GB1374963A - Production of phosphate coatings on metals - Google Patents

Production of phosphate coatings on metals

Info

Publication number
GB1374963A
GB1374963A GB2020473A GB2020473A GB1374963A GB 1374963 A GB1374963 A GB 1374963A GB 2020473 A GB2020473 A GB 2020473A GB 2020473 A GB2020473 A GB 2020473A GB 1374963 A GB1374963 A GB 1374963A
Authority
GB
United Kingdom
Prior art keywords
solution
ratios
phosphate
metals
production
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
GB2020473A
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 Chemical Services Ltd
Original Assignee
Pyrene Chemical Services 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 Chemical Services Ltd filed Critical Pyrene Chemical Services Ltd
Priority to GB2020473A priority Critical patent/GB1374963A/en
Priority to FR7403967A priority patent/FR2227348B2/fr
Priority to BE141662A priority patent/BE811894R/en
Publication of GB1374963A publication Critical patent/GB1374963A/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

1374963 Phosphatizing PYRENE CHEMICAL SERVICES Ltd 27 April 1973 20204/73 Addition to 1297715 Heading C7U A surface predominantly of Al, steel, or Zn, is phosphatized using a solution containing Zn, C10 3 -, NO 3 - and F, the ratios of compounds in the solution being P 2 O 5 = 1; Zn = 0.2 to . @7; ClO 3 = O.2 to O.7; NO 3 = O.1 to 0.4 and 1@ = O.1 to 0.4, the concentration of phosphate (as P 2 O 5 ) being 3 to 25 g/l and the total acid points being 5 to 25 times the free acid points, and the solution is replenished by a solution in which the ratios are P 2 O 5 = 1; Zn = 0.2 to 0.7; ClO 3 = 0.01 to 0.25; NO 3 = greater than 0.08 up to 0.30 and F = 0.02 to 0.20, all ratios being by weight. The solution may also contain 0.001 to 0.025% Ni, Co, or Cu and 0.3 to 2 g/l of a metal accelerator or coating refining additive, e.g. a glycerophosphate, complex phosphate, tartaric or citric acid; the solution is applied at not more than 130‹F, e.g. 85-130‹ F. The F may be from a simple fluoride and/or a complex fluoride, e.g. a silicofluoride.
GB2020473A 1973-04-27 1973-04-27 Production of phosphate coatings on metals Expired GB1374963A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2020473A GB1374963A (en) 1973-04-27 1973-04-27 Production of phosphate coatings on metals
FR7403967A FR2227348B2 (en) 1973-04-27 1974-02-06
BE141662A BE811894R (en) 1973-04-27 1974-03-05 NEW PROCESS FOR PREPARING A PHOSPHATE COATING ON A METAL SURFACE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2020473A GB1374963A (en) 1973-04-27 1973-04-27 Production of phosphate coatings on metals

Publications (1)

Publication Number Publication Date
GB1374963A true GB1374963A (en) 1974-11-20

Family

ID=10142160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2020473A Expired GB1374963A (en) 1973-04-27 1973-04-27 Production of phosphate coatings on metals

Country Status (3)

Country Link
BE (1) BE811894R (en)
FR (1) FR2227348B2 (en)
GB (1) GB1374963A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203453A (en) * 1986-10-25 1988-10-19 Pyrene Chemical Services Ltd Phosphate coating solutions and processes
WO1998013535A1 (en) * 1996-09-26 1998-04-02 Henkel Kommanditgesellschaft Auf Aktien Phosphating method for installations with rapidly moving strips

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203453A (en) * 1986-10-25 1988-10-19 Pyrene Chemical Services Ltd Phosphate coating solutions and processes
GB2203453B (en) * 1986-10-25 1990-12-05 Pyrene Chemical Services Ltd Phosphate coating solutions and processes
WO1998013535A1 (en) * 1996-09-26 1998-04-02 Henkel Kommanditgesellschaft Auf Aktien Phosphating method for installations with rapidly moving strips

Also Published As

Publication number Publication date
BE811894R (en) 1974-07-01
FR2227348B2 (en) 1976-11-26
FR2227348A2 (en) 1974-11-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee