| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat exchanger comprising a tube of a structure capable of improving work efficiency for correction when defective brazing of a plate constituting the tube is found, while controlling the generation of defective brazing of the tube and a header plate. SOLUTION: The tube 2 is composed of the first and second plates 6, 7 oppositely fitted to each other. The first plate 6 is shaped in such manner that an end portion 6a of the first plate is disposed along a curved portion 7b of the second plate so that outer wall faces of the tube become flush at areas C at both end sides of the tube 2, and the end portion 6a of the first plate 6 is positioned between an end portion 7a of the second plate and the curved portion 7b at an area D excluding both end sides of the tube 2. COPYRIGHT: (C)2007,JPO&INPIT |
