JPS55161069A - Forming method of black film on surface of aluminum - Google Patents

Forming method of black film on surface of aluminum

Info

Publication number
JPS55161069A
JPS55161069A JP7036279A JP7036279A JPS55161069A JP S55161069 A JPS55161069 A JP S55161069A JP 7036279 A JP7036279 A JP 7036279A JP 7036279 A JP7036279 A JP 7036279A JP S55161069 A JPS55161069 A JP S55161069A
Authority
JP
Japan
Prior art keywords
salt
coating
contg
soln
molybdate
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
JP7036279A
Other languages
Japanese (ja)
Inventor
Yoshifumi Shimajiri
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.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP7036279A priority Critical patent/JPS55161069A/en
Publication of JPS55161069A publication Critical patent/JPS55161069A/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
    • C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/56—Treatment of aluminium or alloys based thereon
    • 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
    • C23C22/82—After-treatment
    • C23C22/84—Dyeing

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)
  • Chemical Treatment Of Metals (AREA)

Abstract

PURPOSE:To form black film on the surface of Al at a low cost, by treating the surface of Al with an aqueous soln. contg. sulfuric acid and at least one member selected from the group comprising Co salt, Ni salt etc. to form a chemical conversion coating, then by treating the coating with an aqueous soln. of molybdate etc. CONSTITUTION:Al is treated with an aqueous soln. for forming coating contg. suitable quantities of sulfuric acid and at least one member selected from the group consisting of Co salt, Ni salt, Mn salt, and Zn salt to form a chemical conversion coating on its surface then the Al is treated with an aqueous coloring soln. contg. suitable quantitites of Ni salt and molybdate such as ammonium molybdate to form a black coating. These chemical treatment forms uniform black coaing over whole Al product of complicated shape compared with that formed by conventional electrochemical treatment at a low energy cost.
JP7036279A 1979-06-04 1979-06-04 Forming method of black film on surface of aluminum Pending JPS55161069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7036279A JPS55161069A (en) 1979-06-04 1979-06-04 Forming method of black film on surface of aluminum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7036279A JPS55161069A (en) 1979-06-04 1979-06-04 Forming method of black film on surface of aluminum

Publications (1)

Publication Number Publication Date
JPS55161069A true JPS55161069A (en) 1980-12-15

Family

ID=13429238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7036279A Pending JPS55161069A (en) 1979-06-04 1979-06-04 Forming method of black film on surface of aluminum

Country Status (1)

Country Link
JP (1) JPS55161069A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03247775A (en) * 1990-02-26 1991-11-05 Furukawa Electric Co Ltd:The Colored aluminum member and its production
WO1996015296A1 (en) * 1994-11-14 1996-05-23 The Secretary Of State For Defence Treatment of aluminium or aluminium alloys
CN104451639A (en) * 2014-11-19 2015-03-25 芜湖金龙模具锻造有限责任公司 Preparation method of metal screw blackening agent

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03247775A (en) * 1990-02-26 1991-11-05 Furukawa Electric Co Ltd:The Colored aluminum member and its production
WO1996015296A1 (en) * 1994-11-14 1996-05-23 The Secretary Of State For Defence Treatment of aluminium or aluminium alloys
GB2308851A (en) * 1994-11-14 1997-07-09 Secr Defence Treatment of aluminium or aluminium alloys
CN104451639A (en) * 2014-11-19 2015-03-25 芜湖金龙模具锻造有限责任公司 Preparation method of metal screw blackening agent

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