JPS5594706A - Rolling method - Google Patents

Abstract

PURPOSE: To make possible the rolling work with a high draft percentage, by executing simulaneously, stably three rolling works through one pass.

CONSTITUTION: The strip 3 is passed the gap between the backup roll 4 and the outer work roll 2, and winds a half periphery of the work roll 2, and is passed the gas between this work roll 2 and the central work roll 1. Next, the strip 3 passes the gap between the central work roll 1 and the outer work roll 2', and the gap between the work roll 1 and the work roll 2"; then, the strip 3 winds a half periphery of the roll 2" and goes out of the gap between the roll 2" and the roll 4". While the strip 3 is threaded under above stated conditions, the strip 3 undergoes the rolling reduction simultaneously at three rolling points, and is subjected stably to the rolling tension on the inlet side and the outlet side by the backup rolls 4, 4", and the outer work rolls 2, 2".

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