DETECTION OF ROLLER DAMAGE AND/OR MISALIGNMENT IN CONTINUOUSCASTING OF METALS

摘要

A method for detecting roller irregularities during on-line continuous casti ng of a metal comprises; i) continuously monitoring the changes in the mould level over time; ii) identifying large periodic influences affecting the mou ld level versus time function and their frequency, iii) comparing the frequency of the periodic influences of step ii) with predicted frequency harmonics based on a normal operation of the casting process and highlighting by comparison of the predicted and actual frequencies characteristics indicativ e of irregularities in roller behaviour.