Articles
What’s the Deal With High-Speed Extruders?
If we are talking about extruder screw speed, how about 1800 rpm? That’s how fast some extruders are running today.
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Understanding Polymer Flow: Interpreting the Viscosity Curve
Take the time to do the viscosity curve on new molds. You will learn more in that hour than many learn in years about the process for this tool.
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Blow Molding at NPE: Pushing the Envelope in Speed, Flexibility, Energy Savings
New models of blow molding machines at the show were dominated by wheel machines and stretch-blow systems.
Read MoreVent Bleed
Poor screw design is usually to blame for vent bleed on a two-stage vented extruder. But it may not be the culprit.
Read MoreAutomotive drives plastics processing
Fifteen million units is my personal benchmark for annual U.S. auto sales.
Read MoreScrew Rebuilding
Screw flight diameter clearance has a significant impact on the performance of your screws.
Read MoreSolving Splay
Moisture and shear are the two primary causes of splay on an injection molded part.
Read MorePoor Solids Conveying?
Molders quite often call me and say their screw is “windmilling” or isn’t picking up the material.
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High-Flow Nylon Carries the Load in New Fork-Lift Truck
WEB EXCLUSIVE: New I-ton hand pallet truck (HPT) from Lifter S.r.l. of Italy (U.S. office in Marietta, Ga.) is the first pallet truck in the world made of nonmetallic material.
Read MoreAnother Big Backer for Biobased PEF Bottles
WEB EXCLUSIVE: Avantium in the Netherlands has signed its second major partnership for using its new catalytic process to convert plant sugars into furanic precursors for a new polyester bottle resin.
Read MoreChevron Phillips Announces PE Plant Location
WEB EXCLUSIVE: Chevron Phillips Chemical Co., The Woodlands, Tex., has chosen a site near its Sweeny facility in Old Ocean, Tex., for two new polyethylene plants to accompany a planned 3.3-billion-lb/yr ethane cracker at Cedar Bayou in Baytown, Tex.
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Foaming Developments Aplenty in Extrusion
At NPE2012, Macro Engineering and Technology, Mississauga, Ont., launched new technology to extrude foamed films in what it describes as an “environmentally friendly process” that uses inert gas as the foaming agent.
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