PT ZONE: Sheet Extrusion

EXTRUSION: Feedblock Tuning Insert Lets Processors Keep Running
They are also said to allow for greater precision in layer-to-layer thickness control. More (+)
Octal to Start PET Sheet Extrusion in Ohio
APET sheet to be made exclusively from sheet flake. More (+)


MOST RECENT CONTENT: Sheet Extrusion

EXTRUSION: Another Way to Extrude PET Without Drying

A planetary-roller section allows efficient degassing.

A Better Way to Balance Die Flow

Use temperature adjustments before making any mechanical tweaks.

Compounding PLA on Twin-Screws: What Testing Reveals

Twin-screw extrusion is the preferred method for compounding PLA and other biopolymers. But processing PLA is complicated because it’s sensitive to heat and shear. It’s also prone to hydrolytic degradation if moisture is present in molten PLA. Here’s what one machine builder’s trials revealed.

Use Your Gauge to Solve Processing Issues Upstream

Gauging systems have an often-overlooked but equally important role beyond measuring web thickness: They can be used as a diagnostic tool to troubleshoot the process. Here's how.

Top 10 Extrusion Items in 2013

Here's a quick rundown of things that caught my eye--and likely the attention of extrusion processors, in 2013.

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OVERVIEW:
Sheet Extrusion

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Sheet is distinguished from film by its thickness: anything over 0.25-mm is considered sheet. The process closely resembles cast film extrusion. Thinner sheet is typical thermoformed into trays, clam shells, cups or bowls, whereas thick sheet may be used for signage, refrigerator liners and truck bed liners. Common sheet extrusion materials include PET, high-density polyethylene, polystyrene and ABS. Sheet can be produced in either single or multi-layer formats.


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Is dosing good enough? Do I need a Blender? Let Maguire walk you through the basics, process integration and more.

 

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Watch video, download datasheets and more in the Plastics Conveying Knowledge Center.

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Novatec shares their knowledge of dryers and drying techniques.

Product Announcements

EXTRUSION: Feedblock Tuning Insert Lets Processors Keep Running
Extrusion Dies Industries LLC 3/28/2014
EXTRUSION: Another Way to Extrude PET Without Drying
Battenfeld-Cincinnati 3/24/2014
Extrusion: Gauge for Battery-Separator Film
NDC Infrared Engineering Inc. 12/31/2013
EXTRUSION: Higher-Pressure Gas Injection For Microcellular Foams
4/29/2013
EXTRUSION: New Cast Film & Sheet Lines
SML Extrusion Technology Inc. 2/26/2013

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