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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING POWDER COMPACT
Document Type and Number:
Japanese Patent JP2012115891
Kind Code:
A
Abstract:

To provide a method for manufacturing a powder compact, capable of suppressing occurrence of cracking and chipping.

The method for manufacturing the powder compact 10 includes a compacting process for allowing both pestles 3, 4 to be abutted to carry out compacting of a raw material so that a predetermined gap G is generated between a circumferential edge 32a of a mold surface 32 of an upper pestle 3 and a circumferential edge 42a of a mold surface 42 of a lower pestle 4. The raw material is interposed in the gap G between the circumferential edge 32a of the mold surface 32 of the upper pestle 3 and the circumferential edge 42a of the mold surface 42 of the lower pestle 4 and the raw material interposed in the gap G is compacted. The upper pestle 3 or the lower pestle 4 where at least one of the mold surface 32 of the upper pestle 3 and the mold surface 42 of the lower pestle 4 has a recess and at least parts of the circumferential edges 32a, 42a of the mold surfaces 32, 42 include plane parts P with a width of 1.5 mm or less is used.


Inventors:
ISHIKAWA HISAO
Application Number:
JP2010269992A
Publication Date:
June 21, 2012
Filing Date:
December 03, 2010
Export Citation:
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Assignee:
KAO CORP
International Classes:
B30B11/00; B30B11/02
Domestic Patent References:
JP2001058294A2001-03-06
JP2008142347A2008-06-26
JP2010265503A2010-11-25
Attorney, Agent or Firm:
Osamu Hatori
Yoshiyuki Matsushima