GB985469A - Improvements relating to the coating of zinc surfaces - Google Patents

Improvements relating to the coating of zinc surfaces

Info

Publication number
GB985469A
GB985469A GB21500/63A GB2150063A GB985469A GB 985469 A GB985469 A GB 985469A GB 21500/63 A GB21500/63 A GB 21500/63A GB 2150063 A GB2150063 A GB 2150063A GB 985469 A GB985469 A GB 985469A
Authority
GB
United Kingdom
Prior art keywords
ion
phosphate
added
nitrate
coating
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
GB21500/63A
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
Application filed by Pyrene Co Ltd filed Critical Pyrene Co Ltd
Publication of GB985469A publication Critical patent/GB985469A/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
    • C23C22/07—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 phosphates
    • C23C22/08—Orthophosphates
    • 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
    • C23C22/05—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
    • C23C22/364—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 manganese cations

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 phosphate coating is formed on zinc surfaces, particularly those galvanized by hot-dipping, by treating them in one or more zones with a solution containing phosphate ion, e.g. 0.5-4% Zn and/or Mn ion, and as accelerators or activators one or more of Ni, Co, Cu, NO3-, NO2-and F-ion, e.g. 0.01-1% Co and/or Ni added as carbonate, sulphate, phosphate or nitrate and 0.03-1% F- ion added as HF, fluoborate or silicofluoride, and, when introduced initially into the treatment zones, containing at least 0.0015% of ferric ion, which is maintained during use. Preferably the total quantity of Co, Ni, Zn and Mn ion is at least sufficient to form H2PO4-with all the phosphate ion, and the solution is maintained saturated with the ferric ion, which may be added as phosphate, nitrate, chloride, fluoride or fluoborate. Alternatively, ferrous ion may be added with an oxidizing agent such as H2O2, permanganate or nitrate ion. The treatment may be by spraying or immersion in a bath. After phosphate coating, the surfaces may be rinsed in a dilute solution of chromic with or without phosphoric acid, e.g. one containing 0.025-0.1% CrO3. Specifications 560,847, 560,858, 587,176, 849,526 and U.S.A. Specification 2,874,081 are referred to.
GB21500/63A 1962-06-04 1963-05-29 Improvements relating to the coating of zinc surfaces Expired GB985469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US199619A US3240633A (en) 1962-06-04 1962-06-04 Method of forming phosphate coating on zinc

Publications (1)

Publication Number Publication Date
GB985469A true GB985469A (en) 1965-03-10

Family

ID=22738319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21500/63A Expired GB985469A (en) 1962-06-04 1963-05-29 Improvements relating to the coating of zinc surfaces

Country Status (8)

Country Link
US (1) US3240633A (en)
AT (1) AT255860B (en)
BE (1) BE633204A (en)
CH (1) CH427451A (en)
DE (1) DE1210656B (en)
ES (1) ES288449A1 (en)
GB (1) GB985469A (en)
NL (2) NL139776B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401235A1 (en) * 1977-08-25 1979-03-23 Parker Ste Continentale ZINC PHOSPHATION PROCESS ACCELERATED BY PEROXIDE
FR2401234A1 (en) * 1977-08-25 1979-03-23 Parker Ste Continentale ZINC PHOSPHATION PROCESS WITH THE ADDITION OF IRON

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297494A (en) * 1963-08-05 1967-01-10 Amchem Prod Concentrated material for use in preparing and preplenishing zinc phosphate coating solutions
US3269877A (en) * 1964-04-03 1966-08-30 Detrex Chem Ind Phosphate coating composition
US3642541A (en) * 1969-02-12 1972-02-15 Republic Steel Corp Method for applying corrosion-resistant composite coating to ferrous metals and product resulting therefrom
US3663327A (en) * 1969-08-13 1972-05-16 Chemed Corp Formulation and method for brightening aluminum
US3767478A (en) * 1971-09-14 1973-10-23 Ball Corp Method for producing patina on a zinc surface and article so formed
US4681641A (en) * 1982-07-12 1987-07-21 Ford Motor Company Alkaline resistant phosphate conversion coatings
US4595424A (en) * 1985-08-26 1986-06-17 Parker Chemical Company Method of forming phosphate coating on zinc
US4717431A (en) * 1987-02-25 1988-01-05 Amchem Products, Inc. Nickel-free metal phosphating composition and method for use
DE4443882A1 (en) * 1994-12-09 1996-06-13 Metallgesellschaft Ag Process for applying phosphate coatings on metal surfaces
US8062435B2 (en) * 2001-06-18 2011-11-22 Henkel Kommanditgesellschaft Auf Aktien Phosphating operation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB487851A (en) * 1935-09-26 1938-06-24 Patents Corp Coating process and product
US2346302A (en) * 1940-08-02 1944-04-11 American Rolling Mill Co Method and material for coating metal surfaces
US2479564A (en) * 1945-09-14 1949-08-23 Lloyd O Gilbert Phosphate coating of metallic articles
US2591479A (en) * 1947-05-12 1952-04-01 Parker Rust Proof Co Method of and solution for coating surfaces chiefly of zinc
US2487137A (en) * 1947-09-10 1949-11-08 Armco Steel Corp Producing coatings on metal
BE525407A (en) * 1952-06-18
DE1068818B (en) * 1954-06-16 1959-11-12
BE544622A (en) * 1955-01-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401235A1 (en) * 1977-08-25 1979-03-23 Parker Ste Continentale ZINC PHOSPHATION PROCESS ACCELERATED BY PEROXIDE
FR2401234A1 (en) * 1977-08-25 1979-03-23 Parker Ste Continentale ZINC PHOSPHATION PROCESS WITH THE ADDITION OF IRON

Also Published As

Publication number Publication date
US3240633A (en) 1966-03-15
CH427451A (en) 1966-12-31
AT255860B (en) 1967-07-25
ES288449A1 (en) 1963-12-16
DE1210656B (en) 1966-02-10
NL293566A (en)
BE633204A (en)
NL139776B (en) 1973-09-17

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