Title:
熱交換器における二重管の接合方法
Document Type and Number:
Japanese Patent JP7105111
Kind Code:
B2
Abstract:
This method for joining a double pipe is applied to a heat exchanger provided with a double pipe comprising an outer pipe (1) and an inner pipe (2) that are made of an aluminum alloy. The heat exchanger performs heat exchange between a refrigerant flowing between the inner pipe (2) and the outer pipe (1) and a refrigerant flowing inside of the inner pipe (2). In the joining method, the outer pipe (1) and the inner pipe (2) are joined by brazing/heating via a brazing member positioned therebetween. More specifically, the space between the outer pipe (1) and the inner pipe (2) is filled with an inert gas before brazing/heating, whereupon the outer pipe (1) and the inner pipe (2) are joined together by brazing/heating.
Inventors:
Taichi Suzuki
Tsuchiko Takeyoshi
Naoki Yamashita
Makoto Yoshino
Junichi Ono
Yamamoto Ken
Ryota Nakajima
Tsuchiko Takeyoshi
Naoki Yamashita
Makoto Yoshino
Junichi Ono
Yamamoto Ken
Ryota Nakajima
Application Number:
JP2018112132A
Publication Date:
July 22, 2022
Filing Date:
June 12, 2018
Export Citation:
Assignee:
Uacj Co., Ltd.
Uacj Extrusion Co., Ltd.
Uacj Extrusion Co., Ltd.
International Classes:
F28D7/10; B23K1/00; B23K1/012; B23K1/19; B23K31/02; B23K33/00; F28F21/08
Domestic Patent References:
| JP2000071063A | ||||
| JP2011000614A | ||||
| JP57036062A | ||||
| JP11033709A | ||||
| JP2013178079A |
Foreign References:
| DE102011008119A1 | ||||
| US4231508 | ||||
| US20120279691 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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