Method and apparatus for controlling injection step of injection

Details Method and apparatus for controlling injection step of injection Method and apparatus for controlling injection step of injection

1986-08-21

1988-04-05

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Positioning of a mold part to form a cavity or controlling...

264 401, 2643281, 425149, 425214, 425542, 425555, B29C 4503

Patent

active

047357606

ABSTRACT:
In an injection molding machine which injects molten metal into a metal mold cavity by an injection step and a succeeding pressure holding step, the injection step is controlled by the steps of filling the molten resin into the metal mold cavity at a high speed during the filling step; switching the injection operation from the filling step to the pressure holding step; concurrently operating braking means for applying a braking force to the plunger of the injection molding machine for stopping the plunger; and locking the braking means for continuously applying a constant force to the plunger until a gate seal of the metal mold cavity is completed.

REFERENCES:
patent: 3920367 (1975-11-01), Ma et al.
patent: 3932083 (1976-01-01), Boettner
patent: 4060362 (1977-11-01), Wilson, III
patent: 4407649 (1983-10-01), Saito

Affiliated with

Also associated with

Rating

Method and apparatus for controlling injection step of injection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling injection step of injection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling injection step of injection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2232237