[go: up one dir, main page]

GR3035554T3 - Non-chromated oxide coating for aluminum substrates. - Google Patents

Non-chromated oxide coating for aluminum substrates.

Info

Publication number
GR3035554T3
GR3035554T3 GR20010400395T GR20010400395T GR3035554T3 GR 3035554 T3 GR3035554 T3 GR 3035554T3 GR 20010400395 T GR20010400395 T GR 20010400395T GR 20010400395 T GR20010400395 T GR 20010400395T GR 3035554 T3 GR3035554 T3 GR 3035554T3
Authority
GR
Greece
Prior art keywords
cobalt
conversion coating
solution
hexavalent complex
iii hexavalent
Prior art date
Application number
GR20010400395T
Other languages
Greek (el)
Inventor
Matthias P Schriever
Original Assignee
Boeing Co
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 US07/903,853 external-priority patent/US5411606A/en
Application filed by Boeing Co filed Critical Boeing Co
Publication of GR3035554T3 publication Critical patent/GR3035554T3/en

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
    • C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/56—Treatment of aluminium or alloys based thereon
    • 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
    • C23C22/60—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 alkaline aqueous solutions with pH greater than 8
    • C23C22/66—Treatment of aluminium or alloys based thereon
    • 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
    • C23C22/68—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 solutions with pH between 6 and 8

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)
  • Paints Or Removers (AREA)
  • Chemically Coating (AREA)
  • Insulated Metal Substrates For Printed Circuits (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

(A) A process for forming a cobalt conversion coating on a metal substrate, thereby imparting corrosion resistance and paint adhesion properties. The invention was developed as a replacement for the prior art chromic acid process. The process includes the steps of: (a) providing a cobalt conversion solution comprising an aqueous solution containing a soluble cobalt-III hexavalent complex, the concentration of the cobalt-III hexavalent complex being from about 0.01 mole per liter of solution to the solubility limit of the cobalt-III hexavalent complex; and (b) contacting the substrate with the solution for a sufficient amount of time, whereby the cobalt conversion coating is formed. The substrate may be aluminum or aluminum alloy, as well as Cd plated, Zn plated, Zn-Ni plated, and steel. The cobalt-III hexavalent complex may be present in the form of Mem(Co(R)6)n, wherein Me is Na, Li, K, Ca, Zn, Mg, or Mn, and wherein m is 2 or 3, n is 1 or 2, and R is a carboxylate having from 1 to 5 C atoms. (B) A chemical conversion coating solution for producing the cobalt conversion coating on a metal substrate, the solution including an aqueous solution containing a soluble cobalt-III hexavalent complex, the concentration of the cobalt-III hexavalent complex being from about 0.01 mole per liter of solution to the solubility limit of the cobalt-III hexavalent complex. (C) A coated article exhibiting acceptable corrosion resistance and paint adhesion properties, the article including: (a) a metal substrate; and (b) a cobalt conversion coating formed on the substrate, the cobalt conversion coating including aluminum oxide Al2O3 as the largest volume percent, and cobalt oxides CoO, Co2O3, and Co3O4.
GR20010400395T 1992-06-25 2001-03-09 Non-chromated oxide coating for aluminum substrates. GR3035554T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/903,853 US5411606A (en) 1990-05-17 1992-06-25 Non-chromated oxide coating for aluminum substrates
CNB931017378A CN1138873C (en) 1992-06-25 1993-01-18 Non-chromated oxide coating for aluminum substrates
PCT/EP1993/001630 WO1994000619A1 (en) 1992-06-25 1993-06-23 Non-chromated oxide coating for aluminum substrates

Publications (1)

Publication Number Publication Date
GR3035554T3 true GR3035554T3 (en) 2001-06-29

Family

ID=36793885

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20010400395T GR3035554T3 (en) 1992-06-25 2001-03-09 Non-chromated oxide coating for aluminum substrates.

Country Status (18)

Country Link
EP (1) EP0646187B1 (en)
JP (1) JP3345010B2 (en)
CN (2) CN1138873C (en)
AT (1) ATE198631T1 (en)
AU (1) AU687740B2 (en)
BR (1) BR9306602A (en)
CA (1) CA2138790C (en)
DE (1) DE69329853T2 (en)
DK (1) DK0646187T3 (en)
ES (1) ES2152950T3 (en)
GR (1) GR3035554T3 (en)
MX (1) MX9303745A (en)
NO (1) NO315522B1 (en)
NZ (1) NZ253699A (en)
RU (1) RU2135637C1 (en)
SG (1) SG43169A1 (en)
WO (1) WO1994000619A1 (en)
ZA (1) ZA934544B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5551994A (en) * 1990-05-17 1996-09-03 The Boeing Company Non-chromated oxide coating for aluminum substrates
DK0523288T3 (en) * 1991-07-19 1999-08-02 Boeing Co Non-chromated oxide coatings for aluminum substrates
US5948178A (en) * 1995-01-13 1999-09-07 Henkel Corporation Composition and process for forming a solid adherent protective coating on metal surfaces
WO1996021753A1 (en) * 1995-01-13 1996-07-18 Henkel Corporation Composition and process for forming a solid adherent protective coating on metal surfaces
ZA962178B (en) * 1995-03-22 1996-07-29 Henkel Corp Compositions and processes for forming a solid adherent protective coating on metal surfaces
FR2752851B1 (en) * 1996-09-02 1998-11-13 Cfpi Ind BATH AND METHOD FOR PHOSPHATION OF METAL SUBSTRATES, CONCENTRATE FOR THE PREPARATION OF THIS BATH AND METAL SUBSTRATES TREATED WITH THE BATH AND METHOD
US5873953A (en) * 1996-12-26 1999-02-23 The Boeing Company Non-chromated oxide coating for aluminum substrates
US6315823B1 (en) 1998-05-15 2001-11-13 Henkel Corporation Lithium and vanadium containing sealing composition and process therewith
US7294211B2 (en) 2002-01-04 2007-11-13 University Of Dayton Non-toxic corrosion-protection conversion coats based on cobalt
US7235142B2 (en) 2002-01-04 2007-06-26 University Of Dayton Non-toxic corrosion-protection rinses and seals based on cobalt
EP1472319A1 (en) 2002-01-04 2004-11-03 University Of Dayton Non-toxic corrosion protection pigments based on cobalt
FR2856079B1 (en) * 2003-06-11 2006-07-14 Pechiney Rhenalu SURFACE TREATMENT METHOD FOR ALUMINUM ALLOY TILES AND BANDS
CN1309864C (en) * 2004-09-29 2007-04-11 广州擎天油漆化工实业有限公司 Environmental protective process for forming transforming film on aluminium and aluminium alloy surface
CN100372972C (en) * 2005-11-03 2008-03-05 复旦大学 Method for growing metal-organic complexes on solid surfaces
CN103184445A (en) * 2011-12-28 2013-07-03 上海航天精密机械研究所 Chemical oxidation solution composition for aluminium-alloy surface and chemical oxidation process
CN103266314B (en) * 2013-05-31 2015-05-13 海安县申菱电器制造有限公司 Method for treating aluminum alloy cobalt salt chemical conversion coating
CN103266315B (en) * 2013-05-31 2015-05-13 海安县申菱电器制造有限公司 Preparation of aluminum alloy cobalt salt chemical conversion coating treating fluid
CN104846309A (en) * 2015-05-09 2015-08-19 安徽鼎恒再制造产业技术研究院有限公司 A kind of high-strength Co3O4-SiC coating material and its preparation method
CN106868495B (en) * 2017-01-23 2019-06-11 江苏理工学院 A kind of recovery and reuse method of cobalt salt chemical oxidation waste liquid
US20210268778A1 (en) * 2018-06-28 2021-09-02 Nelumbo Inc. Coincident Surface Modifications and Methods of Preparation Thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381203A (en) * 1981-11-27 1983-04-26 Amchem Products, Inc. Coating solutions for zinc surfaces
US5298092A (en) * 1990-05-17 1994-03-29 The Boeing Company Non-chromated oxide coating for aluminum substrates
ES2104655T3 (en) * 1990-11-30 1997-10-16 Boeing Co CHROME-FREE COBALT CONVERSION COATING.
DK0523288T3 (en) * 1991-07-19 1999-08-02 Boeing Co Non-chromated oxide coatings for aluminum substrates

Also Published As

Publication number Publication date
CN1090338A (en) 1994-08-03
ZA934544B (en) 1994-03-18
MX9303745A (en) 1994-02-28
BR9306602A (en) 1998-12-08
DE69329853D1 (en) 2001-02-15
NO945026D0 (en) 1994-12-23
CA2138790A1 (en) 1994-01-06
CN1080963A (en) 1994-01-19
RU2135637C1 (en) 1999-08-27
AU4500893A (en) 1994-01-24
JP3345010B2 (en) 2002-11-18
AU687740B2 (en) 1998-03-05
CN1138873C (en) 2004-02-18
NZ253699A (en) 1997-05-26
SG43169A1 (en) 1997-10-17
NO945026L (en) 1995-02-24
DK0646187T3 (en) 2001-04-30
WO1994000619A1 (en) 1994-01-06
CA2138790C (en) 2004-10-19
ES2152950T3 (en) 2001-02-16
ATE198631T1 (en) 2001-01-15
CN1195893C (en) 2005-04-06
NO315522B1 (en) 2003-09-15
DE69329853T2 (en) 2001-04-26
RU94046218A (en) 1996-10-20
JPH07508311A (en) 1995-09-14
EP0646187A1 (en) 1995-04-05
EP0646187B1 (en) 2001-01-10

Similar Documents

Publication Publication Date Title
GR3035554T3 (en) Non-chromated oxide coating for aluminum substrates.
GR3034635T3 (en) Non-chromated oxide coating for aluminum substrates.
HK1006861A1 (en) Non-chromated cobalt conversion coating
CA2019810A1 (en) Surface blackening treatment for zinciferous surfaces
EP0038122A1 (en) Forming corrosion-resistant coatings upon the surfaces of metals, especially zinc
AU3183593A (en) Non-chromated oxide coating for aluminium substrates
CA2087473A1 (en) Non-chromated oxide coating for aluminum substrates
MXPA02003504A (en) Non-chromated oxide coating for aluminum substrates.
CA2018631C (en) Process for a passivating postrinsing of phosphate layers
MY111371A (en) Non-chromated oxide coating for aluminum substrates.
Schriever Non-chromated cobalt conversion coating
MY110203A (en) Non-chromated oxide coating for aluminium substrates
Schriever Non-chromated oxide coating for aluminum substrates
JPS61170593A (en) Surface-treated steel sheet with excellent corrosion resistance after painting
AU773837B2 (en) Process and solution for providing a conversion coating on metallic surface
RU93004412A (en) UNCHROME OXY COATING FOR ALUMINUM SUBSTRATES
KR940018480A (en) Cobalt Transition Coatings for Aluminum Substrates

Legal Events

Date Code Title Description
ML Lapse due to non-payment of fees