FIELD: metallurgy.
SUBSTANCE: invention relates to foundry field. Embedded part contains external circular surface, closed inside the metal of cast during casting, allowing multitude of projections, each of which is implemented with narrowed shape. Height of projections is from 0.5 mm up to 1.5 mm, number of projections per 1 cm2 of external circular surface is from 5 up to 60. External circular surface allows layer of metallic coating, formed by method of cold spraying. Embedded element can be used in the capacity of sleeve of block of cylinders of internal combustion engine cylinders.
EFFECT: achieved increasing of thermal conductivity of metallic coating layer.
16 cl, 12 dwg
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