Airplane oil tank opening cap sealing method

A technology for aircraft fuel tanks and flaps, which is applied to the sealing of engines, fuel tanks of power units, and mechanical equipment, can solve the problems of inability to meet high temperature and fuel resistance, and achieve good high temperature resistance.

Inactive Publication Date: 2016-10-26
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the sealing materials used in the overall fuel tank of aircraft are polysulfide sealants, with a temperature range of -55 to 110°C and a maximum of 130°C, which cannot meet the needs of high temperature and fuel resistance.

Method used

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  • Airplane oil tank opening cap sealing method

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Embodiment Construction

[0015] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses an airplane oil tank opening cap sealing method. The airplane oil tank opening cap sealing method includes the steps that anticorrosive primer is smeared to an airplane oil tank opening cap, the opening cap smeared with the anticorrosive primer is smeared with first adhesive prime coat and aired, and the aired airplane oil tank opening cap is smeared with polysulfide sealant; an aluminum alloy opening frame of an airplane oil tank is smeared with the anticorrosive primer, and the gluing portion of the aluminum alloy opening frame smeared with the anticorrosive primer is painted with second adhesive prime coat and aired; the aluminum alloy opening frame painted with second adhesive prime coat is painted with fluorosilicone sealant; and the airplane oil tank opening cap and the aluminum alloy opening frame are combined, and sealant scraping and shaping treatment is conducted. By the adoption of the airplane oil tank opening cap sealing method, a manner that a polysulfide sealing layer and a fluorosilicone sealing layer are combined is adopted for connecting the opening cap with the opening frame, the manner has good high-temperature resistance, fuel oil resistance and low-temperature flexibility, and the opening cap can be used for a long time at the temperature from -55 DEG C to 180 DEG C.

Description

technical field [0001] The invention relates to the technical field of aircraft refueling, in particular to an aircraft fuel tank cap sealing method. Background technique [0002] At present, most of the sealing materials used in aircraft fuel tanks are polysulfide sealants, with a temperature range of -55 to 110°C and a maximum of 130°C, which cannot meet the needs of high temperature and fuel resistance. [0003] Therefore, it is desirable to have a technical solution to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art. Contents of the invention [0004] The object of the present invention is to provide a method for sealing an aircraft fuel tank cap to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. [0005] In order to achieve the above object, the present invention provides a method for sealing an aircraft fuel tank cap. The method for sealing an aircraft fuel tank cap comprises:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D37/06F16J15/14
CPCB64D37/06F16J15/14
Inventor 邢祎琳孙康唐蒙刘刚
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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