B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/126
B22D 27/00 (2006.01) B22D 1/00 (2006.01) C21C 1/10 (2006.01)
Patent
CA 1174830
ABSTRACT OF THE DISCLOSURE: It is known to contact molten cast iron with various treating agents in the casting mold in order to influence the base structure or the form of the graphite. Such casting molds for making castings of cast iron containing vermicular and/or spheroidal graphite are provided with an intermediate chamber, which is provided in the pouring system between the pouring gate and the ingate to the casting mold proper. That intermediate chamber serves to receive the graphitizing agent and to contact it with the molten cast iron. To permit a functional adaptation of the chamber surface area or the sur- face area of the treating agent contained in the chamber to the pouring rate, which changes as the pouring proceeds, the casting mold according to the present invention is provided with a frustopyramidal intermediate chamber which has a rec- tangular base disposed in the parting plane of the mold.
373539
Doliwa Ernst-Jurgen
Reifferscheid Karl J.
Wolfsgruber Friedrich
Metallgesellschaft Aktiengesellschaft
Robic Robic & Associes/associates
Skw Trostberg Ag
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