Laminar flow injection molding apparatus and laminar flow inject

Details Laminar flow injection molding apparatus and laminar flow inject Laminar flow injection molding apparatus and laminar flow inject

1993-03-04

1994-11-08

Lin, Kuang Y.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164113, 1641551, 164312, B22D 1732, B22D 1714

Patent

active

053618262

ABSTRACT:
A laminar flow injection molding apparatus and a laminar flow injection molding method capable of directly judging flow mode of molten metal flowing into a metal mold, either laminar flow mode or turbulent flow mode. An injection molding apparatus includes metal molds in which a runner portion, a cavity, and a gas vent passage are formed in communication with a casting sleeve. Molten metal detection members are provided in confrontation with at least one of the runner portion, the cavity and the gas vent passage. In a single injecting operation, molten metal detection signal is generated each time the molten metal is brought into contact with the detection member. The molten metal detection member is connected to a counter circuit where numbers of the detection signals are stored as a count value. A judgment circuit to which a preset value is inputted is electrically connected to the counter circuit so as to compare the count value with the preset value. Since flow mode of the molten metal can be directly detected, quality of the casted product can be determined even during the casting process, to thereby enhance productivity.

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