ALUMINUM EXTRUDED FLAT PERFORATED PIPE EXHIBITING EXCELLENT BRAZING PROPERTIES AND OUTER-SURFACE CORROSION RESISTANCE, AND ALUMINUM HEAT EXCHANGER OBTAINED USING SAME

摘要

The present invention provides an aluminum extruded flat perforated pipe exhibiting excellent brazing properties and outer-surface corrosion resistance in the pipe outer-circumferential section thereof. An aluminum extruded flat perforated pipe 10 formed by simultaneously extruding an aluminum pipe main body material and a more electrochemically basic sacrificial anode/brazing material comprising an Al-Si-Zn-based aluminum alloy, wherein a sacrificial anode/brazing material section 18 is formed by exposing the sacrificial anode/brazing material around the entirety of the pipe outer-circumferential wall section or at least part of the flat section of the pipe outer-circumferential wall section.