本文采用离心分离的方法沉淀出松香型焊膏的无机组分，并用发射光谱测定无机成分；
The inorganic composition of rosin paste was deposited by the way of centrifugation, and determined by the AES.
适量的表面活性剂的加入，有助于增强无铅焊膏用松香型助焊剂的助焊性能；
The result is that the rosin kind has no effect on soldering ability of rosin-based flux.
实验结果表明，松香种类不影响无铅焊膏用松香型助焊剂的助焊性能。
The factors affecting soldering ability of rosin-based flux for lead-free solder paste, and the factors affecting erosion resistance are discussed.
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