GB1318147A - Electric arc welding - Google Patents

Electric arc welding

Info

Publication number
GB1318147A
GB1318147A GB1318147DA GB1318147A GB 1318147 A GB1318147 A GB 1318147A GB 1318147D A GB1318147D A GB 1318147DA GB 1318147 A GB1318147 A GB 1318147A
Authority
GB
United Kingdom
Prior art keywords
circuitry
wave
wave rectification
cycles
maintained
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
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.)
NII ZAVARYAVANE
Original Assignee
NII ZAVARYAVANE
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 NII ZAVARYAVANE filed Critical NII ZAVARYAVANE
Publication of GB1318147A publication Critical patent/GB1318147A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/10Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006Power supply
    • B23K9/1043Power supply characterised by the electric circuit
    • B23K9/1068Electric circuits for the supply of power to two or more arcs from a single source

Landscapes

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

Abstract

1318147 Welding by fusion NII PO ZAVARYAVANE 13 April 1971 9300/71 Heading B3R [Also in Division H2] In inert gas-shielded arc welding employing two independent arcs simultaneously, one of the arcs is maintained by an output derived by first half-wave rectification circuitry from the positive half-cycles of a three-phase A.C. supply and the other arc is maintained by an output derived by second half-wave rectification circuitry from the negative half-cycles of said supply. Secondary windings I-III of a threephase transformer are connected via first and second half-wave circuitry diodes 1, 1<SP>1</SP>, 3, 3<SP>1</SP>, 5, 51; 2, 2<SP>1</SP>, 4, 4<SP>1</SP>, 6, 6<SP>1</SP> to separate electrodes 15, 16, via coil 10, 11, and to a workpiece table 14. Respective electrode wires of different diameters may be used. Switch means may be provided to rapidly combine the first and second half-wave circuitry to provide full-wave rectification for single arc operation with only one electrode.
GB1318147D 1971-04-13 1971-04-13 Electric arc welding Expired GB1318147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB930071 1971-04-13

Publications (1)

Publication Number Publication Date
GB1318147A true GB1318147A (en) 1973-05-23

Family

ID=9869315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1318147D Expired GB1318147A (en) 1971-04-13 1971-04-13 Electric arc welding

Country Status (1)

Country Link
GB (1) GB1318147A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee