Electric heating – Metal heating – By arc
Patent
1973-06-11
1976-03-16
Kozma, Thomas J.
Electric heating
Metal heating
By arc
219135, B23K 910
Patent
active
039447804
ABSTRACT:
A power supply source is provided for use in apparatus for the welding of workpieces. It contains several parallel - connected charge-discharge circuits connected to electrodes via a choke or resistor, each of these circuits consists of storage capacitors, elements for the switching-over of the capacitor discharge and isolating diodes with common-polarity electrodes of said diodes being interconnected and connected to the electric network via a thyristor. Such arrangement allows generating current pulses of a complex shape, including nearly rectangular shape, and provides for controlling welding thermal cycles over a wide range. The arrangement is also of a small size and weight.
REFERENCES:
patent: 3226578 (1965-12-01), Bengston
patent: 3644699 (1972-02-01), Mescheryak et al.
patent: 3718802 (1973-02-01), Manz
Asoyants Grigory Bagradovich
Dudko Daniil Andreevich
Gvozdetsky Vasily Stepanovich
Paton Boris Evgenievish
Shmakov Eduard Ivanovich
Kozma Thomas J.
Peterson G. R.
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