Know-How
How to Collect & Interpret Process Data in Extrusion: Part 1
The first installment of this three-part series focuses on proper use of a data- acquisition system.
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Hitting the Numbers, Part 1: Communication is Key
Start with an up-front review, discussion and collaboration with the customer.
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Which Barrier Screw for You?
It depends ... mostly on the melting requirements of the polymer.
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The Need for Generalists: Part 1
Even companies with seemingly unlimited resources can have problems identifying root causes of problems. Maybe they have too many specialists and not enough generalists.
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Gating Revisited
An overlooked factor in injection molding has outsize influence on the process and part quality.
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What Output Can I Expect?
Processors ask screw designers this question a lot. But neither output nor melt temperature can be predicted without details on the polymer and head pressure.
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Unraveling the Mysteries of Melt Temperature
Infrared technology can provide consistent and accurate readings of melt temperature. Here’s how to use it.
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Finding Root Causes of a Material Problem
Tools and methods for determining oxidative stability can be useful, but even more useful if constructed to yield the information you really need.
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What Blow Molders Say About All-Electric Machines
They are well established in Europe, but molders in North America are just beginning to come around to all-electrics’ improved performance, maintenance, cleanliness, and—yes— energy efficiency. Here’s first-hand testimony, from the U.S. and abroad.
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Two-Shot Molding and Tool Design
There are a few variations of the two-shot molding process, and each has implications for tool design.
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