COOLING METHOD AND COLD-ROLLING METHOD OF COLD ROLLING ROLL, AND COOLING APPARATUS OF COLD ROLLING ROLL

摘要

PROBLEM TO BE SOLVED: To provide a cooling method of a cold-rolling roll effectively suppressing a thermal crown of a work roll while ensuring the excellent lubricity required even in the high-speed rolling in a circulating type rolling oil feed system.;SOLUTION: First emulsion rolling oil 19 to be used in a circulated manner is fed to a roll 2a of a rolling mill stand of a cold-rolling apparatus performing the cold-rolling of a metal plate 1. Second emulsion rolling oil 20 is fed while given vibration to at least one roll 2a via a cooling means 14 from a pipe branched from a feed pipe 7 for the first emulsion rolling oil 19.;COPYRIGHT: (C)2010,JPO&INPIT