Control of thermal crown in the roller inside the continuous annealing furnace

In a continuous annealing furnace,the hearth rollers are affected by heat,which in turn affects the stable operation of the steel strips.In order to ensure the stable operation of the steel strips the ability of the rollers to correct themselves and to prevent the steel strips from buckling,effective measures are required to control the surface crown of the rollers inside the furnace.Starting from production,this study analyzes the way in which the crown of the hearth rollers inside the continuous annealing furnace changes.The study suggests control measures to prevent buckling and and misalignment.The study definitely provides guidance to the stable operation of steel strips in continuous annealed furnaces.