Title:
分岐管の製造方法および分岐管付き熱交換器の製造方法
Document Type and Number:
Japanese Patent JP7284077
Kind Code:
B2
Abstract:
To provide a branch pipe capable of being brazed in a furnace.SOLUTION: In a method of manufacturing a branch pipe 31 composed of a press-in portion 33, a coupling pipe 36 having a cylinder portion 34 with a larger diameter than the press-in portion 33, and a pipe body 32 having a hole portion 37, the press-in portion 33 of the coupling pipe 36 is pressed in the hole portion 37 of the pipe body 32, and a C-shaped brazing filler material 42 is fitted with the pipe body 32 at a position where one end thereof abuts on the coupling pipe 36. Since the coupling pipe 36 performs brazing in a furnace in a substantially downward posture, if the C-shaped brazing filler material 42 is melt by high temperature in the furnace, it flows along an outer periphery of the pipe body 32 into a part where the hole portion 37 positioned under one end of the C-shaped brazing filler material 42 and the press-in portion 33 are pressed in to be brazed, thereby greatly reducing man-hour for manufacturing of the branch pipe 31.SELECTED DRAWING: Figure 5
Inventors:
Susumu Abe
Kenta Hoshino
Kenta Hoshino
Application Number:
JP2019218781A
Publication Date:
May 30, 2023
Filing Date:
December 03, 2019
Export Citation:
Assignee:
Corona Co., Ltd.
International Classes:
F16L41/02; B23K1/00; F16L13/08; F24H9/00; F28D7/16; F28F1/32
Domestic Patent References:
| JP55003016U | ||||
| JP11170089A | ||||
| JP7294010A | ||||
| JP2000356409A | ||||
| JP2018080866A |
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