Posted by dave (188.8.131.52) on December 21, 2002 at 19:21:22:
In Reply to: Screw for extrusion - need help posted by Sonia Martin on December 05, 2002 at 02:27:26:
: I am an Engineering student, finishing studies.
: I am designing a extruder for paste. I am looking for a formula for work, because I have to decide a motor.
: My screw is similar to a Archimedes screw.
: thankz, and excuse my poor English
The motor may be sized on 2 factors: the first is the volume of paste per unit time. The second is the working pressure. Multiplying the two gives the power required to drive the screw.
Then the volume/revolution of the screw can be divided into the volume per unit time to give the motor RPM.
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