HEAT EXCHANGER USE OF AN ALUMINIUM ALLOY AND AN ALUMINIUM STRIP AND METHOD FOR PRODUCING AN ALUMINIUM STRIP

摘要

The present invention is a heat exchanger having at least one heat exchanger tube 12 made of aluminum alloy and at least one component 14, 16 connected in fluid communication with the heat exchanger tube 12, in particular a heat exchanger 10 for a vehicle The heat exchanger tube 12 and the components 14, 16 are connected to each other by a general brazing connection, and the components 14, 16 connected to the heat exchanger tube 12 are a core layer 24 of aluminum alloy. And, the composition of the aluminum alloy is: Si: maximum 0.7% by weight, Fe: maximum 0.7% by weight, Cu: maximum 0.10% by weight, Mn: 0.9-1.5% by weight, Mg: maximum 0.30% by weight, Cr: maximum 0.25% by weight, Zn: maximum 0.50% by weight, Ti: maximum 0.25% by weight, Zr: maximum 0.25% by weight, individually maximum 0.05% by weight of inevitable impurities, maximum 0.15% by weight in total, the balance is aluminum. The invention also relates to the use of aluminum alloys, aluminum strips with core layers 24 of such aluminum alloys for producing manifolds 14, 16 or tubesheets for brazing heat exchangers 10, and of aluminum strips. It relates to a manufacturing method.