GB1505635A - Process for treating metal surfaces - Google Patents

Process for treating metal surfaces

Info

Publication number
GB1505635A
GB1505635A GB312477A GB312477A GB1505635A GB 1505635 A GB1505635 A GB 1505635A GB 312477 A GB312477 A GB 312477A GB 312477 A GB312477 A GB 312477A GB 1505635 A GB1505635 A GB 1505635A
Authority
GB
United Kingdom
Prior art keywords
tif
acid
tannin
alkaline solution
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.)
Expired
Application number
GB312477A
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.)
Pyrene Chemical Services Ltd
Original Assignee
Pyrene Chemical Services 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 Pyrene Chemical Services Ltd filed Critical Pyrene Chemical Services Ltd
Publication of GB1505635A publication Critical patent/GB1505635A/en
Expired 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
    • C23C22/60—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 alkaline aqueous solutions with pH greater than 8
    • C23C22/66—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)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

1505635 Coating aluminium with titanium solutions and tannin or tannic acid PYRENE CHEMICAL SERVICES Ltd 26 Jan 1977 [26 Jan 1976] 03124/77 Heading C7U Al or Al alloy surfaces are coated by treating with an aqueous alkaline solution containing Ti ions and a complexing agent, rinsing with water and then treating with an aqueous acid solution containing tannin or tannic acid. The pH of the alkaline solution may be 10-14, the Ti ion concentration 0À01-10g/l and the complexing agent is preferably hexahydroxyheptonic acid, sodium gluconate, sodium heptogluconate or sodium edetate. The pH of the acid solution may be 1À5-6 with a tannin or tannic acid concentration of 0À1-50g/l. Suitable Ti compounds in the alkaline solution are H 2 TiF 6 , Li 2 TiF 6 , Na 2 TiF 6 , K 2 TiF 6 , (NH 4 ) 2 TiF 6 , TiOSO 4 , Ti(SO 4 ) 2 , Ti(SO 4 ) 3 , Ti(OH) 4 and TiCl 4 . The acid solution may include phosphoric, boric, polyphosphoric, phytic, HF, hydrosilicofluoric, borufluoric acids, then alkali metal salts, Ti hydrofluoride and Zr hydro fluoride.
GB312477A 1976-01-26 1977-01-26 Process for treating metal surfaces Expired GB1505635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP658076A JPS5290434A (en) 1976-01-26 1976-01-26 Surface treatment of aluminum and its alloy

Publications (1)

Publication Number Publication Date
GB1505635A true GB1505635A (en) 1978-03-30

Family

ID=11642255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB312477A Expired GB1505635A (en) 1976-01-26 1977-01-26 Process for treating metal surfaces

Country Status (3)

Country Link
JP (1) JPS5290434A (en)
AU (1) AU2171377A (en)
GB (1) GB1505635A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133044A (en) * 1983-01-10 1984-07-18 Pennwalt Corp Cleaning and etching process for aluminum containers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160527A (en) * 1977-10-14 1979-12-19 Nippon Packaging Kk Surface treatment for aluminum and alloy thereof
JPS609983Y2 (en) * 1979-12-29 1985-04-06 株式会社ヨコオ Cassette tape recorder cassette storage opening buffer device
JP3998057B2 (en) * 2002-04-23 2007-10-24 日本ペイント株式会社 Non-chromium metal surface treatment method and aluminum or aluminum alloy plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133044A (en) * 1983-01-10 1984-07-18 Pennwalt Corp Cleaning and etching process for aluminum containers
US4477290A (en) * 1983-01-10 1984-10-16 Pennwalt Corporation Cleaning and etching process for aluminum containers

Also Published As

Publication number Publication date
JPS5519315B2 (en) 1980-05-24
AU2171377A (en) 1978-08-03
JPS5290434A (en) 1977-07-29

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Legal Events

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