aluminum alloy brazing plate, manufacturing method thereof, and automotive heat exchanger manufacturing method using said brazing plate

摘要

an aluminum alloy brazing plate, a method of manufacturing it, and a manufacturing method for an automotive heat exchanger, said aluminum alloy brazing plate comprising an aluminum alloy core, a first material brazing material which is coated to one core surface and a second brazing material which is coated to the other surface, wherein the core, the first brazing material and the second brazing material each comprise an alloy. aluminum having a prescribed composition, the first brazing material and the second brazing material each comprise an aluminum alloy that acts as a sacrificial anode and has a brazing function, and within the second brazing material, There are 2,000 parts / mm2 or less of an al-si-fe intermetallic compound having an equivalent circle diameter of 0.5 to 80.0 µm.