Heat exchanger, use of aluminum alloy and aluminum strip, and method of manufacturing aluminum strip

摘要

The present invention comprises at least one exchanger tube (12) made of an aluminum alloy and at least one component (14, 16) fluidly joined to the exchanger tube (12), particularly for automobiles. The invention relates to a heat exchanger (10). The exchanger tube (12) and the components (14, 16) are joined to each other via a common brazed joint, and the components (14, 16) joined to the exchanger tube (12) are made of an aluminum alloy. The composition of the aluminum alloy is as follows: Si: maximum 0.7% by weight, Fe: maximum 0.70% by weight, Cu: maximum 0.10% by weight, Mn: 0.9 to 1.5 wt%, Mg: 0.3 wt% max, Cr: max 0.25 wt%, Zn: max 0.50 wt%, Ti: max 0.25 wt%, Zr: max 0.25 wt% Inevitable impurities are 0.05% by weight at maximum, 0.15% by weight in total, and the rest is aluminum. The invention further relates to an aluminum strip having an aluminum alloy or a core layer (24) made of this aluminum alloy for producing a manifold (14, 16) or a tubesheet for a brazed heat exchanger (10). The use and method of manufacturing an aluminum strip. [Selection] Figure 1