Sand-forming apparatus

Details Sand-forming apparatus Sand-forming apparatus

2007-10-22

2008-10-28

Lin, Kuang (Department: 1793)

Metal founding

Process

Shaping a forming surface

C164S021000, C164S200000

Reexamination Certificate

active

07441583

ABSTRACT:
A sand-forming apparatus (10) comprising a sand magazine (12), a manifold (14), a core box (16) defining a cavity (18), a clamp table (20), and a blow tube assembly (22). The apparatus (10) is convertible from a sand-blowing state to a catalyst-introducing state without removal of the blow tube assembly (22) and/or un-clamping of the tool package (e.g., the manifold (14) and the cope/drag halves of the core box (16)). In the sand-blowing state, sand is blown from the magazine (12) into the cavity (18) and, in the catalyst-introducing state, the catalyst is introduced into the blown sand in the cavity (18) to solidify the sand into a sand-shape. Molten metal can be poured into or around the sand-shape formed by the apparatus (10) and, upon completion of casting the metal part, the sand-shape can be removed.

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EP 04 75 0629; Supplementary European Search Report dated May 22, 2006.

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