Know-How
Extrusion: Reducing Energy, Part II: ‘Adiabatic’ Extrusion
The term adiabatic extrusion was very popular in the ’60s and ’70s, but has seemingly disappeared from the processing terminology of today.
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Injection Molding: Processors: Teach Part Designers The Golden Rule
Make sure the designers you work with understand that there are limits to what processing can do.
Read MoreTooling: Setting Up Shop—Part II of III
Many repair shops in molding facilities are too small, poorly lit, and inefficiently designed.
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Extrusion: Run Your Chevy Volt with Extruder Energy Savings—Part I
The electricity saved on a large extrusion line could power a number of Chevrolet Volts.
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Injection Molding: Why & How to Do Gate-Seal Experiments
Part of optimizing any molding process is determining the second-stage injection, or pack and hold, parameters.
Read MoreExtrusion: Start Up and Shut Down Properly
A key goal during startup and shutdown of the extruder is to prevent degradation of the polymer left in the extruder and downstream components such as screen changers, adapters, and dies.
Read MoreInjection Molding: Answers to Bozzelli's Drying Quiz
Three questions about drying plastics that everyone should know how to answer.
Read MoreInjection Molding: You Must Dry Hygroscopic Resins
The reason you dry certain plastics is to get the moisture out. But why does the moisture have to be taken out before processing?
Read MoreInjection Molding: Time Now for a Safety Review
For months many of us have been consumed with the Gulf oil pipeline blowout.
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Tooling: Setting Up a Mold Shop: Part I
I had a toolmaker once tell me he used to slam his hand in his car door before work every morning just to get him in the right frame of mind to work in his shop.
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