Compression-molding method and device for permanent magnet

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United States of America Patent

PATENT NO 11756729
APP PUB NO 20220344097A1
SERIAL NO

17434415

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Abstract

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A compression-molding method for a permanent includes: providing a drive coil to generate an electromagnetic force when a transient current is passed into the drive coil, so as to apply a molding compression force to magnetic powder under compression, and providing an orientation coil to generate an orientation magnetic field when a transient current is passed into the orientation coil, thereby providing the magnetic powder under compression with an anisotropic property; and synchronously passing the transient currents to the drive coil and the orientation coil to synchronously generate the electromagnetic force and the orientation magnetic field, thereby completing compression-molding of the permanent magnet, wherein a magnitude of the electromagnetic force and an intensity of the orientation magnetic field are respectively changed by changing peak values of the transient currents.

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Patent Owner(s)

Patent OwnerAddress
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY430074 HUBEI PROVINCE WUHAN CITY HONGSHAN DISTRICT LUOYU ROAD NO 1037 WUHAN CITY HUBEI PROVINCE 430074

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Liang Hubei, CN 515 3124
Lv, Yiliang Hubei, CN 2 0

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