Maintenance of Steel Mill Rolls for Flat Rolled Products by Roll Turning Lathe

Abstract

<p>The thesis investigates roll turning for the maintenance of steel mill rolls at DOFASCO and culminates in the specification of a roll turning lathe. The thesis can basically be divided into three main categories: (1) The application of steel mill rolls for both hot and cold rolling processes, their requirements and characteristics.</p> <p>(2) Present roll maintenance practices and machinery. All rolling mill rolls require a regular redressing to restore the specified surface quality and the specified cylindricity which is necessary to produce a high quality product. Roll surface conditions prior to machining are of particular interest. A new approach to the maintenance of steel mill rolls is investigated. This is the replacement of roll grinding, which is generally applied throughout the steel industry, by roll turning.</p> <p>(3) The economic justification for roll turning leads to the development of specifications for the selection and procurement of a roll turning lather for the maintenance of steel mills rolls at DOFASCO.</p>