Patent · US Active

Method and device for controlling a roll gap

US8539804B2 · kind B2 · utility

1Cited by

2References

23Claims

0Family size

Assignee

ABB AB · SE

Inventor

Lars Jonsson · Visby, SE

Key dates

Filing date	May 21, 2007
Grant date	Sep 24, 2013
Priority date	—
Expiry date	Jun 13, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21B2271/02
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a method and a device for controlling a roll gap when rolling a strip (1) in a rolling mill including at least two rolls (3a-b,4a-b), and at least two roll gap actuators (6,7) that independently control the size of the roll gap. The device is adapted to receive information on the amount of wedge shape (POSactOS,POSactDS) in the strip thickness profile across the strip width, and to control said actuators, based on said information on the amount of wedge shape in the strip thickness profile, such that the relative reduction of the strip on both sides of the rolling mill become essentially the same.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.