Method of and system for operating squeeze plunger in die cast m

Details Method of and system for operating squeeze plunger in die cast m Method of and system for operating squeeze plunger in die cast m

1989-01-25

1990-06-12

Seidel, Richard K.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164120, 164154, B22D 1802

Patent

active

049324586

ABSTRACT:
A method of and a system for operating a squeeze plunger in a die cast machine. When the fill-up of molten metal in a cavity is completed by an injection plunger, the moving speed of the injection plunger is rapidly decreased. When the speed at this time becomes lower than a preset value, a preset delay time is measured. After a lapse of this delay time, the squeeze plunger is operated to press a molding material in the cavity, so that plastic flows are caused in the molding material.

REFERENCES:
patent: 4380261 (1983-04-01), Suzuki et al.

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