| 摘要 |
<p>PURPOSE:To significantly decrease off-gauge length and to improve the product yield, by previously deciding a sheet-thickness controlling pattern capable of making the off-gauge length minimum in accordance with rolling conditions, etc. in experiential and experimental manners. CONSTITUTION:A target sheet-thickness pattern required to decrease the off- gauge length at the top and bottom parts, etc. of a material to be rolled, measured at the point of time when a finish rolling of the material is completed, as much as possible is previously set based on the various dimensional units or rolling conditions, etc. Then in rolling the material, press-down positions are controlled so as to coincide with the target pattern. Thus the sheet thickness at the time of pass-through and run-out in a rolling mill, is controlled so as to decrease the off-gauge in rolling and to significantly improve the product yield.</p> |
