Method and device for electromagnetic removal of spatter on nozz

Details Method and device for electromagnetic removal of spatter on nozz Method and device for electromagnetic removal of spatter on nozz

1987-08-11

1989-06-13

Pal, Asok

Cleaning and liquid contact with solids

Processes

Including application of electrical radiant or wave energy...

134 2, 134 16, 15 94, B08B 700

Patent

active

048382876

ABSTRACT:
In this method for removing spatter deposits accumulated upon the inner surface of the end portion of a tubular arc welding torch nozzle, an end portion of a welding rod being fed for arc welding through an end portion of this nozzle with a space being left between this welding rod and the inner surface of the end portion of the nozzle, an electrical current is supplied through an electromagnetic coil positioned longitudinally proximate to the end portion of the nozzle. This electrical current typically generates an electromagnetic force upon the spatter deposits in the general direction parallel to the central axis of the nozzle, thus removing such spatter deposits from the inner surface of the end portion of the nozzle. The electrical current through the electromagnetic coil may further be provided from a condenser, in which case it will be quickly varying, and yet further the electromagnetic force may be advantageously concentrated by a sheath of ferromagnetic material fitted around the electromagnetic coil. A device is also disclosed for implementing this method.

REFERENCES:
patent: 3887457 (1975-06-01), Marston et al.
patent: 4490180 (1984-12-01), Prikhodko et al.
patent: 4590636 (1986-05-01), Wehrmann
patent: 4691724 (1987-09-01), Garcia et al.

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