Bonded sand sprue cup

Details Bonded sand sprue cup Bonded sand sprue cup

1984-07-26

1986-07-08

Godici, Nicholas P.

Metal founding

Process

Shaping liquid metal against a forming surface

164364, 164412, B22D 3304

Patent

active

045987572

ABSTRACT:
A disposable sprue cup for use in a metal casting process using a mold pattern embedded in unbound process sand having a grain size, the disposable sprue cup being made of bonded sand having a grain size substantially equal to the grain size of the process sand and having a binder that breaks down under the heat of resident metal remaining in the cup after the casting process is completed.

REFERENCES:
patent: 1657952 (1928-01-01), Zoda
patent: 2198498 (1940-04-01), Hagemeyer
patent: 2269455 (1942-01-01), Hagemeyer
patent: 2784467 (1957-03-01), Gans, Jr.
patent: 2835007 (1958-05-01), Hoefer
patent: 2845669 (1958-08-01), Hackett et al.
patent: 3526266 (1970-09-01), Snelling
patent: 3841846 (1974-10-01), Larsen et al.
patent: 3844337 (1974-10-01), Bessett et al.
patent: 4154285 (1979-05-01), Yamasaki
patent: 4506813 (1985-03-01), Dughan

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