Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Restrictor Ring

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_9986

n A ring-shaped part protruding from the torpedo surface within the cylinder of a plunger-type injection machine. It was claimed that the ring provided higher injection pressure on the melt, higher rate of filling the cavities, and improved weld strength.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA