LUBRICANT CORE-COMPOSITION FOR REDUCING WEARING IN WHEEL FLANGE-RAIL FRICTION COUPLE Russian patent published in 2009 - IPC B61K3/00 C10M169/00 C10M101/00 C10M125/00 

FIELD: chemistry.

SUBSTANCE: invention relates to lubricating compositions, particularly to compositions for lubricating friction couples, and can be used in mechanical engineering for lubricating friction assemblies, as well as in various mechanisms and machines for increasing interrepair time. The lubricant core-composition has coating, made from epoxy adhesive "ЭДП" with serpentinite additives Mg₆{Si₄O₁₀}(OH)₈ of technical furnace electroconductive carbon and fluoroplastic F-4. The coating of the lubricant core contains filler, which contains Litol-24 lubricant, serpentinite Mg₆{Si₄O₁₀}(OH)₈ and thermolysis carbon at the following ratio of components, wt %: coating: serpentinite Mg₆{Si₄O₁₀}(OH)₈ - 1.0-2.0; technical furnace electroconductive carbon - 0.1-0.2; polytetrafluorethylene in form of powdered fluoroplastic F-4 - 0.2-0.4; epoxy adhesive "ЭДП" - the rest; filler: serpentinite Mg₆{Si₄O₁₀}(OH)₈ - 1.0-2.0; thermolysis carbon - 0.1-0.2, consistent lubricant Litol -24 - the rest.

EFFECT: higher efficiency of the lubricant core-composition due to increase of its adhesive and antifriction properties, which reduces wearing in the wheel flange-rail friction couple.

2 cl, 1 tbl