METHOD AND APPARATUS FOR DETECTING CHATTERING OF COLD ROLLING MILL

摘要

The invention provides a method of quickly and accurately detecting the chattering of a rolling mill during cold rolling. The presence of chattering is determined using a plurality of acoustic parameters derived from sounds measured near a rolling mill during cold rolling. The acoustic parameters include the sound intensities of the frequency band characteristic of the chattering and the Nth overtone frequency band, the peak frequency of the sound frequency component distribution, the resonance coefficient, and the peak intensity. The same parameter may be measured at different instants, processed and used as different parameters.