Mold-blowing apparatus

Details Mold-blowing apparatus Mold-blowing apparatus

1984-04-12

1986-02-18

Godici, Nicholas P.

Metal founding

With positive cleaning means for apparatus

164200, 164201, 164202, B22C 1522

Patent

active

045706948

ABSTRACT:
As in the parent application, a freshly mixed quick-setting sand mix is blown from a blow box into a mold while a plunger moves through the blow box to chase all of the fluidized sand into the mold. Here, the blow box sand cavity is formed by a tube extending downward but leaving an annular gap above the blow plate. The fluidizing air tends to move bottom sand directly through the center exit in the blow plate. With quick setting sand, any residue is blown into a purge pan while the plunger is advanced. With sand that is not quick setting, and without the plunger, nearly all residual sand settles and tends to be the first blown into the mold during the succeeding blow.

REFERENCES:
patent: 2611938 (1952-09-01), Hansberg
patent: 3590906 (1971-07-01), Bayliss et al.
patent: 3999592 (1976-12-01), Kopp et al.
patent: 4135569 (1977-07-01), Drobnik et al.

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