2. AC arc furnace
2.1 Technology description
In the three-phase AC arc furnace, arcs develop between each of the three graphite electrodes and the metal. The metal melts as a result of direct attack by the arcs, which form pits in the solid metal charge. Once these pits have been formed, the arcs work on a liquid bath whose volume increases during the melting process.
The oven consists of the following components (figure 3 ):
the tank ;
the tilting cradle ;
the vault.
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AC arc furnace
Direct current arc furnace
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