METHOD OF RESTORING FRICTION SURFACES Russian patent published in 2017 - IPC C23C26/00 C10M125/10 

FIELD: physics.

SUBSTANCE: invention relates to triboengineering and can be used for in-place restorative repair, prevention of wear of working surfaces of machine parts susceptible to wear, such as piston assemblies, bearing friction pairs and pinion units. The method of restoring friction surfaces of a metal article with an oil reservoir includes preparation of a powder mixture consisting of dispersed particles with size of 200 to 300 nm and having the following ratio of components, wt %: antigorite (Mg₆Si₄O₁₀(OH)₈) 10-20, lizardite (Mg₃Si₂O₅(OH)₄) 10-30 and chrysotile (Mg₆Si₄O₁₀(OH)₈) 40-90, and placing said powder mixture in oil. From said powder mixture placed in oil, a modifier composition is obtained, which is fed into the oil reservoir of the article. Said oil is used with viscosity of 20 to 30 cSt, and said powder mixture additionally contains chrysotile.

EFFECT: invention increases periods between routine restorative works, reduces costs on restorative repair and improves operating efficiency of the article, and prolongs operating time of the lubricating material without replacement.