Device for arc welding, in particular submerged-arc welding, wit

Details Device for arc welding, in particular submerged-arc welding, wit Device for arc welding, in particular submerged-arc welding, wit

1984-06-20

1986-04-22

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219 73, 219137PS, 21913771, B23K 910

Patent

active

045844577

ABSTRACT:
A device for arc welding having one or more fusible electrodes (15) which are in each case supplied from an alternating-current source (14) having a falling characteristic. The feed rate of the electrode (15) is regulated for constant arc length as a function of the arc voltage. Via a further regulator (37), the deposition efficiency is regulated by supplying the regulator (37) with the feed rate as actual value and changing the welding-current intensity as a function of this value. The change in welding-current intensity leads to an increase or decrease in arc length which, in turn, is compensated via the first regulator by changing the feed rate.

REFERENCES:
patent: 3851137 (1974-11-01), Verhagen et al.
patent: 3906184 (1975-09-01), Gibbs et al.
patent: 3978311 (1976-08-01), Toth

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