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铝波导的形状复杂,有的是由几十个厚薄相差很大的(0.5～30毫米)元件钎焊而成。铝波导钎焊的技术关键有以下几点:①波导元件精度要求高;②严格地控制钎缝上钎料的流量和谨慎地处理好密集钎缝;③提高钎缝的致密性和抗腐蚀性。为保证产品的尺寸精度,必须正确地控制和减小元件钎焊时的变形。引起元件钎焊后变形的原因有以下几点: ①钎焊时加热不均匀。②钎焊时元件的放置或支撑不合理。这一点,在炉中钎焊时尤为明显。
The shape of the aluminum waveguide is complicated, and some are brazed by dozens of components (0.5 to 30 mm in thickness) that vary greatly in thickness. Aluminum waveguide brazing technology has the following key points: ① high precision waveguide components; ② strict control of brazing flux on the brazing filler metal and carefully handle the dense brazing seam; ③ to improve the tightness of the brazing seam and corrosion resistance . In order to ensure the dimensional accuracy of the product, the deformation of the components during brazing must be controlled and reduced. After the components caused by brazing the reasons for the deformation of the following: ① brazing heating uneven. ② brazing components placed or support unreasonable. This is especially true when brazing in a furnace.