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| Corrosion Protection Design of Aircraft Ground Column in Marine Environment |
| Received:May 14, 2020 Revised:June 10, 2002 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.12.009 |
| KeyWord:electrical lap ground column corrosion protection design installation contact resistance |
| Author | Institution |
| ZHANG Chen-yu |
Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research institute, Jingmen , China |
| YUAN Meng |
Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research institute, Jingmen , China |
| LIU Yuan-hai |
Aviation Key Laboratory of Science and Technology on Structural Corrosion Protection and Control, China Special Vehicle Research institute, Jingmen , China |
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| Abstract: |
| The work aims to study the influence of marine environment on the anti-corrosion installation design of typical ground column. Three kinds of anti-corrosion installation methods were designed by taking the ground column installed in a semi-closed key part of type x aircraft as the research object, and accelerated corrosion tests were carried out under the laboratory environment spectrum. Different types of test pieces were detected and tested by means of macroscopic and microscopic tests and contact resistance tests. At the end of the 2 cycles of accelerated test in the laboratory, the contact resistance of the ground column with the direct installation mode could not be detected due to the corrosion of the ground column base. The ground column with the filling installation mode had a serious corrosion appearance, but its internal electrical contact was still kept. The ground column with the package-mounted mode was well protected internally by sealant. There are advantages and disadvantages of the three methods of ground column installation design, which can be selected according to the local environmental characteristics of the structure. |
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