軟ろう付用フラックスの作用機構に関する研究(第 2 報) : ステアリン酸

概要

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The flux action of controlling flow and spread has little investigated for its difficulties in the quantitative measurement of spreadability. In this reports, stearic acid flux action of soldering was studied quantitatively on the relation between spreading of solder and the reaction of solder with flux. The resutls are summarized as follows : 1) The effect of heating time on the reaction of solder (Sn and Sn-Pb eutectic alloy) with Cu-Stearate flux reconciled almost with that of heating time on spreading. 2) In the case of Sn solder, spread area increased linearly with the reaction of Sn with Cu-stearate flux. 3) Inorganic copper compounds (CuO, Cu_2O, Cu(OH)_2) reacted with molten stearic acid to give Cu- stearate. 4) The yields of Cu-stearate produced by the reaction of stearic acid with inorganic copper compound played an important role in spreading of solder with stearic acid/inorganic copper compound system flux..
社団法人溶接学会の論文
1973-06-25