Title:
REFRIGERANT PIPE, HEAT EXCHANGER, AND METHOD FOR MANUFACTURING REFIGERANT PIPE
Document Type and Number:
WIPO Patent Application WO/2019/189668
Kind Code:
A1
Abstract:
Provided are a refrigerant pipe, a heat exchanger, and a method for manufacturing a refrigerant pipe, with which corrosion can be suppressed in a refrigerant pipe containing copper. The refrigerant pipe comprises a pipe main body containing copper or a copper alloy, and a rustproof film formed on the outer surface of the pipe main body. The rustproof film is obtained by applying to the outer surface of the pipe main body a coating agent wherein one or more types of rustproofing agents selected from the group consisting of (A) an organic sulfonate compound, (B) an organic acid ester compound of a polyhydric alcohol, and (C) an aliphatic amine compound having a carbon number of 8 to 24 are blended. When the coating agent includes a rustproofing agent of (C) an aliphatic amine compound having a carbon number of 8 to 24 the coating agent includes 2.0 weight% to 10.0 weight% of (C) an aliphatic amine compound having a carbon number of 8 to 24.
Inventors:
KANETAKE MIREI
TANAKA YUUJI
OKADA KUNIHIRO
OHYA HIDEO
KATAYAMA HIDEO
IMAZU KEISUKE
ARAKI SHOUHEI
TANAKA YUUJI
OKADA KUNIHIRO
OHYA HIDEO
KATAYAMA HIDEO
IMAZU KEISUKE
ARAKI SHOUHEI
Application Number:
PCT/JP2019/013811
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F28F19/02; C23F11/00; F16L58/10; F28F21/08
Domestic Patent References:
| WO2015003066A1 | 2015-01-08 |
Foreign References:
| JP2016216811A | 2016-12-22 | |||
| JPH04314896A | 1992-11-06 | |||
| JPS5328544A | 1978-03-16 | |||
| US20100294166A1 | 2010-11-25 | |||
| JP2011099152A | 2011-05-19 | |||
| JPH08500135A | 1996-01-09 | |||
| US20150247061A1 | 2015-09-03 | |||
| JP2014514446A | 2014-06-19 | |||
| JPS6041014B2 | 1985-09-13 |
Other References:
See also references of EP 3779347A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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