F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
307/39
F27D 7/06 (2006.01) C22B 9/18 (2006.01) H05B 3/60 (2006.01)
Patent
CA 1051492
ABSTRACT OF THE DISCLOSURE In the electroslag remelting of steel using at least one self-consumming electrode with an alternating current in a liquid slag which is a conductor of electric current and a water cooled mould causing the resulting liquefied metal to solidify using the principle of a growing ingot, unwanted hydrogen and oxygen are removed by employing at least two non- melting auxiliary electrodes of different polarity connected to a source of direct current, and causing superimposed electric currents to flow between the auxiliary electrodes and the con- summable electrode, between the auxiliary electrodes and the ingot sump, and between the auxiliary electrodes themselves, the superimposed electric currents flowing in the slag in addition to the alternating current between the consummable electrode and ingot sump, whereby electrolysis occurs in the molten phase to cause the hydrogen and oxygen ions to migrate towards the auxiliary electrodes where they react with the air, slag and/or the material forming the auxiliary electrodes.
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