Soft solder alloy, for soldering aluminum materials, is based on tin with light metals in a solid intermetallic phase during soldering and forming a further metal oxide during or after soldering

摘要

The soft solder alloy wire is based on tin. The alloy contains at least one light metal in a generally eutectic composition with particles at least in a solid intermetallic phase during soldering. At least one further light metal is included with a thermo chemical potential, so that a further metal oxide is formed by oxidizing during or after soldering. The first and/or second light metal is lithium, sodium, magnesium and/or aluminum.