Roll profile control method for CVC-6 leveling machine set

The invention discloses a roll profile control method for a CVC-6 leveling machine set, which belongs to the technical field of leveling production process. By comprising the equipment and leveling process characteristics of the CVC-6 leveling machine set, the invention provides the roll profile control method, a set of roll profile curves for preventing and controlling color difference is provided, the plate profile is controlled by optimizing the roll profile configurations of a working roll, an intermediate roll and a supporting roll and fully playing the shifting capacity of the intermediate roll and the roll bending capacity of the working roll and the intermediate roll, and the point contact between the intermediate roll and the working and supporting rolls and problems, which are caused by the point contact between the intermediate roll and the working and supporting rolls, of partially overhigh inter-roll pressure, partially over-serious wear and the like are avoided completely; and thus, on the premise of ensuring the plate profile quality of the products, the distribution uniformly of the inter-roll pressure is improved greatly, and the defects of color difference on the surfaces of steel strips are reduced effectively.