Casting core fabrication apparatus

Details Casting core fabrication apparatus Casting core fabrication apparatus

1997-08-19

1999-06-29

Batten, Jr., J. Reed

Metal founding

Means to shape a forming surface

Shell type mold making machine

164 21, B22C 1308

Patent

active

059154519

ABSTRACT:
A mold sand feeding tank 4 is provided for feeding mold sand S into a hollow core molding portion 2 defined by a pair of molds 1a and 1b mating with each other. A switching valve 7 is disposed within the mold sand feeding tank 4 and has a mold sand feeding opening 5, through which the mold sand S is fed into the mold sand feeding tank 4 from the outside, and a mold sand discharging opening 6, through which non-hardened mold sand Sb within the hollow core molding portion 2 is directly and externally discharged.

REFERENCES:
patent: 4129169 (1978-12-01), Biedacha et al.
patent: 4232726 (1980-11-01), Michelson

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