METHOD OF PRODUCING HIGH-TEMPERATURE HEAT-SHIELDING COATING Russian patent published in 2019 - IPC B05D1/38 B32B27/20 B32B27/24 B32B27/26 C09D183/04 

FIELD: construction; cosmonautics; oil industry; chemistry.

SUBSTANCE: invention relates to methods of protecting surfaces from high temperatures and can be used in heat engineering, construction, oil and gas, chemical and space industries. Method of producing high-temperature heat-insulating coating, comprising applying on surface of article several layers of polymer composition containing binder and filler, with intermediate drying of each layer and final thermal treatment of coating, is characterized by that before applying polymer composition on prepared surface of article by applying a brush at temperature 15÷30 °C is applied 20÷30 mcm of adhesive layer based on sublayer P-11, made from polymer composition component, allowing to compensate for its homogeneity and obtain adhesion strength between components of composition and to article surface, followed by air drying at 15÷30 °C for 40÷60 minutes, simultaneously with application of adhesive layer in mixer, polymer composition containing low-molecular polymer "Styrosil", fillers, diluent-compensator of sub-layer P-11, in which, with constant stirring, before use, solvent and hardener - catalyst are introduced, the obtained composition is applied layer-by-layer onto an article with minimum layer thickness of 0.15÷0.20 mm and with interlayer exposure 15÷20 minutes, with subsequent adaptation of coating for 3÷4 hours at temperature 18÷35 °C and heat treatment at temperature of 50÷60 °C for 5 hours. Invention objective is to provide high operational reliability of the heat-insulating coating of refractory products at high operating temperatures (up to 1100 °C) due to increase in adhesion strength between components of composition of FCD and the same FCD to article surface, exclusion of flows and laps, as well as reduction of process time of FF application.

EFFECT: method of obtaining high-temperature fuel refinery at relatively high manufacturability and low labour input provides higher physical and mechanical properties of the refined product, control of thickness of applied layers and, as a result, final thickness of GF on articles of different geometric shape.

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