Method and apparatus for electroslag welding

Details Method and apparatus for electroslag welding Method and apparatus for electroslag welding

1983-02-14

1985-03-19

Envall, Jr., Roy N.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

2191305, B23K 2500

Patent

active

045061300

ABSTRACT:
A method of pool-slag welding is carried out in the well-known manner and arrangement, however, with determined altering current intensity and/or voltage. A control unit is used which is suitable for the pulsewise altering of the values of current intensity and/or voltage which are necessary for welding. Altering current intensity is carried out advantageously by regulating the speed of feeding of the welding filler wire. The method and apparatus makes the production of intermittent welds possible, which are of better quality, greater toughness and better impact strength than the welds produced by known methods and apparatus.

REFERENCES:
patent: 3594538 (1971-07-01), Broodman
patent: 3975614 (1976-08-01), Toth et al.

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