ANTISCUFF COATING FOR THREADED JOINT OF PUMP-COMPRESSOR AND CASING TUBES AND METHOD OF ITS PRODUCTION Russian patent published in 2017 - IPC C09D179/08 C09D127/18 C09D7/14 B05D7/24 C10M161/00 F16L15/04 

FIELD: chemistry.

SUBSTANCE: antiscuff coating is made from the composition, containing the following components (in weight percent): the organic binder of 30%-60%, the solid lubricant of 30%-60%, the corrosion inhibitor of 6%-15%, the levelling agent of 0.01%-0.1%, the wetting agent 0.01%-0.1% and in addition the mixture of solvents. The organic binder is the liquid polyamide-imide resin with the solids content of 38-42%. The solid lubricant is any substance from the molybdenum disulphide and tungsten disulphide or the combination of molybdenum disulphide or tungsten disulfide with polytetrafluoroethylene. Preferably, the solid lubrication and the corrosion inhibitor are the surface-modified with the silane bonding agent. The antiscuff coating is obtained by spraying the coating on the surface of the threaded joint of pump-compressor and casing tubes, treated with phosphate; thus avoiding the environmental contamination with the heavy metal powder, contained in the threaded grease.

EFFECT: production of coatings that have good antiscuff and anticorrosive properties.

7 cl, 8 dwg, 16 ex