Papers by Keyword: Edge Rolling

Abstract: Edge rolling in roughing area of continuous hot strip rolling is a basic method of controlling slab width. Edge rolling will induce dog-bone, width loss and fish tail at head and tail ends of slabs in unsteady deformation zone. A 3D elastic-plastic FEM model for roughing stage of continuous hot strip rolling was established and research on the influences of those technical parameters such as slab width, thickness and reduction of edging roll on unsteady deformation of metal was carried out. The research work provides a scientific basis for the optimization of edge rolling schedule.

Abstract: According to characteristics of adjusting width by vertical roll at a certain steel corporation, unsteady deformation of head and tail of slab during edge rolling was analyzed by FEM simulation on base of a commercial software. The effect of several process conditions on the cross-section deformation and width loss of slab were also analyzed.

Abstract: The slab edge rolling has been widely used in the roughing stand of hot strip mill to control the width of the slab. However, the slab edge rolling and consequent horizontal rolling will cause a significant width change in the head part and tail part of the slab, which have to be trimmed before the finishing stands. The short stroke control (SSC) technology has been developed to overcome this problem. In this paper, the finite element method (FEM) has been used to simulate the unsteady edge rolling process. Three SSC control curves have been compared in order to obtain the best width control result. The optimized SSC control curve has been applied to the industrial rolling mill.