TUBE FOR PLATE BENDING-TYPE ALUMINUM HEAT EXCHANGER, ALUMINUM HEAT EXCHANGER, AND METHOD OF MANUFACTURING TUBE FOR PLATE BENDING-TYPE ALUMINUM HEAT EXCHANGER

摘要

PROBLEM TO BE SOLVED: To provide a tube for the plate bending-type aluminum heat exchanger capable of reducing defective brazing at a joining section of a surface of a sacrificial anode material and a surface of brazing filler metal. SOLUTION: A groove 13 extending in the direction not in parallel with a threading direction in manufacturing the tube for the aluminum heat exchanger, that is, in the direction intersecting with the threading direction in manufacturing the tube for the aluminum heat exchanger, is formed, thus the flux can easily flow to the joining section of the sacrificial anode material not exposed to the external of a center pillar section and the like, and the brazing filler metal while guided by the groove 13, and the brazing performance can be improved. COPYRIGHT: (C)2010,JPO&INPIT