Factors Affecting the Accuracy of Plate Thickness and Their Influences on Plate Flatness

Abstract

In plate rolling, the plate thickness is controlled by using the mill itself as a plate thickness measuring device, namely Gaugemeter. To maintain the Gaugemeter accuracy is very important not only for plate thickness control but also for plate flatness control. That is:
(1) The Gaugemeter error is a basic factor which impairs the accuracy of plate thickness.
(2) The Gaugemeter error sometimes reaches 1008μm.
(3) The variation in the plate thickness based on the Gaugemeter error can become the largest factor that affects badly plate flatness through the variation in the rolling load.