Formation of foundry core blocks

Details Formation of foundry core blocks Formation of foundry core blocks

1988-09-29

1990-06-12

Godici, Nicholas P.

Metal founding

Process

Shaping a forming surface

164137, B22C 910

Patent

active

049324594

ABSTRACT:
Channels or apertures are provided in a suitable area of the cores during the formation thereof in a first blowing machine, such that, on piling of the cores to form the block, and in the absence of additives between the contacting surfaces thereof, the apertures or channels are placed one adjacent another. Then a housing is defined, which affects the entire block in a longitudinal direction, and which subsequently molds a mixture of sand and a binder material, similar to a core in a second blowing machine. The material after hardening, acts as a coupling and stiffening arrangement between the cores forming the block.

REFERENCES:
patent: 2841838 (1958-07-01), Covitt
patent: 3727671 (1973-04-01), Kawai
patent: 3756309 (1973-09-01), Nishiyama et al.
patent: 4559989 (1985-12-01), Kawai et al.

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