Extruder drive-energy consumption

See design, motion-control, mechanical and electronic effects drive-system control electric motor electric-motor drive extruder drive-energy consumption injection molding machine-drive system. [Pg.314]

The efficiency of the eddy-current drive is proportional to the difference between input and output speed. Thus, when an extruder is operated at low speeds for extended periods of time the eddy-current drive would not be a good candidate from an energy consumption point of view. It is possible to reduce this problem by using a two-speed AC motor to drive the eddy-current clutch [3,4]. [Pg.51]

The power consumption of an extruder was measured with a standard wattmeter connected to the extruder drive unit. These results were converted into an index of specific mechanical energy (SME) consumption according to an equation formulated by Levin [2, 3] ... [Pg.153]

A common indicator in an extruder console is the power, E, consumed by the motor drive in transporting material from feed to product exit. A higher power consumption could mean greater friction during product movement or an overloaded chamber. The torque of extrusion (F) is the energy expended by the motor drive in rotating the screw(s) and is expressed as... [Pg.339]

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