Automatic arc-welding machine operating with rod electrodes and

Details Automatic arc-welding machine operating with rod electrodes and Automatic arc-welding machine operating with rod electrodes and

1989-08-18

1990-08-28

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21912401, 2191251, 2191372, B23K 912

Patent

active

049527738

ABSTRACT:
An automatic arc welding machine of the type which operates with rod electrodes. The electrodes (46), which are held in a welding head (28), are moved automatically with respect to the workpiece. The electrodes are moved longitudinally away from the workpiece in accordance with the arc voltage such that a certain arc length is sustained. After use they are automatically replaced with new electrodes. For this purpose there is provided an arc striking control by means of which the particular electrode (46) is placed on the workpiece with the current limited to a value below the selected welding current; the electrode is then raised from the workpiece by an amount corresponding to the predetermined arc length while the welding current is released, before the longitudinal movement of the electrode in accordance with the arc voltage begins. A precisely timed and accurately placed ignition is achieved in this manner, even if the location of the weld is covered with scale or slag.

REFERENCES:
patent: 2195962 (1940-04-01), Hansen et al.
patent: 4772776 (1988-09-01), Siina

Affiliated with

Also associated with

Rating

Automatic arc-welding machine operating with rod electrodes and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic arc-welding machine operating with rod electrodes and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic arc-welding machine operating with rod electrodes and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1591400