Thermal crown controlled rolls

Details Thermal crown controlled rolls Thermal crown controlled rolls

1987-10-13

1988-12-27

Combs, E. Michael

Metal deforming

By use of roller or roller-like tool-element

With modification or control of temperature of work, tool or...

72201, B21B 2706

Patent

active

047931728

ABSTRACT:
Rolling mill work and back-up rolls comprising an arbor with a sleeve shrunk thereon have circumferential grooves formed in the external surface of the arbor, through which heating or cooling liquid is supplied from external sources so as to expand or contract the sleeve and change the roll crown and contour. The fins, or material between grooves, may have higher heat conductivity than the material of the arbor and sleeve, and are proportioned to transmit rolling forces without reducing roll stiffness. A liquid supply system provides liquids of different temperatures to selected sections of the grooves along the roll working surface; and strip of different widths but of uniform gauge across the strip is rolled by suitably adjusting the temperatures of the hot and cold liquids so supplied.

REFERENCES:
patent: 2068779 (1937-01-01), Tunley et al.
patent: 2793006 (1957-05-01), Eaby
patent: 3006610 (1961-10-01), Siegel
patent: 3182587 (1965-05-01), Woodhall
patent: 3257939 (1966-06-01), McDermott
patent: 3367042 (1968-02-01), Cox
patent: 3604237 (1971-09-01), Kawanami
patent: 3662821 (1972-05-01), Saxon
patent: 3752227 (1973-08-01), Bulson

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