GB1374568A - Production of phosphate coatings on metals - Google Patents

Production of phosphate coatings on metals

Info

Publication number
GB1374568A
GB1374568A GB2020673A GB2020673A GB1374568A GB 1374568 A GB1374568 A GB 1374568A GB 2020673 A GB2020673 A GB 2020673A GB 2020673 A GB2020673 A GB 2020673A GB 1374568 A GB1374568 A GB 1374568A
Authority
GB
United Kingdom
Prior art keywords
solution
clo
ratios
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
GB2020673A
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 GB2020673A priority Critical patent/GB1374568A/en
Priority to FR7403966A priority patent/FR2227347B2/fr
Priority to BE141664A priority patent/BE811896R/en
Publication of GB1374568A publication Critical patent/GB1374568A/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
    • C23C22/07—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 phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/17—Orthophosphates containing zinc cations containing also organic acids
    • 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
    • C23C22/07—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 phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • C23C22/14—Orthophosphates containing zinc cations containing also chlorate anions

Abstract

1374568 Phosphatizing PYRENE CHEMICAL SERVICES Ltd 27 April 1973 20206/73 Addition to 1296883 Heading C7U A metal is phosphatized by application of a fluoride-free solution containing Zn, ClO 3 <SP>-</SP> and NO 3 <SP>-</SP>, the ratios of components being P 2 O 5 = 1; Zn = 0À2 to 0À7; ClO 3 = 0À2 to 0À5 and NO 3 <SP>-</SP> = 0À1 to 0À3. 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 periodically replenished with a mixture wherein the ratios are P 2 O 5 = 1; Zn = 0À2 to 0À7; ClO 3 = 0À01 to 0À25; and NO 3 = greater than 0À05 to not greater than 0À23, all ratios being by weight. The solution may also contain Ca, borate, 0À001 to 0À025% of Ni, Co, or Cu, and 0À3 to 2 g/l of a metal accelerator or coating refining additive, e.g. a glycerophosphate, complex phosphate, tartaric or citric acid, and the solution is applied to Fe, steel or Zn at not more than 130‹F, e.g. 85‹F to 130‹F.
GB2020673A 1973-04-27 1973-04-27 Production of phosphate coatings on metals Expired GB1374568A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2020673A GB1374568A (en) 1973-04-27 1973-04-27 Production of phosphate coatings on metals
FR7403966A FR2227347B2 (en) 1973-04-27 1974-02-06
BE141664A BE811896R (en) 1973-04-27 1974-03-05 PROCESS FOR PREPARING A PHOSPHATE REVOLUTION ON A METAL SURFACE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2020673A GB1374568A (en) 1973-04-27 1973-04-27 Production of phosphate coatings on metals

Publications (1)

Publication Number Publication Date
GB1374568A true GB1374568A (en) 1974-11-20

Family

ID=10142189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2020673A Expired GB1374568A (en) 1973-04-27 1973-04-27 Production of phosphate coatings on metals

Country Status (3)

Country Link
BE (1) BE811896R (en)
FR (1) FR2227347B2 (en)
GB (1) GB1374568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308696A1 (en) * 1975-04-23 1976-11-19 Ici Ltd Zinc phosphating esp. ferrous metals - with automatic control of additives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308696A1 (en) * 1975-04-23 1976-11-19 Ici Ltd Zinc phosphating esp. ferrous metals - with automatic control of additives

Also Published As

Publication number Publication date
BE811896R (en) 1974-07-01
FR2227347A2 (en) 1974-11-22
FR2227347B2 (en) 1976-10-08

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Legal Events

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