Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Utilizing diverse solid particles
Patent
1986-05-15
1988-03-29
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Utilizing diverse solid particles
264 63, 264109, 2643282, 26432814, 26432817, 419 36, 501 87, C04B 3564, B29C 4572, B22F 100
Patent
active
047342374
ABSTRACT:
A process for shaping parts from metallic and/or ceramic powders is disclosed. The process comprises the steps of forming a mixture comprising metal and/or ceramic powders, a gel-forming material having a gel strength, measured at a temperature between 0.degree. C. and about 22.degree. C. and a gel consisting essentially of about 4 wt. % of the gel-forming material and water, of at least about 100 g/cm.sup.2, and a gel-forming material solvent, and molding the mixture at a temperature sufficient to produce a self-supporting article comprising the powder and a gel. The preferred gel-forming material is an agaroid and the preferred molding process is injection molding.
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Sarkar et al., "Methylcellulose Polymers as Multi Functional . . . ", Ceramics Bulletin, vol. 62, No. 11, pp. 1280-1288, (1983).
Fanelli Anthony J.
Silvers Robert D.
Allied Corporation
Buff Ernest D.
Fuchs Gerhard H,.
McCarthy Neil Michael
Silbaugh Jan H.
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