GB1023535A - Improvements in or relating to anodized alloys - Google Patents

Improvements in or relating to anodized alloys

Info

Publication number
GB1023535A
GB1023535A GB4075264A GB4075264A GB1023535A GB 1023535 A GB1023535 A GB 1023535A GB 4075264 A GB4075264 A GB 4075264A GB 4075264 A GB4075264 A GB 4075264A GB 1023535 A GB1023535 A GB 1023535A
Authority
GB
United Kingdom
Prior art keywords
alloy
anodizing
coating
range
acid
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.)
Expired
Application number
GB4075264A
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.)
Kaiser Aluminum and Chemical Corp
Original Assignee
Kaiser Aluminum and Chemical 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 Kaiser Aluminum and Chemical Corp filed Critical Kaiser Aluminum and Chemical Corp
Publication of GB1023535A publication Critical patent/GB1023535A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/14—Producing integrally coloured layers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A black anodic oxide coating is produced on a 6063 Al-Mg-Si alloy suitable for architectural purposes by immersing the alloy in a bath containing 25-150 g./l. of sulphophthalic acid and 0.1-15 g./l. of sulphuric acid, anodizing the alloy in a first stage at a constant current density in the range 15-50 A.S.F. until a preselected voltage in the range 25-100 volts is reached, and subsequently anodizing the alloy while maintaining the preselected voltage until a black coating is obtained. Typically the bath temperature should be within the range 7.2-29.4 DEG C. and a coating of thickness 0.3-2.0 mils may be obtained. Prior to anodizing the alloy may be etched in NaOH solution and desmutted in nitric acid while the anodizing coating may be sealed in a near-boiling aqueous bath containing sodium lignosulphate and nickel acetate.
GB4075264A 1963-10-07 1964-10-06 Improvements in or relating to anodized alloys Expired GB1023535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31449763A 1963-10-07 1963-10-07

Publications (1)

Publication Number Publication Date
GB1023535A true GB1023535A (en) 1966-03-23

Family

ID=23220192

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4075264A Expired GB1023535A (en) 1963-10-07 1964-10-06 Improvements in or relating to anodized alloys

Country Status (3)

Country Link
JP (1) JPS4920463B1 (en)
DE (1) DE1496862C3 (en)
GB (1) GB1023535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6583091B2 (en) 2001-07-13 2003-06-24 Exxonmobil Research And Engineering Company Method for inhibiting corrosion using 4-sulfophthalic acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021070865A (en) * 2019-10-29 2021-05-06 株式会社アート１ Aluminum metal material excellent in thermal resistance and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6583091B2 (en) 2001-07-13 2003-06-24 Exxonmobil Research And Engineering Company Method for inhibiting corrosion using 4-sulfophthalic acid

Also Published As

Publication number Publication date
DE1496862C3 (en) 1974-02-28
DE1496862B2 (en) 1973-07-19
DE1496862A1 (en) 1971-03-18
JPS4920463B1 (en) 1974-05-24

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