| 摘要 |
PROBLEM TO BE SOLVED: To provide a lead-free solder which is free from harmful substances and excellent in solderability. SOLUTION: The lead-free solder contains 30-60 wt.% zinc, 0.1-2 wt.% copper and the balance of tin, or contains 30-60 wt.% zinc, 0.1-2 wt.% copper, 0.1-1 wt.% nickel and the balance of tin. Either of the above-mentioned solders further may contain 0.01-0.5 wt.% aluminum. The invented solder is used for soldering electronic components or connecting fuse wires. COPYRIGHT: (C)2007,JPO&INPIT |
