FIELD: chemistry.
SUBSTANCE: invention relates to protection of metals from corrosion and can be used for protection of tubing from corrosion and erosive action of medium. Method of applying anticorrosive protective coating on internal surface of tubing string involves preliminary cleaning of surface and subsequent application of layers of protective coating, wherein after preliminary cleaning, a layer of silicon with thickness of 0.2–3.0 micron is applied to the inner surface of the pipe by impact-kinetic method, and a natural oxide film of silicon oxide is coated with a layer of porous silicon oxide with pore size of 10–100 mcm using alkali and powdered silicon oxide at temperature of 200–300 °C, the prepared porous layer is impregnated with a polymer composition and subjected to finishing temperature treatment.
EFFECT: technical result is creation of anticorrosive wear-resistant coating with high adhesion, long service life and high chemical resistance.
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