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通过金相显微镜和扫描电镜对急冷铝基纤料箔两个表面的观察分析表明，急冷钎料箔正面和自由面的微观特征明显不同。纤料箔正面具有周期性分布的波浪形气痕、纵向的撕裂沟痕和模体沟痕；而自由面上具有周期性分布的箭头状气痕、圆形气坑、纵向摩擦沟痕、随机分布的山丘状隆起和弥散分布的圆形小凸起等现象，本研究分析了这些现象的成因并提出了相应的解决办法，为制备表面质量较高的急冷铝基钎料箔提供依据。
The observation and analysis of the two surfaces of the quenched aluminum-based fiber foil by means of a metallographic microscope and a scanning electron microscope show that the micro-features of the front and the free surface of the rapidly-cooled solder foil are obviously different. The front of the fiber foil has periodically distributed wavy gas marks, longitudinal tear grooves and mold groove marks. On the free surface, there are periodically distributed arrow-like gas marks, circular gas pits, longitudinal friction grooves, This paper analyzes the causes of these phenomena and puts forward the corresponding solutions to provide a basis for the preparation of quenched aluminum-based filler foil with high surface quality .