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JPS55115975A - Surface treating method of aluminum or aluminum alloy - Google Patents

Surface treating method of aluminum or aluminum alloy

Info

Publication number
JPS55115975A
JPS55115975A JP2238879A JP2238879A JPS55115975A JP S55115975 A JPS55115975 A JP S55115975A JP 2238879 A JP2238879 A JP 2238879A JP 2238879 A JP2238879 A JP 2238879A JP S55115975 A JPS55115975 A JP S55115975A
Authority
JP
Japan
Prior art keywords
alloy
aluminum
solution
adhesiveness
surface treating
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
JP2238879A
Other languages
Japanese (ja)
Inventor
Tsunetada Oto
Ryoji Endo
Akira Onishi
Koichi Taketomi
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.)
Rasa Industries Ltd
Original Assignee
Rasa 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 Rasa Industries Ltd filed Critical Rasa Industries Ltd
Priority to JP2238879A priority Critical patent/JPS55115975A/en
Publication of JPS55115975A publication Critical patent/JPS55115975A/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

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 improve the adhesiveness of Al or Al alloy surfaces without using anything which will give harmful effect upon human body by dipping Al or Al alloy in the aqueous nitric acid solution of the specific concentration. CONSTITUTION:Al or Al alloy is dipped in an aqueous nitric acid solution of 30- 80wt% or the aqueous solution comprising adding one or more kinds of heavy metal salts, corrosion inhibitors, sulfuric acid, phosphoric acid or fluorine compounds according to need to this solution, whereby the natural oxide films on the surfaces are removed. The above treatment improves the adhesiveness between the Al or Al alloy surfaces and paints, adhesives and resins.
JP2238879A 1979-02-27 1979-02-27 Surface treating method of aluminum or aluminum alloy Pending JPS55115975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2238879A JPS55115975A (en) 1979-02-27 1979-02-27 Surface treating method of aluminum or aluminum alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2238879A JPS55115975A (en) 1979-02-27 1979-02-27 Surface treating method of aluminum or aluminum alloy

Publications (1)

Publication Number Publication Date
JPS55115975A true JPS55115975A (en) 1980-09-06

Family

ID=12081265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2238879A Pending JPS55115975A (en) 1979-02-27 1979-02-27 Surface treating method of aluminum or aluminum alloy

Country Status (1)

Country Link
JP (1) JPS55115975A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012687A1 (en) * 1992-11-26 1994-06-09 Bhp Steel (Jla) Pty. Ltd. Anti corrosion treatment of aluminium or aluminium alloy surfaces
JP2002332575A (en) * 2001-05-07 2002-11-22 Nippon Paint Co Ltd Chemical conversion treatment agent and treatment method
US6653384B1 (en) 1999-02-26 2003-11-25 Nippon Light Metal Company, Ltd. Process for priming aluminum materials and primers
KR100669629B1 (en) * 1999-02-26 2007-01-15 니폰게이긴조쿠가부시키가이샤 Process for hydrophilic treatment of aluminum materials and primers therefor and hydrophilic coatings

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012687A1 (en) * 1992-11-26 1994-06-09 Bhp Steel (Jla) Pty. Ltd. Anti corrosion treatment of aluminium or aluminium alloy surfaces
US6653384B1 (en) 1999-02-26 2003-11-25 Nippon Light Metal Company, Ltd. Process for priming aluminum materials and primers
KR100669628B1 (en) * 1999-02-26 2007-01-15 니폰게이긴조쿠가부시키가이샤 Process for priming aluminum materials and primers
KR100669629B1 (en) * 1999-02-26 2007-01-15 니폰게이긴조쿠가부시키가이샤 Process for hydrophilic treatment of aluminum materials and primers therefor and hydrophilic coatings
JP2002332575A (en) * 2001-05-07 2002-11-22 Nippon Paint Co Ltd Chemical conversion treatment agent and treatment method

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