Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1994-02-16
1995-10-17
Rosenbaum, Mark
Metal founding
Process
Shaping liquid metal against a forming surface
264 60, 2643281, B22D 1914
Patent
active
054581818
ABSTRACT:
A fiber-organic composition includes from about 5% to 50% by volume of uniformly dispersed, non-planar or three dimensionally random oriented inorganic fibers or whiskers, and a thermoplastic material such as paraffin wax. The composition also includes surfactants to promote wetting and dispersion of the inorganic fibers or whiskers. These materials are subjected to high shear mixing to form a uniform randomly oriented three-dimensional dispersion of the inorganic fibers or whiskers. After molding the mixture in such a manner so as not to disrupt the uniform, three-dimensional orientation of the fibers or whiskers, a majority of the thermoplastic material is removed leaving a shaped body or preform having sufficient strength for handling. The shaped body or preform can then be infiltrated with molten metal or the like to form a metal matrix composite.
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patent: 3828839 (1974-08-01), Dhinga
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patent: 4548253 (1985-10-01), Fanatani et al.
patent: 4995444 (1991-02-01), Jolly et al.
patent: 5167271 (1992-12-01), Lange et al.
Corbett William J.
Lunde Marvin C.
Shaffer Peter T. B.
Herrick Randolph S.
Rosenbaum Mark
Technical Ceramics Laboratories, Inc.
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