To provide a laminated type heat exchanger eliminating the necessity of a large heating furnace adjustable to a high temperature atmosphere during manufacturing and capable of maintaining the liquid-tight state even when portions to which high pressure is applied are jointed, and a method of manufacturing the laminated type heat exchanger.
The laminated type heat exchanger 17 includes a refrigerant metallic pipe 13, a fluid metallic pipe 11, refrigerant header parts 33b and fluid header parts 33a. A refrigerant can be made to flow inside the refrigerant metallic pipe 13. Fluid exchanging heat with the refrigerant can be made to flow inside the fluid metallic pipe 11, and the fluid metallic pipe 11 is laminated with the refrigerant metallic pipe 13 and is jointed to the refrigerant metallic pipe 13 by a solder layer 15 or a resin bonding layer interposed between the fluid metallic pipe 11 and the refrigerant metallic pipe 13. An end of the refrigerant metal pipe 13 is jointed to the refrigerant header part 33b by blazing or fusion welding. An end of the fluid metallic pipe 11 is jointed to the fluid header part 33a.
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Masataka Otani
Tamagushi Yukihisa