METHOD OF PREPARING COMPOSITION FOR RESTORING RUBBING SURFACES OF FRICTION COUPLES Russian patent published in 2003 - IPC

FIELD: friction control. SUBSTANCE: invention can be used for restoring metallic surfaces by forming antifriction materials thereon. For that, powder mixture is introduced into base oil at stirring to produce colloid solution in two steps. In the first step powder mixture includes Cu, K, Ca, Cr, Zn, S and MgCO₃. In the second step, added mixture includes Ti, Mn, Al₂O₃, Si, Mg₃Si₂O₅(H)₄, MgSiO₃, Fe×Fe₂O₃, SiO₂ and TiCO₃. After that, resulting colloidal solution is exposed, at stirring, to electromagnetic field with frequency 2400 to 130000 Hz for 35-39 min. EFFECT: reduced coefficient of friction for surfaces of materials with identical or different resistance. 1 tbl, 5 ex