Articles

How to Achieve Simulation Success, Part 2: Material Characterization

Depending on whether or not your chosen material is in the simulation database — and sometimes even if it is — analysts will have some important choices to make and factors to be aware of. Learn them here.

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economics

Index Still Searching for Growth

But the good news is that June’s results were nearly a point above May’s.   

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processing tips

Got Streaks or Black Specs? Here’s How to Find and Fix Them

Determining the source of streaking or contamination in your molded parts is a critical step in perfecting your purging procedures ultimately saving you time and money.

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Captive Molder Beefs Up Auxiliaries to Boost Quality, Consistency

SeeScan adds conveying, drying, feeding and chilling technologies to improve quality — and enhance employee safety — in production of its underground/underwater inspection systems.  

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Testing

Tracing the History of Polymeric Materials -- Part 30: Polyurethane

In the world of polymers, polyurethane chemistry is probably the most versatile. This a resulted in a wide range of products made from these materials and given the industry the flexibility to respond to the progressive march of regulatory concerns.  

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Evolving Opportunities for Ambitious Plastics Recycler

St. Joseph Plastics grew from a simple grinding operation and now pursues growing markets in recycled PP, food-grade recycled materials, and customized post-industrial and post-consumer compounds.

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sustainability

How to Optimize Injection Molding of PHA and PHA/PLA Blends

Here are processing guidelines aimed at both getting the PHA resin into the process without degrading it, and reducing residence time at melt temperatures.

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editorial

Bidding So Long — But Not Goodbye — To Plastics Icon Matt Naitove

After 51 years of contributing content, plastics industry stalwart will take a step back.

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Custom Injection Molder Plugs into All Electric Machines

Formerly a showroom for early-aughts-era Van Dorn hydraulics, the newest additions to Drummond Industries’ transforming fleet are all-electric Niigata injection molding machines.

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economics

Plastics Processing Contraction Continues

Contraction dominated the GBI index for overall plastics processing activity and almost all components, collectively suggesting a slowdown.

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Extrusion

Troubleshooting Screw and Barrel Wear in Extrusion

Extruder screws and barrels will wear over time. If you are seeing a  reduction in specific rate and higher discharge temperatures, wear is the likely culprit.   

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dies

Is Your Die Flow Changing Despite Following All the Correct Formulas?

Maybe the problem is that you're starting up with a dry die. Here are tips to solve this issue.  

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