Title:
HIGHLY CORROSION-RESISTANT COPPER PIPE
Document Type and Number:
WIPO Patent Application WO/2018/061277
Kind Code:
A1
Abstract:
Provided is a copper pipe that has excellent anti-corrosion properties, that is capable of exhibiting even greater corrosion resistance against ant nest corrosion, and that can suitably be employed as a heat transmitting pipe, a refrigerant pipe, or the like, in air conditioning equipment or refrigeration equipment. The copper pipe is manufactured by using a Cu material in which P is contained at 0.15-0.6% by weight and Cu and impurities constitute the balance, and when the P content is denoted as X (% by weight), the copper pipe is configured so as to have a conductivity (Y1 or Y2: %IACS) that satisfies 50-75X ≤ Y1 ≤ 60-75X when having a recrystallized structure or 47-75X ≤ Y2 ≤ 57-75X when having a processed structure.
Inventors:
TAMAGAWA HIROKAZU (JP)
SUITO KENSUKE (JP)
HIURA TOMOYUKI (JP)
SUITO KENSUKE (JP)
HIURA TOMOYUKI (JP)
Application Number:
PCT/JP2017/016194
Publication Date:
April 05, 2018
Filing Date:
April 24, 2017
Export Citation:
Assignee:
UACJ CORP (JP)
UACJ COPPER TUBE CORP (JP)
UACJ COPPER TUBE CORP (JP)
International Classes:
C22C9/00; F28F21/08; C22F1/00; C22F1/08
Domestic Patent References:
| WO2014148127A1 | 2014-09-25 | |||
| WO2014148127A1 | 2014-09-25 |
Foreign References:
| JP2001247923A | 2001-09-14 | |||
| JP2008304170A | 2008-12-18 | |||
| JP2009235428A | 2009-10-15 |
Other References:
See also references of EP 3521463A4
Attorney, Agent or Firm:
NAKASHIMA, Michio et al. (JP)
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