MANUFACTURING METHOD OF BONDED MAGNET
To provide a manufacturing method of a bonded magnet capable of preventing mixed powder from scattering outside a cavity when a magnetic field is applied to the mixed powder before compression molding.SOLUTION: A manufacturing method of a bonded magnet 10 includes a magnetic field application step (...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a manufacturing method of a bonded magnet capable of preventing mixed powder from scattering outside a cavity when a magnetic field is applied to the mixed powder before compression molding.SOLUTION: A manufacturing method of a bonded magnet 10 includes a magnetic field application step (S2) of applying a magnetic field for orienting magnetic particles 11 to a mixed powder 10a containing the magnetic particles 11 and a binder 12 for binding the magnetic particles 11, and a compression molding step (S3) of compression-molding the mixed powder 10a after the magnetic field application step (S2), and the magnetic field application step (S2) is a step of applying a magnetic field to the mixed powder 10 in which the mixed powder 10a is sealed using a sealed container 20.SELECTED DRAWING: Figure 4
【課題】圧縮成形前に混合粉末に磁場を印加する場合に、混合粉末がキャビティの外部に飛散するのを防止することが可能なボンド磁石の製造方法を提供する。【解決手段】このボンド磁石10の製造方法は、磁粉11と磁粉11を結合するためのバインダー12とを含む混合粉末10aに対して磁粉11を配向するための磁場を印加する磁場印加工程(S2)と、磁場印加工程(S2)の後、混合粉末10aを圧縮成形する圧縮成形工程(S3)と、を備え、磁場印加工程(S2)は、混合粉末10aが密閉容器20を用いて密閉された混合粉末10に対して磁場を印加する工程である。【選択図】図4 |
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