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GB2139646B - Sealing anodised aluminium - Google Patents
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GB2139646B - Sealing anodised aluminium - Google Patents

Sealing anodised aluminium

Info

Publication number
GB2139646B
GB2139646B GB08408870A GB8408870A GB2139646B GB 2139646 B GB2139646 B GB 2139646B GB 08408870 A GB08408870 A GB 08408870A GB 8408870 A GB8408870 A GB 8408870A GB 2139646 B GB2139646 B GB 2139646B
Authority
GB
United Kingdom
Prior art keywords
sealing
anodised aluminium
smut
inhibiting
sealing anodised
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
GB08408870A
Other versions
GB2139646A (en
GB8408870D0 (en
Inventor
Stanley Renton
John Richard Collier
Kenneth Urmaston Holker
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.)
Solvay Solutions UK Ltd
Original Assignee
Albright and Wilson 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 Albright and Wilson Ltd filed Critical Albright and Wilson Ltd
Publication of GB8408870D0 publication Critical patent/GB8408870D0/en
Publication of GB2139646A publication Critical patent/GB2139646A/en
Application granted granted Critical
Publication of GB2139646B publication Critical patent/GB2139646B/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
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Sealing Material Composition (AREA)
  • Catalysts (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Road Signs Or Road Markings (AREA)
  • Resistance Heating (AREA)
  • Casings For Electric Apparatus (AREA)
  • Gasket Seals (AREA)

Abstract

Processes for sealing anodised aluminium carried out in a bath having a pH of at least 7 and in the presence of a smut,inhibiting additive have been discovered to give rapid, efficient sealing without the formation of bloom. Examples of smut-inhibiting additives are phosphonates, benzene hexacarboxylic acid, and the reaction products of an aldehyde or dimethylol urea with sulphonated aromatic compounds. The reduction in time required for sealing reduces energy consumption in the anodising operation.
GB08408870A 1983-04-08 1984-04-06 Sealing anodised aluminium Expired GB2139646B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838309571A GB8309571D0 (en) 1983-04-08 1983-04-08 Accelerated sealing of anodised aluminium

Publications (3)

Publication Number Publication Date
GB8408870D0 GB8408870D0 (en) 1984-05-16
GB2139646A GB2139646A (en) 1984-11-14
GB2139646B true GB2139646B (en) 1987-07-29

Family

ID=10540815

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838309571A Pending GB8309571D0 (en) 1983-04-08 1983-04-08 Accelerated sealing of anodised aluminium
GB08408870A Expired GB2139646B (en) 1983-04-08 1984-04-06 Sealing anodised aluminium

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838309571A Pending GB8309571D0 (en) 1983-04-08 1983-04-08 Accelerated sealing of anodised aluminium

Country Status (10)

Country Link
EP (1) EP0122129B1 (en)
JP (1) JPS59197594A (en)
AT (1) ATE45396T1 (en)
AU (1) AU579098B2 (en)
BR (1) BR8401643A (en)
CA (1) CA1251416A (en)
DE (1) DE3479324D1 (en)
ES (1) ES8608589A1 (en)
GB (2) GB8309571D0 (en)
ZA (1) ZA842624B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820650A1 (en) * 1988-06-18 1989-12-21 Henkel Kgaa METHOD FOR COMPRESSING ANODIZED OXIDE LAYERS ON ALUMINUM AND ALUMINUM ALLOYS
DE3900169A1 (en) * 1989-01-05 1990-07-12 Henkel Kgaa METHOD OF IMPREGNIZING ANODICALLY PRODUCED SURFACES OF ALUMINUM
DE4210884C2 (en) * 1991-04-09 2000-10-05 Clariant Finance Bvi Ltd Cobalt- and nickel-free compaction preparations
ES2142619T3 (en) * 1995-10-18 2000-04-16 Henkel Kgaa HOT SEALING OF SHORT DURATION OF ANODIZED METALLIC SURFACES.
DE19621818A1 (en) * 1996-05-31 1997-12-04 Henkel Kgaa Short-term hot compression of anodized metal surfaces with solutions containing surfactants
JP3406191B2 (en) * 1997-07-15 2003-05-12 富士電機株式会社 Electrophotographic photoreceptor substrate and electrophotographic photoreceptor
WO2001036717A1 (en) * 1999-11-18 2001-05-25 Houghton Metal Finishing A sealant composition
CN1306071C (en) * 2001-08-14 2007-03-21 镁技术有限公司 Magnesium anodizing system and method
CN101736386B (en) * 2008-11-27 2011-11-16 比亚迪股份有限公司 Aluminium alloy sealing agent
EP3931370B1 (en) 2019-03-01 2024-07-03 Howmet Aerospace Inc. Metallic substrate treatment methods and articles comprising a phosphonate functionalized layer

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB991114A (en) * 1960-09-30 1965-05-05 Reynolds Metals Co Improvements in sealing of anodic oxide films on aluminium
BE755573A (en) * 1969-09-02 1971-03-01 Henkel & Cie Gmbh PROCESS FOR TREATING ALUMINUM SURFACES AND ALUMINIU ALLOYS
DE2062661A1 (en) * 1970-12-19 1972-06-22 Henkel & Cie Gmbh Process to prevent deposits in the redensification of anodically oxidized aluminum surfaces
DE2211553C3 (en) * 1972-03-10 1978-04-20 Henkel Kgaa, 4000 Duesseldorf Process for compacting anodic oxide layers on aluminum and aluminum alloys
US3961111A (en) * 1975-03-18 1976-06-01 Pennwalt Corporation Method of increasing corrosion resistance of anodized aluminum
JPS5235017A (en) * 1975-09-11 1977-03-17 Nippon Signal Co Ltd:The Train control system
DE2650989C2 (en) * 1976-11-08 1985-01-24 Henkel KGaA, 4000 Düsseldorf Process for the treatment of aluminum surfaces by oxidation with subsequent compaction
CH645929A5 (en) * 1978-09-07 1984-10-31 Alusuisse RE-COMPRESSION BATH FOR ANODICALLY OXIDIZED SURFACES MADE OF ALUMINUM OR ALUMINUM ALLOYS AND USE OF THE BATH.
DE2855508A1 (en) * 1978-12-22 1980-07-10 Basf Ag METHOD FOR PRODUCING BENZALDEHYDES
CH655519B (en) * 1981-08-28 1986-04-30
DE3219922A1 (en) * 1982-05-27 1983-12-01 Hoechst Ag, 6230 Frankfurt METHOD FOR TREATING ALUMINUM OXIDE LAYERS WITH AQUEOUS SOLUTIONS CONTAINING ALKALISILICATE AND THE USE THEREOF IN THE PRODUCTION OF OFFSET PRINT PLATE CARRIERS
CH654853A5 (en) * 1982-08-07 1986-03-14 Sandoz Ag METHOD FOR COMPRESSING ANODICALLY OXYDED ALUMINUM SURFACES.

Also Published As

Publication number Publication date
ES531380A0 (en) 1986-06-16
CA1251416A (en) 1989-03-21
AU2671884A (en) 1984-10-11
GB2139646A (en) 1984-11-14
EP0122129A2 (en) 1984-10-17
ZA842624B (en) 1984-11-28
GB8309571D0 (en) 1983-05-11
BR8401643A (en) 1984-11-20
EP0122129B1 (en) 1989-08-09
GB8408870D0 (en) 1984-05-16
ES8608589A1 (en) 1986-06-16
EP0122129A3 (en) 1985-09-18
JPS59197594A (en) 1984-11-09
DE3479324D1 (en) 1989-09-14
ATE45396T1 (en) 1989-08-15
AU579098B2 (en) 1988-11-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030406