FIELD: chemistry.
SUBSTANCE: invention relates to powder metallurgy, in particular to iron-based powder composition and composite lubricant used in it. Powder composition contains iron powder or iron-based powder and particles of composite lubricant. Particles of composite lubricant contain core with 10-60 wt % of, at least, one primary amide of fatty acid, which has more than 18 but not more than 24 carbon atoms, and 40-90 wt % of, at least, one bis-amide of fatty acid and nanoparticles of, at least one metal oxide coupled with core. Composite lubricant is obtained by mixing, at least, one primary amide of fatty acid and, at least, one bis-amide of fatty acid, mixture melting, charge crushing to form core of particles and its coupling with, at least, one oxide.
EFFECT: improvement of lubricant properties.
10 cl, 5 dwg, 8 tbl, 1 ex
