Diecasting machine

Details Diecasting machine Diecasting machine

2006-02-28

2006-02-28

Kerns, Kevin P. (Department: 1725)

Metal founding

Means to shape metallic material

Pressure shaping means

C164S155100

Reexamination Certificate

active

07004224

ABSTRACT:
A diecasting machine capable of realizing highly precise injection of molten metal at high-speed without using an accumulator is provided, which includes: an injection cylinder for loading molten metal into a mold cavity by injection; a single two-way hydraulic pump driven by a driving motor for supplying hydraulic fluid to the injection cylinder in two directions; a hydraulic circuit for driving the injection cylinder by controlling supply of hydraulic fluid from the two-way hydraulic pump to the injection cylinder and discharge of hydraulic fluid from the injection cylinder which proceeds in accordance with movement of a piston of the injection cylinder; and a hydraulic controller for controlling rotational speed of the driving motor associated with the two-way hydraulic pump in injection/loading the molten metal and controlling torque of the driving motor in dwelling.

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patent: 5443782 (1995-08-01), Nakamura et al.
patent: 6502620 (2003-01-01), Jacobsen et al.
patent: 6629558 (2003-10-01), Tsuji
patent: 56-159136 (1981-12-01), None
patent: 10-202354 (1998-08-01), None
patent: 2000-33472 (2000-02-01), None

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