Method of electroslag surfacing of components having a cylindric

Details Method of electroslag surfacing of components having a cylindric Method of electroslag surfacing of components having a cylindric

1980-12-29

1983-02-08

Goldberg, Elliot A.

Electric heating

Metal heating

Nonatmospheric environment at hot spot

219 731, B23K 904, B23K 2500

Patent

active

043731287

ABSTRACT:
The invention relates to an electroslag surfacing of cylindrical components, such as a rolling-mill roll for iron production. The invention seeks to solve the problems of the electrodes for supplying a high current to the slag, and; how to prevent excess fusion-penetration of the base metal from occurring during the thick surfacing which results in an increase in heat input and a decrease in welding speed or the speed of rising the metal pool. In the present invention, a multi-phase alternating current is supplied to the slag via a plurality of consumable electrodes each in the form of a bar having a large cross section, and further the surfacing is conducted while rotating the workpiece and continuously adding molten metal to the surface of the slag bath. The invention can be mainly utilized for the production and repairing of cylindrical composite components.

REFERENCES:
patent: 4228336 (1980-10-01), Okuni
patent: 4303822 (1981-12-01), Hirsch

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