DETECTION OF BREAK LINES AT THE 80-INCH T EMPER MILL OF SOLLAC-FLORANGE

A measuring system allowing a prevention of the defect ''break lines'' on a stand of a temper mill for cold rolled sheets is presented. The aim is to identify automatically the phenomena occuring before the com ing out of the defect in order to modify the rolling schedule. This al lows to suppress the defect (quality improvement), and to increase the service life of the back-up rolls (reliability and costs).