Exploring the: Pipe, Profile & Tubing Extrusion Zone



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EXTRUSION: Why Barrier Screws & Rigid PVC Don’t Always Mix
RPVC’s somewhat unusual melting mechanism makes it unsuited to traditional barrier type designs.
Columns Published: 8/25/2014
EXTRUSION: Processing Rigid PVC? Know Your Rheology
Before choosing and sizing extruders for running rigid vinyl, it is wise to bone up on the viscosity behavior of the material.
Columns Published: 7/28/2014
EXTRUSION: Effect of the Screw Flight On Melt Temperature, Energy Use
So-called rules of thumb regarding the design of flight clearance and width do not consider the temperature effect, both from the point of view of melt temperature and energy efficiency.
Columns Published: 4/23/2014
Telltale Temperatures
Here's how to get a 'feel' for a screw design without actually seeing it. And how to use this information.
Columns Published: 12/29/2013
What About Melt Strength?
All extrusion processes depend to some degree on the melt strength of the polymer, and this property is generally a no-show on data sheets.
Columns Published: 5/28/2013
Get Smarter on Extruder Sizes
Processors tend to recommend a much larger extruder than what’s really necessary for the job and the capabilities of the downstream equipment.
Columns Published: 6/26/2012
Practical Processor
Your processing questions answered.
Columns Published: 7/27/2011
Dead Screw Talking
There's a lot you can learn by conducting a post-mortum examination of your screw.
Columns Published: 6/27/2011
How To Size & Calibrate Profile Parts
Doing it right is critical to maintaining profile dimensions.
Columns Published: 5/31/2011
Know the Three F’s Of Profile Tooling Design
Designing an extrusion profile and ultimately the die design and sizing equipment cannot be executed successfully without a full understanding of the customer’s quality expectations or specifications.
Columns Published: 3/26/2011

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