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Article | REF: D5920 V1

Arc furnaces

Author: Maurice KRATZ

Publication date: February 10, 1999

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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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