Painting Process and Performance of the Inner Surface of Cable-Fairing Assembly

Abstract

The cable-fairing assembly is an important part of the aircraft, which bears a large amount of aerodynamic and thermal loads during high-speed flight. The internal cable of such assembly is an important channel for information transmission between various systems and an important component to ensure signal input and output. In this paper, a painting process for the inner surface of cable-fairing assembly was discussed. The process flow contained spraying of inner thermal insulation layer, cable fixing and cable potting, which provided a process guarantee for the reliability of products. The performance test results of the cable-fairing assembly after painting showed that the shear strength of the thermal insulation coating on the inner surface, the mechanical properties of the potting body and the electrical properties of the cable all met the design index requirements.

Keywords

• cable-fairing assembly| inner surface| inner heat insulation layer| potting| painting process