| 摘要 |
<p>PURPOSE:To obtain the hot rolling steel strip with excellent uniform width by pressing the vertical type milling cutter to both side parts of steel strip width and operating it with the speed faster than the transferring speed of steel strip until it comes beyond the top end of the steel strip. CONSTITUTION:The rough rolled stock is straightened preliminarily so that the hot rolled steel strip after completion of finish rolling has the uniform width and the sectional shape becomes rectangular. At first, clops of the top and bottom is cut with a clog shear 3. When the top end part of the rough stock passes through the milling equipment by a definite dimension, the width opening degree of the vertical milling cutters arranged at the bilateral sides of the plate width is adjusted to the width to remove a flare like projecting part 7 if it exists. The milling equipment 4 is moved to the advancing direction of the rough rolled stock with the speed faster than the rough rolled stock transferring speed, this flare like projecting part is cut with the milling machine 5. At the same time, the width opening degree of the milling cutters if narrowed down at the top end part of the rough rolled stock and the top end of the same stock is beveled. Therefore, the hot rolling steel strip with excellent uniform width is obtain.</p> |
