POSCO Holdings Inc.
Straightening system and straightening method

Abstract:

A straightening system is provided to perform straightening in conformity with a shape pattern of a the material. The straightening system includes a cooling device configured to spray a cooling fluid in a predetermined pattern with respect to a plurality of regions of the material, divided in a width direction, to cool the material that is heated in a heating furnace and then passes through a rolling mill. The straightening system also includes a straightening device configured to straighten the material passed through the cooling device. The straightening system further includes a flatness measuring system configured to measure flatness of the material passed through the cooling device and a controller configured to receive data of the flatness of the material from the flatness measuring system and to control the cooling device in response to the data to enhance the flatness of the material.