What happens if the roll surface of the rolling mill production line is not in a horizontal plane?

If the roll surface of the rolling mill production line is not in a horizontal plane, the geometric accuracy of the roll surface will be destroyed, and the friction between the roll surface and the rolled piece will produce mechanical wear, so it is necessary to grind and repair the roll surface regularly. In order to meet the technological requirements of shape control, the roller surface bus should be processed into various special high-power curves according to different technological requirements. The working roll weight of small 20-high mill is only about 100g, while the supporting roll weight of wide and heavy plate mill has exceeded 200 tons. At the same time, the busbars of the work roll and the backup roll must be coupled and matched with each other according to certain requirements, which is difficult to process. The cold roll is the shape of two centers, neither too loose nor too tight. When the roll is too loose, the cold roll will move and jump slightly during grinding, which will affect the machining accuracy and surface roughness of the roll. If it is too tight, the friction between the center hole and the center of the roller will be great, and there will be more heat. If the roller is twisted, the roller will be bent and deformed, and the surface roughness and roundness after machining are poor.