ALUMINUM ALLOY BRAZING MATERIAL, BRAZING MEMBER, BRAZED ARTICLE AND BRAZINH METHOD THEREFOR USING SAID MATERIAL, BRAZING HEAT EXCHANGINH TUBE, HEAT EXCHANGER AND MANUFACTURING METHOD THEREOF USING SAID BRAZING HEAT EXCHANGING TUBE

摘要

PROBLEM TO BE SOLVED: To manufacture a heat exchanger having superior corrosion resistance by suppressing peeling of fins as well as corrosion depth, in corrosionproof brazing heat exchange tubes using sacrificial corrosion.;SOLUTION: The heat exchanger 10 is characterized in that brazing heat exchange tubes S and fins 4 are brazed through a brazing filler metal layer 11 of the brazing heat exchange tube S. The brazing filler metal layer 11 is formed by thermal spraying of aluminum alloy filler metal comprising 6-15 mass % Si, 1-20 mass % Zn, at least either one of 0.3-0.6 mass % Cu and 0.3-1.5 mass % Mn, and the balance aluminum and impurities.;COPYRIGHT: (C)2004,JPO&NCIPI