Title:
CORE FOR PRECISION CASTING, PRODUCTION METHOD THEREFOR, AND MOLD FOR PRECISION CASTING
Document Type and Number:
WIPO Patent Application WO/2014/192825
Kind Code:
A1
Abstract:
A core for precision casting, comprising a precision casting core main body formed as a result of mixing and sintering silica particles and silica fume. A precision casting core having silica fume added thereto has smaller resistance during heating/injection molding and improved fluidity as a result of silica fume addition. As a result, injection molding pressure when producing cores can be reduced because fluidity is improved. Furthermore, the present invention can be applied to thin-walled molded articles requiring improved fluidity and molded articles having a complicated shape.
Inventors:
OGUMA HIDETAKA (JP)
MORI KAZUTAKA (JP)
OKADA IKUO (JP)
SHIMOHATA SACHIO (JP)
MORI KAZUTAKA (JP)
OKADA IKUO (JP)
SHIMOHATA SACHIO (JP)
Application Number:
PCT/JP2014/064166
Publication Date:
December 04, 2014
Filing Date:
May 28, 2014
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
B22C9/10; B22C1/00; B22C3/00; B22C9/04
Foreign References:
| JP2003170245A | 2003-06-17 | |||
| JP2004528988A | 2004-09-24 | |||
| JPH0747444A | 1995-02-21 |
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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