GB689921A - Improvements relating to arc welding - Google Patents

Improvements relating to arc welding

Info

Publication number
GB689921A
GB689921A GB28810/50A GB2881050A GB689921A GB 689921 A GB689921 A GB 689921A GB 28810/50 A GB28810/50 A GB 28810/50A GB 2881050 A GB2881050 A GB 2881050A GB 689921 A GB689921 A GB 689921A
Authority
GB
United Kingdom
Prior art keywords
core
electrode
arc
welding
thoria
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
GB28810/50A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB689921A publication Critical patent/GB689921A/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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/222—Non-consumable electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

689,921. Welding by fusion. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Nov. 24, 1950 [March 30, 1950], No. 28810/50. Class 83 (iv). [Also in Group XI] A non-consumable electrode for inert gas arcwelding has a core of thoria, zirconia or ceria associated with a metallic body (other than a refractory metal) of high heat conductivity and a melting-point lower than that of the core, e.g. copper, aluminium, steel, iron, brass or silver. The core is supported in a tube of the metal, the cross-sectional area of the core being about half that of the complete electrode. The electrode is used in automatic welding where the work and the welding torch are started moving relatively to one another as the high-frequency arc-starting spark is struck. The cathode spot and arc are immediately established on the core without wandering up the electrode. A stable cathode spot and arc may be started under opencircuit voltages of 21 volts D.C. in a shielding atmosphere of argon, or of 55 volts with helium. When welding thin metal stock and using a copper electrode with a core of thoria, a steady arc is established with 0.20 amp. D.C.
GB28810/50A 1950-03-30 1950-11-24 Improvements relating to arc welding Expired GB689921A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US689921XA 1950-03-30 1950-03-30

Publications (1)

Publication Number Publication Date
GB689921A true GB689921A (en) 1953-04-08

Family

ID=22086006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28810/50A Expired GB689921A (en) 1950-03-30 1950-11-24 Improvements relating to arc welding

Country Status (1)

Country Link
GB (1) GB689921A (en)

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