FIELD: nonferrous metallurgy. SUBSTANCE: silumin melt is treated by copper phosphite jointly with boric acid and iron and nickel oxides in quantity 0.4- 2.0, 0.1-0.15, 0.2-2.0, and 0.2-2.0 on melt weight, respectively, for 20 to 30 min. EFFECT: optimized modification procedure. 1 tbl
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