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November 1, 2005

1 Min Read
Barrier screw keeps melt temperature down

PF_Xaloy_Fusionscrew.gif
The Fusion Screw is said to deliver high throughput at low melt temperatures, with benefits in both extrusion and injection molding. In extrusion and molding trials, throughput rates achieved with the Fusion screw were up to 22% higher than those typically achieved with standard mixing screws. Melt temperatures were also lower, which can cut molding cycle time and improve the quality of both molded and extruded products.
Like other barrier screws, the screw?s design separates melted material from unmelted solid material into separate channels. A chaotic-mixing feature thoroughly homogenizes the melt with little or no increase in its average temperature. Mixing is achieved with an undulating root profile in the metering zone of the screw. Production trials reportedly show that the screw delivers benefits in extrusion of a wide range of materials, including LDPE, HDPE, LLDPE, PP, and PET/ABS.

Xaloy Inc., Pulaski, VA
(540) 994-2269; www.xaloy.com

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