Metering device for metal casting machines, particularly low pre

Details Metering device for metal casting machines, particularly low pre Metering device for metal casting machines, particularly low pre

1975-06-25

1977-09-13

Husar, Francis S.

Metal founding

Means to shape metallic material

Pressure shaping means

164155, 425145, B22D 1116, B22C 1904

Patent

active

040475581

ABSTRACT:
A metering device and method for introducing molten metal from a reservoir into a mold, the metering device including a pilot valve, a control valve actuated by the pilot valve, and an analog computer controlling operation of the pilot valve, the computer receiving signals corresponding to the speed of filling of the mold, the magnitude of the pressure up to solidification of the first casting in the mold, and the change in pressure in the reservoir due to decrease in the metal level in the reservoir.

REFERENCES:
patent: 3302254 (1967-02-01), Moriyama
patent: 3385473 (1968-05-01), Forcesi
patent: 3459254 (1969-08-01), Dearth
patent: 3844331 (1974-10-01), Py et al.
patent: 3861457 (1975-01-01), Py
patent: 3920367 (1975-11-01), Ma et al.

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