Global Patent Index - EP 0151675 A2

EP 0151675 A2 19850821 - Method of automatically controlling the rate of reduction in a rolling mill.

Title (en)

Method of automatically controlling the rate of reduction in a rolling mill.

Title (de)

Verfahren zur automatischen Steuerung der Dickenabnahme in einem Walzwerk.

Title (fr)

Procédé de réglage automatique du taux de réduction dans un laminoir.

Publication

EP 0151675 A2 19850821 (EN)

Application

EP 84107573 A 19810429

Priority

EP 84107573 A 19810429

Abstract (en)

The invention describes a method for automatically controlling the rate of reduction suitable for ARC mode of the method for automatically controlling the strip thickness, the rate of reduction is controlled such that an output thickness of the material is calculated from an actually measured input thickness of the material and the desired rate of reduction based on the principle of the constant mass-flow rate of the material being rolled an input thickness is estimated from the calculated output thickness, an input length and an output length and an error signal between the estimated input thickness and the actually measured input thickness is diminished to zero.

IPC 1-7

B21B 37/02

IPC 8 full level

B21B 37/18 (2006.01); B21B 1/36 (2006.01)

CPC (source: EP)

B21B 37/18 (2013.01); B21B 1/36 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0151675 A2 19850821; EP 0151675 A3 19871104; EP 0151675 B1 19910731; DE 151675 T1 19860227; DE 3177252 D1 19910905

DOCDB simple family (application)

EP 84107573 A 19810429; DE 3177252 T 19810429; DE 84107573 T 19810429