| 摘要 |
PROBLEM TO BE SOLVED: To upgrade welding of a core plate to a tank body and to assure brazing of a core plate (extending part) to an insert (reinforcing plate). SOLUTION: The extending part 123 of the core plate 121 is brazed to the insert 130 in a state in which the extending part 123 of the plate 121 is interposed at a forked part 131 formed at the insert 130. The width size Wc of the part 123 is formed substantially equal to the width size Wi of the insert 130. Thus, a flux is not liable to retain at the longitudinal end of the plate 131. Since the contact area of the part 123 with the insert 130 is increased, brazing of the part 123 to the insert 130 is assured while easily welding the tank body 122 to the plate 121. |
