General arrangement of coreless induction furnace

Depending on the installed power density and the melting practice the thermal efficiency can exceed 80 %, but usually ranges from 60 to 70 %. If the efficiency of the electric power generation is taken into account, an overall efficiency of 15 - 20 % results, which is rather low in comparison with other furnace types. [Pg.37]

Without taking into account the efficiency for electric power generation. [Pg.37]

250 Iron from foundry returns and steel scrap [Pg.38]

500 and 1000 Steel melting and melting of wet cast iron borings [Pg.38]

The coreless induction furnace is used for melting but cannot be used for refining. Therefore, in steel foundries the induction furnace has to be charged with raw materials of the correct chemical composition, i.e. that corresponding to the required composition of the melt hence steel scrap is mainly used. If necessary, the metal can be refined after melting in an AOD converter or in special treatment ladles (see Section 2.4.12). [Pg.38]

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