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US 4,555,922 AGranted
Adaptive strip wedge control for reversing mill
AssigneeTippins Machinery Company, Inc.
InventorVladimir B. Ginzburg
Life of this patent
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Abstract
A process of rolling steel in a reversing mill by passing the steel back and forth through the mill for a selected number of passes to achieve the desired thickness and on at least two early passes, each in a different direction, tapering the ends of the steel during taper passes by adjusting the roll gap, the roll gap adjustment (.DELTA.H) being a function (F(.DELTA.F.sub.m)) of the change in roll force (.DELTA.F.sub.m) above a lock-on force (F.sub.1) which lock-on force is established on the instant taper pass.
Claims12
A process of rolling steel in a reversing mill comprising the steps for:
- (a) passing the steel back and forth through the mill for a selected number of passes to achieve the desired thickness,
- (b) on at least two early passes, each in a different direction, tapering the ends of the steel during taper passes by adjusting the roll gap, said roll gap adjustment (.DELTA.H) being a function (F(.DELTA.F.sub.m)) of the change in roll force (.DELTA.F.sub.m) above a lock-on force (F.sub.1) for which the roll gap adjustment (.DELTA.H) increases as the change in roll force (.DELTA.F.sub.m) increases to effect a taper, said lock-on force and the beginning of tapering being dynamically established on the instant taper pass.
Dependencies are inferred from the claim text.