Study on the Cleanliness of Large section alloy steel continuous casting semifinished product and control

This article is aimed at 45 #,40Cr,20CrMnTiH and other kinds of large-section steel slab mixed problem resulted in the round bar rolling Φ120 when mixed with low-fold,as well as upset crack defects proposed by the.To this end we have from the continuous casting equipment,slag,casting and other aspects of protection of an analysis of the relevant measures taken have achieved good results.