Effects of B₂O₃ on Properties of Low Fluoride Content Mould Flux for Thin Slab Continuous Casting

Abstract:

In order to reduce fluorine pollution, partial fluoride could be replaced by B₂O₃ in mould flux. The effects of B₂O₃ on properties of low fluoride content mould flux for thin slab continuous casting were studied. The properties included melting temperature, viscous characteristics, fluidity, surface tension and Al₂O₃ inclusion adsorption. The results showed that with the increase of B₂O₃ content, melting temperature, viscosity, viscous activation energy and surface tension of mould flux decreased obviously, fluidity increased, and Al₂O₃ inclusion adsorption of mould flux changed little. The B₂O₃ could play effective role when its content was less than 6%. The results would play a guiding role in designing of low fluoride content mould flux for thin slab continuous casting.

• Periodical: Advanced Materials Research (Volumes 233-235)
• Pages: 805-808
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.233-235.805
• Online since: May 2011
• Authors: Yan Qing Lu, Guo Dong Zhang, Mao Fa Jiang
• Keywords: B₂O₃, Low Content Fluoride, Mould Flux, Thin Slab Continuous Casting

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