Airplane integral fuel tank sealing leakage repairing method
An integrated fuel tank and aircraft technology, applied in the field of aircraft maintenance, to achieve the effects of good processing technology, guaranteed attendance, and convenient operation
Pending Publication Date: 2022-05-13
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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Problems solved by technology
[0006] The purpose of this application is to provide a method for repairing the seal leakage of the integral fuel tank of an aircraft, so as to solve or alleviate at least one problem in the background technology
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[0029] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application.
[0030] This application proposes a method for repairing seal leakage of the overall fuel tank of an aircraft, which is given through the typical sealing forms of the occasional partial leakage parts of the overall fuel tank of the aircraft—such as sealing of the joint surface, sealing outside the seam, and rivet sealing. A reasonable repair method to effectively ensure the safe use of the aircraft, thereby maximizing the attendance rate of the aircraft.
[0031] like figure 1 As shown, the seal leakage repair of the overall fuel tank of the aircraft provided by this application mainly covers the seal leakage repair of the joint surface, the seal leakage repair outside the seam, and the rivet leakage repair. ...
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Abstract
The invention provides a method for repairing sealing leakage of an integral fuel tank of an airplane, which is suitable for repairing sealing leakage of a binding surface, repairing sealing leakage outside a seam and repairing leakage of a rivet in the integral fuel tank of the airplane, and comprises the following steps of: determining a sealing leakage part of the integral fuel tank of the airplane; the sealing leakage part of the whole fuel tank of the airplane is subjected to local leakage sealing repair through a sealant, and the used sealant is a sealant compatible with a sealing system; and when the sealing leakage part of the integral fuel tank of the airplane is in local leakage, the failure sealant is removed before the local leakage sealing repair, the structure is not damaged, and when an oxide film on the surface of the structure is damaged, repair processing treatment is carried out. According to the leakage treatment method for the overall fuel tank of the airplane, the overall fuel tank of the airplane can be rapidly repaired, the airplane parking period is shortened, the treatment manufacturability is good, operation is convenient, the maintenance strategy is reasonable, and the attendance rate of the airplane is guaranteed to the maximum extent.
Description
technical field [0001] The application belongs to the technical field of aircraft maintenance, and in particular relates to a method for repairing seal leakage of an overall fuel tank of an aircraft. Background technique [0002] Most modern aircraft use integral fuel tanks. By designing a part of the fuselage and wing load-bearing structure as a structural fuel tank that can store fuel, it can not only make full use of the structural space to hold more fuel, increase the range and endurance of the aircraft, but also Reduce aircraft weight. The integral fuel tank is usually made of aluminum alloy, titanium alloy or composite material, and the overall rigidity is relatively good. Allow for any minor leaks to occur. The sealing material of the overall fuel tank is applied to the joint surface of the wall plate, the angle, the fastening bolt and other gaps, and it is firmly and stably bonded with the wall plate and the bolt to prevent the leakage of aircraft fuel. Key materi...
Claims
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Login to View More IPC IPC(8): B64F5/45
CPCB64F5/45
Inventor 邢祎琳陈蓬刘刚卫改侠
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA