GB812080A - Improvements relating to the formation of chemical coatings on metal surfaces - Google Patents

Improvements relating to the formation of chemical coatings on metal surfaces

Info

Publication number
GB812080A
GB812080A GB2136456A GB2136456A GB812080A GB 812080 A GB812080 A GB 812080A GB 2136456 A GB2136456 A GB 2136456A GB 2136456 A GB2136456 A GB 2136456A GB 812080 A GB812080 A GB 812080A
Authority
GB
United Kingdom
Prior art keywords
valent
zirconium
solution
ions
sodium
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
GB2136456A
Inventor
George Roland King
Herbert Arthur Henry Jenkins
Dennis Brian Freeman
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 Co Ltd
Original Assignee
Pyrene Co 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
Priority to DENDAT1050633D priority Critical patent/DE1050633B/en
Application filed by Pyrene Co Ltd filed Critical Pyrene Co Ltd
Priority to GB2136456A priority patent/GB812080A/en
Priority to FR1178194D priority patent/FR1178194A/en
Publication of GB812080A publication Critical patent/GB812080A/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

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

A complex fluoride coating is formed on a zirconium or zirconium-base alloy surface by treating the surface with an aqueous solution having a pH of 2-6 and containing fluoride ions in a concentration of M/8-6M and potassium ions in a concentration of M/8-2M. The necessary acidity may be provided by hydrofluoric acid, sulphuric acid, sulphamic acid, bifluorides or bisulphates. Up to half the potassium can be replaced by an equivalent amount of other alkali metals or ammonium. 2-valent tin, 3-valent arsenic, 5-valent vanadium and 6-valent chromium may be included in the solution, e.g. as stannous chloride, sodium arsenate, sodium vanadate and sodium chromate. Nitrate ions and zirconium may also be incorporated in the solution. The coatings are stated to serve as a base for paints and to facilitate the cold-working of the metal.
GB2136456A 1956-07-10 1956-07-10 Improvements relating to the formation of chemical coatings on metal surfaces Expired GB812080A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DENDAT1050633D DE1050633B (en) 1956-07-10 Process for applying chemical coatings to zirconium and its alloys
GB2136456A GB812080A (en) 1956-07-10 1956-07-10 Improvements relating to the formation of chemical coatings on metal surfaces
FR1178194D FR1178194A (en) 1956-07-10 1957-07-04 Process for forming coatings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2136456A GB812080A (en) 1956-07-10 1956-07-10 Improvements relating to the formation of chemical coatings on metal surfaces

Publications (1)

Publication Number Publication Date
GB812080A true GB812080A (en) 1959-04-15

Family

ID=10161661

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2136456A Expired GB812080A (en) 1956-07-10 1956-07-10 Improvements relating to the formation of chemical coatings on metal surfaces

Country Status (3)

Country Link
DE (1) DE1050633B (en)
FR (1) FR1178194A (en)
GB (1) GB812080A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2336995A1 (en) * 1975-12-29 1977-07-29 Kabel Metallwerke Ghh Lubricant carrier layers on metal preforms - made by treatment with aq. solns of hydrogen and sodium fluorides

Also Published As

Publication number Publication date
FR1178194A (en) 1959-05-05
DE1050633B (en) 1959-07-16

Similar Documents

Publication Publication Date Title
ES348032A1 (en) Solutions for the deposition of protective layers on zinc surfaces and process therefor
Longstaff et al. The kinetics of oxidation by nitrous acid and nitric acid. Part II. Oxidation of formic acid in aqueous nitric acid
GB792739A (en) Methods and materials for the deoxidation of aluminium surfaces
GB957379A (en) Solutions and processes for the production of phosphate coatings on zinc metal surfaces
GB846363A (en) Improvements relating to the formation of chromate coatings on surfaces of aluminium and aluminium alloys
GB757050A (en) Improvements in the formation of phosphate coatings on metal surfaces
GB812080A (en) Improvements relating to the formation of chemical coatings on metal surfaces
ES350547A1 (en) Solutions for the deposition of protective surface layers on iron and zinc and process therefor
GB1267228A (en)
GB823373A (en) Improvements relating to the formation of coatings on metal surfaces
GB780230A (en) Improvements relating to the formation of chemical coatings on metal surfaces
GB1084426A (en) Improvements in the coating of metals
GB717852A (en) Improvements relating to the production of sulphide coatings on steel
GB943169A (en) Improvements relating to the phosphate-coating of metals
GB812665A (en) Improvements in or relating to the production of corrosion-resistant coatings on magnesium surfaces
GB893771A (en) Improvements in processes for the production of chemical conversion coatings upon aluminium and its alloys
GB836062A (en) Improvements in the formation of coatings on beryllium and alloys thereof
GB826912A (en) Improvements in the formation of coatings on titanium and alloys thereof
GB889322A (en) Improvements relating to the chromating of zinc and cadmium
GB764385A (en) Process for treating steel, zinc and aluminium to increase corrosion resistance
GB1061435A (en) Improvements in or relating to solutions and processes for the coating of zinc and its alloys
GB910134A (en) Improvements in or relating to the coating of aluminium surfaces
GB872321A (en) Phosphate coatings
GB1059207A (en) Methods of improving the corrosion-resistance of aluminum surfaces
GB740880A (en) Improvements in or relating to composition and process for the chemical brightening of aluminium