Home > Terms > English, UK (UE) > Valve gating
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.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Manufacturing
- Category: Plastic injection molding
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