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Self-positioning stepped twisted waveguide and its vacuum brazing process

A brazing process and twisted waveguide technology, applied in the direction of waveguides, waveguide-type devices, electrical components, etc., can solve the problems of difficult control of waveguide rotation angle, difficulty in ensuring the dimensional accuracy of parts, and high technical requirements for technicians, so as to ensure brightness and compactness , improve assembly accuracy, and overcome the effect of large deformation

Inactive Publication Date: 2017-01-04
CHENGDU JINJIANG ELECTRONICS SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the processing of stepped twisted waveguides is mainly to arrange the waveguides according to a certain rotation angle and perform multiple times of flame welding. The above processing method requires multiple times of flame welding. Therefore, the waveguide part will be affected by flame heating, resulting in body deformation, and it is difficult to control the rotation angle of the waveguide, and it is difficult to guarantee the dimensional accuracy of each part. Moreover, since the multiple flame brazing process requires the use of highly corrosive fluorine-containing flux, after the brazing is completed, the fluorine-containing flux will remain In the waveguide, it is difficult to completely remove the fluorine-containing flux remaining in the waveguide. Therefore, the fluorine-containing flux remaining in the waveguide will corrode the waveguide, thereby reducing the corrosion resistance of the waveguide and greatly shortening the waveguide. service life
At the same time, due to multiple times of flame welding, the production cycle is long, the production efficiency is low, and the technical requirements for technicians are high.

Method used

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  • Self-positioning stepped twisted waveguide and its vacuum brazing process
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  • Self-positioning stepped twisted waveguide and its vacuum brazing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] [Embodiment 1] The self-positioning stepped twist waveguide vacuum brazing process comprises the following steps:

[0059] S1: Complete the machining of the cover plate, bottom plate and assembly plate according to the design;

[0060] S2: Surface treatment is carried out on the machined cover plate, bottom plate and assembly plate respectively;

[0061] S3: Make brazing material, make brazing material according to the outer dimensions of the cover plate, bottom plate and assembly plate, spread the prepared brazing material on the corresponding positions of the cover plate, bottom plate and assembly plate, and complete the cover plate, bottom plate and assembly plate assembly;

[0062] S4: Vacuum brazing, the assembled waveguide is put into the vacuum aluminum brazing furnace together with the fixture for vacuum brazing. The specific steps are:

[0063] S41: The vacuum aluminum brazing furnace performs the first rough vacuuming;

[0064] S42: Vacuum aluminum brazing ...

Embodiment 2

[0085] [Example 2] Self-positioning stepped twist waveguide vacuum brazing process, which includes the following steps:

[0086] S1: Complete the machining of the cover plate, bottom plate and assembly plate according to the design;

[0087] S2: Surface treatment is carried out on the machined cover plate, bottom plate and assembly plate respectively;

[0088] S3: Make brazing material, make brazing material according to the outer dimensions of the cover plate, bottom plate and assembly plate, spread the prepared brazing material on the corresponding positions of the cover plate, bottom plate and assembly plate, and complete the cover plate, bottom plate and assembly plate assembly;

[0089] S4: Vacuum brazing, the assembled waveguide is put into the vacuum aluminum brazing furnace together with the fixture for vacuum brazing. The specific steps are:

[0090] S41: The vacuum aluminum brazing furnace performs the first rough vacuuming;

[0091] S42: Vacuum aluminum brazing f...

Embodiment 3

[0112] [Embodiment 3] The self-positioning stepped twist waveguide vacuum brazing process comprises the following steps:

[0113] S1: Complete the machining of the cover plate, bottom plate and assembly plate according to the design;

[0114] S2: Surface treatment is carried out on the machined cover plate, bottom plate and assembly plate respectively;

[0115] S3: Make brazing material, make brazing material according to the outer dimensions of the cover plate, bottom plate and assembly plate, spread the prepared brazing material on the corresponding positions of the cover plate, bottom plate and assembly plate, and complete the cover plate, bottom plate and assembly plate assembly;

[0116] S4: Vacuum brazing, the assembled waveguide is put into the vacuum aluminum brazing furnace together with the fixture for vacuum brazing. The specific steps are:

[0117] S41: The vacuum aluminum brazing furnace performs the first rough vacuuming;

[0118] S42: Vacuum aluminum brazing ...

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Abstract

The invention discloses self-positioning stepped twisted waveguide and a vacuum brazing process thereof. The self-positioning stepped twisted waveguide comprises a cover plate (1), a bottom plate (2) and a cavity (3) installed between the cover plate (1) and the bottom plate (2). The cavity (3) is formed by a plurality of assembling plates which are mutually buckled, each assembling plate is provided with a transmission port, the transmission ports are obliquely arranged in the assembling plates, and inclination angles increase progressively and sequentially or decrease progressively and sequentially; the outer side of the port of the cover plate (1) and the outer side of the port of the bottom plate (2) are respectively provided with a flange plate (4), one side of the frame wall of each assembling plate is provided with a groove (6), and the other side of the frame wall of each assembling plate is provided with a boss (7) matched with the corresponding groove (6). According to the self-positioning stepped twisted waveguide, the assembling plates which are mutually buckled are adopted and are provided with the transmission ports at different inclination angles so that the cavity of the twisted waveguide is formed; the transmission ports of the assembling plates are combined together to form an inner cavity of the cavity of the twisted waveguide so that the stepped inner cavity can be formed; because the cavity is divided into multiple assembling plates, rotating angles of the twisted waveguide can be easily controlled.

Description

technical field [0001] The invention relates to a self-positioning stepped twisted waveguide and its vacuum brazing process. Background technique [0002] The step twist waveguide is a waveguide element used to change the polarization plane. It adopts the principle of waveguide transmission hopping so that only the main mode is transmitted in the waveguide, thereby reducing reflection, loss, and reducing the volume of the waveguide. Therefore, the step twist Waveguides are widely used in microwave transmission applications. At present, the processing of stepped twisted waveguides is mainly to arrange the waveguides according to a certain rotation angle and perform multiple times of flame welding. The above processing method requires multiple times of flame welding. Therefore, the waveguide part will be affected by flame heating, resulting in body deformation, and it is difficult to control the rotation angle of the waveguide, and it is difficult to guarantee the dimensional...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/12H01P11/00B23K1/008B23P15/00
Inventor 陈忠涂学明杨芹粮廖东波杨琴
Owner CHENGDU JINJIANG ELECTRONICS SYST ENG
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