Metallurgical Consideration about Abnormal Events during Slab Continuous Casting Process in the Quality Diagnosis Model

Some kinds of abnormal events occurred possibly during casting process have been taken into full consideration in the slab quality online diagnosis & analysis mathematic model, CISDI_SQDS ONLINE R2011, the effects of which on relevant crack formation index have been introduced into the model in terms of the event level. As for the capture modes of event status, there are two styles, one is manual set mode, the other one is automatic judgment mode. And also, the effect ranges of all the events in the casting strand have been discussed respectively. The mathematic model has been put into industrial application successfully in Xinjiang Bayi Steel, which shows obviously that, the capture method of event status is accurate and reliable, the influence factors of events to quality defects are reasonable and can reflect the effect degree normally.