GB1297715A - - Google Patents

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Publication number
GB1297715A
GB1297715A GB1297715DA GB1297715A GB 1297715 A GB1297715 A GB 1297715A GB 1297715D A GB1297715D A GB 1297715DA GB 1297715 A GB1297715 A GB 1297715A
Authority
GB
United Kingdom
Prior art keywords
solution
zinc
fluoride
acid points
clo
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
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 filed Critical
Publication of GB1297715A publication Critical patent/GB1297715A/en
Expired legal-status Critical Current

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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

1297715 Phosphating aluminium, steel or zinc surfaces CHUBB FIRE SECURITY Ltd 19 April 1971 [4 March 1970] 3727/71 Divided out of 1296883 Heading C7U A process for coating a surface consisting predominantly of aluminium, steel, or zinc comprises employing a solution containing phosphate, zinc, chlorate, nitrate, and fluoride in the ratios by weight of P 2 O 5 = 1, Zn = 0À2-0À7, ClO 3 = 0À2-0À7, NO 3 = 0À1-0À4, and F = 0À1-0À4, the total acid points being 8-25 times the free acid points. The total acid points and free acid points are defined as the numbers of cubic centimetres of N/10 sodium hydroxide required to titrate 10 cc of solution when phenolphthalein and methyl orange are used respectively as indicators. The fluoride ion is preferably derived from both a simple fluoride and a complex fluoride, such as fluosilicate, fluoborate, and fluotitanate. The solution may also contain 0À001-0À025% w/w nickel, cobalt, or copper as a metal accelerator, tartaric acid, citric acid, or calcium, and the free acidity may be adjusted with zinc carbonate, zinc oxide, caustic soda, or sodium carbonate. The solution is applied at a temperature of 85-130‹F., for example, by spraying. The solution is periodically replenished by a solution containing P 2 O 5 = 1, Zn = 0À2-0À7, ClO 3 = 0À01-0À15, NO 3 = 0À01-0À08, and F = 0À02-0À08. Specification 1296883 is referred to.
GB1297715D 1971-02-02 1970-03-04 Expired GB1297715A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB372771 1971-02-02

Publications (1)

Publication Number Publication Date
GB1297715A true GB1297715A (en) 1972-11-29

Family

ID=9763811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1297715D Expired GB1297715A (en) 1971-02-02 1970-03-04

Country Status (1)

Country Link
GB (1) GB1297715A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486241A (en) * 1981-09-17 1984-12-04 Amchem Products, Inc. Composition and process for treating steel
GB2195359A (en) * 1986-09-18 1988-04-07 Pyrene Chemical Services Ltd Process for producing phosphate coatings on metal surfaces
GB2203453A (en) * 1986-10-25 1988-10-19 Pyrene Chemical Services Ltd Phosphate coating solutions and processes
US5211769A (en) * 1989-12-19 1993-05-18 Nippon Paint Co., Ltd. Method for phosphating metal surface with zinc phosphate
US5308413A (en) * 1990-04-24 1994-05-03 Nippon Paint Co., Ltd. Process for phosphating metal surface to make thereon a zinc phosphate coating film

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486241A (en) * 1981-09-17 1984-12-04 Amchem Products, Inc. Composition and process for treating steel
GB2195359A (en) * 1986-09-18 1988-04-07 Pyrene Chemical Services Ltd Process for producing phosphate coatings on metal surfaces
GB2195359B (en) * 1986-09-18 1990-06-27 Pyrene Chemical Services Ltd Process for producing phosphate coatings on metal surfaces
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
US5211769A (en) * 1989-12-19 1993-05-18 Nippon Paint Co., Ltd. Method for phosphating metal surface with zinc phosphate
US5399208A (en) * 1989-12-19 1995-03-21 Nippon Paint Co., Ltd. Method for phosphating metal surface with zinc phosphate
US5308413A (en) * 1990-04-24 1994-05-03 Nippon Paint Co., Ltd. Process for phosphating metal surface to make thereon a zinc phosphate coating film

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Legal Events

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