Tae Sung Kim, Lauri Holappa
It is an important issue to prevent molten steel in tundish from being reoxidized during continuous casting process for improving the cleanliness of steel products. Rice husk ash (RHA) is an excellent insulation powder to prevent heat loss of the molten steel in the tundish. The addition of RHA increases the silica activity in molten slag layer, which can cause reoxidation of molten steel. Therefore, the effect of calcium aluminate-based flux (CA-flux) on reoxidation behavior was investigated with different ratios of CA-flux to RHA+CA-flux (=RCA). The silicon and oxygen pick-up, which is caused by the self-dissociation of silica at the slag-metal interface was suppressed with increasing RCA, and hence the number of inclusions formed by reoxidation in the molten steel was reduced at high RCA. The evolution of inclusions with different RCA was investigated in detail, providing insights into the reoxidation mechanisms and the efficacy of CA-flux in minimizing inclusion formation during the continuous casting process.
@article{198fdbd1-d312-441f-beed-2459779cae08,
title={Influence of calcium aluminate flux on r},
author={Tae Sung Kim and Lauri Holappa},
year={2026},
language={en}
}TY - JOUR TI - Influence of calcium aluminate flux on r AU - Tae Sung Kim AU - Lauri Holappa PY - 2026 LA - en ER -
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