Rolling of workpieces in continuous rolling mill trains - where tension is applied to workpiece to reduce energy and plant costs

摘要

The workpiece consists of a rod, bar, billet or profile, made esp. of steel, and travelling through a row of roll stands in which the gaps between each pair of work rolls is adjusted to the required dimensions, and the speed of rotation of the rolls is adjusted to apply tension to the workpiece. The tension is used to improve the efficiency of rolling, i.e. to increase the speed at which the cross-section profile of the workpiece is altered. After a desired number of passes, and not later than when max. flash is obtd. on the workpiece, the latter is cropped.