the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to metallurgy and u043bu0438u0442u0435u0439u043du043eu043cu0443 production, in particular to the development and use of combinations of complex modifiers mainly u0434u043bu00a0 with u0435u0440u043eu0433u043e cast iron. the purpose of u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 - working conditions by u0441u043du0438u0436u0435u043du0438u00a0 u043fu043eu0436u0430u0440u043eu0432u0437u0440u044bu0432u043eu043eu043fu0430u0441u043du043eu0441u0442u0438 modifier and increase hardness of cast iron in different u0441u0435u0447u0435u043du0438u00a0u0445 on u0430u043du0438u0437u043eu0442u0440u043eu043fu043du043eu0441u0442u0438 u0442u043bu0438u0432u043eu043a. composite modifier contains it.50 - 65%, silicon, barium, 20 - 35, - 0.05 - 0.5 - 2.0, aluminum 0.02 - 5.0 6.0, manganese, nickel, cobalt and / or 0.5 - 4.0, iron the rest. 2, table 2).
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