Device and method for fabricating foundry molds from granular ma

Details Device and method for fabricating foundry molds from granular ma Device and method for fabricating foundry molds from granular ma

1992-01-23

1993-06-15

Seidel, Richard K.

Metal founding

Process

Shaping a forming surface

164 71, 164 39, 1641601, 1641602, 164203, B22C 1522

Patent

active

052190145

ABSTRACT:
The invention concerns a device and method for continuous fabricating of foundry molds from granular material.
The device consists of a frame (10) with lights (11) supporting through swivels (31) caissons (30, 40) with large partitions (42) provided with grooves (421) into which pattern-plates (60) are inserted, and with small partitions (43) provided with suction holes (431); the caissons being connected to a vacuum source through flexible hoses controlled by solenoid valves; the whole assembly being placed after heat-forming of a polymer film (92) around a grid (70) with a hollow rib (74) and filter (741) connected to a vacuum source through a connector (75).

REFERENCES:
patent: 3952793 (1976-04-01), Hijikata et al.
patent: 4940071 (1990-07-01), Mazeran

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