Molding method for powder particles

Details Molding method for powder particles Molding method for powder particles

1997-06-26

1999-10-19

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

264649, 264651, 264669, 264670, 264125, 419 36, 419 37, 419 42, 419 63, 419 10, B28B 126, B28B 300, B22F 300

Patent

active

059684283

ABSTRACT:
Disclosed is a molding method for powder particles, which is excellent in molding performance, and which makes it possible to obtain a preliminary molded product excellent in strength by enhancing mutual bonding between particles in the preliminary molded product. A molding apparatus for powder particles includes an outer frame die having a mold space with a lower punch and an upper punch to be slidably fitted thereto. Slight clearances exist between the outer frame die and the lower and upper punches. A mixture is prepared by mixing a powdery raw material with a liquid additive to cause an exothermic reaction therewith.

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patent: 4814302 (1989-03-01), Matje et al.
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patent: 5164138 (1992-11-01), Dietl et al.
patent: 5242872 (1993-09-01), Taniguchi et al.

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