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本文介绍一种由上百个零件构成的巨型特殊波导——蛇形波导的氢气保护银钎焊技术。蛇形波导的结构相当复杂,钎缝既多又长,达五十余公尺,呈立体几何状。精度要求也比较高,因此,加工和钎接都极其困难。本文论述了氢气保护银钎焊工艺在解决这类器件钎焊成形问题方面的突出优点;详细地探讨了几个关键的技术问题。文中还推荐了一套比较安全可靠和比较实用的氢气保护银钎焊装备和工艺。采用这套装备和工艺钎焊成的蛇形波导满足了设计的要求。
This article describes a giant special waveguide composed of hundreds of parts - serpentine waveguide hydrogen protection silver brazing technology. The structure of the serpentine waveguide is rather complicated, the brazing seam is both long and numerous, reaching more than 50 meters in three-dimensional geometry. Accuracy requirements are also relatively high, therefore, processing and brazing are extremely difficult. This article discusses the outstanding advantages of the hydrogen-shielding silver brazing process in soldering the problem of soldering of such devices; discusses several key technical issues in detail. The article also recommended a more secure and reliable and more practical protection of silver brazing equipment and hydrogen. The snake-shaped waveguide soldered with this equipment and process meets the design requirements.