ROLLING CONTROL APPARATUS AND A ROLLING CONTROL METHOD FOR IMPROVING MAGNETIC CHARACTERISTIC AND QUALITY OF ELECTROMAGNETIC STEEL SHEET

摘要

PURPOSE: A rolling control apparatus and a rolling control method are provided to simultaneously control a plate temperature of a rolled material and a temperature distribution in a direction of the width of a plate, and a plate shape of the rolled material to thereby improve magnetic characteristic of an electromagnetic steel sheet. ;CONSTITUTION: A rolling control apparatus comprises a work roll(75), a coolant spray unit, a form detecting unit, a temperature distribution detection unit, a shape deviation operation unit, a temperature distribution deviation operation unit(54), a coolant spray degree operating unit, a coolant spray control information setting unit, and a coolant spray instruction unit. The work roll rolls a rolled material. The coolant spray unit sprays coolant to the work roll and the rolled material. The shape detecting unit detects the shape of the plate width direction of the rolled material. The temperature distribution detection unit detects a temperature distribution in the plate width direction of the rolled material. The shape deviation operation unit computes a target shape to calculate a shape deviation. The temperature distribution deviation operation unit calculates a temperature distribution in the plate width direction of the rolled material, a target temperature distribution and a temperature distribution deviation. The coolant spray degree operation unit calculates a shape deviation and temperature distribution deviation to compute sprayed coolant distribution in the plate width direction. The coolant spray control information setting unit sets control information for spraying the coolant. The coolant spray instruction unit instructs the coolant spray unit to spray the coolant based on the control information.;COPYRIGHT KIPO 2011