Articles

System Startup

If a problem crops up when first starting up a new system, you can usually solve it by answering one or more of the following questions:•Is the station turned on?

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Vacuum Pumps Components

Vacuum pumps are the heart of any resin conveying system – providing the vacuum to pull resin through your system from each source to each destination.

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Polyethylene Continues Up!

The Polyethylene market continues to be extremely volatile and looking at another $0.11 price increase for April.  Feedstock prices are very erratic with large price fluctuations on a daily basis.

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Packaging

Recycled PET Pricing Is Unsettled

WEB EXCLUSIVE: On the East Coast, RPET prices continue to climb, although somewhat slower than they have been.

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A Legacy Built on Automation

Automated molding cell pays off big for Florida processor.

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Energy-Saving Hydraulic Press Varies Pump Speed and Volume

Novel press line debuts at Negri Bossi open house.

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Tooling Know-How

Know the Three F’s Of Profile Tooling Design

Designing an extrusion profile and ultimately the die design and sizing equipment cannot be executed successfully without a full understanding of the customer’s quality expectations or specifications.

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Why Non-Return Valves Leak

We all recognize that the non-return valve is a problem. The question is where is the research to figure out how to correct this so we have a better shot at making more consistent parts

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Extrusion

Solving Feed-Related Surging

Understanding the causes of surging can help troubleshoot and correct it.

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dies

Best Practices for Cleaning a Flat Die and Technologies for Molding Hollow Parts

Learn step-by-step procedures to thoroughly clean a flat die and technologies for injection molding of hollow parts. 

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polyolefins

Prices Trending Upward for Commodity & Engineering Resins

Entering this year’s second quarter, prices of four commodity thermoplastics were largely flat but poised to move upward, driven by higher feedstock costs.

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Additives

Time for a New Look at Liquid Color?

Liquid colorants are growing more popular with processors looking for a competitive advantage. Though perhaps not for everyone, they can offer more economical letdown ratios and work especially well with heat-sensitive materials.

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