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Article | REF: M7700 V1

Electric steelworks

Authors: Patricia AYED, Claude OUVRADOU, Jacques ASTIER

Publication date: March 10, 2005

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2. Arc furnace principle

Note: Gas flow rates are expressed in cubic meters measured under normal temperature and pressure conditions (0 ˚C and 1.013 · 10 5 Pa).

2.1 AC-powered furnace

The Héroult-type electric melting furnace or free-arc furnace is three-phase. It consists essentially of a refractory-lined vessel, tilting for pouring and deslagging, designed to receive the metal charge, which is melted by means of three vertical graphite electrodes (see figure 17 mark A).

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Arc furnace principle
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