IRON-BASED ALLOY MAGNET MANUFACTURING METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an iron-based alloy magnet having a crystalline phase structure which cannot be obtained through a usual liquid quenching method. SOLUTION: A method of manufacturing an iron-based alloy magnet comprises a quenching process (primary roll period) of forming the supercooled liquid of a material alloy by quenching the melt of an iron-based alloy magnet material alloy, and a temperature control process (secondary roll period) of temporarily heating the supercooled liquid before the temperature of the supercooled liquid drops to a glass transition point Tg or below. Therefore, the alloy is cooled down following a cooling route P6, so that a quench alloy containing crystal phases B sand C can be obtained.