Radome and embedded metal ring connection structure and connection method

A technology of connecting structure and radome, applied in the direction of radiation unit cover and other directions, to achieve the effect of good sealing performance

Inactive Publication Date: 2018-05-15
THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a connection structure and connection method between the root of the radome and the embedd

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  • Radome and embedded metal ring connection structure and connection method

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[0008] The connection structure between the radome and the embedded metal ring, the radome 1 is made of composite material, there is a protrusion on the inner surface of the root of the radome 1, and there is a groove 2 matching the protrusion on the outer surface of the embedded metal ring 4, There is an adhesive 3 on the connecting surface of the two, and they are fixed to each other during the forming process of the radome 1 . There is also a threaded hole 5 on the outer end surface of the embedded metal ring 4 .

[0009] The connection method between the pre-embedded metal ring and the composite material radome at its root is: when the radome 1 is formed, the pre-embedded metal ring 4 is used as a part of the mold, and when demoulding, the pre-embedded metal ring 4 and the radome 1 are demoulded . In order to avoid the mismatch caused by inconsistent thermal expansion coefficients during the molding process, an adhesive 3 is applied between the radome 1 and the embedded m...

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Abstract

The invention belongs to the field of radome design, and particularly relates to a radome and embedded metal ring connection structure and a connection method, which can ensure root sealing and connection of the radome. The invention provides a connection structure for the radome at the root part and the embedded metal ring and a connection method, so as to solve the problems of radome root sealing and connection in a harsh use environment. During a radome processing process, the embedded metal ring is arranged at the root part of the radome of a composite material, and through the adhesive strength of the composite material itself and a high-temperature and high-pressure forming environment, fixing of structures of the two parts is completed. In order to increase the adhesive strength ofthe two parts, the contact area of the two parts needs to be increased, and a groove and a ridge are designed between the metal connection ring and the composite material radome body contact surface.An adhesive is applied to the contact surface between the composite material radome body and the metal ring to solve the problem of thermal match in the high-temperature forming environment, the sealing performance is good, and the structure and the method can be directly used for guiding design and production.

Description

technical field [0001] The invention belongs to the field of radome design, and in particular relates to a connection structure and a connection method between a radome and a pre-embedded metal ring, which ensure the sealing and connection of the root of the radome. Background technique [0002] In the structural design process of the composite material radome, in order to meet the interface requirements, a metal connection ring is usually designed at the root. There are generally two ways to connect the metal connecting ring and the composite material radome: bonding and screwing. [0003] In the marine environment, the sealing performance is strictly required. At the same time, due to the corrosiveness of the marine environment, adhesives and standard parts for screw joints need to have good corrosion resistance, which puts forward strict requirements on materials. In order to solve this problem, it is necessary to design a new connection method, which not only meets the ...

Claims

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Application Information

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IPC IPC(8): H01Q1/42
CPCH01Q1/42
Inventor 林丽辉
Owner THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
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