GB842397A - Arc cutting of metals - Google Patents

Arc cutting of metals

Info

Publication number
GB842397A
GB842397A GB9981/57A GB998157A GB842397A GB 842397 A GB842397 A GB 842397A GB 9981/57 A GB9981/57 A GB 9981/57A GB 998157 A GB998157 A GB 998157A GB 842397 A GB842397 A GB 842397A
Authority
GB
United Kingdom
Prior art keywords
electrode
arc
nozzle
gas
shielding gas
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
GB9981/57A
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.)
Marston Excelsior Ltd
Original Assignee
Marston Excelsior 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
Priority to BE566144D priority Critical patent/BE566144A/xx
Application filed by Marston Excelsior Ltd filed Critical Marston Excelsior Ltd
Priority to GB9981/57A priority patent/GB842397A/en
Priority to CH5764058A priority patent/CH365464A/en
Priority to DEM37156A priority patent/DE1100204B/en
Publication of GB842397A publication Critical patent/GB842397A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • 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
    • H05H1/3489—Means for contact starting

Landscapes

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

Abstract

842,397. Cutting by fusion. MARSTON EXCELSIOR Ltd., CLEWS, K. J., and ROBERTS, G. B. March 19, 1958 [March 27, 1957], No. 9981/57. Class 83 (4). [Also in Group XI] In the cutting of metals by a gas-shielded constricted arc, the electrode 7 is axially movable relatively to the nozzle 32 for establishing the arc with the workpiece without damaging the nozzle. A thoriated tungsten electrode which has a small diameter flat tip is guided in a bore 6 and connected to a piston 10 biased downwardly by a spring 11 whereby the electrode projects initially through the constricted orifice 33 of the nozzle. Argon shielding gas is supplied through pipe 25. The arc is established between the electrode and workpiece by high frequency current supplied from a spark oscillator 44, Fig. 3 (not shown), and thereafter gas, which may be the argon shielding gas, is admitted through pipe 20 to raise the piston and position the electrode in its correct arc-stabilized position within the nozzle. The argon shielding gas is then supplemented by hydrogen and the high-frequency supply is stopped. Alternatively the electrode may be biased forwardly by gas pressure and retracted by a spring. The arc may be established by a touch start or a surge injector.
GB9981/57A 1957-03-27 1957-03-27 Arc cutting of metals Expired GB842397A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE566144D BE566144A (en) 1957-03-27
GB9981/57A GB842397A (en) 1957-03-27 1957-03-27 Arc cutting of metals
CH5764058A CH365464A (en) 1957-03-27 1958-03-27 Electric power source arc cutter and method of operation
DEM37156A DE1100204B (en) 1957-03-27 1958-03-27 Inert gas arc torch for cutting and welding with non-consumable electrode and constricted arc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9981/57A GB842397A (en) 1957-03-27 1957-03-27 Arc cutting of metals

Publications (1)

Publication Number Publication Date
GB842397A true GB842397A (en) 1960-07-27

Family

ID=9882342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9981/57A Expired GB842397A (en) 1957-03-27 1957-03-27 Arc cutting of metals

Country Status (3)

Country Link
BE (1) BE566144A (en)
DE (1) DE1100204B (en)
GB (1) GB842397A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1322260A (en) * 1962-02-14 1963-03-29 Saint Gobain Plasma flame torch
JPS53119766A (en) * 1977-03-30 1978-10-19 Naoyoshi Hosoda Plasma melt cutting method
DE3930267C2 (en) * 1989-09-11 1998-12-24 Castolin Gmbh Shielding gas plasma torch
DE102007032496B3 (en) * 2007-07-12 2009-01-29 Maschinenfabrik Reinhausen Gmbh Apparatus for generating a plasma jet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702333A (en) * 1951-03-22 1955-02-15 Air Reduction Arc welding apparatus

Also Published As

Publication number Publication date
BE566144A (en)
DE1100204B (en) 1961-02-23

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