B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/183, 22/188,
B22D 18/04 (2006.01) B22D 1/00 (2006.01) B22D 18/06 (2006.01) B22D 27/00 (2006.01) B22D 27/20 (2006.01) C22C 33/08 (2006.01)
Patent
CA 2030495
DIFFERENTIAL PRESSURE, COUNTERGRAVITY CASTING WITH ALLOYANT REACTION CHAMBER Abstract Of The Disclosure A casting mold (e.g., a cope and drag) is disposed on a drag slab having a sprue and a reaction chamber containing an alloyant to be selectively introduced into the melt as it is drawn through the reaction chamber during differential pressure, countergravity casting. A runner formed between the mold and the drag slab communicates the reaction chamber to a plurality of narrow mold ingates that supply the melt treated (alloyed) in the reaction chamber to the mold cavity during countergravity casting.
Doty Herbert
General Motors Corporation
Macrae & Co.
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