| 摘要 |
<p>To provide Sn-Zn series solder alloy that can decrease the amount of occurred dross, suppress discoloration of the fusion solder alloy and re-oxidation, and suppress the erosion phenomenon of Al and Ni even when the fusion solder alloy exposes the air. In order to suppress diffusion of Al and/or Ni to the solder alloy by forming an oxide film on a surface of the solder bath prior to Zn, a solder alloy has an alloy composition containing Zn of 3 through 25 mass %, Ti of 0.002 through 0.25 mass %, Al of 0.002 through 0.25 mass % and balance of Sn.</p> |
