METHOD OF ROLLING METAL PRODUCT

摘要

The present invention relates to methods of rolling metal articles and can be used to advantage in rolling sheet steel. This method envisages the rotation of drive and driven work rolls in opposite directions at a higher and a lower peripheral speeds, respectively. The chosen ratio between the peripheral speeds of the work rolls is less than the elongation of the article so that thereby the specified unit tension applied to the article at the exit section thereof is provided for with reference to the ultimate strength of the metal emerging from the rolls. This is conducive to increasing the maximum elongation of the article and reducing the roll force by a considerable amount with the constriction of the article in breadth at the same time.