GB1451145A - Corrosion-resistant metal coatings - Google Patents

Corrosion-resistant metal coatings

Info

Publication number
GB1451145A
GB1451145A GB809374A GB809374A GB1451145A GB 1451145 A GB1451145 A GB 1451145A GB 809374 A GB809374 A GB 809374A GB 809374 A GB809374 A GB 809374A GB 1451145 A GB1451145 A GB 1451145A
Authority
GB
United Kingdom
Prior art keywords
litre
phosphate
aluminium
ions
coating
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
GB809374A
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
Publication of GB1451145A publication Critical patent/GB1451145A/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
    • C23C22/20—Orthophosphates containing aluminium cations
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/36—Phosphatising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrochemical Coating By Surface Reaction (AREA)

Abstract

1451145 Phosphate coating; electrolytic phosphate coating PYRENE CHEMICAL SERVICES Ltd 22 Feb 1974 [27 Feb 1973] 8093/74 Headings C7B and C7U Aluminium phosphate corrosion resistant coatings on metal surfaces such as iron, steel, zinc or zinc-galvanized steel, aluminium or aluminium alloys are produced by immersion or spraying with phosphating solutions of pH 1À5 to 3À5 containing phosphate and aluminium ions. The solution composition is 0À01 to 10 g/litre (preferably 0À2-3 g/litre) aluminium ions from compounds such as aluminium nitrate, hydroxide or sulphate, 1 to 100 g/litre (preferably 5-50 g/litre) phosphate ions from phosphoric acid, sodium dehydrogen phosphate or desodium hydrogen phosphate, with nitrate and/or chlorate ions up to 20 g/litre (preferably 1-5 g/l) and/or nickel ions up to 5 g/litre (preferably 0À01-2 g/l) as optional oxidizing or coating promotors. Up to 10 g/litre sulphate ions may be added to increase coating weight. Coating may be either by immersion dipping for 1-5minutes at 30-90‹C or by electrolytic conversion using either alternating or direct current techniques. Saline spray testing of coated samples showed similar or improved corrosion resistance over conventially coated samples made by zinc or iron phosphating or chromating.
GB809374A 1973-02-27 1974-02-22 Corrosion-resistant metal coatings Expired GB1451145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2261973A JPS536945B2 (en) 1973-02-27 1973-02-27

Publications (1)

Publication Number Publication Date
GB1451145A true GB1451145A (en) 1976-09-29

Family

ID=12087837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB809374A Expired GB1451145A (en) 1973-02-27 1974-02-22 Corrosion-resistant metal coatings

Country Status (4)

Country Link
JP (1) JPS536945B2 (en)
DE (1) DE2406411A1 (en)
FR (1) FR2219245B1 (en)
GB (1) GB1451145A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016263A1 (en) * 2000-08-23 2002-02-28 Applied Thin Films, Inc. High temperature amorphous composition based on aluminum phosphate
EP1743955A2 (en) 2005-07-15 2007-01-17 NHK Spring Co., Ltd. Steel product excellent in corrosion resistance and corrosion fatigue resistance, and surface treatment method therefor
US7208196B2 (en) 2000-10-13 2007-04-24 Applied Thin Films, Inc. Epitaxial oxide films via nitride conversion
US7311944B2 (en) 2002-12-23 2007-12-25 Applied Thin Films, Inc. Aluminum phosphate coatings
US7678465B2 (en) 2002-07-24 2010-03-16 Applied Thin Films, Inc. Aluminum phosphate compounds, compositions, materials and related metal coatings
US7682700B2 (en) 2002-08-14 2010-03-23 Applied Thin Films, Inc. Aluminum phosphate compounds, compositions, materials and related composites
US8021758B2 (en) 2002-12-23 2011-09-20 Applied Thin Films, Inc. Aluminum phosphate compounds, coatings, related composites and applications

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5347774B2 (en) * 1973-07-28 1978-12-23
JPS5935991B2 (en) * 1977-03-07 1984-08-31 デイツプソ−ル株式会社 Corrosion prevention treatment method for metal surfaces
FR2426097A1 (en) * 1978-05-19 1979-12-14 Chaffoteaux Et Maury METHOD AND COMPOSITION FOR THE FORMATION OF PROTECTIVE COATINGS ON ZINC SURFACES, AND OBJECTS THUS PROTECTED
ES8203984A1 (en) * 1980-07-01 1982-04-01 Bnf Metals Tech Centre Method of producing conversion coatings.
DE3337794A1 (en) * 1982-11-02 1984-05-03 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR PREPARING METAL SURFACES FOR ELECTRO DIP PAINTING
JPH0730459B2 (en) * 1987-08-03 1995-04-05 日本パ−カライジング株式会社 Ceramic coating method on metal
US4895608A (en) * 1988-04-29 1990-01-23 Sanchem, Inc. Corrosion resistant aluminum coating composition
US5478413A (en) * 1994-12-27 1995-12-26 Sermatech International, Inc. Environmentally friendly coating compositions
JP6959286B2 (en) * 2019-03-28 2021-11-02 神東塗料株式会社 Chemical conversion liquid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2564864A (en) * 1948-07-02 1951-08-21 Parker Rust Proof Co Method of and solution for increasing resistance to corrosion
DE1287890B (en) * 1961-03-23 1900-01-01

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002016263A1 (en) * 2000-08-23 2002-02-28 Applied Thin Films, Inc. High temperature amorphous composition based on aluminum phosphate
US6461415B1 (en) 2000-08-23 2002-10-08 Applied Thin Films, Inc. High temperature amorphous composition based on aluminum phosphate
US7208196B2 (en) 2000-10-13 2007-04-24 Applied Thin Films, Inc. Epitaxial oxide films via nitride conversion
US7678465B2 (en) 2002-07-24 2010-03-16 Applied Thin Films, Inc. Aluminum phosphate compounds, compositions, materials and related metal coatings
US8124184B2 (en) 2002-07-24 2012-02-28 Applied Thin Films, Inc. Aluminum phosphate compounds, compositions, materials and related metal coatings
US7682700B2 (en) 2002-08-14 2010-03-23 Applied Thin Films, Inc. Aluminum phosphate compounds, compositions, materials and related composites
US7311944B2 (en) 2002-12-23 2007-12-25 Applied Thin Films, Inc. Aluminum phosphate coatings
US8021758B2 (en) 2002-12-23 2011-09-20 Applied Thin Films, Inc. Aluminum phosphate compounds, coatings, related composites and applications
EP1743955A2 (en) 2005-07-15 2007-01-17 NHK Spring Co., Ltd. Steel product excellent in corrosion resistance and corrosion fatigue resistance, and surface treatment method therefor
EP1743955A3 (en) * 2005-07-15 2007-01-24 NHK Spring Co., Ltd. Steel product excellent in corrosion resistance and corrosion fatigue resistance, and surface treatment method therefor

Also Published As

Publication number Publication date
DE2406411A1 (en) 1974-08-29
JPS536945B2 (en) 1978-03-13
FR2219245A1 (en) 1974-09-20
JPS49111836A (en) 1974-10-24
FR2219245B1 (en) 1976-12-03

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Legal Events

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