Method of controlling the mold filling process in a plastics inj

Details Method of controlling the mold filling process in a plastics inj Method of controlling the mold filling process in a plastics inj

1986-03-05

1988-07-19

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

2642972, 2643281, B29C 4576

Patent

active

047583894

ABSTRACT:
Described is a method of controlling the mold filling process of a plastics injection molding wherein, for the purposes of avoiding fluctuations in the mass of the moldings, due to material not being of a uniform quality, the change-over point between the filling phase and the back-pressure phase is shifted by a predetermined value in dependence on the injection work which is detected during the filling phase.

REFERENCES:
patent: 3721512 (1973-03-01), Ma et al.
patent: 4066725 (1978-01-01), Boettner
patent: 4146601 (1979-03-01), Bishop
patent: 4579515 (1986-04-01), Kawaguchi et al.

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