Articles

economics

Plastics Index Shows Supply Chain Improvement Despite Production Slowdown

Future expectations reach 2024 high on the heels of the recent election.

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Bulk, Solid and Melt Density: How to Calculate These Values and Why They Matter — Part 1 of 2

How much resin is contained within a bucket, gaylord or hopper? That depends on the bulk density — a figure you need to learn how to calculate due to its impact on everything from storage and conveying to drying and molding.

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AMRs and Cobots Target Inspection, Palletizing and Movement of Finished Goods

The same year it marked its 70th year in ´óÏó´«Ã½, custom injection molder Hoffer Plastics (South Elgin, Illinois) — which routinely reinvests more than 10% of its annual revenue back into new equipment — prioritized automation in that CapEx with some stunning results.

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Materials

Applying AI to Manage, Synchronize Material Data and Power Material Development

Global masterbatch and compound producer Kafrit Group worked with MaterialsZone to apply AI to its raw materials management and product development.

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Thermoforming

Sheet Extrusion, Thermoforming Tips for PLA/aPHA Blends

Biopolymers like PLA and PHA are able to meet sustainability goals while also delivering the performance attributes needed in rigid food packaging. Here’s what testing has shown.    

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sustainability

An Uphill Journey

Proper end-of-life outcomes for plastics are possible, if we’re willing to put in the work.

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Automotive

Injection Molded Enclosures Plug into Potential Electric Vehicle Battery Applications

In partnership with material suppliers, Engel is proving out injection molded thermoplastic-based concepts for electric vehicle battery housings, utilizing production tools and dedicated machines at its large press factory in St. Valentin, Austria.

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How to Select the Right Cooling Stack for Sheet

First, remember there is no universal cooling-roll stack. And be sure to take into account the specific heat of the polymer you are processing.  

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Testing

Using a Melt Flow Indexer to Test Your Pressure Transducer

The MFI tester enables collection of meaningful pressure data in transducers in a relatively short time, providing realistic measures of the response time of a pressure transducer. This information is critical in the interpretation of pressure data measured in an extrusion process.  

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Hot Runners

Optimizing Pack & Hold Times for Hot-Runner & Valve-Gated Molds

Using scientific procedures will help you put an end to all that time-consuming trial and error. Part 1 of 2.

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Extrusion

New Screw Boosts Mixing, Enhances Polymer Properties

Device mixes at the ‘molecular level,’ inventor says, to boost mechanicals and in some cases make pre-drying redundant.

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Multiscrew

How to Configure Your Twin-Screw Barrel Layout

In twin-screw compounding, most engineers recognize the benefits of being able to configure screw elements. Here’s what you need to know about sequencing barrel sections.  

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Blending & Dosing