Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1992-02-28
1993-03-30
Batten, Jr., J. Reed
Metal founding
Process
Shaping liquid metal against a forming surface
164365, 164366, 164367, B22C 910, B22C 922
Patent
active
051975327
ABSTRACT:
A closed mold for a cylinder head is provided having two widely spaced wall portions, at least one of the widely spaced wall portions being in communication with the atmosphere through an opening in the closed mold. The widely spaced wall portions define the ends of a long open cavity within the mold and provide core supporting portions for a long, narrow core element adapted to form an elongated, narrow open cavity within the casting. A narrow core element is provided between the core supporting portions of the widely spaced wall portions of the mold without intervening support. The long narrow core element comprises an outer portion of casting sand adapted to form the walls of the elongated, narrow open cavity of the casting extending between the core supporting portions. The narrow core element further comprises an inner portion for supporting the long, narrow core element and for providing a gas passage extending to the one wall portion. Molten metal is poured into the closed mold and the long open mold cavity while permitting gas emitted from the casting sand to escape to the atmosphere by carrying the gas to the atmosphere with the inner portion of the long, narrow core element and the opening in the closed mold.
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Batten, Jr. J. Reed
Navistar International Transportation Corp.
Sullivan Dennis K.
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