Aluminium composite material having an internal solder layer

Abstract

The invention relates to a brazable three-layered aluminium composite material having at least three layers with at least two different aluminium alloys, whereby an inner layer of the at least three layers is an aluminium brazing layer made from an aluminium brazing alloy, the other layers are configured as covering layers and include at least one further aluminium alloy, wherein the at least one further aluminium alloy has a higher solidus temperature than the liquidus temperature of the aluminium brazing alloy. The individual covering layers have a thickness which exceeds the thickness of the aluminium brazing layer by at least a factor of 1.5, preferably by a factor of 5. The brazable aluminium composite material is simply structured, has good brazing properties for the production of butt-joint brazing connections, significantly reduces the risk of a ‘burning through’ of brazed-on components and provides sufficient mechanical properties.

Dependencies are inferred from the claim text.