Title:
Ｒ－Ｔ－Ｂ系焼結磁石の製造方法
Document Type and Number:
Japanese Patent JP7439613
Kind Code:
B2
Abstract:
To provide a method for producing a novel R-T-B-based sintered magnet capable of further increasing a yield.SOLUTION: There is provide a method for producing an R-T-B based sintered magnet which comprises: a step of preparing a workpiece of a powder compact of a rare earth alloy for an R-T-B based sintered magnet; a step of cutting the workpiece to divide the workpiece into a plurality of molding pieces; and a step of sintering the molding pieces. The step of dividing the workpiece into a plurality of molding pieces comprises a step of cutting the workpiece by a wire saw including a plurality of abrasive grains having an average grain size of 1 μm or more and 24 μm or less and an element wire to which the plurality of abrasive grans adhere to recover powder particles of a rare earth alloy cut out from the workpiece.SELECTED DRAWING: Figure 1A
Inventors:
Futoshi Kuniyoshi
Ayuji Matsumoto
Kageyama Kyouhei
Takeshi Murata
Ayuji Matsumoto
Kageyama Kyouhei
Takeshi Murata
Application Number:
JP2020057456A
Publication Date:
February 28, 2024
Filing Date:
March 27, 2020
Export Citation:
Assignee:
Proterial Co., Ltd.
International Classes:
B22F3/24; B22F3/00; B22F8/00; B24B27/06; B24B55/12; B24D3/00; B24D11/00; B28D1/08; C22C33/02; H01F1/057; H01F41/02
Domestic Patent References:
| JP2003303728A | ||||
| JP2015166125A | ||||
| JP2003326449A |
Foreign References:
| US20040255924 |
Attorney, Agent or Firm:
Seiji Okuda
Shuichi Kita
Mimichi Kajitani
Shuichi Kita
Mimichi Kajitani