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| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
An extruder has a barrel diameter of 3.5 in and a length of 5.0 ft. It has a screw channel depth of 0.16 in and a flight angle of 22°. The extruder screw ro-tates at 75 rev/min. The polymer melt has a shear vis-cosity = 65 x 10-4 lb-seeen2 at the operating tem-perature of 525°F. The specific gravity of the poly-mer is 1.2, and its tensile strength is 8000 lb/in2. A T-shaped cross section is extruded at a rate of 0.11 lb/sec. The density of water is 62.5 1b/ft3. (a) Find the equation for the extruder characteristic. (b) Find the operating point (Q and p), and (c) the die characteristic that is indicated by the operating point.
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