Abstract
The West Siberian Integrated Iron-and-Steel Works has tested in 350-ton casting ladles mullite-corundum refractories of grade MKB-75 (TU 14-8-633-95) produced by the Semiluki Refractory Plant. The use of these refractories in the ladles for casting steel into molds provides an endurance of 40 heats without replacing the slag zone or the bottom, which is 1.5 times higher than the endurance of ladles lined with conventional KVKB refractories. The use of MKB-75 refractories for continuous casting is inexpedient because of the elevated specific consumption and low endurance of the refractories.
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