Application of titanium flange in aviation and new aircraft
Release time:
2022-07-28 11:14
Source:
Design Cloud
Due to the special requirements of space vehicles in reducing structural weight and improving structural efficiency, the aviation and aerospace industry has always been the main object of the promotion and application of titanium alloys. Especially in the early development of titanium flanges, that is, the 1950 s, titanium flanges are almost entirely used in the manufacture of aircraft. Only since the 1960 s did it gradually expand to petroleum, chemical, shipbuilding, power stations and other departments. Today, it can still be said that the development of aviation and aerospace technology is the basic factor to promote the advancement of titanium flanges. In turn, the emergence of new materials also contributes to the development and application of new aircraft.
DueTitanium flangeIt is given priority to be applied in aero engines, replacing aluminum flanges and some stainless steel and high-strength steel to make the main components of the compressor, such as compressor rotor blades, discs, stator blades and casings, etc., to reduce structural weight, Improve the thrust-to-weight ratio. For example, the compressor of the early Soviet engine P11-300 equipped with MiG-2l was mainly steel structure, while the later improved P13-300 engine (equipped with MiG-21MF) fully adopted titanium compressor, which increased the thrust-to-weight ratio (the ratio of thrust generated by the engine to the gravity of the engine) from 5.38 to 5.83. In the 1970 s, the Soviet P29-300 engine (equipped with MiG -23S) further increased the amount of titanium, make the thrust-to-weight ratio reach 6.5. At present, the amount of titanium flange in the aero engine has been stable at 15 ~ 30%.
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