Device with high frequency contactless type arc generating mecha

Details Device with high frequency contactless type arc generating mecha Device with high frequency contactless type arc generating mecha

1981-03-03

1983-11-29

Shaw, C. C.

Electric heating

Metal heating

By arc

B23K 906

Patent

active

044182651

ABSTRACT:
An electrical welding device which requires no high frequency insulation and an electrical discharge gap for maintaining the arc discharge is made large. A main power source supplies an arc discharge current through an electrical conductor to the welding electrode. A high frequency electric power source applies a high-frequency high voltage between the electrode and the material to be welded to generate a high frequency discharge for arc ignition in the electric discharge gap. A high frequency magnetic choke element, which is preferably a plurality of stacked annular ferrite discs, surrounds a predetermined part of the electrical conductor. A high-frequency bypass capacitor is utilized to ground the electrical conductor between the magnetic choke element and the main power source.

REFERENCES:
patent: 2594890 (1952-04-01), Ellwood
patent: 2764668 (1956-09-01), Dumoulin
patent: 2898516 (1959-08-01), Volff
patent: 3414656 (1968-12-01), Lunig
patent: 3444430 (1969-05-01), Needham
patent: 3614694 (1971-10-01), Koontz
patent: 3678341 (1972-07-01), Constable

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