AgとZnを含むBi-Pb系はんだによる銅の加圧はんだ付継手の特性

概要

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Press-Soldering is a method to make a joint at a relatively lower temperature and obtain a higher joint strength. Press-Soldering experiments at 1 kgf/mm^2 and 3 kgf/mm^2 pressure were done using Bi-Pb type solder with Ag and Zn additions to obtain a sound alloyed layer at a temperature below 350℃. Tensile strength, heat-resistivity and composition of the alloyed layers of press-soldered Cu to Cu joints were investigated. A joint which was press-soldered at 350℃ with 3 kgf/mm^2 pressure using a Bi-42%Pb-3%Ag-2%Zn solder showed the best result. The joint had 8 kgf/mm^2 of tensile strength and the remelting temperature above 820℃. In this case, two alloyed layers were found in the joint interface. The composition of the alloyed layers were Cu-18.5%Zn-2.5%Ag and Ag-29%Zn-3.5%Cu respectively.
社団法人溶接学会の論文
1986-05-05