NOVEL USE FOR COMPLEX FLUORIDES

摘要

According to the invention, potassium fluorostannates and cesium fluorostannates can be used as fluxing agents for soldering aluminum and aluminum alloys. Even a solderless soldering is possible. Conventional fluxing agents or other fluorometallates, in particular, alkali fluorozincates and/or alkali fluorosilicates can also be added to said fluorostannates. It is possible to apply the fluxing agents according to the dry fluxing method as well as to the wet fluxing method.