JPS5396937A - Corrosion inhibiting method of tube with fin - Google Patents

Corrosion inhibiting method of tube with fin

Info

Publication number
JPS5396937A
JPS5396937A JP1140777A JP1140777A JPS5396937A JP S5396937 A JPS5396937 A JP S5396937A JP 1140777 A JP1140777 A JP 1140777A JP 1140777 A JP1140777 A JP 1140777A JP S5396937 A JPS5396937 A JP S5396937A
Authority
JP
Japan
Prior art keywords
fin
tube
corrosion inhibiting
inhibiting method
coating
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.)
Pending
Application number
JP1140777A
Other languages
Japanese (ja)
Inventor
Toshihiko Sato
Akio Dewa
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP1140777A priority Critical patent/JPS5396937A/en
Publication of JPS5396937A publication Critical patent/JPS5396937A/en
Pending 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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Coating With Molten Metal (AREA)

Abstract

PURPOSE:In the case that a tube made of Fe type material with a fin made of Al is to be corrosion inhibited, to maintain a corrosion resistance under any severe corrosive conditin accompanied by a temp. change, by coating the surface of it with Zn, and then coating the surface with (bi)chromate.
JP1140777A 1977-02-04 1977-02-04 Corrosion inhibiting method of tube with fin Pending JPS5396937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1140777A JPS5396937A (en) 1977-02-04 1977-02-04 Corrosion inhibiting method of tube with fin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1140777A JPS5396937A (en) 1977-02-04 1977-02-04 Corrosion inhibiting method of tube with fin

Publications (1)

Publication Number Publication Date
JPS5396937A true JPS5396937A (en) 1978-08-24

Family

ID=11777155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1140777A Pending JPS5396937A (en) 1977-02-04 1977-02-04 Corrosion inhibiting method of tube with fin

Country Status (1)

Country Link
JP (1) JPS5396937A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135836A (en) * 1973-05-04 1974-12-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49135836A (en) * 1973-05-04 1974-12-27

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