April 2011 Issue
March 2011
Features
Featured articles from the latest issue of Plastics Technology
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.
Read MoreKnow 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.
Read MoreSolving Feed-Related Surging
Understanding the causes of surging can help troubleshoot and correct it.
Read MoreWhat to Look for in a Modular, Reconfigurable Conveyor System
As conveyors have become a necessity on the plant floor, conveyor manufacturers have attempted to respond to end-users’ needs for flexibility by creating truly modular, reconfigurable systems.
Read MorePrices Up for Nylons, Polyesters, Acetals & More
WEB EXCLUSIVE: This month, prices are due to rise for engineering thermoplastics, composite thermosets, and UHMW-PE:•DSM Engineering Plastics said it would hike nylon 6 resins early this month by 12¢/lb, following a similar move by BASF in March.
Read MoreEnergy-Saving Hydraulic Press Varies Pump Speed and Volume
Novel press line debuts at Negri Bossi open house.
Read MoreTime 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.
Read MorePrices 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.
Read MoreWhy 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
Read MoreRecycled PET Pricing Is Unsettled
WEB EXCLUSIVE: On the East Coast, RPET prices continue to climb, although somewhat slower than they have been.
Read MoreNanolayers Come to Tubing
Nanolayer technology, an active area of development in films, is also making its way to tubing extrusion.
Read MoreHeinz Ketchup Converts to Biobased Bottle
The sauce is red, but the new bottle is green—i.e., based partly on renewable plant-based feedstocks.
Read MoreHow to Manage Multiple Heads in Accumulator Blow Molding
Don’t believe the myth that you can’t successfully run an accumulator-head machine with more than one head.
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