B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/42, 341/48
B21B 3/02 (2006.01) B21B 13/14 (2006.01) B21B 35/04 (2006.01)
Patent
CA 1241557
ABSTRACT Upper and lower reducing rolls are mounted within a mill housing for rotation about their axes and for parallel movement. Actuating means forces the upper reducing roll downward toward the lower reducing roll to effect a separation force on a workpiece that is placed therebetween. Four direct drive motors, one directly coupled to each end of the upper and lower reducing rolls, counter-rotate the reducing rolls to drive the workpiece therebetween. The motors are synchronized within a close tolerance of a set speed to prevent torsion of one end of the reducing rolls relative to the opposite end. Preferably, the rolling mill includes closely enclosed backing rolls engaging the reducing rolls to prevent deflection of the reducing rolls under load. This allows the rolling mill to produce a flat workpiece over a wide range of separation forces by means of cylindrical reducing rolls. The rolling mill is particularly suited for specialized rolling because it main- tains the crystal structure of the workpiece and permits greater separation forces to be applied than with other rolling mills.
480438
Perley-Robertson Hill & Mcdougall Llp
Teledyne Inc.
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