The present invention provides an effective method for mechanically
removing iron oxide films formed on the surfaces of a hot rolled steel
strip with a high temperature. The method comprises the steps of:
maintaining a steel strip coil at a high temperature of 400.degree. C. or
more until the phase transformation is completed, after hot rolling;
water-cooling the steel strip coil at a speed of at least 50.degree.
C./sec to 100.degree. C. or less while uncoiling the coil; correcting the
shape of the steel strip using a correction rolling mill; removing oxide
films formed on surfaces of the shape-corrected steel strip by injecting
water jets to the surface; and drying the steel strip free of oxide films
and winding the steel strip. Also, the present invention provides an
apparatus for carrying out this method.
