Method and apparatus of cooling steel strip in continuous heat treating line

摘要

The steel strip which has been cooled through a cooling zone in a continuous heat treating line is finally cooled by immersing in cooling water in a cooling tank under the controlling in accordance with the following formula:-$\mathop{\mathrm{image}}$;With such controlling of cooling, any dirt adhesion on the surface of the strip caused by contacting with a sink-roll is prevented.