Method for removing undesired elements, particularly H.sub.2 and

Details Method for removing undesired elements, particularly H.sub.2 and Method for removing undesired elements, particularly H.sub.2 and

1976-09-24

1977-12-06

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

13 9ES, 75 10R, C22B 400, H05B 718

Patent

active

040614930

ABSTRACT:
An electroslag remelting or refining method and arrangement for removing undesired elements, particularly H.sub.2 and O.sub.2, from metals. A water-cooled mold having a bottom plate is adapted to being raised in known manner. A growing metal ingot solidifying in the mold has a solidified portion and a liquid metal sump portion. A layer of molten slag covers the liquid metal sump. A self-consuming electrode extends into the slag. An a.c. source is connected between the electrode and bottom plate. Oppositely-poled auxiliary electrodes are included which are in electrical contact with the slag cover, the auxiliary electrodes being connected to opposite polarity terminals of a d.c. source.

REFERENCES:
patent: 3571475 (1971-03-01), Holzgruber
patent: 3744989 (1973-07-01), Doenecke
patent: 3767831 (1973-10-01), Plockinger

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