ABSTRACT
The strip thickness pro le refers to the variation in thickness (or gauge) of the strip in the lateral direction, transverse to the direction of rolling. In other words, it is the thickness variation across the width of the strip. Although the strip pro- le can assume any form, depending on mill parameters and the action of pro le control mechanisms, in practice, it tends to assume a convex parabolic form, as shown in Figure 30.1a, because of the natural mill de ection characteristics. The strip pro le may become concave due to mechanical roll crown and thermal roll expansion. A parameter commonly associated with the strip pro le is the strip crown , which is a measure of the increase in thickness at the center of the strip width relative to other lateral locations. As de ned in Equation 30.1 and shown in Figure 30.1b, the strip crown, denoted here as C ( x ), is the difference between the center thickness, H (0), and the thickness H ( x ) at an arbitrary location x along the strip width.
