Title:
PROCESS AND EQUIPMENT FOR PRODUCING SINTERED MAGNET
Document Type and Number:
WIPO Patent Application WO/2013/115325
Kind Code:
A1
Abstract:
[Problem] To provide a process for producing a sintered magnet, said process reducing the machining allowance in working a sintered magnet and thus enhancing the materials yield. [Solution] This process includes: a forming step of press-forming a magnet powder, which is to constitute an R-Fe-B sintered magnet (wherein R is a rare earth element component comprising Nd as the main component), to form a green compact through the compression of the magnet powder; a sintering step of heating the green compact to a prescribed temperature to sinter the green compact and thus form a sintered magnet; and a dimension correction step of pressure-molding the sintered magnet with the sintered magnet heated to a temperature not exceeding the sintering temperature to correct the dimensions of the sintered magnet.
Inventors:
SAKO MICHIHIRO
FUJIKAWA SHINICHIROU
IKEDA AKIHIKO
MATSUNAE HIROKI
FURUYA TAKASHI
SAITOH MASAKI
FUJIKAWA SHINICHIROU
IKEDA AKIHIKO
MATSUNAE HIROKI
FURUYA TAKASHI
SAITOH MASAKI
Application Number:
PCT/JP2013/052235
Publication Date:
August 08, 2013
Filing Date:
January 31, 2013
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
H01F41/02; B22F3/00; B22F3/24; C22C33/02; H01F1/057; H01F1/08
Foreign References:
| JPH01270210A | 1989-10-27 | |||
| JPS62262405A | 1987-11-14 | |||
| JPS61140108A | 1986-06-27 | |||
| JPS58164704A | 1983-09-29 | |||
| JP2005079401A | 2005-03-24 | |||
| JPH09327744A | 1997-12-22 | |||
| JPH05255708A | 1993-10-05 | |||
| JPS61136656A | 1986-06-24 |
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
Hatta international patent business corporation (JP)
Hatta international patent business corporation (JP)
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Claims: