METHOD OF PRODUCING RECOVERABLE ANTIFRICTION AND WEAR-RESISTANT COAT FOR MACHINERY ASSEMBLY UNITS AND PARTS Russian patent published in 2009 - IPC C23C24/02 C23C26/00 F16C33/14 

FIELD: chemistry.

SUBSTANCE: invention relates to mechanical engineering. The proposed method of producing recoverable antifriction and wear-resistant coat for machinery assembly units and parts consists in arranging a ground mineral composition between the surfaces of to make an antifriction coat. Mineral oil and/or grease, e.g. Litol-24 is used as a binder. The aforesaid ground mineral composition is made up of the following compounds, wt %, 20 to 50 of Antigorit (Mg, Fe₂)₃Si₂O₅(OH)₄, 20 to 40 of Lizardite Mg₃Si₂O₅(OH)₄, 1 to 25 of periclase MgO, 1 to 7 of Shungite CaWO₄ and 5-14 water. Note that the aforesaid ground mineral compound is mechanically activated with its binder in the ratio of 0.03-3%. After extra processing of the ground mineral composition for 10-150 min and formation of a film, the said composition is subjected to stabilisation for 12-60 hours to provide for increase in strength and optimum recovery of the assembly unit geometry.

EFFECT: longer life, higher wear resistance, longer storage term thanks to wear resistant film formed on friction surfaces.

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