| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a heat exchanger capable of largely reducing the number of assembling steps, connecting a flow pipe precisely and securely and improving the quality, to provide a tool used for the method, and to provide a high-quality inexpensive heat exchanger. SOLUTION: This heat exchanger 1 is manufactured by a method comprising a closing tube planting step of planting a closing tube 15 in a recess 31 by using a positioning/guiding tool 40 for positioning and guiding the closing tube 15 to the recess 31 of a base plate 35, a connecting step of connecting the closing tube 15 to the base plate 35 by melting a brazing-filler 34 filled in the recess 31 with the recessed face of the recess 31 at the bottom after the closing tube planting step, a closing part removing step of removing at least a closing part 15b and making the closing tube 15 a flow pipe 4 after the connecting step, and a step of connecting the main body parts 7, 8 of tanks 2, 3 to the base plate 35 so as to communicate the tanks 2, 3 with the flow pipe 4 after the closing part removing step. COPYRIGHT: (C)2004,JPO |
