FIELD: ferrous metallurgy. SUBSTANCE: invention relates to intra-ladle modification of cast iron and can be used in casting production. Mixture comprises additionally carboxylic acid copper salt in the following ratio of components, wt.-%: carboxylic acid copper salt, 60-70; aluminum, 20-25; carbon, 10-15. Mixture is plated with paraffin. Invention provides enhancement of effectiveness in modifying agent availability, economy, improvement of ecology in modifying process and enhances strength of ingots. EFFECT: enhanced and valuable properties of mixture. 2 cl, 1 tbl, 1 ex
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