processing tips

best practices

How to Duplicate a Process From Press to Press

To adopt the right approach you must distinguish between machine and plastic parameters.

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Testing

The Need for Generalists: Part 4

Solving problems generally requires distinguishing good samples from bad ones. But that can become clumsy when one person runs the test while another analyzes the data.

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Optimize Feeding to Get More Money in Twin-Screw Compounding

Follow these practical examples to improve the feeding efficiency and productivity of your process.

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Elastomers

Use Molding Simulation To Avoid Surface-Finish Defects

It’s not just for successful mold filling and cooling. Simulation can help predict and overcome cosmetic defects in molded parts.

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processing tips

How to Pick, Remove, and Replace a Nozzle Tip

This small component can cause big problems. Here’s my procedure for picking and replacing yours.

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best practices

The Need for Generalists: Part 3

In failure analysis, there is a tendency to gravitate to a few common test protocols. But this approach can result in a mismatch of techniques to the problem.

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15 Things to Know About Servo-Driven Injection Machines

Drive technology for injection molding machines has been continuously evolving, and servo motors have become widely used in a variety of roles. Here’s what molders need to know about today’s servo drives in terms of cost, performance, maintenance, and training.

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How to Collect and Interpret Process Data in Extrusion: Part 2

In this second of three installments, the focus is on the crucial element of melt temperature.

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processing tips

What You Need to Know About Locating Rings: Part 1

Selecting the right locating ring and putting it to good use takes a lot of thought.

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Additives

Extruding with Fillers

You can use the reference point from processing unfilled polymer to determine whether you can run filled resin on your current system.

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