Study of steel homogenization with inert gases in ladle metallurgy plant

A radionuclide tracer technique was used to assess the process of homogenization of steel on a unit for applying compressed inert gases at the oxygen converter steel works in Trinec. The method was applied to two test melts. In order to study the fluctuation of the metal substance, radionuclides 51Cr, 110mAg, 124Sb and 198Au were used. Also studied was the deoxidation of steel with granulated aluminium added to the ladle in the course of refining. 46Sc was used to determine the scattering of aluminium and its oxides in the steel at the beginning and in the course of casting, and also in the finished rolled product. The results have confirmed that the procedure will help to reliably and relatively very quickly verify the efficacy of the operating technology and to obtain objective documents for its optimization. (Z.S.). 6 figs., 6 refs