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US4221614A Method of manufacturing ferromagnetic magnetic metal powder 失效
铁磁性金属粉末制造方法

Method of manufacturing ferromagnetic magnetic metal powder
摘要:
A method of manufacturing a ferromagnetic metal powder characterized by continuously drying a slurry of ferromagnetic metal powder formed by wet reduction, in a non-oxidizing gas atmosphere, and subsequently continuously heat-treating the dried ferromagnetic metal powder in a non-oxidizing gas atmosphere. The continuous method prevents the ferromagnetic metal powder from being exposed to excess oxygen to enhance the magnetic properties of the ferromagnetic metal powder. Also, the production efficiency is enhanced.
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