Effect of the Addition of Electrocorundum on Structural-Phase Transformations in the Quartz Lining of an Industrial-Frequency Crucible-Type Induction Furnace

摘要

Results are presented from studies of the phase interactions that take place between the metal, lining, slag, and gas inside the lining of an industrial-frequency crucible-type induction furnace (CIF). The lining is composed of quartzite, boric acid, and electrocorundum. The phase composition of the lining is determined. The lining lasted 295 heats in the production of ferrous-metal alloys at temperatures up to 1570A degrees C. The chemical and phase compositions of the slag-covered layer and the sintered layer of the lining are also determined.