METHOD FOR FORMING ANTIFRICTION COATING OF RUBBING SURFACES OF KINEMATIC PAIRS

摘要

FIELD: machine engineering, namely modification of rubbing surfaces of kinematic pairs.;SUBSTANCE: method comprises steps of placing between rubbing surfaces disintegrated mineral composition containing synthetic modification of serpentine produced by diluting in water mixture of α-quartz and magnesium hydroxide at temperature 120 - 170°C and pressure 1.2 - 15.0 at for further formation of crystals. Chrysotile having monocline syngony with coordination numbers 5.0 a 7.3A°, 9.0b 9.2A°, 7.0c 7.3A° and with angles β between positive directions of crystallographic axes 90° or 93° is used as seed for producing crystal of synthetic modification of serpentine. Summed value of molar masses of α-quartz and magnesium hydroxide corresponds to molar mass of synthetic modification of serpentine. Composition includes in addition homologs of fullerenes C_m where m ≥ 60 at next relation of components, mass %: synthetic modification of serpentine, 70 - 90; homologs of fullerenes C_m, 10 - 30. Invention allows to form coating with receive friction factor lowered to 0.001, increased hardness HRC 90 - 95.;EFFECT: enhanced wear resistance, increased useful life period of coating, possibility for realizing method with use of oil lubricant and also without any lubricant.;3 ex