GB1415999A - Process for forming phosphate coatings - Google Patents

Process for forming phosphate coatings

Info

Publication number
GB1415999A
GB1415999A GB2302874A GB2302874A GB1415999A GB 1415999 A GB1415999 A GB 1415999A GB 2302874 A GB2302874 A GB 2302874A GB 2302874 A GB2302874 A GB 2302874A GB 1415999 A GB1415999 A GB 1415999A
Authority
GB
United Kingdom
Prior art keywords
ions
peroxohydrate
ratio
phosphate coatings
contain
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
GB2302874A
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
Priority claimed from DE19732327304 external-priority patent/DE2327304C3/en
Priority claimed from DE19732342558 external-priority patent/DE2342558C3/en
Application filed by Pyrene Chemical Services Ltd filed Critical Pyrene Chemical Services Ltd
Publication of GB1415999A publication Critical patent/GB1415999A/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

1415999 Phosphating metal surfaces PYRENE CHEMICAL SERVICES Ltd 23 May 1974 [29 May 1973 23 Aug 1973] 23028/74 Heading C7U Phosphate coatings on steel, Zn or Al are formed by contacting the surface with an aqueous solution containing (g./l.) 0.5 to 10 Zn, 1.5 to 13 P 2 O 5 , 0.1 to SF, either as F or SiF 6 , and 0.02 to 0.15 H 2 O 2 , the temperature being 20 to 75‹C and the ratio of free to total acid from 1:5 to 1:30. The bath may also contain Cu, Ni, SO 4 , NH4, NO 3 , Cl ions and other additives e.g. condensed phosphates, citric or tartaric acids, tensodes, polysaccharides, polyethers, polyalcohols, polyectrolytes, polyamides or polycarboxylic acids. The ratio of Zn to P 2 O 5 ions in a replenishing solution is disclosed. A replenishment solution may also contain ZnO, ZnCO 3 , ZnF 2 , Zn, NiO, NiCO 3 , Na 2 CO 3 , NaHCO 3 , NaHPO 4 , Na 3 PO 4 , NaF or NaOH. The H202 may be introduced as H 2 O 2 , zinc peroxide, sodium carbonate, peroxohydrate or sodium phosphate peroxohydrate.
GB2302874A 1973-05-29 1974-05-23 Process for forming phosphate coatings Expired GB1415999A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732327304 DE2327304C3 (en) 1973-05-29 1973-05-29 Process for applying phosphate coatings to metals
DE19732342558 DE2342558C3 (en) 1973-08-23 1973-08-23 Process for phosphating metals

Publications (1)

Publication Number Publication Date
GB1415999A true GB1415999A (en) 1975-12-03

Family

ID=25765220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2302874A Expired GB1415999A (en) 1973-05-29 1974-05-23 Process for forming phosphate coatings

Country Status (1)

Country Link
GB (1) GB1415999A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142917A (en) * 1976-09-25 1979-03-06 Oxy Metal Industries Corporation Treatment of zinc surfaces to form a zinc phosphate coating
DE2851432A1 (en) * 1977-11-29 1979-06-13 Ici Ltd CONTINUOUS PROCEDURE FOR APPLYING A PHOSPHATE COATING TO A FERONIC OR ZINCIC METAL SUBSTRATE
US4595424A (en) * 1985-08-26 1986-06-17 Parker Chemical Company Method of forming phosphate coating on zinc
US5383982A (en) * 1992-12-19 1995-01-24 Metallgesellschaft Aktiengesellschaft Process of producing phosphate coatings
USRE35958E (en) * 1985-08-26 1998-11-17 Henkel Corporation Method of forming phosphate coating on zinc
US5904786A (en) * 1994-12-09 1999-05-18 Metallgesellschaft Aktiengesellschaft Method of applying phosphate coatings to metal surfaces
WO1999035307A1 (en) * 1998-01-07 1999-07-15 Henkel Corporation Composition and process for treating a metal surface
CN101278075B (en) * 2005-09-30 2012-05-16 汉高两合股份公司 Phosphatising solution with hydrogen peroxide and chelating carboxylic acids

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142917A (en) * 1976-09-25 1979-03-06 Oxy Metal Industries Corporation Treatment of zinc surfaces to form a zinc phosphate coating
DE2851432A1 (en) * 1977-11-29 1979-06-13 Ici Ltd CONTINUOUS PROCEDURE FOR APPLYING A PHOSPHATE COATING TO A FERONIC OR ZINCIC METAL SUBSTRATE
US4233087A (en) * 1977-11-29 1980-11-11 Imperial Chemical Industries Limited Phosphate coating process
US4595424A (en) * 1985-08-26 1986-06-17 Parker Chemical Company Method of forming phosphate coating on zinc
EP0213567A1 (en) * 1985-08-26 1987-03-11 HENKEL CORPORATION (a Delaware corp.) Process for applying phosphate coatings
USRE35958E (en) * 1985-08-26 1998-11-17 Henkel Corporation Method of forming phosphate coating on zinc
US5383982A (en) * 1992-12-19 1995-01-24 Metallgesellschaft Aktiengesellschaft Process of producing phosphate coatings
US5904786A (en) * 1994-12-09 1999-05-18 Metallgesellschaft Aktiengesellschaft Method of applying phosphate coatings to metal surfaces
WO1999035307A1 (en) * 1998-01-07 1999-07-15 Henkel Corporation Composition and process for treating a metal surface
CN101278075B (en) * 2005-09-30 2012-05-16 汉高两合股份公司 Phosphatising solution with hydrogen peroxide and chelating carboxylic acids

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Legal Events

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