Method of controlling a shape of a rolled sheet

Details Method of controlling a shape of a rolled sheet Method of controlling a shape of a rolled sheet

1978-11-07

1980-04-15

Mehr, Milton S.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

B21B 3706

Patent

active

041977270

ABSTRACT:
In a tandem type rolling mill, it is difficult to control each roll bending force so as to produce a constant forward slip and a constant backward slip at each stand in the transversal direction.
A first shape meter is disposed between a pay-off reel and a first stand and a second shape meter is disposed between a tension reel and a last stand. The roll bending forces under the first stand, the second stand, . . . the lth stand are controlled so as to produce a constant backward slip at the first stand as measured by the shape meter disposed between the pay-off reel and the first stand to provide a predetermined value.
The roll bending forces under the first stand, the second stand, . . . the lth stand are also controlled so as to provide a constant forward slip at the last stand as measured by the shape meter disposed between the last stand and the tension reel to provide a predetermined value.
The feeding of a roll coolant is also controlled together with the control of roll bending forces.

REFERENCES:
patent: 3731508 (1973-05-01), Sabatini et al.
patent: 3934438 (1976-01-01), Arimura et al.
"ASEA-ALCAN AFC System . . .", Sivilotti et al., Iron and Steel Engr., Jun. 1973, pp. 83-90.
"Design & Development of a Shape Control System", Bravington et al., Met. Soc., 183, 1976, pp. 82-88.
"Operation of Experience . . .", Van Haperen et al., Met. Soc., 1976, 183, pp. 63-70.

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