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Self-positioning narrow-side bridge waveguide and vacuum brazing technology thereof

A brazing process and self-positioning technology, applied in waveguides, waveguide-type devices, circuits, etc., can solve problems such as deformation, and achieve the effect of enhancing corrosion resistance, overcoming waveguide corrosion, and reducing the number of parts

Inactive Publication Date: 2014-07-16
CHENGDU JINJIANG ELECTRONICS SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a self-positioning combined cover plate and cavity to form a combined vacuum brazing process, thereby improving the accuracy of the entire waveguide, and overcoming the problem of waveguide deformation caused by flame welding. The waveguide after vacuum brazing is electrochemically treated to enhance the corrosion resistance of the waveguide. Self-positioning narrow-side bridge waveguide and its vacuum brazing process

Method used

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  • Self-positioning narrow-side bridge waveguide and vacuum brazing technology thereof
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  • Self-positioning narrow-side bridge waveguide and vacuum brazing technology thereof

Examples

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Effect test

Embodiment 1

[0064] [Example 1] Self-positioning narrow-side bridge waveguide vacuum brazing process, such as Figure 4 shown, it includes the following steps

[0065] S1: Complete the mechanical processing of cover plate 1 and cavity 2 according to the design;

[0066] S2: Perform surface treatment on the machined cover plate 1 and cavity body 2 respectively;

[0067] S3: making brazing material, making brazing material according to the size of the contact surface combined with cover plate 1 and cavity body 2, and assembling the brazing material on cavity body 2, and assembling cover plate 1 and cavity body 2;

[0068] S4: Vacuum brazing, fix the assembled waveguide on the fixture, put it into a vacuum aluminum brazing furnace for vacuum brazing, complete the vacuum brazing when the brazing temperature in the vacuum aluminum brazing furnace is 615°C, and then furnace cooling;

[0069] S5: Perform further numerical control processing on the shape of the waveguide and the flange, drill h...

Embodiment 2

[0092] [Example 2] Self-positioning narrow-side bridge waveguide vacuum brazing process, such as Figure 4 shown, it includes the following steps

[0093] S1: Complete the mechanical processing of cover plate 1 and cavity 2 according to the design;

[0094] S2: Perform surface treatment on the machined cover plate 1 and cavity body 2 respectively;

[0095] S3: making brazing material, making brazing material according to the size of the contact surface combined with cover plate 1 and cavity body 2, and assembling the brazing material on cavity body 2, and assembling cover plate 1 and cavity body 2;

[0096] S4: Vacuum brazing, fix the assembled waveguide on the fixture, put it into a vacuum aluminum brazing furnace for vacuum brazing, complete the vacuum brazing when the brazing temperature in the vacuum aluminum brazing furnace is 615°C, and then furnace cooling;

[0097] S5: CNC further processes the shape of the waveguide and the flange, drills holes and reams the flange...

Embodiment 3

[0120] [Example 3] Self-positioning narrow-side bridge waveguide vacuum brazing process, such as Figure 4 shown, it includes the following steps

[0121] S1: Complete the mechanical processing of cover plate 1 and cavity 2 according to the design;

[0122] S2: Perform surface treatment on the machined cover plate 1 and cavity body 2 respectively;

[0123] S3: making brazing material, making brazing material according to the size of the contact surface combined with cover plate 1 and cavity body 2, and assembling the brazing material on cavity body 2, and assembling cover plate 1 and cavity body 2;

[0124] S4: Vacuum brazing, fix the assembled waveguide on the fixture, put it into a vacuum aluminum brazing furnace for vacuum brazing, complete the vacuum brazing when the brazing temperature in the vacuum aluminum brazing furnace is 615°C, and then furnace cooling;

[0125] S5: Perform further numerical control processing on the shape of the waveguide and the flange, drill h...

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Abstract

The invention discloses a self-positioning narrow-side bridge waveguide and a vacuum brazing technology thereof. The self-positioning narrow-side bridge waveguide comprises a cover plate (1), a cavity (2) and a flange (3), wherein the flange (3) comprises an upper flange body and a lower flange body, the upper flange body and the cover plate (1) are formed integrally, the lower flange body and the cavity (2) are formed integrally, bosses (4) are arranged around the cover plate (1), grooves (5) matched with the bosses (4) are formed around the cavity (2), and the cover plate (1) and the cavity (2) are welded together through vacuum brazing. Due to the adoption of the vacuum brazing technology in which the cover plate and the cavity are combined in a self-positioning mode, the accuracy of the whole waveguide is improved, the problem of deformation of the waveguide caused by flame welding is solved, and the corrosion resistance of the waveguide is improved due to the fact that electrochemical treatment is conducted on the waveguide subjected to vacuum brazing.

Description

technical field [0001] The invention relates to a narrow-side electric bridge waveguide and its vacuum brazing process, in particular to a self-positioning narrow-side electric bridge waveguide and its vacuum brazing process. Background technique [0002] A waveguide is a structure used to confine or guide electromagnetic waves, used in radio communications, radar, navigation and other radio fields. The current bridge waveguide manufacturing process used by microwave device manufacturers is usually to divide the standard waveguide into waveguide A12, waveguide B13, sealing plate A14, sealing plate B15 and sealing plate C16, and waveguide A12 and waveguide B13 are welded together , the sealing plate A14 is welded on the rear end of the waveguide B13, the sealing plate B15 is welded on the outer end surface of the waveguide B13, the sealing plate C16 is welded on the outer end surface of the waveguide A12, and the flange 11 is respectively welded on the waveguide A12 and the ...

Claims

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Application Information

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IPC IPC(8): H01P5/00H01P3/12
Inventor 杨芹粮黄东涂学明陈忠宁春颖刘俊杰
Owner CHENGDU JINJIANG ELECTRONICS SYST ENG
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