| 摘要 |
PURPOSE:To provide a solder alloy which can be used while the alloy is rested in the atm and which is hardly oxidizable by incorporating a specific ratio of Sn, Ag and P into Pb. CONSTITUTION:A solder alloy is produced by compounding respective raw materials so as to contain 0.5-5.0wt% Sn, 0.5-5.0wt% Ag, 0.01-0.3wt% P and the balance Pb, melting the mixture in an electric furnace or the like, extruding the molten alloy from a casting ingot and finishing the extrudate to a desired shape including a wire, tape, etc. by working such as rolling. Since such solder alloy is hardly oxidizable, the labor for storage and pretreatment are not required. |
