Aluminum Alloy Brass Soldering Material for Heat Exchanger and Sheet and Aluminum Alloy Heat Exchanger

摘要

A typical aluminum alloy brass coating material (A) is 7.0-12.0 wt% Si, 0.1-8.0 wt% Cu, 0.05-0.5 wt% Fe, 0.5-5.5 wt% Zn, 0.002-0.3 wt% In And 0.002-0.3 wt% Sn, at least one kind selected from the group consisting of Al and a small amount of impurities. A typical aluminum alloy brass cladding plate with a three-layer cladding structure is a brass cladding material (A) with 0.6-2.5 wt% Si, 0.5-2.5 wt% Cu, 0.05-2.0 wt% Mn, and the rest. A core material (B) consisting of Al and a very small amount of impurities, one selected from the group consisting of 0.5-6.0 wt% Zn, 0.002-0.3 wt% In, and 0.002-0.3 wt% Sn, and the rest is Al It includes a core material (B) containing a corrosion resistant material consisting of a very small amount of impurities, or both sides are coated with a brass coating material (A). By using the brass coating material or brass coating plate of the present invention, the brass coating heating can be performed at a temperature of 570-575 ° C.