Apparatus for injection molding metallic materials

Details Apparatus for injection molding metallic materials Apparatus for injection molding metallic materials

2005-03-29

2005-03-29

Lin, Kuang Y. (Department: 1725)

Metal founding

Means to shape metallic material

Pressure shaping means

C164S113000, C164S135000

Reexamination Certificate

active

06871691

ABSTRACT:
A method for injection molding a metallic material is disclosed in which an injecting material comprised of a half-solidified metallic material and a molten metallic material is injected into a cavity of a die from an injection cylinder through a gate thereof. A non-product portion remaining at the gate of the die is separated from a product portion while it is still hot. The separated high-temperature non-product portion is press-formed into a billet in the injection cylinder. Utilization of heat from the injecting material in melting the high-temperature billet enables reuse of the non-product portion remained at the gate and reduction of heat energy required in melting the billet.

REFERENCES:
patent: 5784140 (1998-07-01), Lee
patent: 6298901 (2001-10-01), Sakamoto et al.
patent: 28 46 512 (1980-05-01), None
patent: 198 00 593 (1999-07-01), None

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