B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/157, 22/183,
B22D 18/04 (2006.01) B22C 1/02 (2006.01) B22C 9/12 (2006.01) B22D 18/06 (2006.01) B22D 27/20 (2006.01) C22C 33/08 (2006.01)
Patent
CA 2030494
DIFFERENTIAL PRESSURE, COUNTERGRAVITY CASTING OF A MELT WITH A FUGATIVE ALLOYANT Abstract Of The Disclosure Apparatus and method for the differential pressure, countergravity casting of a melt of molten metal, such as nodular iron, containing a fugative alloyant, such as a magnesium nodularizing agent, susceptible to rapid loss from the melt over time wherein a source of the alloyant is so disposed on a lower portion of each mold as to contact the melt and replenish the alloyant content thereof when the lower mold portion of each mold is immerssd in the melt for casting. An effective level of alloyant is thereby maintained in the melt throughout the casting of a plurality of molds in succession from the melt.
General Motors Corporation
Macrae & Co.
Sabraw Richard J.
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