Industrial on-line texture determination in rolled steel strips

Abstract

In the manufacture of sheet metal, it is ofgreat importance that the quality should be homogeneous over the entire length of a strip. This can only be monitored using a continuous, on-line measuring method. A new X-ray transmission measuring technique has been developed for the nondestructive determination of texture-dependent technological data of rolled strip. It can be applied on-line for both hot and cold rolled metal strip, especially steel strip. The paper describes the measuring principle and gives information on the application for measuring ther m -values and the earing-values of cold rolled steel strip. With the data from these values, the user can control the deep drawing characteristics of his strips. The extension of the basic measuring principle to a condition-free determination system will be demonstrated with its application for measuring texture dependent technological data of hot and cold rolled steel strip. Long term experience at Hoesch Stahl AG, typical results measured over the total strip length, integration in quality assurance systems, questions of maintenance, etc. will be discussed.