Cross rolling mill, cross rolling method and cross rolling mill

Details Cross rolling mill, cross rolling method and cross rolling mill Cross rolling mill, cross rolling method and cross rolling mill

1992-12-23

1994-11-22

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

Plural roller-couples

72234, 72237, 722412, 72248, B21B 3120, B21B 134

Patent

active

053657640

ABSTRACT:
In a rolling mill comprising upper and lower work rolls crossed each other to perform strip crown control, a straight line connecting the center of an operation side screwdown screw and the center of a drive side screwdown screw is inclined relative to a line perpendicular to the rolling direction. A cross angle .theta. to be controlled is changed in opposite plus and minus directions about the straight line connecting both the screwdown centers. A large extent of strip crown control can be achieved with a smaller cross deviation than usual in the prior art, thereby permitting omission of an equalizer beam. Further, change in the extent by which strip crown is varied upon control with respect to the cross angle becomes substantially linear and hence control is more easily conducted. Since the cross angle 2.theta. between the two work rolls is larger than 2.degree., the transition temperature is not changed and uniformity in quality can be ensured.

REFERENCES:
patent: 1860931 (1932-05-01), Keller
patent: 2762295 (1956-09-01), Varga et al.
patent: 4385512 (1983-05-01), Matsumoto et al.
patent: 4433566 (1984-02-01), Tippins et al.
patent: 4453393 (1984-06-01), Hino et al.
patent: 4727741 (1988-03-01), Ushifusa et al.

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