COATING ON THE GAS TURBINE ENGINE BLADES APPLICATION METHOD Russian patent published in 2019 - IPC C23C14/30 F01D5/14 

FIELD: technological processes.

SUBSTANCE: invention relates to the field of coating in vacuum by the electron-beam method, specifically to the coatings on products with a complex profile application quality control and speed, namely, on the gas turbine engine (GTE) blades. Method comprises the predetermined temperature field provision on the GTE blades surface by means of a programmer, for setting up the software of which a control cartridge with GTE blades is placed in a vacuum sputtering chamber, at each of which root attachment and the airfoil control thermocouples are located, and performing the above-mentioned GTE blades heating in the vacuum chamber by the electron-beam gun electron beam scanning on the GTE blades surface. After the material supply into the vacuum coating chamber, performing the programmer software setting up. Performed during the said placed in the control cartridge blades heating scanning, is performed with the electron beam on the GTE blades surface scanning mode change to achieve temperatures corresponding to the temperatures at the reference thermocouples locations, and ensuring the GTE blades surfaces uniform heating and coating application on their surfaces. Then feeding the working cartridges with GTE blades with control thermocouples installed therein into the vacuum deposition chamber and performing the coating application by the electron beam scanning on the GTE blades surface according to the set program for a time limited by the applied layer given thickness and the coating deposition rate.

EFFECT: enabling reduction in the coating thickness deviations, the coating application rate stabilization, uniform, identical stable structure formation in the form of a layer with the same physicochemical properties over the workpiece entire surface, increase in the temperature measurement stability, reduction in the power consumption and an increase in the products mechanical properties.

1 cl, 3 dwg, 1 ex