FIELD: foundry, in particular, production of cast iron ingots. SUBSTANCE: modifier contains silicon carbide and copper powder with particle size of 0.01-1.00 micron and cast iron chips with 0.5 mm fraction. Components are used in the following ratio, % by weight: silicon carbide 40-50; copper 10-20; cast iron chips the balance. Silicon carbide and copper powders are paraffin clad. EFFECT: increased efficiency and simplified composition. 2 cl, 1 tbl
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