FIELD: metallurgy.
SUBSTANCE: invention can be applied in metal teeming with steel teeming ladle to intermediate ladle during continuous steel casting. Method involves protective gas feed under pressure of 0.4-0.6 MPa around metal stream. Protective gas jet is subjected to acoustic vibration at 100-4000 Hz frequency, which results in acceleration of protective gas diffusion into metal. Protective gas consumption comprises 100-10 l/minute.
EFFECT: secondary oxidation process is prevented, and therefore metal quality is improved.
1 dwg
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