Open AccessEVALUATION OF THE EFFICIENCY OF USING SK30 WIRE IN STEEL PROCESSING AT THE LADLE FURNACE PLANT
Author(s) -
D. V. Rutskiy,
Anton Agarkov,
N. A. Zyuban,
M. S. Nikitin,
R. M. Vojtenko,
M. M. Zimin
Publication year - 2021
Publication title -
izvestiâ volgogradskogo gosudarstvennogo tehničeskogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1990-5297
DOI - 10.35211/1990-5297-2021-7-254-46-49
Subject(s) - metallurgy , materials science , corundum , ladle , continuous casting , casting , aluminium , inclusion (mineral) , filler (materials) , non metallic inclusions , induction furnace , alloy , composite material , mineralogy , geology
The paper presents studies showing the effectiveness of the use of wire with SiCa filler in the out-of-furnace processing of steels. The efficiency of use was evaluated by calculating the contamination with non-metallic inclusions, as well as by determining the phase composition of non-metallic inclusions at the stages of out-of-furnace processing and casting. (installation bucket furnace→vacuum cleaner→continuous casting). The study found that the adjustment of the content of aluminum before casting leads to the formation of refractory inclusions of corundum - (AlO), spinels - (AlO·MgO), which are deposited on the walls of the steel filling path and worsen the spillability of steel. The use of SK30prov with SiCa filler at the final stages of extra-furnace processing (after the introduction of aluminum), leads to the modification of refractory inclusions in low-melting calcium aluminates of the type (CaO·AlO). The presence of low-melting inclusions is more preferable, since this type of inclusions is not deposited on the walls of the filling cup and does not have a negative effect on the contamination of the continuously cast billet and products obtained from them with inclusions.