METHOD FOR DYNAMIC ROLLING GAP CONTROL DURING FLEXIBLE ROLLING OF METAL STRIPS

摘要

Method for the dynamic roll gap control in the flexible rolling of metallic strip material with the steps: Specification of a nominal thickness profile (1) with defined desired corner points (E) and between the desired corner points (E) lying profile sections with different average slope, on at least one part number the profile sections between the desired corner points (E) are defined target intermediate points (S); Flexible rolling of the strip material according to the nominal thickness profile (1); Measuring an actual thickness profile of the flexibly rolled strip material; Determining actual corner points (E ') corresponding to the desired corner points (E) and actual intermediate points (S') corresponding to the desired intermediate points (S); Determining vertex comparison values (ΔD, ΔL) from the desired corner points (E) and the corresponding actual corner points (E ') as well as intermediate point comparison values (ΔD', ΔL ') from the target intermediate points (S) with the corresponding ones Actual intermediate points (S '); Controlling a roll gap as a function of the vertex comparison values (ΔD, ΔL) and the intermediate point comparison values (ΔD ', ΔL').