FLYING THICKNESS CHANGING AND ROLLING METHOD FOR HOT ROLLING STRIP

摘要

PURPOSE:To reduce off-gage quantity at the time of changing thickness by minimizing the number of rolling stand. CONSTITUTION:In the flying thickness changing and rolling method for a hot rolling strip in which the thickness of a rolling stock is changed in the middle of rolling, in the case of rolling one piece of rolling stock by a mill which is provided with (n) pieces of rolling stand; the rolling conditions of all rolling stands are not changed at the time of changing the thickness but the rolling conditions from the final rolling stand to (i) rolling stand are changed in accordance with the thickness changing quantity.