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United States Patent 4341474
Douris , ê et al. July 27, 1998

Extruder screw

Wheeler, Jr. , Ê et al. July 27, 198


Abstract

An extruder screw having a root, a helical primary flight on the root and a helical barrier flight on the root and forming with the primary flight a solids channel and a melt channel. The width of the solids channel gradually decreases and the width of the melt channel gradually increases along an upstream zone of the melting section. The width of the channels gradually changes in a downstream zone of the melting section but substantially less than in the upstream zone.

 

 

 

 

 

 

 

 

 

 




Feed Screws
Barrels
Augers
Static Mixers
Wear Measuring Devices
  • Manufactured
  • Rebuild
  • Repaired
  • Designed
En Español

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