| 摘要 |
PURPOSE:To obtain solder for copper tube joining that does not cause lowering of mechanical strength of soldered part and generation of separation of joined parts and cracking by blending a small specified quantity of Ag, In and Sb with the main component of Sn. CONSTITUTION:An alloy consisting of 0.1-2.0wt% Ag, 0.05-1.00wt% In, 0.05- 0.5wt% Sb and 96.5-99.8wt% Sn is used in copper tube piping as a high temperature solder for copper tube joining. This solder alloy shows high thermal fatigue desistance when used for hot water circulation and refrigerating circulation. It does not cause deterioration or cracking in soldered parts under any circumstances. |
