Patent · US Expired

Method and device for tension leveling a cold-rolled strip and regulating the degree of leveling

US6925845B2 · kind B2 · utility

3Cited by

7References

4Claims

0Family size

Assignee

SMS DEMAG LLC · DE

Inventors

Holger Behrens · Reutlingen, DE
Hans-Georg Hartung · Pulheim, DE
Ralf Ulrich · Mülheim an der Ruhr, DE
Bernd Kreft · Willich, DE
Stefan Melster · Erkrath, DE
Bodo Falkenhahn · Mülheim an der Ruhr, DE
Andreas Gramer · Solingen, DE

Key dates

Filing date	Aug 1, 2001
Grant date	Aug 9, 2005
Priority date	—
Expiry date	Aug 1, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21D1/05
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for tension levelling a cold-rolled strip, whereby the strip passes through a series of break rolls and a series of traction rolls and in the course of its extension is subjected to traction between the two series of rolls. The strip is bent under traction in a series of high-traction rolls, located between the brake roll and the traction roll series, in order to increase the degree of levelling. To achieve this, the series of high-traction rolls between the brake and the traction rolls has at least two traction rolls for generating the strip traction and bending operation.

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