近几年来,铝合金真空钎焊得到了进一步的发展。采用这种工艺方法,不仅焊成了由钎焊板组装的热交换器类型产品,而且焊成了由普通铝合金型材组装的铝波导复杂结构件,并对铝合金型材真空钎焊机理进一步进行了研究。铝真空钎焊机理研究结果指出,在铝真空钎焊时,由于母材与其表面氧化膜的热膨胀 In recent years, aluminum alloy vacuum brazing has been further developed. Adopting this kind of technological method, not only the heat exchanger type products assembled by the brazing sheet are soldered, but also the aluminum waveguide complex structure assembled by ordinary aluminum alloy profiles is welded and the aluminum brazing vacuum brazing mechanism is further carried out Study. Aluminum vacuum brazing mechanism of the results of the study pointed out that in the vacuum brazing of aluminum, due to the base material and its surface oxide film thermal expansion