GB744344A - Improvements in electric arc welding apparatus of the type using an alternating current arc - Google Patents

Improvements in electric arc welding apparatus of the type using an alternating current arc

Info

Publication number
GB744344A
GB744344A GB30485/53A GB3048553A GB744344A GB 744344 A GB744344 A GB 744344A GB 30485/53 A GB30485/53 A GB 30485/53A GB 3048553 A GB3048553 A GB 3048553A GB 744344 A GB744344 A GB 744344A
Authority
GB
United Kingdom
Prior art keywords
transformer
relay
motor
work
electrode
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
GB30485/53A
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.)
Fusarc Ltd
Original Assignee
Fusarc 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 Fusarc Ltd filed Critical Fusarc Ltd
Publication of GB744344A publication Critical patent/GB744344A/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
    • B23K9/00—Arc welding or cutting
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/073—Stabilising the arc
    • B23K9/0731—Stabilising of the arc tension

Landscapes

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

Abstract

744,344. Automatic control systems for electric arcs. FUSARC, Ltd. Nov. 4, 1953 [Nov. 4, 1952], No. 30485/53. Class 38 (4). Operation of a push button 12 energizes an A.C. motor field 5 and armature 6 from an A.C. source S through a transformer 7 and an autotransformer 11. The motor, operating through reduction gearing (not shown), slowly feeds a welding electrode 3 towards work 4. When contact occurs push button 12 is released and a switch 10 closed to energize a relay 9, contacts 8 of which close to supply welding current through a transformer 1 and a choke 2. Flow of welding current causes energization of a relay 22 through a rectifier 21 to open a contact 14 and close contacts 17, 20, 24. The alternating voltage between the electrode and the work is then applied in opposition to an alternating voltage obtained from S through a transformer 19 to motor armature 6 through a transformer 16. Thereafter the motor operates to maintain a predetermined arc voltage. Condenser 18 ensures optimum relative phasing of the motor armature and field supplies. Relay 22 may operate a further contact to initiate transverse movement of the electrode over the work. In a modification, relay 9 is dispensed with and welding current commences when the electrode makes contact with the work.
GB30485/53A 1952-11-04 1953-11-04 Improvements in electric arc welding apparatus of the type using an alternating current arc Expired GB744344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU744344X 1952-11-04

Publications (1)

Publication Number Publication Date
GB744344A true GB744344A (en) 1956-02-01

Family

ID=3756307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30485/53A Expired GB744344A (en) 1952-11-04 1953-11-04 Improvements in electric arc welding apparatus of the type using an alternating current arc

Country Status (1)

Country Link
GB (1) GB744344A (en)

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