Apparatus and method for influencing the frictional conditions between and upper roll and a lower roll of a roll stand

US6089069A · kind A · utility

Assignee

• SMS Schloemann-Siemag Aktiengesellschaft · DE

Inventors

• Jürgen Seidel · Kreuztal, DE
• Hans-Heinrich Hartmann · Meerbusch, DE

Key dates

• Filing date: Oct 7, 1998
• Grant date: Jul 18, 2000
• Expiry date: Oct 7, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B2275/12
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An apparatus and a method for influencing the frictional conditions between an upper roll and a lower roll of a roll stand of a hot-rolling train for wide strip or a cold-rolling train for strip. The apparatus includes a spraying device arranged at the entry side of the roll stand for spraying a defined quantity of liquid in the direction of the roll gap and a control device for determining the quantity and discharge of this liquid, wherein used as a control variable is a predetermined or also computed variable in connection with the actual roll torque of the lower roll or/and the upper roll.