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Mitsubishi Metal Corp
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Mitsubishi Metal Corp
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Application filed by Mitsubishi Metal CorpfiledCriticalMitsubishi Metal Corp
Priority to JP6804980ApriorityCriticalpatent/JPS56166350A/en
Publication of JPS56166350ApublicationCriticalpatent/JPS56166350A/en
PURPOSE: To obtain the desired shape and size and high magnetic characteristics by molding Mn-Bi alloy powder obtd. by rapid cooling after melting, coating the surface of the molding with a protective film, and sintering the coated molding at a specified temp.
CONSTITUTION: Mn-Bi alloy powder obtd. by rapid cooling after melting is molded, and a protective film of Al, Cu, Ni or the like which is hardly reactive with the Mn-Bi alloy is formed on the surface of the molding by an ordinary method. The molding having the surface protective film is then sintered at 250W360°C. It is desirable to apply a magnetic field having ≥1KOe intensity in the sintering.
COPYRIGHT: (C)1981,JPO&Japio
JP6804980A1980-05-221980-05-22Manufacture of manganese-bismuth magnet
PendingJPS56166350A
(en)