Abstract
The analysis of the main modern trends in the development of views on the issue of cleaning of the cooling channels of turbine blades in gas turbine engines in the process of manufacture and repair at military repair enterprises has been carried out; the usage of the method of thermo impulse treatment with detonating gas mixtures for cleaning of the cooling channels of turbine blades in gas turbine engines is proposed.
 Cleaning the cooling channels of turbine blades of modern gas turbine engines is one of the most complex processes in their manufacture and repair. At the manufacturing stage, the cleaning process is necessary to remove microparticles of ceramics and cutting chip that are produced during the formation of the output edges of the cooling.
Highlights
In modern conditions of armaments and military equipment development to maintain high combat readiness of aviation units, to ensure constant readiness of military aircraft to perform their tasks on time, timely and high-quality repair of aircraft engines RD-33 and AL-31F MiG-29 and SU-27 aircraft it is important
Repair of aircraft gas turbine engines in technical condition is difficult due to the lack of reliable information characterizing the real state of the surface of parts and units in the stages of demolition
With the destruction of hot gas turbine engine parts leading to flight events and accounting for approximately 70% of their total
Summary
In modern conditions of armaments and military equipment development to maintain high combat readiness of aviation units, to ensure constant readiness of military aircraft to perform their tasks on time, timely and high-quality repair of aircraft engines RD-33 and AL-31F MiG-29 and SU-27 aircraft it is important. At the repair stage – to remove products of high-temperature oxidation and sulfide corrosion Abrasive cleaning of cooling channels in the manufacturing process leads to impregnation of abrasive particles into the surface, which dramatically reduces the quality of protective coatings that are applied (Fig. 1) [1]. One of the possible solutions to this problem of cleaning the cooling channels is the use of thermal impulse treatment with detonating gas mixtures [6]. The use of this method is complicated by the fact that the diameter of the cooling channels of the blades, as a rule, is less than the critical value that allows flame propagation [7] This makes it impossible to use thermal impulse treatment of cooling channels in its traditional version. Arrhenius factors were used to determine the constants of forward and reverse reactions [11]: Fm
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