MX9102254A - AQUEOUS SOLUTION AND PROCEDURE FOR FORMING A COBALT CONVERSION COATING ON A METAL SUBSTRATE. - Google Patents

AQUEOUS SOLUTION AND PROCEDURE FOR FORMING A COBALT CONVERSION COATING ON A METAL SUBSTRATE.

Info

Publication number
MX9102254A
MX9102254A MX9102254A MX9102254A MX9102254A MX 9102254 A MX9102254 A MX 9102254A MX 9102254 A MX9102254 A MX 9102254A MX 9102254 A MX9102254 A MX 9102254A MX 9102254 A MX9102254 A MX 9102254A
Authority
MX
Mexico
Prior art keywords
cobalt
solution
conversion coating
hexacoordinated complex
substrate
Prior art date
Application number
MX9102254A
Other languages
Spanish (es)
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
Application filed by Boeing Co filed Critical Boeing Co
Publication of MX9102254A publication Critical patent/MX9102254A/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
    • C23C22/68—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
    • 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
    • C23C22/82—After-treatment
    • C23C22/83—Chemical after-treatment

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)
  • Chemically Coating (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 having a pH of about 7.0 to 7.2 and containing a soluble cobalt-III hexacoordinated complex, the concentration of the cobalt-III hexacoordinated complex being from about 0.1 mole per gallon of solution to the saturation limit of the cobalt-III hexacoordinated 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 magnesium and its alloys, Cd plated substrates, and Zn plated substrates. The cobalt-III hexacoordinated complex may be present in the form of Me3[Co(NO2)6] wherein Me is one or more of Na, K, and Li. (B.) A chemical conversion coating solution for producing the cobalt conversion coating on a metal substrate, the solution being an aqueous solution having a pH of about 7.0 to 7.2 and containing a soluble cobalt-III hexacoordinated complex, the concentration of the cobalt-III hexacoordinated complex being from about 0.1 mole per gallon of solution to the saturation limit of the cobalt-III hexacoordinated complex. The cobalt conversion solution may be prepared by a bath makeup sequence including the steps of: (a) dissolving a metal nitrite salt; (b) dissolving an accelerator such as NaI; (c) dissolving a cobalt-II salt; and (d) then adding an oxidizer such as H2O2. (C.) A coated article exhibiting 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, Co3O4, and Co2O3. <IMAGE>
MX9102254A 1990-11-30 1991-11-28 AQUEOUS SOLUTION AND PROCEDURE FOR FORMING A COBALT CONVERSION COATING ON A METAL SUBSTRATE. MX9102254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62113290A 1990-11-30 1990-11-30

Publications (1)

Publication Number Publication Date
MX9102254A true MX9102254A (en) 1992-06-01

Family

ID=24488866

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9102254A MX9102254A (en) 1990-11-30 1991-11-28 AQUEOUS SOLUTION AND PROCEDURE FOR FORMING A COBALT CONVERSION COATING ON A METAL SUBSTRATE.

Country Status (13)

Country Link
EP (1) EP0488430B1 (en)
JP (1) JP3194607B2 (en)
AT (1) ATE154401T1 (en)
AU (1) AU650494B2 (en)
BR (1) BR9105184A (en)
CA (1) CA2056159C (en)
DE (1) DE69126507T2 (en)
DK (1) DK0488430T3 (en)
ES (1) ES2104655T3 (en)
GR (1) GR3024046T3 (en)
HK (1) HK1006861A1 (en)
MX (1) MX9102254A (en)
NZ (1) NZ240779A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411606A (en) * 1990-05-17 1995-05-02 The Boeing Company Non-chromated oxide coating for aluminum substrates
US5472524A (en) * 1990-05-17 1995-12-05 The Boeing Company Non-chromated cobalt conversion coating method and coated articles
US5551994A (en) * 1990-05-17 1996-09-03 The Boeing Company Non-chromated oxide coating for aluminum substrates
US5468307A (en) * 1990-05-17 1995-11-21 Schriever; Matthias P. Non-chromated oxide coating for aluminum substrates
CA2087473C (en) * 1990-05-17 2001-10-16 Matthias P. Schriever Non-chromated oxide coating for aluminum substrates
US5298092A (en) * 1990-05-17 1994-03-29 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
CN1138873C (en) * 1992-06-25 2004-02-18 波音公司 Non-chromated oxide coating for aluminum substrates
ATE211780T1 (en) 1993-09-13 2002-01-15 Commw Scient Ind Res Org METAL TREATMENT WITH ACIDIC CLEANING SOLUTIONS CONTAINING RARE EARTH IONS
AUPM621194A0 (en) * 1994-06-10 1994-07-07 Commonwealth Scientific And Industrial Research Organisation Conversion coating and process for its formation
DE69525475T2 (en) 1994-11-11 2002-10-02 Commonwealth Scientific And Industrial Research Organisation, Campbell METHOD AND SOLUTION TO GUARANTEE A CONVERSION COATING ON A METAL SURFACE
GB9617416D0 (en) * 1996-08-20 1996-10-02 Minnesota Mining & Mfg Thermal bleaching of infrared dyes
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
ZA983867B (en) * 1997-05-16 1998-11-13 Henkel Corp Lithium and vanadium containing sealing composition and process therewith
US6315823B1 (en) 1998-05-15 2001-11-13 Henkel Corporation Lithium and vanadium containing sealing composition and process therewith
US6432225B1 (en) * 1999-11-02 2002-08-13 The Boeing Company Non-chromated oxide coating for aluminum substrates
AUPQ633200A0 (en) 2000-03-20 2000-04-15 Commonwealth Scientific And Industrial Research Organisation Process and solution for providing a conversion coating on a metallic surface I
AUPQ633300A0 (en) 2000-03-20 2000-04-15 Commonwealth Scientific And Industrial Research Organisation Process and solution for providing a conversion coating on a metallic surface ii
US7235142B2 (en) 2002-01-04 2007-06-26 University Of Dayton Non-toxic corrosion-protection rinses and seals based on cobalt
US7294211B2 (en) * 2002-01-04 2007-11-13 University Of Dayton Non-toxic corrosion-protection conversion coats based on cobalt
WO2003060019A1 (en) 2002-01-04 2003-07-24 University Of Dayton Non-toxic corrosion protection pigments based on cobalt
US6818313B2 (en) 2002-07-24 2004-11-16 University Of Dayton Corrosion-inhibiting coating
US20040011252A1 (en) 2003-01-13 2004-01-22 Sturgill Jeffrey A. Non-toxic corrosion-protection pigments based on manganese
JP4934984B2 (en) * 2005-03-31 2012-05-23 大日本印刷株式会社 Method for producing metal oxide film

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905838A (en) * 1974-04-10 1975-09-16 Hikaru Ito Bath for treating aluminum and aluminum alloys to form oxide film nonelectrolytically thereon and method for the treatment
US4381203A (en) * 1981-11-27 1983-04-26 Amchem Products, Inc. Coating solutions for zinc surfaces
JPH0331484A (en) * 1989-06-27 1991-02-12 Nippon Parkerizing Co Ltd Blackening treatment of zinc or zinc-based plating material
JPH03226584A (en) * 1990-01-30 1991-10-07 Nippon Parkerizing Co Ltd Solution for surface-treating galvanized steel sheet and method therefor
US5298092A (en) * 1990-05-17 1994-03-29 The Boeing Company Non-chromated oxide coating for aluminum substrates

Also Published As

Publication number Publication date
CA2056159C (en) 2001-07-03
EP0488430A3 (en) 1992-12-16
HK1006861A1 (en) 1999-03-19
JP3194607B2 (en) 2001-07-30
JPH059745A (en) 1993-01-19
DK0488430T3 (en) 1998-01-05
ATE154401T1 (en) 1997-06-15
AU650494B2 (en) 1994-06-23
BR9105184A (en) 1992-07-21
AU8822591A (en) 1992-06-04
ES2104655T3 (en) 1997-10-16
DE69126507T2 (en) 1997-09-25
DE69126507D1 (en) 1997-07-17
EP0488430B1 (en) 1997-06-11
NZ240779A (en) 1994-11-25
EP0488430A2 (en) 1992-06-03
GR3024046T3 (en) 1997-10-31
CA2056159A1 (en) 1992-05-31

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees