Abstract

ABSTRACTTundish is the last refractory vessel in the steelmaking process. The fluid phenomena in tundish have a strong effect on the separation of non-metallic inclusions. In this paper, a new inclusion removal approach using powder injection through the shroud has been proposed and the devices have been set up. The plant trials have been carried out and the ruling factors have been analysed. The results indicate that this novel technique is beneficial to separate the small non-metallic inclusion removal from the molten steel. Compared with conventional inclusion removal technology, the number of the oxide inclusions can be decreased to a lower level and the inclusion becomes finer.

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