Apparatus for making shells from thermosetting liquid compounds

Details Apparatus for making shells from thermosetting liquid compounds Apparatus for making shells from thermosetting liquid compounds

1977-07-06

1978-12-12

Husar, Francis S.

Metal founding

Means to shape a forming surface

Shell type mold making machine

164 21, 164 43, B22C 1308

Patent

active

041291697

ABSTRACT:
Apparatus for making shells from thermosetting liquid compounds in which at a first station, a travelling and heated permanent metal mould becomes filled with a thermosetting liquid compound. The mould is then moved to a second station where it is held until a shell wall of desired thickness is obtained. Thereafter, the mould is transferred to a further station where excess thermosetting compound is recovered and dispensed to an accumulative mixer to be used again. Subsequently, the metal mould is passed to a final station where it is opened and the ready shell removed. The apparatus comprises said and liquid constituent containers, a sand feeder and two mixers, namely, a basic mixer and an accumulative mixer. The apparatus is provided with a unit for proportioning the liquid constituents and a delivery unit to force the compound into the mould.

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