GB783317A - Treatment for improving the corrosion-resistance of electro-plated iron and steel articles - Google Patents
Treatment for improving the corrosion-resistance of electro-plated iron and steel articlesInfo
- Publication number
- GB783317A GB783317A GB1579055A GB1579055A GB783317A GB 783317 A GB783317 A GB 783317A GB 1579055 A GB1579055 A GB 1579055A GB 1579055 A GB1579055 A GB 1579055A GB 783317 A GB783317 A GB 783317A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- corrosion
- resistance
- treatment
- ethylene oxide
- 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
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
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)
Abstract
An electroplated iron or steel article is treated, to improve the corrosion-resistance thereof, with a solution containing 0.5-5 per cent of an organic phosphate produced by the reaction of an alkyl or aryl amine or a substituted derivative thereof with phosphoric acid, and the minimum amount of free phosphoric acid to prevent precipitation of basic compounds during its use. Suitable phosphates are aniline-, ethylaniline-, diethylaniline-, dimethylaniline-, and p - nitrodimethylaniline-phosphates. The solution may also contain an accelerator such as sodium nitrate or nitroguanidine, and a surface-active agent such as sodium hexametaphosphate, alkylated phenol-ethylene oxide condensates, long chain fatty alcohol-ethylene oxide condensates, and disodium salts of aliphatic acids such as succinic, glutaric, adipic and sebacic acids, or of cinnanic or m- and p - nitrocinnanic acids. The articles (plated, for example, with copper, nickel or chromium) may be subjected to an after-treatment with an oxidizing inhibitor such as an aqueous solution of a chromate, chromic acid, a persulphate, or a peroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1579055A GB783317A (en) | 1955-06-02 | 1955-06-02 | Treatment for improving the corrosion-resistance of electro-plated iron and steel articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1579055A GB783317A (en) | 1955-06-02 | 1955-06-02 | Treatment for improving the corrosion-resistance of electro-plated iron and steel articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB783317A true GB783317A (en) | 1957-09-18 |
Family
ID=10065504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1579055A Expired GB783317A (en) | 1955-06-02 | 1955-06-02 | Treatment for improving the corrosion-resistance of electro-plated iron and steel articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB783317A (en) |
-
1955
- 1955-06-02 GB GB1579055A patent/GB783317A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2067007A (en) | Method of coating metal | |
| ES358443A1 (en) | Metal treating process | |
| GB1084017A (en) | Pretreating process for phosphate-treating steel sheets or plated steel sheets | |
| GB783317A (en) | Treatment for improving the corrosion-resistance of electro-plated iron and steel articles | |
| GB915963A (en) | Electrolytic treatment of ferrous metal surfaces | |
| GB655079A (en) | Improvements in or relating to the production of phosphate coatings | |
| GB1003705A (en) | Process for the after-treatment of phosphate coatings | |
| SE7602838L (en) | SALT BATH FOR BIG COOLING OF BATH-NITRATED CONSTRUCTION ELEMENTS | |
| GB597754A (en) | Process for treating ferrous sheets and other ferrous articles | |
| GB931003A (en) | Process for treating metal articles | |
| GB932987A (en) | Improvements relating to the phosphate-coating of metals | |
| GB599784A (en) | Improvements in or relating to processes for the production of protective coatings on metal surfaces | |
| GB970366A (en) | Improvements relating to the coating of metals | |
| GB599778A (en) | Improvements relating to the production of phosphate coatings on metal | |
| US1260740A (en) | Treatment of iron and steel to prevent corrosion. | |
| ES391678A1 (en) | Processes and compositions for metal treatment | |
| GB604325A (en) | Improvements relating to the production of phosphate coatings ferrous surfaces | |
| GB738004A (en) | Improvements relating to the production of phosphate coatings on metals | |
| AT166610B (en) | Process for decarburizing the superficial layers of workpieces made of iron and steel | |
| GB599728A (en) | Improvements in or relating to processes for increasing the resistance of metals to corrosion | |
| GB914797A (en) | Rust inhibitive and paint holding treatment for alloyed zinc iron surfaces | |
| GB648888A (en) | Improvements in the production of phosphate coatings on metal surfaces | |
| GB559260A (en) | New pesticidal compositions | |
| GB1207041A (en) | Process for the improvement of the anti-friction properties of machine parts | |
| GB852226A (en) | Process for phosphating metals |