Injection Molding

Get Custom Hot Halves in a Hurry

If you need a complete bolt-on hot-runner system on short notice, and off-the-shelf systems come up short in design flexibility, there's a solution available from Husky Injection Molding Systems of Milton, Vt.

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PP Engineering Alloys Branch Out Into Molding, Extrusion, Thermoforming

The Hivalloy line of in-reactor grafted alloys of polypropylene and amorphous resins from Montell Polyolefins, Wilmington, Del., is expanding its market reach with new grades, new developmental alloy families, and dramatic new applications. Besides injection molding, developing applications now include thermoformed sheet and even barrier packaging films.

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What's Your Production Efficiency?

Follow these simple tips to develop reports that analyze plant efficiency in a more useful way--one that helps you quickly pinpoint production problems.

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Photo-Graftable UV Absorber Gets the Yellow Out

Sanduvor PR-25, a uv absorber based on new photo-reactive chemistry, was aimed primarily at coatings when it was first launched a couple of years ago. Since then it has made headway in clear plastics, including flexible PVC, polycarbonate, PET, and other engineering thermoplastics.

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Plastic Beer Bottles Are No Longer Just a Dream

Commercial success of two major foreign beer brands packaged in plastic bottles looks like the first wave in what could soon be a flood of plastic container development here and abroad. As shown in the table, at least nine plastic beer-bottle programs are commercially under way or in development.

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Why Molders Love All-Electric Machines

All-electric injection presses carry higher price tags, but molders who use them don't seem to care. They say price pales in comparison to the valuable molding advantages they get with electric machines. These first-hand accounts tell why the 'go-electric' movement is spreading.

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Melt Oscillation Molds Better Parts

An updated Scorim process oscillates the melt back and forth inside the mold with more flexibility and fewer machinery modifications. Here's a look at how the "new" Scorim can enhance both part strength and cosmetics.

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What You Can Learn from Shot Profiles

Want to know more about your molding process? Need a better way to diagnose problems? There's no better tool than the electronic 'signature' provided by process-monitoring curves of cavity pressure and other variables. Here's a sampling of seven real-world molding issues as revealed through shot profiles.

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Microcellular Foam Promises Big Savings in Injection Molding

Automotive parts supplier Injectronics Inc. in Clinton, Mass., will soon be the first injection molder to use a new microcellular foam technology developed by Trexel Inc., Woburn, Mass.

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PET Processing

Build More Flexibility Into Your PET Preform Molds

The tradition of building molds dedicated to one PET preform design is being challenged by modular tooling with interchangeable parts that can makedifferent preforms from one mold set. Such flexibility offers enormous costsavings--if it is designed into the tool at the start.

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Blending & Dosing
Process Cooling