Title:
HEAT CONDUCTING ALUMINUM ALLOY PIPE FOR OPEN RACK VAPORIZER, AND PRODUCING METHOD THEREOF AS WELL AS OPEN RACK VAPORIZER
Document Type and Number:
Japanese Patent JP2018071945
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a heat conducting aluminum alloy pipe for an open rack vaporizer, which ha a sacrificial anode layer having an excellent durability on its surface, and the open rack vaporizer.SOLUTION: A heat conducting aluminum alloy pipe for an open rack vaporizer comprises heat conducting pipe base material which is made of aluminum alloy and has a plurality of fins parallel with longitudinal direction of a peripheral surface and a sacrificial anode layer formed on an outer surface of the heat conducting pipe base material. The sacrificial anode layer contains Zn: 0.5 to 2.0% (mass%, the same is applied hereinafter), Fe: 0.2 to 0.5%; and Al and inevitable impurities as remaining contents. An element diffusion layer has a thickness of 2 μm or more at an interface between the heat conducting pipe base material and the sacrificial anode layer. It is preferable that the sacrificial anode layer has a thickness of 0.005 mm or more. In addition, when the maximum thickness of the sacrificial anode layer is defined as Tmax and the minimum thickness is defined as Tmin, it is preferable that Tmax/Tmin is 4 or more.SELECTED DRAWING: Figure 1
Inventors:
MINODA TADASHI
MATSUDA SHINICHI
TAKAOKA YAMATO
NAKAMURA TAKUO
SOTOIKE YOSHIAKI
HIRAYAMA TOSHIHIRO
MATSUDA SHINICHI
TAKAOKA YAMATO
NAKAMURA TAKUO
SOTOIKE YOSHIAKI
HIRAYAMA TOSHIHIRO
Application Number:
JP2016216003A
Publication Date:
May 10, 2018
Filing Date:
November 04, 2016
Export Citation:
Assignee:
UACJ EXTRUSION CORP
SUMITOMO PRECISION PROD CO
SUMITOMO PRECISION PROD CO
International Classes:
F28F19/06; F28F1/42; F28F21/08
Attorney, Agent or Firm:
Patent Business Corporation Aichi International Patent Office