ALUMINUM ALLOY CLAD TUBE MATERIAL HAVING EXCELLENT CORROSION RESISTANCE, AND HEAT EXCHANGER WITH BUILT-IN CLAD TUBE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide an aluminum alloy clad tube material in which a fin consisting of a brazing sheet is brazed and joined to the inner surface so as to be a cooling medium passage and a fin is also brazed to the outer surface side, and which has excellent strength, brazing properties and corrosion resistance as a member for a heat exchanger suitably usable when exposed to moisture condensation water from the air, a thawing agent or the like, and to provide a heat exchanger such as a condenser and an evaporator with the clad tube material assembled. SOLUTION: The clad tube material is obtained by cladding an aluminum alloy for a sacrificial anode material on an aluminum alloy for a core material, and has a thickness of≤300μm. The clad tube material is formed so that the inner side ibecomes a core material and the outer side becomes a sacrificial anode material. COPYRIGHT: (C)2004,JPO&NCIPI