A METHOD OF ADJUSTING STRIP THICKNESS VARIANCE CAUSED BY ECCENTRICITY OF ROLL

摘要

PURPOSE: A method for compensating and controlling a slab thickness change according to eccentricity of a roll is provided to measure eccentricity of a casting roll and choke before casting and repeatedly reflect the eccentricity in chock control during casting to thereby prevent the eccentricity of the roll from being connected to slab thickness hunting. CONSTITUTION: A method for compensating and controlling a slab thickness change according to eccentricity of a roll includes the following steps. A roll gap variation due to eccentricity is measured in advance when a casting roll(10) rotates one round before casting to determine a compensation value according to the roll gap variation. The position of a chock(20) is repeatedly moved and adjusted depending on the compensation value. The roll gap variation is obtained by measuring circularity of both edges of two casting rolls.