Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1982-12-13
1984-07-03
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
264 406, 264142, 425174, 425232, 425308, 425464, H05B 100
Patent
active
044578822
ABSTRACT:
A centrifugal pelletizer has a hollow electrically and thermally conductive rotor with a series of orifices along its outer rim portion for centrifugally powering strands of heated thermoplastic material from a body of said material in a flowable state within the interior of the rotor. A knife mounted on the frame adjacent the rotor orifices severs the strands into pellets of a predetermined length. A molten material feed tube with fins therein at the exit end to divide the flow extends into a rotor housing to direct flow in a uniform manner to an axially opposite impeller on the rotor and control mechanism, sensitive to the temperature of the rotor adjacent the orifices, controls the supply of current to electromagnets, which have a peripheral magnetic flux conducting plate system extending to and forming a part of the housing creating a flux field which is interrupted by the spinning rotor to induce currents in the rotor which heat it according to the temperature sensed.
REFERENCES:
patent: 3483281 (1969-12-01), Chisholm
patent: 3912799 (1975-10-01), Chisholm
patent: 4408972 (1983-10-01), Casfield
Layfield James D.
Todd David B.
Baker Perkins Inc.
Woo Jay H.
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