Sheet Extrusion
What to See at NPE 2006: Extrusion
The new factor in extrusion machinery at this NPE is the influx of Asian suppliers.
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A Relic of Plastics’ Rough and Ready Days
In 1955, Allied Resins and Allied Resinous Products were prosperous, creative compounding and extrusion operations, respectively, situated across the street from each other in Conneaut, Ohio.
Read More50 Ideas That Changed Plastics
Very few readers of this issue can remember, or even imagine, what it was like when an injection molding machine did not have a screw, but only a smooth-bore plunger.
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Fix Thickness Variations in Extruded Sheet
Non-uniform thickness in extruded sheet is a serious problem.
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K 2004 Extrusion: Outputs Rise, Downstream Units Gain Flexibility
The show was packed with new equipment for pipe and profile, including extruders redesigned for higher outputs and/or lower cost, plus new ways to adjust die and calibrator diameters or switch dies and calibrators more quickly.
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Shhh ... Can You Hear the New Extruder Motors?
Silent, space-saving, energy-efficient, and high-torque, a new generation of ring-shaped motors is gaining a foothold in extrusion. A couple of hundred are already in use. Though most machine builders are reacting cautiously, adventurous processors are using them happily.
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K 2004 News Preview: Extrusion
At K 2004, at least a half-dozen European machine builders will show new direct-drive extruders running gearless—or nearly gearless—drives with substantially higher rpm and output rates than conventional extruders of the same size.
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PPS Role Shapes Up in Thermoforming
Thermoformers may find new opportunities in higher-performance applications with the arrival of thin-gauge PPS sheet from Penn Fibre Plastics (PFP). Highly crystalline PPS has until now resisted extrusion at less than 0.25-in. thickness due to its poor melt strength and the resulting sheet’s tendency toward brittleness.
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Reborn HPM Launches New Injection & Extrusion Machinery
Much has changed in a year for HPM Corp., the 125-year-old Ohio manufacturer of injection, extrusion, and die-casting equipment.
Read MoreNPE Newsfinder: Extrusion
NPE will show higher outputs of practically everything, as advances in grooved feeds, servo drives, screw torque, mixing screws, dies, and downstream cooling, cutting, and handling make everything run faster.
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