Title:
異方性ボンド磁石の成形用金型及びこれを用いた製造方法
Document Type and Number:
Japanese Patent JP6878882
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a shaping mold which is superior in durability and enables the stable formation of surface magnetic flux density waveforms of an anisotropic bond magnet in shaping an anisotropic bond magnet.SOLUTION: A mold for shaping an anisotropic bond magnet comprises: a mold frame material 2 defining a cavity portion 3 in which a composition including a material of an anisotropic bond magnet to be shaped can be filled; orientation magnets 4 provided in position to front a composition Cm filled in the cavity portion 3, opposed to a plurality of magnetic poles Mp of the bond magnet to be shaped, and magnetically orienting a magnet material of the composition Cm in the cavity portion 3; and a divider member 5 for making division between the composition Cm in the cavity portion 3 and the orientation magnets 4. The divider member 5 is composed of a magnetic material of 1.35(T) or less in saturated magnetic flux density Js and 50 or more in Rockwell hardness HRC.SELECTED DRAWING: Figure 1
Inventors:
Yoshihiro Tsuboi
Hideki Matsuda
Hideki Matsuda
Application Number:
JP2016253500A
Publication Date:
June 02, 2021
Filing Date:
December 27, 2016
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
H01F41/02; H01F7/02; H01F13/00
Domestic Patent References:
| JP2005312166A | ||||
| JP2011114101A | ||||
| JP2005223233A | ||||
| JP2001167963A | ||||
| JP2005286235A | ||||
| JP2015195302A |
Foreign References:
| US20060139137 |
Attorney, Agent or Firm:
Akira Ueda
Masahiro Koizumi
Masahiro Koizumi