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Thickness correcting method for millimeter wave antenna housing

A millimeter-wave antenna and cover wall technology, which is applied to other household appliances, household appliances, household components, etc., can solve problems such as high cost, unfavorable product development, and long cycle, so as to improve the pass rate of wave transmission and the repeatability of product performance Good, long-term effect

Inactive Publication Date: 2015-12-23
JIANGXI HONGDU AVIATION IND GRP
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AI Technical Summary

Problems solved by technology

Compared with the uncertainty of the product status and the small number of samples in the initial stage of product development, these two production methods are high-cost and long-term, which is not conducive to product development

Method used

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Examples

Experimental program
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Embodiment Construction

[0012] Below with example the present invention is described in further detail.

[0013] The material of the millimeter wave radome is EW210 glass cloth and HY2001 resin, the design wall thickness is (2±0.1) mm, and the wave transmission rate is required to be not less than 80%. The production method is as follows:

[0014] (1) Making prepregs: dissolve HY2001 resin and coat them on EW210 glass cloth and QW140B quartz cloth respectively to obtain EW210 / HY2001 prepregs and QW140B / HY2001 prepregs, the glue content is (40±3) %;

[0015] (2) After the EW210 / HY2001 prepreg is dried, it is cut according to the unfolded sample of the radome, and then laid in the female mold, a total of 11 layers;

[0016] (3) Make a vacuum airtight bag on the surface of the radome blank in the female mold according to the requirements of autoclave molding; conduct airtightness inspection: when the vacuum pressure is not lower than -0.092MPa, the vacuum pressure within 10 minutes after stopping the ...

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PUM

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Abstract

The invention provides a thickness correcting method for a millimeter wave antenna housing. The thickness correcting method is characterized in that firstly, after resin is dissolved, glass cloth is coated with the resin, glass cloth prepreg is manufactured, or after the resin is dissolved, quartz cloth is coated with the resin, and quartz cloth prepreg is manufactured; then, an antenna housing blank is formed through a female die and autoclave molding technology, then the thickness of the wall of the housing is measured, multiple layers of quartz cloth prepreg are laid to enable the thickness of the wall of the housing to reach the regulated wall thickness, and finally a correction layer is cured. The manufactured millimeter wave antenna housing does not need to be ground, the working intensity of manufacture personnel is lowered, the repeatability of product performance is good, and the wave-transparent percent of pass is increased.

Description

technical field [0001] The invention relates to a manufacturing method of a millimeter-wave radome, which is a simple thickness correction method for manufacturing an EW210 / HY2001 millimeter-wave radome by adopting an autoclave die forming technology, and belongs to a resin-based composite material radome / radome autoclave Molding manufacturing technology field. Background technique [0002] Resin-based composite material radome / radome is a functional structural part that integrates electrical performance, structural strength and rigidity, aerodynamic shape and special functional requirements, and is widely used in aerospace and other fields. The thickness tolerance of the millimeter-wave radome made of resin-based composite materials has an important impact on the wave-transmitting performance of the radome. Manufacturers use RTM (resin transfer molding) molding technology, autoclave molding technology and high-precision mechanical grinding to ensure The thickness tolerance...

Claims

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Application Information

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IPC IPC(8): B29C70/48B29L31/34
CPCB29C70/48B29L2031/3456
Inventor 陈小丽殷芳
Owner JIANGXI HONGDU AVIATION IND GRP
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