BR9105184A - PROCESS FOR FORMING COATING CONVERSION COATING ON A METAL SUBSTRATE AND CHEMICAL CONVERSION COATING SOLUTION FOR THE PRODUCTION OF SUCH COATING - Google Patents
PROCESS FOR FORMING COATING CONVERSION COATING ON A METAL SUBSTRATE AND CHEMICAL CONVERSION COATING SOLUTION FOR THE PRODUCTION OF SUCH COATINGInfo
- Publication number
- BR9105184A BR9105184A BR919105184A BR9105184A BR9105184A BR 9105184 A BR9105184 A BR 9105184A BR 919105184 A BR919105184 A BR 919105184A BR 9105184 A BR9105184 A BR 9105184A BR 9105184 A BR9105184 A BR 9105184A
- Authority
- BR
- Brazil
- Prior art keywords
- cobalt
- solution
- conversion coating
- coating
- hexacoordinated complex
- Prior art date
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>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US62113290A | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9105184A true BR9105184A (en) | 1992-07-21 |
Family
ID=24488866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR919105184A BR9105184A (en) | 1990-11-30 | 1991-11-28 | PROCESS FOR FORMING COATING CONVERSION COATING ON A METAL SUBSTRATE AND CHEMICAL CONVERSION COATING SOLUTION FOR THE PRODUCTION OF SUCH COATING |
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5298092A (en) * | 1990-05-17 | 1994-03-29 | 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 |
| 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 |
| US5411606A (en) * | 1990-05-17 | 1995-05-02 | The Boeing Company | 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 |
| ES2125231T3 (en) * | 1991-07-19 | 1999-03-01 | Boeing Co | NON-CHROME OXIDE COATINGS FOR ALUMINUM SUBSTRATES. |
| CN1138873C (en) * | 1992-06-25 | 2004-02-18 | 波音公司 | Non-chromated oxide coating for aluminum substrates |
| WO1995008008A1 (en) | 1993-09-13 | 1995-03-23 | Commonwealth Scientific And Industrial Research Organisation | Metal treatment with acidic, rare earth ion containing cleaning solution |
| 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 |
| EP1472319A1 (en) | 2002-01-04 | 2004-11-03 | University Of Dayton | Non-toxic corrosion protection pigments based on cobalt |
| 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 |
| 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)
| 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 method for zinc or zinc-based plating materials |
| JPH03226584A (en) * | 1990-01-30 | 1991-10-07 | Nippon Parkerizing Co Ltd | Surface treatment liquid and surface treatment method for galvanized steel sheets |
| US5298092A (en) * | 1990-05-17 | 1994-03-29 | The Boeing Company | Non-chromated oxide coating for aluminum substrates |
-
1991
- 1991-08-27 EP EP91202181A patent/EP0488430B1/en not_active Expired - Lifetime
- 1991-08-27 ES ES91202181T patent/ES2104655T3/en not_active Expired - Lifetime
- 1991-08-27 DK DK91202181.3T patent/DK0488430T3/en active
- 1991-08-27 AT AT91202181T patent/ATE154401T1/en not_active IP Right Cessation
- 1991-08-27 DE DE69126507T patent/DE69126507T2/en not_active Expired - Lifetime
- 1991-11-25 CA CA002056159A patent/CA2056159C/en not_active Expired - Lifetime
- 1991-11-27 AU AU88225/91A patent/AU650494B2/en not_active Ceased
- 1991-11-28 MX MX9102254A patent/MX9102254A/en not_active IP Right Cessation
- 1991-11-28 NZ NZ240779A patent/NZ240779A/en not_active IP Right Cessation
- 1991-11-28 BR BR919105184A patent/BR9105184A/en not_active IP Right Cessation
- 1991-11-29 JP JP31608191A patent/JP3194607B2/en not_active Expired - Lifetime
-
1997
- 1997-07-09 GR GR970401701T patent/GR3024046T3/en unknown
-
1998
- 1998-06-22 HK HK98105956A patent/HK1006861A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JP3194607B2 (en) | 2001-07-30 |
| EP0488430A2 (en) | 1992-06-03 |
| ES2104655T3 (en) | 1997-10-16 |
| HK1006861A1 (en) | 1999-03-19 |
| CA2056159C (en) | 2001-07-03 |
| AU650494B2 (en) | 1994-06-23 |
| AU8822591A (en) | 1992-06-04 |
| DE69126507T2 (en) | 1997-09-25 |
| DE69126507D1 (en) | 1997-07-17 |
| DK0488430T3 (en) | 1998-01-05 |
| NZ240779A (en) | 1994-11-25 |
| ATE154401T1 (en) | 1997-06-15 |
| EP0488430B1 (en) | 1997-06-11 |
| JPH059745A (en) | 1993-01-19 |
| CA2056159A1 (en) | 1992-05-31 |
| MX9102254A (en) | 1992-06-01 |
| GR3024046T3 (en) | 1997-10-31 |
| EP0488430A3 (en) | 1992-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
| FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
| FF | Decision: intention to grant | ||
| FG9A | Patent or certificate of addition granted | ||
| B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 28/11/2011 |