Abstract
In this paper the burn-out of the alloying elements Ti, Al in the electroslag refining was studied. The experiment was conducted on laboratory scale electroslag refining (ERS) equipment, the steel grades used in the study contain Ti and Al alloy elements. Experimental results showed that the burn-out ratio of Ti and Al in ESR was quite high. To minimize that ratio, it was possible to apply technological measures such as: using protective gas and selecting of an appropriate slag system, as well as combining additives containing Ti and Al for slag in the refining process. When applying these measures, the burning level of Ti and Al has decreased significantly compared to the previous one (from > 50 % to below 20 %). Especially in case of using the ANF-32 slag + 10 % TiO2 and conducting the operation of ESR under the Ar gas environment, the burn-out ratio of these alloy elements exhibited a negative value.
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