PET Processing - Extrusion

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Published: 1/1/2002

How to Fix Vent-Flow Problems
Putting one or two vents between the feed throat and die is a good way to remove moisture, trapped air, and other volatiles from melted plastic as it moves through an extruder.

Published: 9/1/2001

Extrusion (K 2001 Preview)
Probably the most intriguing news in extrusion at K 2001 will be a novel way to extrude clear film that differs from standard blown and cast methods.

Published: 6/1/2001

Foamed PET Sheet Tackles New Markets
Perpetually in its infancy, PET foam sheet has been a hard sell for packaging producers over nearly a decade. It found successful niches in thermoformed ovenable bakery trays, meat trays, and reheatable dinner trays for home delivery to disabl...

Published: 8/1/1999

PET Recycling Line Crystallizes While Chopping
A new method of recycling PET into pellets or directly into extruded sheet is said to save time and energy by combining crystallizing and drying with size reduction in one piece of equipment.

Published: 1/1/1999

Where's the extruder?" was the comment often heard about the most unusual extrusion exhibit at K'98, a screwless, cone-shaped device that can extrude two or more melt streams.