ALUMINUM EXTRUDED FLAT PERFORATED PIPE HAVING EXCELLENT INTERNAL SURFACE ANTICORROSION PROPERTY AND ALUMINUM HEAT EXCHANGER USING SAME

摘要

In this aluminum extruded flat perforated pipe, the anticorrosion property, at internal surfaces of a plurality of pores independently and parallelly extending in the pipe axis direction, is effectively enhanced. In an aluminum extruded flat perforated pipe 10 formed through an extrusion process by using an aluminum pipe body material and an aluminum sacrificial anode material which is electrochemically less noble than the aluminum pipe body material, a sacrificial anode part 18 is formed by causing the aluminum sacrificial anode material to be exposed at least in one portion of a hole-internal circumference section of each of the plurality of pores 12 extending in the pipe axis direction.