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Screw Cleaning 2

Modified on Sunday, 01 February 2015 11:32 PM by mpieler Categorized as Extrusion Hints
Screw cleaning 2
Vol. 23 #2, Oct. 1996

Typically, if an extruder is purged with a fractional HDPE (.35 MI blowmolding grade) the screw will purge itself, approximately 90 95% clean.

Then as the screw is pushed out the remaining HDPE can be cleaned from the root of the screw with a wire brush, then Stearic Acid can be sprinkled onto the root and polished with copper gauze.

See also:
  • Bridge breaker
  • Easy screw disassembly
  • Screw cleaning 1

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