IMPROVING SURFACE QUALITY OF TWIN ROLL CAST AND HOT ROLLED THIN STRIP STEEL

摘要

A method for improving the surface quality of a twin roll cast and hot rolled thin strip steel is disclosed. The method comprises: (a) designing a quadratic curve for a full length L of a body of a pinch roll; (b)determining a region H where pinch roll marks on a twin roll cast and hot rolled thin strip steel is formed with a pinch roll having the quadratic curve in step (a); (c) designing a sextic curve in the region H; (d) determining the roll shape curve for the full length L of the pinch roll body.