GB557045A - Improvements in and relating to the treatment of ferrous metals to improve resistance to rusting - Google Patents
Improvements in and relating to the treatment of ferrous metals to improve resistance to rustingInfo
- Publication number
- GB557045A GB557045A GB5725/42A GB572542A GB557045A GB 557045 A GB557045 A GB 557045A GB 5725/42 A GB5725/42 A GB 5725/42A GB 572542 A GB572542 A GB 572542A GB 557045 A GB557045 A GB 557045A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- articles
- bath
- sodium
- acid
- 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
- C23C22/60—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
- C23C22/62—Treatment of iron 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
- C23C22/86—Regeneration of coating baths
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
557,045. Treating metal surfaces. PROTECTIVE METAL FINISHES, Ltd., and BERGSTEIN, G. K. April 29, 1942, Nos. 5725/42, 14230/42 and 2607/43. [Class 82 (ii)] Iron articles are provided with a rust-resisting surface by treatment at 100-200‹C. with an alkaline bath containing an oxidizing agent and an alkali metal silicate. The oxidizing agent may be an alkali metal nitrate, chlorate, permanganate, or peroxide, or a biochromate or nitrophenol, with or without the addition of a nitrite, and the alkali may be caustic soda. The bath may be regenerated by the addition of a mixture of caustic soda, sodium silicate, sodium nitrate, lime, and manganese dioxide. After treatment in the bath, the articles may be dipped in an acid solution of sodium bichromate, or in dilute acetic or other acid. The articles may be preheated before treatment, such as by immersion in boiling water or weak acid. In some cases an iron salt, a heavy metal oxide or cyanide, or urea may be added to the solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5725/42A GB557045A (en) | 1942-04-29 | 1942-04-29 | Improvements in and relating to the treatment of ferrous metals to improve resistance to rusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5725/42A GB557045A (en) | 1942-04-29 | 1942-04-29 | Improvements in and relating to the treatment of ferrous metals to improve resistance to rusting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB557045A true GB557045A (en) | 1943-11-02 |
Family
ID=9801449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5725/42A Expired GB557045A (en) | 1942-04-29 | 1942-04-29 | Improvements in and relating to the treatment of ferrous metals to improve resistance to rusting |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB557045A (en) |
-
1942
- 1942-04-29 GB GB5725/42A patent/GB557045A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1522248A (en) | Method of inhibiting rusting of sponge iron | |
| GB655079A (en) | Improvements in or relating to the production of phosphate coatings | |
| GB983451A (en) | Improvements in chemical cleaning method and material | |
| GB557045A (en) | Improvements in and relating to the treatment of ferrous metals to improve resistance to rusting | |
| GB381402A (en) | Improvements in or relating to the surface treatment of aluminium or aluminium alloys | |
| US2557509A (en) | Composition and process for protecting ferrous metals from rusting in moist air | |
| GB943169A (en) | Improvements relating to the phosphate-coating of metals | |
| GB949734A (en) | Improvements relating to treatment of surfaces of zinc or alloys thereof | |
| GB1093119A (en) | Improvements relating to the treatment of metal surfaces | |
| GB932987A (en) | Improvements relating to the phosphate-coating of metals | |
| GB634262A (en) | Improvement in coating of metal surfaces | |
| GB913343A (en) | Solutions for the treatment of aluminium and alloys thereof | |
| GB614671A (en) | Improvements in or relating to the formation of oxide coatings on aluminium surfaces | |
| GB604379A (en) | Process for the treatment of sheet iron | |
| GB780230A (en) | Improvements relating to the formation of chemical coatings on metal surfaces | |
| GB594762A (en) | Improvements in or relating to the coating of the surfaces of ferrous metals | |
| GB878307A (en) | Improvements relating to the cleaning and phosphate coating of metallic surfaces | |
| GB812095A (en) | Improvements relating to the formation of phosphate coatings | |
| GB675024A (en) | The production of oxalate coatings on metals | |
| GB663100A (en) | Improvements in or relating to the drawing of aluminium or aluminium alloys | |
| GB741080A (en) | Improvements relating to the formation of oxalate coatings on metallic surfaces | |
| GB781521A (en) | Improvements in or relating to surface de-oxidising of copper-base alloys | |
| GB680435A (en) | Improvements in or relating to the treatment of zinc surfaces | |
| GB471070A (en) | Improvements in and relating to coating iron or steel articles | |
| GB985369A (en) | Chlorate accelerated zinc phosphate baths with added arsenate |