Title:
METHOD FOR MANUFACTURING R-T-B BASED SINTERED MAGNET
Document Type and Number:
WIPO Patent Application WO/2023/181772
Kind Code:
A1
Abstract:
A method for manufacturing an R-T-B based sintered magnet according to the present disclosure comprises: a milling step for preparing a powder of an alloy for an R-T-B based sintered magnet; a molding step for fabricating a powder molded body using the powder; a cutting step for cutting and dividing the powder molded body into a plurality of molded body pieces; and a sintering step for sintering each of the plurality of molded body pieces to fabricate a plurality of sintered bodies. The cutting step includes a step for forming one or a plurality of cut surfaces including a curved surface, by cutting the powder molded body, submerged in a liquid, with a wire running in a horizontal direction, and by causing the wire to move in an arbitrary incising direction perpendicular to the running direction.
Inventors:
MURATA TAKESHI
Application Number:
PCT/JP2023/006577
Publication Date:
September 28, 2023
Filing Date:
February 22, 2023
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
H01F41/02; B22F3/00; B22F9/04; B24B27/06; C22C38/00; H01F1/057
Foreign References:
| JP2021155811A | 2021-10-07 | |||
| JP2005268668A | 2005-09-29 | |||
| JP2003303728A | 2003-10-24 | |||
| JP2002036113A | 2002-02-05 | |||
| JP2006283100A | 2006-10-19 |
Attorney, Agent or Firm:
OKUDA Seiji (JP)
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