April 2025 Issue
April 2025
Digital Edition
Features
Featured articles from the April 2025 issue of Plastics Technology
Injection Molding Stock-Shape Parts in High-Temperature Materials
Patented technology is described as a hybrid that uses a specialized tool, a standard injection molding machine and off-the-shelf components to replace compression molding and extrusion for large stock shapes.
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Use a Process Assessment to Determine the Benefits of Screw-Design Modification
This type of analysis analysis will provide the converter with a clear picture of whether changes to the screw could provide economic gains through increased rate, yield, and quality.
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Screw Bounce — What Causes It and Why You Should Care
There are a lot of theories about screw bounce in injection molding it, but what’s the actual cause? Through a series of experiments, and some good old-fashioned math, the author found out.
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April 2025: Mixed Bag for Prices of Volume Resins
The end of the first quarter marked higher prices for polyolefins and relatively flat pricing for nearly all other resins.
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Navigating Medical Plastics Trends in 2025
The past few years have tested the resilience of the health care supply chain, especially when it comes to medical plastics.
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Automated Die, Feedblock System Improves Efficiencies at Cast Film Processor
Reifenhäuser's PAM automation systems helps Bogucki Folie reduce waste at startup while slashing time between changeovers.
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The Middle Way, Dissolution Recycling Technologies Leave the Polymer Intact
Alternative approaches can produce high yield and high purity with reduced energy demand.
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Polymer Showdown — PPO vs. PA66: May the Best Material Win
Second in a series, an expert from plastics engineering consultancy The Madison Group pits leading thermoplastics against each other to see how they differ in processing characteristics, chemical resistance, thermal and mechanical performance, and more.
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Plastics Processing Index Registers Expansion With February Reading of 50.9
Improvements across components drive steady climb out of contraction for the first time since June 2022.
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New System Utilizes EMF Technology to Measure Sheet Thickness, Temperature
An altogether different approach to in-line measurement is said to provide direct thickness measurement, is impervious to material density changes, installs quickly and does so without radiation.
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Overcoming Drying Hopper Ambient Air Leaks
Consider using a compressed-air-operated discharge valve. This provides a positive seal when it closes and ensures that no wet ambient air seeps into the drying hopper.
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Extrusion: Live and In Person
Log out from your computer and make plans to join us in Boston this May for Extrusion 2025.
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