Verfahren und Vorrichtung zum kontinuierlichen Walzen

摘要

A method for continuous rolling comprises the steps of: flash-butt welding to form a continuous billet by joining a rear end of a preceding billet with a front end of a succeeding billet; removing burr from a welded portion of the joined part; and continuously rolling the joined continuous billet in a rolling mill group; wherein the flash-butt welding step is characterized in that two travelling welders 3, 4, are arranged in series at a distance therebetween corresponding to the length of billet being treated along the moving direction of billet while the plurality of travelling welders move synchronously with the movement of the continuous billet, and that the two travelling welders separately and simultaneously weld the continuous billet with two billets by flash-butt welding to extend the length of the continuous billet.