METHOD OF FERROTITANIUM INGOT OBTAINMENT BY ELECTRIC ARC FUSION OF RUTILE UNDER PROTECTIVE FLUX LAYER Russian patent published in 2010 - IPC C22B9/20 

FIELD: metallurgy.

SUBSTANCE: method involves consumable electrode manufacturing by shaping and compression of charge containing rutile, aluminium grit and fluidised glass as binding agent in a steel shell, and further feed of compressed consumable electrode by lifting device to fixation unit on horizontal bar of vertical stand of electric arc plant. Before feed to the said fixation unit, compressed consumable electrode is dried in drying chamber to dehydratise it. Before the end of consumable electrode drying, flux is loaded and melted into fluid state in crystallising tank by inconsumable graphite electrode mounted on additional horizontal bar of vertical stand. Further the inconsumable graphite electrode is retracted from the crystallising tank, and electric arc is excited between consumable electrode and lower eklectrode of crystallising tank under protective slag layer made of fluidised flux. Lime for melting in slag cover is fed to crystallising tank continuously.

EFFECT: improved quality of consumable electrode, obtainment of ferrotitanium ingot with improved titanium content, automated process of consumable electrode preparation and fusion.

13 cl, 1 ex