GB979353A - Improvements relating to electric arc equipment - Google Patents

Improvements relating to electric arc equipment

Info

Publication number
GB979353A
GB979353A GB510562A GB510562A GB979353A GB 979353 A GB979353 A GB 979353A GB 510562 A GB510562 A GB 510562A GB 510562 A GB510562 A GB 510562A GB 979353 A GB979353 A GB 979353A
Authority
GB
United Kingdom
Prior art keywords
electrode
auxiliary
arc
electrodes
main
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
GB510562A
Inventor
Kazimierz Goldman
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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB510562A priority Critical patent/GB979353A/en
Publication of GB979353A publication Critical patent/GB979353A/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
    • B23K9/067—Starting the arc
    • B23K9/0672—Starting the arc without direct contact between electrodes
    • B23K9/0678—Ionization of the arc gap by means of an auxiliary arc

Landscapes

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

Abstract

979,353. Welding by fusion. BRITISH OXYGEN CO. Ltd. Feb. 5, 1963 [Feb. 9, 1962], No. 5105/62. Heading B3R. [Also in Division H5] Gas-shielded electric arc equipment includes one or more unconsumable main electrodes 1 and an auxiliary electrode 5 mounted adjacent to and capable of moving into contact with main electrode 1 or one of the main electrodes to strike an auxiliary arc. As shown, electrode 5 is pivoted about a point 6. Electrode 1 is connected to one pole of a supply unit 2, the other pole being connected through control gear 4 to the workpiece 3 and through switch 8 and variable resistor 7 to electrode 5. Electrodes 1 and 5 are preferably made of the same material but may be different and if for example electrode 1 is of thoriated tungsten, electrode 5 may be of plain tungsten. Electrode 5 may be adjusted manually or automatically. After the auxiliary arc has struck, the shielding gas is ionized allowing the main arc to strike. Switch 8 may be opened or electrode 5 moved further from electrode 1 to intercept the auxiliary arc and cause the arc to transfer. According to the Provisional Specification there may be two or more auxiliary electrodes or the auxiliary electrode may take the form of a ring.
GB510562A 1962-02-09 1962-02-09 Improvements relating to electric arc equipment Expired GB979353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB510562A GB979353A (en) 1962-02-09 1962-02-09 Improvements relating to electric arc equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB510562A GB979353A (en) 1962-02-09 1962-02-09 Improvements relating to electric arc equipment

Publications (1)

Publication Number Publication Date
GB979353A true GB979353A (en) 1965-01-01

Family

ID=9789820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB510562A Expired GB979353A (en) 1962-02-09 1962-02-09 Improvements relating to electric arc equipment

Country Status (1)

Country Link
GB (1) GB979353A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896812A (en) * 1988-10-24 1990-01-30 Gasparas Kazlauskas Double downhill pipe welder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896812A (en) * 1988-10-24 1990-01-30 Gasparas Kazlauskas Double downhill pipe welder

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