Title:
希土類系永久磁石の製造方法、及び希土類系永久磁石の製造装置
Document Type and Number:
Japanese Patent JP7259651
Kind Code:
B2
Abstract:
To provide a manufacturing method of rare-earth permanent magnet capable of diffusing heavy rare earth elements uniformly into a magnet base material.SOLUTION: A manufacturing method of rare-earth permanent magnet includes an adhesion process of adhering heavy rare-earth elements to the surface 2s of a magnet 2, and a diffusion process of diffusing the heavy rare-earth elements into the magnet 2, by heating the magnet 2 to which the heavy rare-earth elements are adhering. The adhesion process includes a patterning step of forming a prescribed pattern 4 composed of a coating component 4a containing the heavy rare-earth elements on the surface of a plate 6, a first transfer step of transferring the pattern 4 from the plate 6 to the surface 8s of a transfer member 8, by bringing the elastic transfer member 8 into contact with the plate 6, and a second transfer step of transferring the pattern 4 from the transfer member 8 to the surface 2s of the magnet 2, by bringing the transfer member 8 to which the pattern 4 is transferred into contact with the magnet 2.SELECTED DRAWING: Figure 4
Inventors:
Kiyoyuki Masuzawa
Application Number:
JP2019159769A
Publication Date:
April 18, 2023
Filing Date:
September 02, 2019
Export Citation:
Assignee:
tdk Corporation
International Classes:
H01F41/02; B22F3/24; H01F1/057
Domestic Patent References:
| JP2018026390A | ||||
| JP2011233663A | ||||
| JP2018078275A | ||||
| JP2011156847A | ||||
| JP7251561A | ||||
| JP2015217652A | ||||
| JP2006347154A |
Foreign References:
| WO2013061836A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Mikami Takashi
Yoshiki Kuroki
Mikami Takashi
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