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Special system for braze joint between radiator and collector of STWT (Spatial Travelling Wave Tube)

A special system and traveling wave tube technology, which is applied in the field of special systems for brazing connection between radiation radiators and collectors of space traveling wave tubes, can solve the problems of insulation performance decline, aging deterioration, device damage, etc., and achieve low thermal resistance of welding seams. , to avoid aging and deterioration, to avoid the effect of large changes

Active Publication Date: 2014-09-17
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the insulating silicone rubber exceeds its maximum operating temperature, it will age and deteriorate, and its insulation performance will decline.
Cause device damage and reduce service life

Method used

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  • Special system for braze joint between radiator and collector of STWT (Spatial Travelling Wave Tube)
  • Special system for braze joint between radiator and collector of STWT (Spatial Travelling Wave Tube)
  • Special system for braze joint between radiator and collector of STWT (Spatial Travelling Wave Tube)

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] The overall structure of the space traveling wave tube before brazing the radiant radiator, see figure 2 .

[0032] Such as image 3 Shown is a dedicated system of brazed connections between the radiant radiator of the present invention and the collector of a space traveling wave tube. The heat insulation device 8 divides the entire vacuum cavity into two cylindrical areas, A and B, the upper and lower cylindrical areas. The A area is a vacuum area without a heating device, and the B area is a vacuum area with a heating device. The brazed connection between the radiation radiator 4 and the space traveling wave tube collector 6 is in zone B, and the rest of the traveling wave tube is in zone A. When working, the vacuum degree of the two areas of A and B is ≤1.2×10 -3 Pa, the low vacuum is beneficial to get rid of the gas in the solder 7 during the brazing process, realize the full filling of the solder between the radiation radiator and the collector of the space tra...

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PUM

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Abstract

The invention discloses a special system for a braze joint between a radiator and a collector of an STWT (Spatial Travelling Wave Tube) and relates to an electron tube technology. The special system comprises a heating device, a heat insulation device and a cooling device. The system has the following beneficial effects: 1, a vacuum braze joint is achieved between the radiator and the collector of the STWT, solder is fully filled, and the thermal resistance of welding seams is low; 2, the magnetic steel of a spiral magnetic circuit part is kept at a highest service temperature, so that the performance of the magnetic steel can be effectively prevented from changing greatly before and after a brazing process is implemented; and 3, insulating silicone rubber poured into the electron gun part of the STWT is kept at the highest service temperature, so that the insulating silicone rubber is prevented from being subjected to aged deterioration.

Description

technical field [0001] The invention relates to the technical field of electric vacuum devices, in particular to a special brazing connection system for radiation radiators and space traveling wave tube collectors. Background technique [0002] Space traveling wave tubes are widely used in communication satellites, reconnaissance satellites, navigation satellites, resource satellites, meteorological satellites, ocean satellites, and transponders, data transmission systems, radar and electronic countermeasure transmitters of manned spaceflight and lunar exploration projects. The core component of the power amplifier. For communication satellites and navigation satellites, there are a large number of space traveling wave tubes used on the star, and the waste heat generated by them cannot be directly discharged into the satellite cabin, otherwise it will cause the temperature of the on-board equipment to rise and affect their normal work . In order to ensure that all the equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K3/00B23K3/08
Inventor 袁广江刘濮鲲张晓林邓峰
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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