Title:
MOLD FOR MANUFACTURING SINTERED MAGNET AND METHOD FOR MANUFACTURING SINTERED MAGNET USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/174935
Kind Code:
A1
Abstract:
The problem addressed by the present invention is to provide a mold for manufacturing a sintered magnet capable of increasing the uniformity of filling density in alloy powder, facilitating cleaning the inside thereof, and preventing the alloy powder from biting into a gap between a lid and a cavity. A main body (11) comprises: a main body cavity (111) comprising a rectangular upper cavity (111A) formed inside a main body surface (110A) and a partially cylindrical lower cavity (111B) projecting downward, arranged adjacent to the lower end of the rectangular upper cavity (111A); and partially cylindrical side cavities (112) having an axis parallel to the axis of the partially cylindrical lower cavity (111B), which are respectively provided inside a main body surface (110A) at both outer sides, in the axial direction of the partially cylindrical shape, of an opening for the upper cavity (111A) in the main body surface (110A). A lid (12) comprises: a basic surface (110A) corresponding to the main body surface (110A); and a projection rib (122) projecting from the basic surface (110A) corresponding to the two side cavities (112) and a partially cylindrical virtual cavity connecting both the side cavities (112).
Inventors:
KOMURA KAZUYUKI (JP)
SAGAWA MASATO (JP)
SAGAWA MASATO (JP)
Application Number:
PCT/JP2014/057263
Publication Date:
October 30, 2014
Filing Date:
March 18, 2014
Export Citation:
Assignee:
INTERMETALLICS CO LTD (JP)
International Classes:
H01F41/02; B22F1/14; B22F3/00; B22F3/02
Domestic Patent References:
| WO2006004014A1 | 2006-01-12 | |||
| WO2006004014A1 | 2006-01-12 |
Foreign References:
| JP2007180375A | 2007-07-12 | |||
| JPH04363010A | 1992-12-15 | |||
| JPH0696973A | 1994-04-08 | |||
| JPH05101957A | 1993-04-23 | |||
| JP4391980B2 | 2009-12-24 |
Other References:
See also references of EP 2991086A4
Attorney, Agent or Firm:
Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)
Patent business corporation Kyoto international patent firm (JP)
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