Abstract In the present paper, two types of magnesia-based refractory bricks for wear lining a steel ladle furnace are considered, with aim comparing their ecological performances. The adopted methodology is Life Cycle Assessment (LCA) approach from cradle-to-gate brick product systems, in accordance European and International Standard EN ISO 14044:2006, chosen Impact (LCIA) ReCiPe 2016, consid...

Hydrogen removal of H-supersaturated liquid steel produced in a hydrogen-rich environment an industrial vacuum degasser (VD) is simulated here using two-phase (argon–steel) Eulerian model. The dehydrogenation efficiency evaluated for series ladle plug layouts and argon-purging modes. Increasing the number from prototype double-plug to four or slightly prolonging degassing time triple-plug enabl...

An ABB SVC Light® rated at 13.2 kV, 0-64 Mvar (capacitive) has been installed at the Gerdau plant in Charlotte, N.C., USA operating an electric arc furnace (EAF) with continuous charging for scrap-based steel production. The EAF, rated at 30/33 MVA, as well as a ladle furnace (LF) rated at 18 MVA are taking their power from a 100 kV supply grid. The fast control of SVC Light will improve the po...

Recently, a new method of a press casting using greensand mold was proposed by our group as a means of ferrous casting. This method has advantages in terms of energy savings and cost because a sprue cup and runner channel are not needed. Still, it is important to pour accurately and quickly in this method. Therefore, a feedforward outflow control is presented by using a mathematical model and i...