Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2005-12-13
2005-12-13
Kerns, Kevin P. (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
Reexamination Certificate
active
06973954
ABSTRACT:
A method of casting parts with gray iron includes the steps of providing molten gray iron metal with controlled carbon, silicon, phosphorous, sulfur, manganese and chromium content; alloying said molten gray iron metal, prior to pouring, with tin to a total tin content of about 0.05% to about 0.10%; inoculating said molten tin-alloyed gray iron metal, prior to pouring, with a gray iron inoculant to an additional silicon addition of from about 0.10% to about 0.12%; and casting the gray iron part from said molten, tin-alloyed inoculated gray iron metal as son as possible after said inoculation.
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Janowak, J.F. and R.B. Gundlach, “A Modern Approach To Alloying Gray Iron,” AFS Transactions, 1982, pp. 1-17, vol. 90.
Fuller, A.G., “Effect of Manganese And Sulfur On Mechanical Properties And Structure Of Flake Graphite Cast Irons,” AFS Transactions, 1986, pp. 863-872, vol. 94.
Calfa Jeffrey P.
International Engine Intellectual Property Company LLC
Kerns Kevin P.
Lukasik Susan L.
Sullivan Dennis Kelly
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