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This document summarizes research into the formation of blowhole defects in continuously cast beam blanks at Dragon Steel. The main points are: - Blowholes form due to dissolved gases like hydrogen, nitrogen and oxygen exceeding their solubility limits during solidification and precipitating. - Sources of these gases include moisture in refractories, covering agents, and slag used in tundish preparation and casting. Improving oxygen removal is also important. - Gas analysis of blowholes showed the prima

Author

Jitendra Umaraliya

Language

EN