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LLDPE Lensing

Modified on Sunday, 01 February 2015 04:40 PM by mpieler Categorized as Extrusion Hints
Vol 17 #1, Feb. 1990 - LLDPE Lensing

When running granular LLDPE and color concentrate on larger diameter machines, lensing or voids frequently occur because some of the fine particles tend to stick to the hot root diameter in the feed section of the screw.

Using screw cooling, but only to the end of the feed section, will prevent sticking, air entrapment and lensing.

See also:
  • Screw cooling

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