Consumable-electrode melting

Consumable-electrode melting, 12 302 Consumable-electrode electric-arc melting technique, 25 522... 

Consumable-electrode melting, 23 254 Consumer applications, for polyamide plastics, 19 795... 

Fig. 3. Consumable-electrode melting in the vacuum-arc furnace (13). A, arc B, button E, electrode I, ingot L, lid M, water-cooled mold and P, pool of...

Arc melting also can be used to consoHdate bars of metal that are pressed from powder or sponge and used as consumable electrodes in a low voltage, high current arc. The bar is suspended vertically and the molten metal falls from the bottom of the bar onto a water-cooled copper cmcible, from which it is removed as an ingot. 

Consolidation. ConsoHdation by the consumable-electrode electric-arc melting technique is ideally suited for vanadium and is used extensively... 

REP, a rod of metal or alloy, referred to as a consumable electrode, is rotated at high speed about its longitudinal axis. Simultaneously, it is melted gradually at one of its ends by a heat source, such as an arc, a plasma, or an electron beam, etc. A thin film of the molten metal is detached from the rod end and ejected from the periphery of the rod by centrifugal force, forming spherical droplets. The atomization is conducted in an inert atmosphere, usually argon. Helium may be used to increase arc stability and convective cooling efficiency of droplets. 

In the consumable-electrode method, a uranium rod is arc-melted inside a deep cavity or hearth under a nitrogen pressure of 20 x 10 Pa. Th UN castings are heat-treated ( 1600°C for 8 h in vacuum) to eliminate high nitride (U2N3) accumulations. 

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