GB655079A - Improvements in or relating to the production of phosphate coatings - Google Patents

Improvements in or relating to the production of phosphate coatings

Info

Publication number
GB655079A
GB655079A GB4663/48A GB466348A GB655079A GB 655079 A GB655079 A GB 655079A GB 4663/48 A GB4663/48 A GB 4663/48A GB 466348 A GB466348 A GB 466348A GB 655079 A GB655079 A GB 655079A
Authority
GB
United Kingdom
Prior art keywords
metals
aluminium
production
iron
added
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
GB4663/48A
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 GB655079A publication Critical patent/GB655079A/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

In a process for the production of corrosion-resistant, paint-holding coatings on metals by the use of a general purpose solution effective on aluminium, iron and zinc surfaces, surfaces composed solely or preponderatingly of only one or two of these metals are subjected to the action of a hot aqueous solution containing soluble compounds of each of these metals, a dihydrogen phosphate, a complex fluoride and an oxidizing agent, the solution being maintained by adding thereto a soluble compound of the metal or metals absent from or only sparingly present in the surfaces undergoing treatment. The complex fluoride is preferably a fluoborate, added as such, or as boric acid and sodium bifluoride; the phosphate is zinc dihydrogen phosphate; and iron or aluminium is added as ferrous sulphate or aluminium nitrate. Specification 655,070 is referred to.
GB4663/48A 1946-09-11 1948-02-17 Improvements in or relating to the production of phosphate coatings Expired GB655079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US655079XA 1946-09-11 1946-09-11

Publications (1)

Publication Number Publication Date
GB655079A true GB655079A (en) 1951-07-11

Family

ID=22063213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4663/48A Expired GB655079A (en) 1946-09-11 1948-02-17 Improvements in or relating to the production of phosphate coatings

Country Status (2)

Country Link
DE (1) DE853695C (en)
GB (1) GB655079A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835617A (en) * 1955-01-26 1958-05-20 Parker Rust Proof Co Composition and method for coating metallic surfaces
US3519494A (en) * 1966-07-12 1970-07-07 Hooker Chemical Corp Method for coating ferrous metal surfaces

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE525407A (en) * 1952-06-18
US2795518A (en) * 1954-04-14 1957-06-11 American Chem Paint Co Process for treating steel, zinc, and aluminum to increase corrosion resistance
US2813814A (en) * 1954-08-05 1957-11-19 Parker Rust Proof Co Composition and process for forming phosphate coatings on titanium and zirconium
DE1088312B (en) * 1954-09-28 1960-09-01 Metallgesellschaft Ag Process for applying coatings to titanium and its alloys
DE1057847B (en) * 1954-09-28 1959-05-21 Metallgesellschaft Ag Process for the production of coatings on titanium and titanium alloys
DE1062086B (en) * 1958-04-22 1959-07-23 Chem Fab Gruenau Veb Process and solution for the production of phosphate layers on iron, aluminum, zinc and magnesium
NL288062A (en) * 1962-01-26

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2835617A (en) * 1955-01-26 1958-05-20 Parker Rust Proof Co Composition and method for coating metallic surfaces
US3519494A (en) * 1966-07-12 1970-07-07 Hooker Chemical Corp Method for coating ferrous metal surfaces

Also Published As

Publication number Publication date
DE853695C (en) 1952-10-27

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