Extrusion
Internal Air Pressure vs. Vacuum Sizing for Ovality Issues?
To achieve more consistent ovality in an application like medical tubing extrusion, consider vacuum sizing.
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Why—and How—to Baseline Your Extruder
If you don’t baseline your extruder, then how are you going to set realistic expectations for its performance? Here's how to get going.
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Physically Foamed HIPS Is New Factor in Rigid Packaging
Relief for escalating costs of packaging materials and an opportunity to address sustainability goals are two factors that have helped attract global attention to a new physical foaming technology for HIPS packaging.
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To Troubleshoot Profile Extrusion, First Get to Know All the Variables
It requires patience, logical thinking, and a methodical approach to assess each unique problem and solve the problem in a timely fashion.
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New Barrel Heater/Cooler Saves ‘Juice' to Run an Extruder
New, patent-pending design is said to reduce both radiant and convection heat losses.
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Where Does Shear Heating Occur? Here’s How to Find Out
One of the least understood yet most important concepts is viscous dissipation, which is the shearing or stretching of the polymer between the rotating screw and stationary barrel, causing heat to develop in the material.
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'Green'...And Microwaveable Too
New technology from Teknor Apex Co., Pawtucket, R.I., eliminates a property tradeoff that could allow polylactic acid (PLA) to supplant polystyrene and polypropylene for microwavable frozen-food trays, lids for hot beverage cups, and carry-out containers.
Read MoreReport Details Opportunities for Battery-Film Processors
If you make battery separator films you might be interested in a report released recently by Eldib Engineering & Research, Berkeley Heights, N.J.
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