Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Reexamination Certificate
2005-04-29
2008-11-18
King, Roy (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
Reexamination Certificate
active
07452402
ABSTRACT:
A method for producing an aluminum foam product wherein reactive gas producing particles are introduced into an aluminum alloy melt under controlled conditions and subjected to agitation to induce the production of foam-stabilizing by-products, and, under certain conditions, the production of gases used to produce the molten metal foam itself. Foam products produced through this method have intrinsically formed metal oxides and other solid particles dispersed therein and are devoid of the large extrinsically added stabilizing ceramic additions traditionally used in the production of aluminum foams. The invention claims a rapid, single step method for producing an inoculated, foamable melt using low cost precursor materials.
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English translation of Japanese patent document 55-138039.
Boren, Jr. William E.
Bryant J. Daniel
Crowley Mark D.
Genito Joseph R.
Kallivayalil Jacob A.
Alcoa Inc.
Greenberg & Traurig, LLP
King Roy
McGuthry-Banks Tima M
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