Particulate slagging composition for the extended optimum...

Details Particulate slagging composition for the extended optimum... Particulate slagging composition for the extended optimum...

C - Chemistry, Metallurgy

21

C

53/109

C21C 7/00 (2006.01) B22D 11/111 (2006.01)

Patent

CA 1150516

ABSTRACT A particulate slagging composition for the extended optimum continuous casting of a steel which tends to evolve alumina into the molten protective layer of said composition maintained on the top of a pool of molten steel. Such particulate slagging composition is characterized by a R' ratio (the sum of the theoretical net oxide analysis values of CaO + MgO + BaO + SrO + MnO + FeO + F + B2O3 to the theoretical net oxide analysis value of SiO2) preselected for obtaining operational ADK values not substantially in excess of about 750 seconds after substantial absorption of alumina from the steel.

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