Electro-slag welding process for irregular sections

Details Electro-slag welding process for irregular sections Electro-slag welding process for irregular sections

1982-01-11

1983-11-01

Reynolds, B. A.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219 53, B23K 2500

Patent

active

044131690

ABSTRACT:
An electro-slag welding method and apparatus has been developed for butt-joint welding of steel rails or other metallic pieces having irregular cross section, in which the head and the web of the rail is surrounded with a conventional water cooled copper mold and the flange area is surrounded by a ceramic lined crucible. In addition to the conventional single central welding electrode, two or more electrodes are inserted through the lids of the ceramic crucible adjacent the outer ends of the rail flange so as to reduce the total welding current required to produce a complete flange weld and spread the welding energy, thereby reducing excess power and overheating at the central electrode, resulting in better metallurgical quality welds.

REFERENCES:
patent: 3192356 (1965-06-01), Shrubsall
patent: 3291955 (1966-12-01), Shrubsall et al.

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