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Composite material of aluminium alloy exhibiting high strength and enhanced voltaic conductivity, process for producing such material and its use
Composite material of aluminium alloy exhibiting high strength and enhanced voltaic conductivity, process for producing such material and its use
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机译:具有高强度和提高的导电率的铝合金复合材料,生产这种材料的方法及其用途
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摘要
An aluminum alloy composite material includes a higher strength aluminum alloy core material layer and at least one cladding aluminum alloy material layer having a higher electrical conductivity than the core material. The cladding layer is positioned adjacent to the core and the composite is adapted for particular application in heat exchangers where brazing is conducted under controlled atmospheres with special flux materials. The core material has an electrical conductivity less than 50% IACS and the cladding layer has an electrical conductivity greater than 50% IACS. The cladding layer can be on one or both surfaces of the core layer. The thickness of the cladding layer can range between about 2.5 and 40% of the overall composite thickness depending on whether one or more cladding layers are employed. The cladding layer also has a corrosion potential more negative than the core layer for enhanced corrosion resistance.
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