Development and application of cold strip rolling flatness control system in Ansteel

In this paper,the flatness control technology AnShaper^TM for cold-rolling mill and industry application are introduced.AnShaper^TM includes;partitioning piezomagnetic shape meter for flatness measurement for cold-rolling strip;flatness measured signals processing system based on digital signal processing（DSP）;flatness feedback control model system based on the control efficiency of flatness control actuators and model adaptive function.The application verifies that strip flatness can meet the need of high quality product by using AnShaperTM.The average flatness quality is about 5Ⅰ-unit and the 0.18 mm ultrathin thickness strip flatness is 10Ⅰ-unit.