Title:
永久磁石成形装置
Document Type and Number:
Japanese Patent JP4783396
Kind Code:
B2
Abstract:
This invention relates to a permanent magnet molding apparatus and has as an object an improvement in productivity and reliability thereof. This invention includes a transferable metal die unit (7) including a die having a cavity of a desired cross-sectional shape in which magnet molding material powder is filled, the cavity extending in groovelike form in a specific direction on a surface of the die, a lid member placed to cover the cavity, and a pair of punches having the same cross-sectional shape as the cavity,'the punches being capable of fitting in the cavity from both ends thereof and made slidable in directions in which the punches go into contact with and become separated from the magnet molding material powder, pressurizing means (17, 18) for holding the metal die unit (7) which has been transferred with the magnet molding material powder filled in the cavity and for pressurizing the magnet molding material powder by driving the two punches such that the punches slide in their approaching directions, and magnetic field generating means (21, 22) for magnetizing the pressurized magnet molding material powder while applying a magnetic field thereto in a direction perpendicular to a direction of pressurization.
Inventors:
Cormorant fishing
Taizo Iwami
Yuji Nakahara
Yasuo Ozeki
Taizo Iwami
Yuji Nakahara
Yasuo Ozeki
Application Number:
JP2008128153A
Publication Date:
September 28, 2011
Filing Date:
May 15, 2008
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
B30B11/00; B22F3/00; B22F3/02; B22F3/03; B22F3/035; B30B11/02; H01F41/02
Domestic Patent References:
| JP48016320Y1 | ||||
| JP5043904A | ||||
| JP2002105505A | ||||
| JP7266091A | ||||
| JP3022508A | ||||
| JP1114009A | ||||
| JP2000323341A |
Attorney, Agent or Firm:
Keigo Murakami
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo
Masuo Oiwa
Toshihide Kodama
Takenaka Ikuo