Timothy Womer

Timothy Womer Founder

Injection Molding Virgin vs. Regrind

Most processing operations generate regrind. Therefore, it is necessary to be able to reprocess the regrind back into the part.

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Some Helpful Hints on Grooved-Feed Extruders

There are a few things that are different between these and their smooth-bore cousins that processors should know.

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A Tale of Screw Wear

And it came from an unexpected source: an excessive overhung load.

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Screws and Screen Changers

There are precautions that need to be taken when adding a screen changer.

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Engraved Rolls

On engraved or textured rolls, ensure the outer shell is made from a seamless tube.

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sustainability

Screw Speed vs. Recovery Time

Many times the screw speed is not setup to operate at its most effective operation.

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Feedthroat Leakage Check

Simple tips to solve this problem.

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Proper Shut-down and Start-up Methods

You might have your own approach, but by following these procedures you'll likely get the best results.

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What Causes Splay?

Primarily, moisture and shear.

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Auditing Your Extruder

 From time to time it is necessary to do a complete audit on the condition of an extruder to make sure that it is operating in top condition for maximum effectiveness and efficiency.

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Solving Poor Solids Conveying

Molders quite often call me and say their screw is “windmilling” or “isn’t picking up the material.” This phenomena is due to poor solids conveying.

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best practices

Why—and How—to Baseline Your Extruder

If you don’t baseline your extruder, then how are you going to set realistic expectations for its performance? Here's how to get going.

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