Lost foam casting apparatus and method for creating hollow...

Details Lost foam casting apparatus and method for creating hollow... Lost foam casting apparatus and method for creating hollow...

2006-12-19

2006-12-19

Lin, Kuang Y. (Department: 1725)

Metal founding

Process

Shaping a forming surface

C164S035000

Reexamination Certificate

active

07150307

ABSTRACT:
A method and apparatus is disclosed for forming a metal casting sprue for a lost foam casting process, the sprue formed in sand for receiving molten metal and directing the molten metal to a foam pattern in a mold cavity, wherein the sprue formation is facilitated by an insert having a plurality of apertures formed therein, the apertures facilitating an application of a coating to sand surrounding the insert prior to removal of the insert from the sand, and wherein the sprue facilitates a minimization of production costs and an optimization of material properties of the resultant casting.

REFERENCES:
patent: 4828006 (1989-05-01), Vander Jagt
patent: 6619373 (2003-09-01), Tooley et al.
patent: 1-127138 (1989-05-01), None

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