GB1125230A - Improvements in or relating to the production of chemical conversion coatings upon aluminium surfaces - Google Patents

Improvements in or relating to the production of chemical conversion coatings upon aluminium surfaces

Info

Publication number
GB1125230A
GB1125230A GB46319/66A GB4631966A GB1125230A GB 1125230 A GB1125230 A GB 1125230A GB 46319/66 A GB46319/66 A GB 46319/66A GB 4631966 A GB4631966 A GB 4631966A GB 1125230 A GB1125230 A GB 1125230A
Authority
GB
United Kingdom
Prior art keywords
gms
litre
phosphate
titanium
ion
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
GB46319/66A
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.)
Henkel Corp
Original Assignee
Amchem Products Inc
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 Amchem Products Inc filed Critical Amchem Products Inc
Publication of GB1125230A publication Critical patent/GB1125230A/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
    • C23C22/06—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
    • C23C22/34—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 containing fluorides or complex fluorides
    • C23C22/36—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 containing fluorides or complex fluorides containing also phosphates
    • C23C22/362—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 containing fluorides or complex fluorides containing also phosphates containing also zinc cations
    • 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
    • C23C22/78—Pretreatment of the material to be coated
    • C23C22/80—Pretreatment of the material to be coated with solutions containing titanium or zirconium compounds

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)
  • Chemically Coating (AREA)

Abstract

1,125,230. Phosphating aluminium & its alloys. AMCHEM PRODUCTS, Inc. Oct. 17, 1966 [Oct. 26, 1965], No. 46319/66. Heading C7U. Fine grained zinc phosphate coatings are formed on aluminium and its alloys in a two stage process comprising 1) treating with an aqueous solution of a phosphate/titanium activator containing 0.45- 4.5 gms/ litre phosphate and 0.005 - 0.05 gms/ litre titanium and then without intermediate rinsing 2) treating with an aqueous nitrate accelerated zinc phosphate solution containing at least 3 gms/ litre silicofluoride ion (preferably 4 - 6 gms/ 1), 0À06 to 0.2 gms/litre ferrous ion and 0.01 - 5 gms/ litre of free fluoride ion. The phosphate/ titanium activators consist essentially of the dried residue of a solution or dispersion of a soluble or part soluble titanium compound in an aqueous solution consisting at least mainly of disodium orthophosphate or pyrophosphate e. g. titanium potassium oxalate and disodium phosphate. The silicofluoride ions are supplied in the form of alkali metal or ammonium silicofluoride or as fluosilicic acid. The free fluoride is supplied as hydrofluoric acid or a simple salt and the ferrous ion as ferrous sulphate.
GB46319/66A 1965-10-26 1966-10-17 Improvements in or relating to the production of chemical conversion coatings upon aluminium surfaces Expired GB1125230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50543265A 1965-10-26 1965-10-26

Publications (1)

Publication Number Publication Date
GB1125230A true GB1125230A (en) 1968-08-28

Family

ID=24010289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46319/66A Expired GB1125230A (en) 1965-10-26 1966-10-17 Improvements in or relating to the production of chemical conversion coatings upon aluminium surfaces

Country Status (2)

Country Link
DE (1) DE1521677B1 (en)
GB (1) GB1125230A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136454A (en) * 1983-03-02 1984-09-19 Pyrene Chemical Services Ltd Treatment of metal prior to coating with zinc phosphate
US11518960B2 (en) 2016-08-24 2022-12-06 Ppg Industries Ohio, Inc. Alkaline molybdenum cation and phosphonate-containing cleaning composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029956A1 (en) * 1990-09-21 1992-03-26 Metallgesellschaft Ag PHOSPHATING PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136454A (en) * 1983-03-02 1984-09-19 Pyrene Chemical Services Ltd Treatment of metal prior to coating with zinc phosphate
US11518960B2 (en) 2016-08-24 2022-12-06 Ppg Industries Ohio, Inc. Alkaline molybdenum cation and phosphonate-containing cleaning composition

Also Published As

Publication number Publication date
DE1521677B1 (en) 1970-04-30

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