FIELD: metallurgy.
SUBSTANCE: slag is supplied onto surface of liquid steel in intermediate ladle. Thermo insulating mixture of 40-100 mm thickness is supplied on the surface of slag and it is maintained in a solid state during casting. The thermo insulating mixture contains, mass %: inflated pearlite and/or vermiculite - 30-50, carbon containing element (broken particles of periclase-carbonic items and/or lamellate graphite waste of blast furnaces or converter shops and/or natural graphite) - 10-30, organic biogenic element (wheat husks and/or sunflower husks, and/or peat, and/or slate coals) - 20-60. Thus thermo insulation of metal surface and its protection from oxidation and carbonisation are provided.
EFFECT: reduced consumption of thermo insulating mixture and reduced wear of intermediate ladle lining.
2 cl, 1 tbl, 3 ex
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