Title:
CASTING MOLD FORMING APPARATUS AND METAL MOLD UNIT FOR USE THEREIN
Document Type and Number:
WIPO Patent Application WO/2005/089984
Kind Code:
A1
Abstract:
A casting mold forming apparatus for forming a casting mold by charging under pressure a foamed mixture, the foamed mixture obtained by agitating together of a granular aggregate, a water-soluble binder and water, into the cavity of a heated metal mold; and a metal mold unit for use therein. It is intended to provide a casting mold forming apparatus that is capable of effective utilization of the foamed mixture and capable of satisfactorily ensuring of charging of fluid sand into the metal mold cavity, and to provide a metal mold unit that is capable of striking shortening of hardening time of the foamed mixture. In particular, there is provided a casting mold forming apparatus comprising mixture accommodating means (10) simultaneously fulfilling the function as an agitation vessel for agitation of a granular aggregate, a water-soluble binder and water and the function as a pressure charging column for accommodating the mixture to be charged under pressure, which mixture accommodating means (10) includes hollow rectangular parallelepiped (12) that constitutes a rectangular parallelepiped and has a vertically through hollow, the hollow rectangular parallelepiped (12) having its lower end opening closed with bottom plate (14), this bottom plate (14) provided in through form with injection holes (13) for mixture injection, and further comprising stopper means (22) capable of closing the injection holes (13). Still further, the casting mold forming apparatus comprises at least one of means for measuring the temperature of granular aggregate or foamed mixture, means for measuring the viscosity of foamed mixture and means for measuring the water content of foamed mixture. Moreover, there is provided a metal mold unit comprising communicating means (103) for communication of casting die cavity interior with external air within such an extent that gases are passed but granular aggregate is not passed therethrough.
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Inventors:
ZENPO TOSHIHIKO (JP)
KATO YUSUKE (JP)
ASANO NORIHIRO (JP)
NAGASAKA MASAHIKO (JP)
NISHIKAWA KAZUYUKI (JP)
TANAKA MOTOYASU (JP)
KATO YUSUKE (JP)
ASANO NORIHIRO (JP)
NAGASAKA MASAHIKO (JP)
NISHIKAWA KAZUYUKI (JP)
TANAKA MOTOYASU (JP)
Application Number:
PCT/JP2005/005126
Publication Date:
September 29, 2005
Filing Date:
March 22, 2005
Export Citation:
Assignee:
SINTOKOGIO LTD (JP)
ZENPO TOSHIHIKO (JP)
KATO YUSUKE (JP)
ASANO NORIHIRO (JP)
NAGASAKA MASAHIKO (JP)
NISHIKAWA KAZUYUKI (JP)
TANAKA MOTOYASU (JP)
ZENPO TOSHIHIKO (JP)
KATO YUSUKE (JP)
ASANO NORIHIRO (JP)
NAGASAKA MASAHIKO (JP)
NISHIKAWA KAZUYUKI (JP)
TANAKA MOTOYASU (JP)
International Classes:
B22C5/04; B22C15/02; B22C15/08; B22C19/04; (IPC1-7): B22C15/08; B22C5/04
Foreign References:
| JPS564342A | 1981-01-17 | |||
| JP2000190049A | 2000-07-11 | |||
| JPH10225745A | 1998-08-25 | |||
| JPH0780599A | 1995-03-28 | |||
| JPH0857577A | 1996-03-05 |
Other References:
See also references of EP 1749598A4
Attorney, Agent or Firm:
Yamasaki, Yukuzo (8F 11-28, Nagatacho 1-chom, Chiyoda-ku Tokyo 14, JP)
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