B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/33
B23K 9/09 (2006.01) B05B 7/22 (2006.01) B23K 9/10 (2006.01) B23K 9/12 (2006.01)
Patent
CA 1136226
ABSTRACT An apparatus for spray-arc welding includes a controllable current source, feed rollers for feeding a wire-like consumable electrode of additive material to the weld location; and a control unit for automatically adjusting the current source in dependence upon the weld sequence. The control unit includes a regulator for dividing the welding sequence in a controlled manner into intervals of high and low mean power, by intermittently increasing and decreasing the output of the welding current source in relation to the average output corres- ponding to the set rate of feed of said wire-like electrode and to the selected length of the arc; and a switching element for preventing the commencement of a high-power interval before the momentary output voltage has fallen to a given value.
346544
Ridout & Maybee Llp
Thermal Dynamics Corporation
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