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GB811645A - Improvements relating to the formation of phosphate coatings - Google Patents

Improvements relating to the formation of phosphate coatings

Info

Publication number
GB811645A
GB811645A GB1135956A GB1135956A GB811645A GB 811645 A GB811645 A GB 811645A GB 1135956 A GB1135956 A GB 1135956A GB 1135956 A GB1135956 A GB 1135956A GB 811645 A GB811645 A GB 811645A
Authority
GB
United Kingdom
Prior art keywords
solution
formation
nitrate
improvements relating
silicon
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
GB1135956A
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
Priority to GB1135956A priority Critical patent/GB811645A/en
Publication of GB811645A publication Critical patent/GB811645A/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

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

An aqueous solution suitable for phosphating ferrous and hot-dipped zinc-coated surfaces contains zinc or manganese dihydrogen phosphate, a nitrate and/or nitrite, nickel ions, and soluble silicon. The nickel may be introduced into the solution as the carbonate, nitrate chloride or sulphate, and the silicon may be derived from hydrofluosilicic acid or the silicofluoride of e.g. sodium, potassium or ammonium. The solution may also contain a metallic accelerator, e.g. copper. Hydrofluoric acid prevents precipitation in the solution and is used in the formation of concentrated make-up and replenishment solutions. The phosphated surface may be rinsed with chromic acid. U.S.A. Specification 2,197,622 is referred to.
GB1135956A 1956-04-13 1956-04-13 Improvements relating to the formation of phosphate coatings Expired GB811645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1135956A GB811645A (en) 1956-04-13 1956-04-13 Improvements relating to the formation of phosphate coatings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1135956A GB811645A (en) 1956-04-13 1956-04-13 Improvements relating to the formation of phosphate coatings

Publications (1)

Publication Number Publication Date
GB811645A true GB811645A (en) 1959-04-08

Family

ID=9984795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1135956A Expired GB811645A (en) 1956-04-13 1956-04-13 Improvements relating to the formation of phosphate coatings

Country Status (1)

Country Link
GB (1) GB811645A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211466B (en) * 1960-11-16 1966-02-24 Amchem S A Aqueous nickel-accelerated phosphating solutions and processes for their application
FR2159181A1 (en) * 1968-11-13 1973-06-22 Amchem Prod
WO2000008224A2 (en) * 1998-07-21 2000-02-17 Brent International Plc Nickel-zinc phosphate conversion coatings and process for making the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211466B (en) * 1960-11-16 1966-02-24 Amchem S A Aqueous nickel-accelerated phosphating solutions and processes for their application
FR2159181A1 (en) * 1968-11-13 1973-06-22 Amchem Prod
WO2000008224A2 (en) * 1998-07-21 2000-02-17 Brent International Plc Nickel-zinc phosphate conversion coatings and process for making the same
WO2000008224A3 (en) * 1998-07-21 2000-08-17 Brent Int Plc Nickel-zinc phosphate conversion coatings and process for making the same

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