ANTIFRICTION MATERIAL AND METHOD OF ITS PRODUCTION Russian patent published in 2012 - IPC C22C1/04 C22C21/00 B22F3/12 B22F1/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to powder metallurgy, particularly, to antifriction materials and methods of their production. Antifriction material comprises mix of metallic powders containing 18.0-22.0 wt % of tin and, aluminium making the rest, and powder serpentine of general formula Mg₃Si₂O₅(OH)₄ at the following ratio of components in wt %: mix of metallic powders 70.0-95.0, serpentine powder 5.0-30.0. To make antifriction material, mixed are tin powder with particle size smaller than 45.0 mcm in amount of 18.0-22.0 wt %, serpentine powder with particles size smaller than 10.0 mcm in amount of 5.0-30.0 wt %, while aluminium powder with particle size smaller than 20.0 mcm makes the rest. Said mix is compacted at 500-800 MPa and sintered in air at 135-200°C for 3-5 h.

EFFECT: higher tribotechnical properties.

2 cl, 2 tbl, 1 ex