The article gives analysis of long-term and perspective tasks of automating EAF, particularly relevant to the conditions of domestic production. The results of studies on quality control of foaming slag in the super-power EAF-135 OJSC "Seversky Pipe Plant" are shown. We made the conclusions about the possibilities of using the electrical mode parameters for the operational control of the processes of smelting steel and ferroalloys.

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Laboratory researches of cooling rate influence on matrix structure, composition and quantity of nonmetallic inclusions in iron-aluminum alloys, containing 25-33%Al, are conducted. Thermodynamic modeling of composition and quantity of phases, which were formed in alloy system, containing Fe-Al-Si-C-O, for equilibrium conditions by means of the program complex ASTRA-4 (TERRA) is carried out. It is established, that irrespective of cooling rate the matrix has structure of intermetallic Fe-Al, and nonmetallic inclusions have platelet shape and composite of iron and aluminum oxy-carbides. It is confirmed, that ferroalloy with the optimal structure, necessary for receiving the high heat-resistance cast iron, should be cooled after smelting with the highest speed in these condition.

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