| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a laminated heat exchanger, capable of reducing the assembling failure and brazing failure of a tank joint part. SOLUTION: The method for manufacturing a laminated heat exchanger comprises laminating a plurality of tubes 8 each composed of a first tube sheet 6 and second tube sheet 7 having a first tank hole and a second tank hole 13 for carrying in and out a heat exchange medium and an inner fin 6 through outer fins 10, and placing a heat exchanger core 2 composed of the laminated body of the tubes 8 and the outer fins 10 in a vacuum furnace to braze them. When the first tube sheet 6 is laminated on the second tube sheet 7, the opening periphery of the second tank hole 13 of the superposed first tube sheet 6 and second tube sheet 7 is nipped by a tube temporary holding member 14 consisting of a brazing material to temporarily hold the first tube sheet 6 and second tube sheet 7 to be laminated. COPYRIGHT: (C)2005,JPO&NCIPI
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