Additive for foundry sand preblends

Details Additive for foundry sand preblends Additive for foundry sand preblends

1996-04-22

1997-07-29

Marcheschi, Michael

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3827, 106 389, B28B 734, B28B 736

Patent

active

056518153

ABSTRACT:
An additive for foundry sand preblends providing reduced smoke and other emissions, the additive comprising a mixture of one part iron oxide, one part of a highly volatile carbonaceous material such as gilsonite, and four parts of metallurgical coke. The additive is used as one quarter of the foundry sand preblend, the other three quarters consisting essentially of clays.

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