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Size Fluctuation: Polyethylene 800E Extrusion

Author	Topic: Size Fluctuation: Polyethylene 800E Extrusion
mevitts Junior Member	posted 10-01-2002 09:00 AM When trying to extrude Poly, in an extruder we normally use for Marlex, our psi will not build up. It bounces between 200 - 500 psi, motor load drops after a few minutes of running from 26 to 16. We pulled the screw after the first setup last week, and in the area of zone 3, the screw was the color of carbon paper. There was no blockage in the feed throat. We have had the same problem in the past,but had no problems in our last attempt, about a month ago. Any suggestions? IP: Logged
viper Junior Member	posted 10-17-2002 10:09 PM what kind of poly, what kind of screw, what size extruder, and what heat profile. we are not mind readers IP: Logged

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