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Glossary Plastic Injection Molding / Term

Valve Gating

A type of gate where a pin is held in the gate or channel by spring tension. As the injection stroke moves forward, this gate compresses the plastic in the runner. When this pressure build-up is sufficient to overcome the spring tension, the pin is then pushed back (pulled) and the fast decompression of the melt fills the cavity at extremely high speed.

Permanent link Valve Gating - Creation date 2020-05-04


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