GB984055A - Anti-corrosion product - Google Patents

Anti-corrosion product

Info

Publication number
GB984055A
GB984055A GB2224263A GB2224263A GB984055A GB 984055 A GB984055 A GB 984055A GB 2224263 A GB2224263 A GB 2224263A GB 2224263 A GB2224263 A GB 2224263A GB 984055 A GB984055 A GB 984055A
Authority
GB
United Kingdom
Prior art keywords
solution
alkali metal
metal salt
zinc
potassium
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
GB2224263A
Inventor
Guillaume Duchange
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.)
PROTIME SOC
Original Assignee
PROTIME SOC
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 PROTIME SOC filed Critical PROTIME SOC
Priority to GB2224263A priority Critical patent/GB984055A/en
Publication of GB984055A publication Critical patent/GB984055A/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
    • C23C22/24—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 hexavalent chromium compounds
    • C23C22/33—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 hexavalent chromium compounds containing also phosphates

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

A phosphating solution for treating metals is formed by reacting iron with an aqueous solution containing an alkali metal salt of chromic acid, an alkali metal salt of phosphoric acid, orthophosphoric acid and a zinc compound such as zinc oxide or zinc sulphate, the reacting iron being removed when the solution turns green and has a pH of 1.5-2.5. Potassium or sodium nitrate, wetting agents, emulsifiers, surface activators and cellulose esters may also be present in the solution. The chromate may be sodium or potassium bichromate and the phosphate mono-, di-, or trisodium phosphate. The solutions when used in treating metal surfaces combine the effects of descaling, inhibiting and forming a protective film.
GB2224263A 1963-06-04 1963-06-04 Anti-corrosion product Expired GB984055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2224263A GB984055A (en) 1963-06-04 1963-06-04 Anti-corrosion product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2224263A GB984055A (en) 1963-06-04 1963-06-04 Anti-corrosion product

Publications (1)

Publication Number Publication Date
GB984055A true GB984055A (en) 1965-02-24

Family

ID=10176210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2224263A Expired GB984055A (en) 1963-06-04 1963-06-04 Anti-corrosion product

Country Status (1)

Country Link
GB (1) GB984055A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179960A (en) * 1985-09-06 1987-03-18 Parker Chemical Co Passivation of zinc and zinc-aluminium alloys
CN102817022A (en) * 2012-07-28 2012-12-12 蚌埠市福沃特车轮制造科技有限公司 Normal-temperature phosphating solution containing sodium thiosulfate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179960A (en) * 1985-09-06 1987-03-18 Parker Chemical Co Passivation of zinc and zinc-aluminium alloys
AU590885B2 (en) * 1985-09-06 1989-11-23 Parker Chemical Company Passivation process and composition for zinc-aluminum alloys
GB2179960B (en) * 1985-09-06 1990-01-24 Parker Chemical Co Passivation process and composition for zinc and zinc-aluminium alloys
CN102817022A (en) * 2012-07-28 2012-12-12 蚌埠市福沃特车轮制造科技有限公司 Normal-temperature phosphating solution containing sodium thiosulfate

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