METHOD OF CONTROLLING AN EDGING OPENING IN A ROLLING MILL

摘要

The width of plate to be passed through a rolling mill is controlled by edge rolling between vertical rolls to swell the edges to a 'dogbone' profile, subsequently flattened between horizontal rolls, to produce the required width. The width distribution along the length of the plate is measured at the entry of the edge rolls. This value is combined with a target width deviation of the rolled material at the outlet from the horizontal rolls, and a predetermined pass schedule to calculation optimum edging opening quantity distribution. The calculated results are fed to an edging opening setting unit for the feed forward control.