Method and apparatus for the injection molding of metal alloys

Details Method and apparatus for the injection molding of metal alloys Method and apparatus for the injection molding of metal alloys

1989-02-10

1991-08-20

Seidel, Richard K.

Metal founding

Process

Shaping liquid metal against a forming surface

164312, 164900, B22D 1700

Patent

active

050405896

ABSTRACT:
A method and apparatus for injection molding a metal alloy wherein the alloy is maintained in a thixotropic, semi-solid state in a reciprocating extruder at temperatures above its solidus temperature and below its liquidus temperature in the presence of shearing and then injected as a thixotropic slurry into a mold to form a useful product. Following completion of the injection molding stroke the nozzle of the extruder is sealed by a solidifying a portion of the residue of the alloy remaining in the nozzle.

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