Method and apparatus for rolling a metal strip

US5740686A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Thomas Martinetz · Munich, DE
• Thomas Poppe · Hersbruck, DE
• Guenter Soergel · Nuremberg, DE
• Otto Gramckow · Uttenreuth, DE

Key dates

• Filing date: Jun 28, 1995
• Grant date: Apr 21, 1998
• Expiry date: Jun 28, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B37/22
• WIPO field: Control
• WIPO sector: Instruments

Abstract

In rolling a metal strip in a roughing line and a finishing line, the rolling process in the roughing line is adjusted as a function of a predicted value for the change in width of the metal strip in the finishing line such that the metal strip has a given specified finished strip width on leaving the finishing line. In order to permit a reliable prediction of the change in width despite the lack of accurate information regarding the dependence of the change in width on influencing parameters that affect the process, this dependence is simulated in a neural network whose network parameters are adapted after each passage of a metal strip through the finishing line as a function of the influencing parameters measured or calculated during the passage and the measured actual change in width.