STRIPS' SURFACE CRACKS' FLAW DETECTION AND THICKNESS AND WIDTH MEASURING DEVICE

摘要

The invention relates to a device for measuring the thickness and width of flat steel and testing for surface cracks therein. The object of the invention is to improve the quality assessment of the flat steel, reduce the susceptibility of the rolling mill to faults and increase the efficiency of flat steel production. It is the object of the invention to provide a device which, in addition to testing and measuring the flat steel running freely out of the last rolling stand, makes possible smooth running of the latter through the testing and measuring device. According to the invention, a centring driver is arranged between the device for measuring thickness and width and the cooling bed shear or between the testing device for surface cracks and the cooling bed shear, a rolling stock detector being assigned to the centring driver, the distance between the device for measuring thickness and width and the centring driver being variable and the distance between the testing device for surface cracks and the centring driver being constant. The invention is employed in rolling mills. IMAGE