Crown control compensation controlling method in multiple roll m

Details Crown control compensation controlling method in multiple roll m Crown control compensation controlling method in multiple roll m

1986-02-04

1987-12-29

Larson, Lowell A.

Metal deforming

Process

'rolling'

72 8, 72 11, 72 16, 72 20, 72244, 72245, B21B 3712

Patent

active

047152095

ABSTRACT:
A crown control compensation controlling method in a multiple roll mill, in which a variation of rolling load caused by crown control is obtained from a crown control quantity. A wedge type hydraulic reduction device is operated according to the variation of rolling load to thereby cancel such rolling load variation. Both an automatic gauge control (AGC) and an automatic shape control (AFC) can be attained while preventing a change in plate thickness caused by crown control.

REFERENCES:
patent: 3620058 (1971-11-01), Sabatini et al.
patent: 3709010 (1973-01-01), Tatsumi
patent: 3855830 (1974-12-01), Kitanosono et al.
patent: 3875775 (1975-04-01), Daniljuk et al.
patent: 4458515 (1984-07-01), Imai
patent: 4577480 (1986-03-01), Kizaki et al.

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