Plastic and nonmetallic article shaping or treating: processes – Including step of generating heat by friction
Patent
1991-10-23
1993-06-01
Derrington, James
Plastic and nonmetallic article shaping or treating: processes
Including step of generating heat by friction
264 63, 264 67, 264128, 264133, C04B 4183
Patent
active
052156931
ABSTRACT:
A method is provided for forming machinable ceramic compacts, which are in the unfired, preconsolidated condition. The method of this invention adds the binder to the ceramic powder mixture after the compact is formed by compaction, as opposed to conventional practice wherein the binder is added to the mixture prior to compaction. The unfired ceramic compacts which are formed by the method of this invention are characterized by high strength, excellent durability and enhanced machinability.
REFERENCES:
patent: 3056704 (1962-10-01), Rothweiler
patent: 3953562 (1976-04-01), Hait et al.
patent: 4045412 (1977-08-01), Yamada et al.
patent: 4127629 (1978-11-01), Weaver et al.
Teter "Binders for Machinable Ceramics", In Ceramic Age 82 [8] 1966, pp. 30-32.
Derrington James
General Motors Corporation
Grove George A.
Hartman Domenica N. S.
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