GB988985A - Improvements relating to the treatment of conversion coatings on metal surfaces - Google Patents
Improvements relating to the treatment of conversion coatings on metal surfacesInfo
- Publication number
- GB988985A GB988985A GB40452/63A GB4045263A GB988985A GB 988985 A GB988985 A GB 988985A GB 40452/63 A GB40452/63 A GB 40452/63A GB 4045263 A GB4045263 A GB 4045263A GB 988985 A GB988985 A GB 988985A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chromate
- coating
- phosphate
- rinsing
- nitrate
- 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
Links
- 238000007739 conversion coating Methods 0.000 title abstract 3
- 229910052751 metal Inorganic materials 0.000 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 abstract 5
- 238000000576 coating method Methods 0.000 abstract 5
- 229910019142 PO4 Inorganic materials 0.000 abstract 4
- 150000001450 anions Chemical class 0.000 abstract 4
- 239000011248 coating agent Substances 0.000 abstract 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 4
- 239000010452 phosphate Substances 0.000 abstract 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 3
- 229910002651 NO3 Inorganic materials 0.000 abstract 3
- 239000012487 rinsing solution Substances 0.000 abstract 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 abstract 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 229940000489 arsenate Drugs 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- -1 phosphate-oxide Chemical compound 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- 230000001680 brushing effect Effects 0.000 abstract 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- OMLKPIIYNUNCMY-UHFFFAOYSA-N formic acid;sulfuric acid Chemical compound OC=O.OS(O)(=O)=O OMLKPIIYNUNCMY-UHFFFAOYSA-N 0.000 abstract 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 abstract 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
Abstract
A chemical conversion coating on a metal surface (e.g. a phosphate, phosphate-oxide, chromate, oxalate or an arsenate on Fe, steel, Zn, Al, Cu, brass, bronze, Mg or Ti) is rinsed with a dilute acidic aqueous solution which has a pH of at least 3.8 (e.g. 3.8-6) and contains at least 0.001% w/v (e.g. 0.01-0.25% w/v) of trivalent chromium and an anion capable of being displaced by an anion portion of the chemical conversion coating, and the coating is subsequently further rinsed with water. The treated surface may then be painted. Specified anions for the Cr3+ rinsing solutions for treating phosphate coatings are nitrate, chloride and chromate or mixtures of two or more of these, sulphate formate and acetate. For treating a coating other than a phosphate, e.g. an oxalate coating, the anions nitrate, chloride, sulphate, phosphate, formate, acetate and sulphite are specified. Preferred anions for a chromate or arsenate coating are the chromate, nitrate or chloride or mixtures thereof. Rinsing solutions containing both Cr3+ and Cr6+ in the form of chromate may be prepared from aqueous chromic acid solution by partial reduction with a reducing agent such as an organic compound which contains an active hydroxyl, aldehyde or carboxyl group (specific examples are given). The rinse solutions may be applied by spraying, immersion or brushing. during the treatment, the pH of the rinsing solution may be continuously or intermittently adjusted by adding alkaline material. The examples relate to rinsing phosphated steel (Examples 1-5), phosphated Zn (Example 6) and chromated Al (Example 7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US230729A US3279958A (en) | 1962-10-15 | 1962-10-15 | Method of rinsing conversion coatings with chromium complex solutions from chromic acid |
| US230744A US3222226A (en) | 1962-10-15 | 1962-10-15 | Method of and solution for improving conversion coated metallic surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB988985A true GB988985A (en) | 1965-04-14 |
Family
ID=26924492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40452/63A Expired GB988985A (en) | 1962-10-15 | 1963-10-14 | Improvements relating to the treatment of conversion coatings on metal surfaces |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US3222226A (en) |
| BE (1) | BE634984A (en) |
| DE (1) | DE1295961B (en) |
| ES (1) | ES290121A1 (en) |
| GB (1) | GB988985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1297952B (en) * | 1964-09-25 | 1969-06-19 | Metallgesellschaft Ag | Process for chromating zinc or aluminum surfaces |
| EP0244022A2 (en) * | 1986-04-26 | 1987-11-04 | Nihon Parkerizing Co., Ltd. | After-treatment process for phosphated metal surfaces |
| CN100393910C (en) * | 2006-05-23 | 2008-06-11 | 河海大学常州校区 | Magnesium alloy surface citrate chemical conversion film treatment solution |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3501352A (en) * | 1965-08-02 | 1970-03-17 | Hooker Chemical Corp | Composition and method for treating zinc surfaces |
| US3932198A (en) * | 1974-05-24 | 1976-01-13 | Amchem Products, Inc. | Coating solution having trivalent chromium and manganese for coating metal surfaces |
| CA1062560A (en) * | 1974-09-25 | 1979-09-18 | Hidejiro Asano | Method for the manufacture of a steel sheet adapted for use in ironing processing having good lubrication property |
| US4161409A (en) * | 1978-03-06 | 1979-07-17 | Louis Schiffman | Corrosion inhibitive pigment |
| US4230770A (en) * | 1978-10-06 | 1980-10-28 | The Goodyear Tire & Rubber Company | Metal photopolymer substrates |
| AU2448684A (en) * | 1983-03-02 | 1984-09-06 | Parker Chemical Company | Metal treatment before phosphate coating |
| US5368655A (en) * | 1992-10-23 | 1994-11-29 | Alchem Corp. | Process for chromating surfaces of zinc, cadmium and alloys thereof |
| US5433773A (en) * | 1994-06-02 | 1995-07-18 | Fremont Industries, Inc. | Method and composition for treatment of phosphate coated metal surfaces |
| TW538138B (en) * | 2000-04-27 | 2003-06-21 | Otsuka Kagaku Kk | Process for treating and producing the parts made of magnesium and/or magnesium alloy |
| US6537678B1 (en) | 2000-09-20 | 2003-03-25 | United Technologies Corporation | Non-carcinogenic corrosion inhibiting additive |
| US7341677B2 (en) | 2003-06-30 | 2008-03-11 | United Technologies Corporation | Non-carcinogenic corrosion inhibiting additive |
| US7972533B2 (en) * | 2006-04-04 | 2011-07-05 | United Technologies Corporation | Chromate free waterborne corrosion resistant primer with non-carcinogenic corrosion inhibiting additive |
| US20090004486A1 (en) * | 2007-06-27 | 2009-01-01 | Sarah Arsenault | Corrosion inhibiting additive |
| ES2526658T3 (en) * | 2010-05-26 | 2015-01-14 | Atotech Deutschland Gmbh | Process for the formation of layers of protection against corrosion on metal surfaces |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US900597A (en) * | 1908-01-16 | 1908-10-06 | Franz Salzer | Process for producing an electrolytic deposit of metallic chromium. |
| US1922853A (en) * | 1927-12-01 | 1933-08-15 | United Chromium Inc | Process for the electrolytic deposition of chromium |
| US2313925A (en) * | 1937-04-16 | 1943-03-16 | Parker Rust Proof Co | Coating metals by the aid of acid sulphites |
| US2377229A (en) * | 1937-07-03 | 1945-05-29 | Little Inc A | Electrolytic deposition of chromium |
| DE825041C (en) * | 1948-10-01 | 1952-01-31 | Metallgesellschaft Ag | Passivating agent |
| US2768104A (en) * | 1952-03-25 | 1956-10-23 | Heintz Mfg Co | Method for coating iron |
| BE542208A (en) * | 1954-10-20 | |||
| US2846342A (en) * | 1955-09-30 | 1958-08-05 | Leo P Curtin | Bonding coats for metal |
| US2911332A (en) * | 1956-05-25 | 1959-11-03 | Kelsey Hayes Co | Process of coating metal and resulting articles |
| DE1093167B (en) * | 1957-01-19 | 1960-11-17 | Metallgesellschaft Ag | Process for the formation of thin phosphate coatings on iron and steel |
| US3094441A (en) * | 1958-09-03 | 1963-06-18 | Curtin Leo Vincent | Chromic phosphate bonding coats for metal |
| US3063877A (en) * | 1960-10-10 | 1962-11-13 | Amchem Prod | Method and solutions for treating metal surfaces |
-
0
- BE BE634984D patent/BE634984A/xx unknown
-
1962
- 1962-10-15 US US230744A patent/US3222226A/en not_active Expired - Lifetime
- 1962-10-15 US US230729A patent/US3279958A/en not_active Expired - Lifetime
-
1963
- 1963-07-19 ES ES290121A patent/ES290121A1/en not_active Expired
- 1963-10-12 DE DEM58505A patent/DE1295961B/en not_active Withdrawn
- 1963-10-14 GB GB40452/63A patent/GB988985A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1297952B (en) * | 1964-09-25 | 1969-06-19 | Metallgesellschaft Ag | Process for chromating zinc or aluminum surfaces |
| DE1297952C2 (en) * | 1964-09-25 | 1973-05-24 | Metallgesellschaft Ag | Process for chromating zinc or aluminum surfaces |
| EP0244022A2 (en) * | 1986-04-26 | 1987-11-04 | Nihon Parkerizing Co., Ltd. | After-treatment process for phosphated metal surfaces |
| EP0244022A3 (en) * | 1986-04-26 | 1989-03-15 | Nihon Parkerizing Co., Ltd. | After-treatment process for phosphated metal surfaces |
| CN100393910C (en) * | 2006-05-23 | 2008-06-11 | 河海大学常州校区 | Magnesium alloy surface citrate chemical conversion film treatment solution |
Also Published As
| Publication number | Publication date |
|---|---|
| BE634984A (en) | |
| US3222226A (en) | 1965-12-07 |
| US3279958A (en) | 1966-10-18 |
| DE1295961B (en) | 1969-05-22 |
| ES290121A1 (en) | 1963-08-16 |
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