ON-LINE ANALYSIS OF MOLTEN STEEL IN CONVERTER

KOICHI CHIBA; AKIHIRO ONO; MASAO SAEKI; TAKAMASA OHNO; MASAO YAMAUCHI; MICHITAKA KANAMOTO

doi:10.2116/analsci.7.Supple_655

KOICHI CHIBA, AKIHIRO ONO, MASAO SAEKI, TAKAMASA OHNO, MASAO YAMAUCHI, MICHITAKA KANAMOTO

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Keywords: atomic emission spectrometry, direct analysis, on-line analysis, molten steel, converter, hotspot, hotspot radiation

JOURNAL FREE ACCESS

1991 Volume 7 Issue Supple Pages 655-658

DOI https://doi.org/10.2116/analsci.7.Supple_655

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Abstract

The atomic emissions of Fe, Mn, Ni, Cr, Cu, and Pb are identified in the hotspot radiation. The direct analysis method for molten iron in a converter is developed on the basis of the measurement of atomic emission in hotspot radiation. The analytical results obtained by this method is in fairly good agreement with those obtained by the conventional sampling method, and their correlation coefficient is 0.942. The manganese concentration in molten iron is sequentially determined for every 15 seconds. This method is applied to an on-line and real-tune analysis for molten iron in a converter.

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