METHOD OF OBTAINING SOLIOL INGOTS-ELECTRODES Russian patent published in 2010 - IPC C22B9/20 C22B34/00 

FIELD: metallurgy.

SUBSTANCE: invention refers to electrometallurgy and can be used at vacuum arc remelting of ingots of high-melting and high reactivity metals and molten metals. Method of obtaining solid ingots-electrodes from high-melting and high-reactivity metals and molten metals involves the first remelting of extruded consumable electrode with formation of ingot-electrode consisting of cylindrical part and shank, intermediate remeltings of cast electrodes with further mechanical treatment of their shanks and the second remelting in vacuum arc furnace. At that, the first remelting of extruded electrode and formation of an ingot consisting of cylindrical part and conical shank at the bottom is performed in vacuum arc furnace with water-cooled crystalliser tank with a tray having a central conical cavity Initial melting stage is performed above the crystalliser tank tray by arcing in circular sector around central cavity in two steps. The first step is performed at 4÷10 kA during 15÷40 minutes, and the second step - at 10÷25 kA during 2÷10 minutes.

EFFECT: possible use of vacuum arc furnaces during production process of solid ingots-electrodes, increasing efficiency of vacuum arc furnaces owing to eliminating welding operations of electrode to stub end, as well as reducing labour input of mechanical treatment of reverse stub end.

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