Process for preparing a test casting and test casting...

Details Process for preparing a test casting and test casting... Process for preparing a test casting and test casting...

2009-09-04

2011-11-15

Kerns, Kevin P (Department: 1735)

Metal founding

Process

With measuring, testing, inspecting, or condition determination

C164S150100

Reexamination Certificate

active

08056604

ABSTRACT:
A test casting is useful for predicting the severity of skin that will form when compacted graphite iron or ductile iron is cast using a selected foundry mix. The mold is made from the foundry mix and has a gating system with at least two ingates, and with a hollow cylindrical shape associated with each ingate. The hollow cylindrical shapes are substantially the same height, but the diameter of each varies by at least 20% from the diameter of any of the other cylindrical shapes. Molten metal poured into the gating system fills each of the hollow cylindrical shapes. When the metal cools and solidifies, a solid cylinder of the metal is produced in each hollow cylindrical shape. The solid metal cylinders, each with a distinct diameter, are cut and inspected to measure the skin formed thereon.

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Flavia C. Duncan and Jorg Kroker, “Difficulties in Controlling and Measuring Flake Skin in CGI” Metal Casting Technologies, 53(3), 62 (2007).
International Search Report and Written Opinion from the ISA received in the corresponding PCT application, mailed Oct. 21, 2010.

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