GB957379A - Solutions and processes for the production of phosphate coatings on zinc metal surfaces - Google Patents

Solutions and processes for the production of phosphate coatings on zinc metal surfaces

Info

Publication number
GB957379A
GB957379A GB42264/62A GB4226462A GB957379A GB 957379 A GB957379 A GB 957379A GB 42264/62 A GB42264/62 A GB 42264/62A GB 4226462 A GB4226462 A GB 4226462A GB 957379 A GB957379 A GB 957379A
Authority
GB
United Kingdom
Prior art keywords
zinc
solution
phosphate
salts
fluoride radical
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
GB42264/62A
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.)
Amchem SA
Original Assignee
Amchem SA
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 Amchem SA filed Critical Amchem SA
Publication of GB957379A publication Critical patent/GB957379A/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

A phosphate coating is formed on zinc or zinc alloy surfaces by treating the surface with an aqueous acidic solution containing zinc phosphate, at least 0.1% by weight of glycerophosphate and at least 0.025% of a complex fluoride radical. The glycerophosphates may be glycerophosphoric acid or the alkali metal and ammonium mono and diglycerophosphate salts. The complex fluoride radical is provided by the addition to the solution of the following acids: fluoboric, fluosilicic, fluotitanic, fluozirconic, and their salts, particularly the alkali metal and ammonium salts. The solution contains 0.1-1% of the glycerophosphate, 0.025-2.5% of the fluoride radical, 0.5-2.5% phosphate ion, the zinc ion concentration not exceeding 0.5% by weight, and it may also contain 0.2-1% of a nitrate and/or 0.0002-0.008% of a nitrite, 0.0003-0.005% of copper ions, 0.01-0.4% of nickel ions and also wetting agents. The copper and nickel ions are formed by the addition of the carbonates, nitrates, chlorides, or sulphates of the metal and the acidity of the solution is less than 40 points. The zinc surface may be zinc or galvanized ferrous sheets and treatment is effected in the solution at 120-160 DEG F. for 7 seconds-10 minutes.
GB42264/62A 1962-01-26 1962-11-08 Solutions and processes for the production of phosphate coatings on zinc metal surfaces Expired GB957379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US169997A US3109757A (en) 1962-01-26 1962-01-26 Method and material for applying phosphate conversion coatings on zinciferous surfaces

Publications (1)

Publication Number Publication Date
GB957379A true GB957379A (en) 1964-05-06

Family

ID=22618092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42264/62A Expired GB957379A (en) 1962-01-26 1962-11-08 Solutions and processes for the production of phosphate coatings on zinc metal surfaces

Country Status (5)

Country Link
US (1) US3109757A (en)
BE (1) BE627337A (en)
DE (1) DE1243945B (en)
GB (1) GB957379A (en)
NL (2) NL120662C (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269876A (en) * 1962-12-13 1966-08-30 Rheem Mfg Co Glass-coated steel article
US3467589A (en) * 1966-10-19 1969-09-16 Hooker Chemical Corp Method of forming a copper containing protective coating prior to electrodeposition of paint
US3540943A (en) * 1968-08-08 1970-11-17 United States Steel Corp Method of making galvannealed ferrous metal of improved solderability
US3819424A (en) * 1971-06-17 1974-06-25 Oxy Metal Finishing Corp Method and composition for treating metal surfaces
US4148670A (en) * 1976-04-05 1979-04-10 Amchem Products, Inc. Coating solution for metal surface
US4427459A (en) 1982-01-25 1984-01-24 Pennwalt Corporation Phosphate conversion coatings for metals with reduced coating weights and crystal sizes
JPS6148597A (en) * 1984-08-14 1986-03-10 Nippon Paint Co Ltd Chemical conversion treatment giving zinc phosphate
US4595424A (en) * 1985-08-26 1986-06-17 Parker Chemical Company Method of forming phosphate coating on zinc
USRE35958E (en) * 1985-08-26 1998-11-17 Henkel Corporation Method of forming phosphate coating on zinc
US5082511A (en) * 1989-09-07 1992-01-21 Henkel Corporation Protective coating processes for zinc coated steel
US6551417B1 (en) 2000-09-20 2003-04-22 Ge Betz, Inc. Tri-cation zinc phosphate conversion coating and process of making the same
DE102010025707A1 (en) 2010-06-30 2012-01-05 Rheinzink Gmbh & Co. Kg Process for the preparation of protective coatings on flat titanium zinc products

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE707865C (en) * 1939-07-15 1941-07-05 I G Farbenindustrie Akt Ges Process for anti-rust treatment of iron and steel
GB655079A (en) * 1946-09-11 1951-07-11 Pyrene Co Ltd Improvements in or relating to the production of phosphate coatings
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

Also Published As

Publication number Publication date
NL120662C (en)
US3109757A (en) 1963-11-05
DE1243945B (en) 1967-07-06
NL288062A (en)
BE627337A (en)

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