A strip of 120 mm width and 8 mm thickness is rolled between two 30 mm diameter rolls to get a strip of 120 m width and 7.2 mm thickness. The speed of the strip at the exit is 30 m/min. There is no front or back tension. Assuming uniform roll pressure of 200 MPa in the roll bite and 100% mechanical efficiency, what is the minimum total power required to drive the two rolls?
A strip of 120 mm width and 8 mm thickness is rolled between two 30 mm diameter rolls to get a strip of 120 m width and 7.2 mm thickness. The speed of the strip at the exit is 30 m/min. There is no front or back tension. Assuming uniform roll pressure of 200 MPa in the roll bite and 100% mechanical efficiency, what is the minimum total power required to drive the two rolls?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A strip of 120 mm width and 8 mm thickness is rolled between two 30 mm diameter rolls to get a strip of 120 m width and 7.2 mm thickness. The speed of the strip at the exit is 30 m/min. There is no front or back tension. Assuming uniform roll pressure of 200 MPa in the roll bite and 100%
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