| 摘要 |
A solder is disclosed which consists essentially of from about 55 to about 65 percent by weight of tin, from about 2 to about 3.9 percent by weight of calcium with the remainder being lead. The calcium modified tin-lead solders of this invention are characterized by excellent soldering properties, especially uniform solidification on cooling, and by forming solder joints with a tensile strength of at least about 7000 PSI (49.21x105 kg/sq m).
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