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Title:
ALUMINUM EXTRUDED FLAT PERFORATED PIPE HAVING EXCELLENT INTERNAL SURFACE ANTICORROSION PROPERTY AND ALUMINUM HEAT EXCHANGER USING SAME
Document Type and Number:
WIPO Patent Application WO/2017/026510
Kind Code:
A1
Abstract:
In this aluminum extruded flat perforated pipe, the anticorrosion property, at internal surfaces of a plurality of pores independently and parallelly extending in the pipe axis direction, is effectively enhanced. In an aluminum extruded flat perforated pipe 10 formed through an extrusion process by using an aluminum pipe body material and an aluminum sacrificial anode material which is electrochemically less noble than the aluminum pipe body material, a sacrificial anode part 18 is formed by causing the aluminum sacrificial anode material to be exposed at least in one portion of a hole-internal circumference section of each of the plurality of pores 12 extending in the pipe axis direction.

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Inventors:
NAKAMURA SHINICHI (JP)
YAMASHITA NAOKI (JP)
NAGAO SEIICHI (JP)
SHIBATA SATOSHI (JP)
NAITOU KAZUHISA (JP)
OKINOTANI TAKESHI (JP)
ICHIKAWA SUSUMU (JP)
ITOH AKIRA (JP)
Application Number:
PCT/JP2016/073569
Publication Date:
February 16, 2017
Filing Date:
August 10, 2016
Export Citation:
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Assignee:
UACJ CORP (JP)
UACJ EXTRUSION CORP (JP)
DENSO CORP (JP)
International Classes:
F28F1/02; B21C23/22; F28F19/06; F28F21/08; C22C21/00
Foreign References:
US20060118282A12006-06-08
JP2014095524A2014-05-22
Attorney, Agent or Firm:
NAKASHIMA, Michio et al. (JP)
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