An Extruding operation uses a polymer melt with a viscosity of 12 x 1ot and produc...
(5 pts) Continuous tubing is produced in a plastic extrusion operation through a die orifice whose outside diameter = 2.0 in and inside diameter = 1.5 in. The extruder barrel diameter 5.0 in and length = 12 ft. The screw rotates at 50 rev/min; it has a channel depth 0.30 in and flight angle 16°. The head pressure has a value of 350 lb/in2 and the viscosity of the polymer melt is 90 x 10-4 lb-sec/in2. Under these conditions, what...