Abstract
The mathematical processing results of a number of EAF-135 melts electrical parameters are presented. The influence of the foamy slag formation, molten metal carburization and the harmful impurities oxidation on the change in electrical parameters is analyzed. The methodology for determining the metal oxidation from the electrical melt parameters is characterized. In the presented form, the technique is cumbersome for the rapid assessment of the oxidation process intensity and requires refinement.
 Keywords: Metal oxidation, electric parameters, electric arc furnace
Highlights
The slag regime and the oxidation stage of the process play a special role in the technology of electric smelting of steel intermediate, since technical and economic indicators (TEI) of both the smelting itself and subsequent metal processing in the ladle-furnace unit (LFU) depend on their implementation
The most important parameters for controlling the intensity and completeness of the processes occurring at this stage are the basicity of the slag and metal oxidation ([O]Me)
In our studies, aimed at developing a method for continuous monitoring of metal oxidation, we used an automated system for monitoring electrical parameters that we developed and a method for determining the constant component of an electric arc
Summary
The most important parameters for controlling the intensity and completeness of the processes occurring at this stage are the basicity of the slag (in practice, Vsl = CaO/SiO2 is mainly used) and metal oxidation ([O]Me). Three processes occur almost simultaneously: the foamy slag formation, molten metal carburization for its subsequent mixing during oxidation (“bubbling”) and the oxidation of harmful impurities contained in the melt by blowing it with oxygen.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
