JPS56127767A - Production of corrosion-resistant aluminum pipe - Google Patents

Production of corrosion-resistant aluminum pipe

Info

Publication number
JPS56127767A
JPS56127767A JP3100280A JP3100280A JPS56127767A JP S56127767 A JPS56127767 A JP S56127767A JP 3100280 A JP3100280 A JP 3100280A JP 3100280 A JP3100280 A JP 3100280A JP S56127767 A JPS56127767 A JP S56127767A
Authority
JP
Japan
Prior art keywords
pipe
aluminum
diffusion layer
zinc
outside surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP3100280A
Other languages
Japanese (ja)
Other versions
JPS5742706B2 (en
Inventor
Zenichi Tanabe
Hiroshi Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Light Metal Industries Ltd
Original Assignee
Sumitomo Light Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Light Metal Industries Ltd filed Critical Sumitomo Light Metal Industries Ltd
Priority to JP3100280A priority Critical patent/JPS56127767A/en
Publication of JPS56127767A publication Critical patent/JPS56127767A/en
Publication of JPS5742706B2 publication Critical patent/JPS5742706B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes

Abstract

PURPOSE:To produce the aluminum pipe excellent in corrosion resistance by a method wherein an aluminum pipe clad with a zinc-containing aluminum alloy on the inside and/or outside surface thereof is heated at a specified temperature to produce a zinc diffusion layer at the inside and/or outside surface. CONSTITUTION:The aluminum or aluminum-alloy pipe clad with the zinc-containing aluminum alloy on the inside and/or outside surface thereof is produced first. The pipe is heated at a temperature of 400-620 deg.C to produce the zinc diffusion layer as a sacrificial corrosion layer on the inside and/or outside surface of the pipe. The heating time is about 10min - about 10hr and is appropriately selected according to the thickness of the diffusion layer to be produced. The thickness of the diffusion layer is about 40-500mu and the Zn concentration at the surface is preferably not less than about 0.5%.
JP3100280A 1980-03-12 1980-03-12 Production of corrosion-resistant aluminum pipe Granted JPS56127767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3100280A JPS56127767A (en) 1980-03-12 1980-03-12 Production of corrosion-resistant aluminum pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3100280A JPS56127767A (en) 1980-03-12 1980-03-12 Production of corrosion-resistant aluminum pipe

Publications (2)

Publication Number Publication Date
JPS56127767A true JPS56127767A (en) 1981-10-06
JPS5742706B2 JPS5742706B2 (en) 1982-09-10

Family

ID=12319358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3100280A Granted JPS56127767A (en) 1980-03-12 1980-03-12 Production of corrosion-resistant aluminum pipe

Country Status (1)

Country Link
JP (1) JPS56127767A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834592A1 (en) * 1996-09-30 1998-04-08 Toyota Jidosha Kabushiki Kaisha Aluminum product having metal diffusion layer, process for producing the same, and paste for metal diffusion treatment
WO1999016920A1 (en) * 1997-09-30 1999-04-08 Zexel Corporation Heat exchanger
JP2017008356A (en) * 2015-06-19 2017-01-12 三菱アルミニウム株式会社 Aluminum alloy tube for heat exchanger and production method for the same, and heat exchanger core

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834592A1 (en) * 1996-09-30 1998-04-08 Toyota Jidosha Kabushiki Kaisha Aluminum product having metal diffusion layer, process for producing the same, and paste for metal diffusion treatment
US5989734A (en) * 1996-09-30 1999-11-23 Toyota Jidosha Kabushiki Kaisha Aluminum product having metal diffusion layer, process for producing the same, and paste for metal diffusion treatment
WO1999016920A1 (en) * 1997-09-30 1999-04-08 Zexel Corporation Heat exchanger
JP2017008356A (en) * 2015-06-19 2017-01-12 三菱アルミニウム株式会社 Aluminum alloy tube for heat exchanger and production method for the same, and heat exchanger core

Also Published As

Publication number Publication date
JPS5742706B2 (en) 1982-09-10

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