Precision control of the slab is crucial for product quality and production economy in hot strip mill. This paper presents a new model for the prediction of the width spread of a slab with a rectangular cross section during roughing mill. The model is...
Precision control of the slab is crucial for product quality and production economy in hot strip mill. This paper presents a new model for the prediction of the width spread of a slab with a rectangular cross section during roughing mill. The model is developed on the basis of the extremum principle for a rigid plastic material and a three dimensional admissible velocity field. This model also reflects the effect of process variables such as shape factor and ratio of width to thickness. We compared this model with the 3-D finite element (FE) process simulations and also with the study of the past.