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- W4386426015 abstract "PDF | The better EAF refractory performance can be achieved by combining refractory materials and practices, metallurgy process parameters and proper slag composition. These 3 factors are well known as the key success for Steel Shop production. Vallourec Brazil Steelmaking (VSB) counts on a very singular Consteel EAF which uses Hot Metal supplied by a Charcoal Blast Furnace. Nowadays, the Steel Shop is operating with 2 main recipes, one with and one without Hot Metal in the charge. Based on this, the SiO2 content in the slag can vary once the Si content from the charge is different when it is used Hot Metal compared for those heats without it. As consequence, the focus on having an adequate slag chemical composition is an important issue for process feedback and control balancing both metallurgy and refractory. Slag saturation and basicity have been specially studied in this work, guiding actions that aims evaluating this control and benefits in the EAF refractory lifetime. The slag composition was evaluated using quaternary oxide system of MgO-CaO-FeO-SiO2, also analyzing the dual (saturated with CaO and MgO) and MgO saturated EAF slag chemistry comparing the historical data and period of trials. The results indicated an effect increasing the refractory lifetime for the trial period which action is described and evaluated in this paper" @default.
- W4386426015 created "2023-09-05" @default.
- W4386426015 creator A5045713317 @default.
- W4386426015 date "2023-08-01" @default.
- W4386426015 modified "2023-09-30" @default.
- W4386426015 title "THE ANALYSIS OF SLAG CHARACTERISTICS AT VSB EAF CONSTEEL® CHARGING HOT METAL AND THE INFLUENCE ON REFRACTORY PERFORMANCE" @default.
- W4386426015 doi "https://doi.org/10.5151/2594-5300-39646" @default.
- W4386426015 hasPublicationYear "2023" @default.
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