Efficiency of using cored wire with different fillers to treat steel made in electric furnaces

Kablukovskii, A. F.; Yaburov, S. I.; Никулин, А. Н.; Uimanov, V. A.; Molchanov, O. E.; Zinchenko, S. D.; Baldaev, B. Ya.

doi:10.1007/bf02511769

Cited by 1 publication

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“…To ensure good performance of steel product, the cored-wire feeding technology has been widely used to improve the cleanliness of molten steel and accurately control the alloy's component in steelmaking process [1,2]. The argon bottom blowing method was applied to enhance the mixing efficiency by stirring the molten steel, such as in the LF refining treatment [3,4]. However, there is still no effective approach to real-time monitor the state of molten steel and its property variation, so that it is difficult to assess and control the mixing efficiency [5,6].…”

Section: Introductionmentioning

confidence: 99%

Heat transfer of calcium cored wires and CFD simulation on flow and mixing efficiency in the argon-stirred ladle

Huang

Yang

Sun

et al. 2017

Ironmaking & Steelmaking

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A three-dimensional CFD simulation model of 160-tonne LF ladle based on gas-liquid multiphase flows and k-ε mixture turbulence model was developed on FLUNET platform considering the agitation effect of argon blowing on the mixing performance of gaseous calcium in the liquid steel. Taking the volume fraction of gaseous calcium mixed in the molten steel as the quantified indicator of mixing efficiency, the flow field in the bottom argon-stirred ladle and the influence of cored-wire feeding position, feeding depth, feeding velocity, argon flow on the mixing efficiency were investigated. By utilising the element birth and death technique on MSC.MARC platform, the transient heat transfer between the calcium cored wire and the molten steel was simulated, and the effect of the feeding speed and the wire structure on the evaporation depth of the calcium was presented.

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