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Auxiliary shaping technology method for completely cured aramid fiber honeycombs

A technology of aramid honeycomb and process method, which is applied to other household appliances, household appliances, household components, etc., which can solve the problems of high resilience of fully cured honeycomb, poor secondary molding effect, and inability to effectively shape the shape, so as to reduce honeycomb deterioration risk, reduce storage costs, and reduce preparation costs

Active Publication Date: 2020-03-24
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared to semi-cured honeycomb, the overmolding effect is poor
Especially when the height of the honeycomb is high and the honeycomb sandwich products with large curvature and double curvature are produced, the full-cured honeycomb has a large resilience, which makes it difficult for workers to operate and cannot be effectively shaped

Method used

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  • Auxiliary shaping technology method for completely cured aramid fiber honeycombs

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Experimental program
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Embodiment Construction

[0023] Below, combine figure 1 , the present invention will be further described.

[0024] A process method for fully curing aramid honeycomb assisted shaping, comprising steps:

[0025] S1. Prepare a mold, preset a semicircular configuration with curvature, and open a required configuration groove on the surface of the mold, and the surface shape of the configuration groove is consistent with the semicircular configuration;

[0026] S2. Prepare the front skin, pave the composite material prepreg in the configuration groove, and use an autoclave to perform hot pressing after paving to obtain the front skin;

[0027] S3. Prepare the sandwich core and cut the fully cured honeycomb. After cutting, the honeycomb is just completely fitted into the configuration groove, and the vertical pressure is always provided on the surface of the fully cured honeycomb, and the fully cured honeycomb is continuously pressed. In the configuration groove, the bottom surface of the honeycomb is c...

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Abstract

The invention discloses an auxiliary shaping technology method for completely cured aramid fiber honeycombs. Operation is easy, cost is low, and large-range application of the completely cured aramidfiber honeycombs to products with large curvatures and double curvatures is achieved. A rubber spraying method is adopted for carrying out auxiliary shaping on the completely cured aramid fiber honeycombs, temporary secondary shaping of the completely cured aramid fiber honeycombs is achieved, and workers carry out operation conveniently. The purpose of applying the completely cured aramid fiber honeycombs to the products with the large curvatures and the double curvatures is truly achieved.

Description

technical field [0001] The invention belongs to the technical field of antenna skin preparation, and relates to a process method for auxiliary shaping of a fully cured aramid fiber honeycomb. Background technique [0002] At present, due to its unique electrical properties, mechanical properties and extremely high dimensional stability, aramid honeycomb is widely used in airborne, shipborne and spaceborne radars, radar antenna feed functional structural parts, light antenna support structures, and overhead antenna cables. etc. have broad applications. There are two main types of aramid honeycomb, one is semi-cured prepreg honeycomb, the other is fully cured honeycomb, the glue inside the semi-cured honeycomb is in a semi-cured state, and can be cured and shaped after heating. Its cost is relatively high, and it needs to be stored in cold storage, and the storage period is only about 15 days. There is a high risk of material expiration. Moreover, the supply of semi-cured h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D99/00B29C70/34B29C70/54B29L31/34
CPCB29C70/342B29C70/54B29D99/0089B29L2031/3456
Inventor 易文清
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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