Tag Archives: Extrusion

Unusual ‘Extrusion’ Molding Is Commercial

By Jan H. Schut Low-shear, low pressure “extrusion” molding machines developed by Extrude to Fill LLC, Loveland, CO (www.extrudetofill.com), a 2014 start-up, have been commercially molding tiny acoustic parts since 2015. Extrude to Fill’s process melts plastic without motion using … Continue reading

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Trolling for New Technology: ANTEC 2016

By Jan H. Schut New technologies at ANTEC 2016, the Society of Plastics Engineers Annual Technical Conference, held this year in Indianapolis, IN May 23-25 (www.4spe.org), include an array of unusual functional structures created in plastics and composites by means … Continue reading

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Advances in Air Cooling for Extruder Barrels

Here is a look at three unusual integrations of extruder barrel heaters with hot air removal to save substantially on energy. Continue reading

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Is the S-Truder Ready for the Real World?

By Jan H. Schut It’s hard for unusual extruders to graduate from universities into production. So a commercial trial for Germany’s “S-Truder,” developed at the University of Duisburg-Essen (www.uni-due.de),would be exciting after over ten years and four different prototypes. S … Continue reading

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Neat New Stuff from the First Eurotec

By Jan H. Schut The SPE’s first Eurotec conference, November 14-15 in Barcelona, Spain, is a European version of ANTEC, the SPE’s perennial conference highlighting new technology. Publications for the inaugural Eurotec didn’t have to be absolutely new the way … Continue reading

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Developmental Extrusion Process ‘Spins’ Powder

By Jan H. Schut When you grind plastic cryogenically into powder, it has microscopic sharp edges and angles, which lower bulk density and processability. Cryogenic grinding is also expensive and energy consuming. Theoretically if you could extrude micropellets five or … Continue reading

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Ultrasonic Processing Isn’t Just Interesting, It’s Finally Commercial

By Jan H. Schut Ultrasonics, previously limited in plastic’s processing to welding, have been under development for a decade as researchers tried to use high frequency sound waves to enhance injection molding and extrusion. Basic research in ultrasonics isn’t cheap, … Continue reading

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