Title:
希土類焼結磁石の製造方法
Document Type and Number:
Japanese Patent JP6689571
Kind Code:
B2
Abstract:
When a powder material (5) is molded by introducing the material into a cavity (11) between a lower punch (2) and a die (1), compression molding the material between upper and lower punches (3 and 2) into a compact (51) of desired shape, and moving up the lower punch (2) to eject the compact (51), a lubricant is applied to the interior surface of the die (1) by fitting a pad (24) around the lower punch (2) and impregnating the pad with the lubricant. Since the lubricant is applied on every molding operation, molding operation can be continuously carried out.
Inventors:
Osamu Kono
Umebayashi Masahiro
Nakamura Ryuji
Takahiro Hashimoto
Umebayashi Masahiro
Nakamura Ryuji
Takahiro Hashimoto
Application Number:
JP2015043326A
Publication Date:
April 28, 2020
Filing Date:
March 05, 2015
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
B30B11/00; B22F3/00; B22F3/02; B22F3/035; B30B11/02; C22C33/02; C22C38/00
Domestic Patent References:
| JP2000197997A | ||||
| JP2012234871A | ||||
| JP3721508Y2 | ||||
| JP2004106041A | ||||
| JP108102A | ||||
| JP2006142313A | ||||
| JP200286300A | ||||
| JP2013176583A | ||||
| JP2008272774A | ||||
| JP200912039A | ||||
| JP9168898A | ||||
| JP276695U | ||||
| JP2008221340A | ||||
| JP2005277180A | ||||
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Foreign References:
| US4150927 |
Attorney, Agent or Firm:
Takashi Kojima
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa
Katsuhiko Masaki
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa
Katsuhiko Masaki