRINCIPAL SEC DE filed Critical HER MAJESTY S PRINCIPAL SEC DE
Priority to GB204/60A priority Critical patent/GB966103A/en
Publication of GB966103A publication Critical patent/GB966103A/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
    • H05H1/40—Details, e.g. electrodes, nozzles using applied magnetic fields, e.g. for focusing or rotating the arc
    • 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
    • H05H1/3431—Coaxial cylindrical electrodes
    • 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

Abstract

966,103. Arc blow torches. SECRETARY OF STATE, WAR DEPARTMENT. Dec. 30, 1960 [Jan. 4, 1960], No. 204/60. Heading H5H. A constricted arc or plasma jet torch is provided with a plurality of successively energizable solenoids 28 for producing a magnetic field in the arc gap, whereby the are may be constrained simultaneously to spin about the axis of, and to move longitudinally over the surface of, at least one electrode. As shown, an arc is struck between an inner electrode 26, Fig. 1, surrounded by a gas inlet 27, and an elongated nozzle 5a over which the arc is moved circumferentially and longitudinally. Alternatively, an arc may be struck between a workpiece and an internal electrode, over which it is moved longitudinally and circumferentially. Electrode 26 may be replaced by a hollow, cooled, tube formed with a concave end, the are being caused to spin around the rim thereof. In the high-powered torch shown in Fig. 3, the arc is caused to spin around cooled, annular electrodes 46, 47 by solenoids 64, 65, successive energization of which causes additional longitudinal and radial movement of the ends of the arc over the surfaces of the electrodes. The solenoids may be arranged within the electrodes if these are large enough. Gas is fed radially from inlets 62 through the arc, to form a stream of plasma which emerges through Venturi-shaped orifice 39. According to the Provisional Specification, relative movement can be produced between the are and at least one of the electrodes of an arc torch by movement of the electrode. For example, the torch may comprise a rotatable inner electrode, or a nozzle built up of a set of rotatable parts, the axes of rotation being parallel, perpendicular or inclined to the arc path.
GB204/60A 1960-01-04 1960-01-04 Improvements in or relating to arc torches Expired GB966103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB204/60A GB966103A (en) 1960-01-04 1960-01-04 Improvements in or relating to arc torches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB204/60A GB966103A (en) 1960-01-04 1960-01-04 Improvements in or relating to arc torches

Publications (1)

Publication Number Publication Date
GB966103A true GB966103A (en) 1964-08-06

Family

ID=9700248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB204/60A Expired GB966103A (en) 1960-01-04 1960-01-04 Improvements in or relating to arc torches

Country Status (1)

Country Link
GB (1) GB966103A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248184B (en) * 1965-04-17 1967-08-24 Siemens Ag Plasma torch
DE2834732A1 (en) 1977-10-18 1979-04-19 Viktor Nikolaevitsch Karinskij PLASMA JET BURNER HEAD
EP0204052A2 (en) * 1985-06-07 1986-12-10 Hydro-Quebec Method and system for controlling the electrode erosion of a plasma torch
FR2609358A1 (en) * 1987-01-07 1988-07-08 Electricite De France A LONGITUDINALLY MOBILE FORWARD-LOOKING ARC FOAM TORCH AND METHOD FOR CONTROLLING ITS MOVEMENT
FR2685850A1 (en) * 1991-12-31 1993-07-02 Electricite De France METHOD AND ELECTRICAL POWER SUPPLY FOR PLASMA TORCH.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248184B (en) * 1965-04-17 1967-08-24 Siemens Ag Plasma torch
DE2834732A1 (en) 1977-10-18 1979-04-19 Viktor Nikolaevitsch Karinskij PLASMA JET BURNER HEAD
DE2857787C2 (en) * 1977-10-18 1983-06-23 Viktor Nikolaevič Odincovo Moskovskaja oblast' Karinskij Plasma jet torch head
EP0204052A2 (en) * 1985-06-07 1986-12-10 Hydro-Quebec Method and system for controlling the electrode erosion of a plasma torch
EP0204052A3 (en) * 1985-06-07 1987-11-04 Hydro-Quebec Method and system for controlling the electrode erosion of a plasma torch
FR2609358A1 (en) * 1987-01-07 1988-07-08 Electricite De France A LONGITUDINALLY MOBILE FORWARD-LOOKING ARC FOAM TORCH AND METHOD FOR CONTROLLING ITS MOVEMENT
EP0277845A1 (en) * 1987-01-07 1988-08-10 Electricite De France Plasma torch with a longitudinally moving up-stream arc root,and method for controlling its displacement
AU610109B2 (en) * 1987-01-07 1991-05-16 Aerospatiale Societe Nationale Industrielle Plasma torch having a longitudinal mobile arc root, and process for controlling the displacement thereof
FR2685850A1 (en) * 1991-12-31 1993-07-02 Electricite De France METHOD AND ELECTRICAL POWER SUPPLY FOR PLASMA TORCH.
EP0550336A1 (en) * 1991-12-31 1993-07-07 Electricite De France Method and electric supply for a plasma torch
US5376768A (en) * 1991-12-31 1994-12-27 Electricite De France - Service National Method for equalizing wear to prolong the lifespan of a plasma torch electrode
US5393954A (en) * 1991-12-31 1995-02-28 Service National Ealectricite De France Plasma torch with power supply for equalizing wear to prolong the lifespan of an electrode of the torch

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