GB718041A - Improvements relating to the formation of oxalate coatings on copper and copper alloys - Google Patents
Improvements relating to the formation of oxalate coatings on copper and copper alloysInfo
- Publication number
- GB718041A GB718041A GB1896/52A GB189652A GB718041A GB 718041 A GB718041 A GB 718041A GB 1896/52 A GB1896/52 A GB 1896/52A GB 189652 A GB189652 A GB 189652A GB 718041 A GB718041 A GB 718041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- oxalate
- copper
- ferric
- iron
- 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
- C23C22/46—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 oxalates
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 coating consisting mainly of ferrous oxalate is formed on a surface of copper or a copper alloy by treatment with an aqueous solution of iron oxalate in which all or a predominating part of the iron is ferric, the total iron being at least 0.5 per cent. of the solution and the solution being at least as acid as an aqueous solution of ferric oxalate alone. The oxalate ions may be derived from oxalic acid, ferrous oxalate or ferric oxalate; free oxalic acid may be present. If ferrous oxalate is used, oxidizing agents such as potassium dichromate, or potassium permanganate or, preferably, sodium chlorate or hydrogen peroxide are added. Chloride ions are preferably present. The coating appears also to contain some copper oxalate. Alloys which may be so treated include (1) Cu 95 per cent., Al 5 per cent., (2) Cu 96 per cent., Si 3 per cent. Mn 1 per cent., (3) Fe .5 per cent., Ni 29 per cent., Mn 0.75 per cent., Cu balance, (4) Sn 5 per cent. P .03-.35 per cent., Cu balance. The treatment is said to facilitate plastic deformation. Specification 455,077 is referred to
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US718041XA | 1951-01-23 | 1951-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB718041A true GB718041A (en) | 1954-11-10 |
Family
ID=22103697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1896/52A Expired GB718041A (en) | 1951-01-23 | 1952-01-23 | Improvements relating to the formation of oxalate coatings on copper and copper alloys |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE507618A (en) |
| DE (1) | DE904129C (en) |
| FR (1) | FR1059790A (en) |
| GB (1) | GB718041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970204A (en) * | 2016-06-06 | 2016-09-28 | 无锡伊佩克科技有限公司 | Salt mist-resistant metal passivating agent and preparation method thereof |
-
0
- BE BE507618D patent/BE507618A/xx unknown
-
1951
- 1951-09-04 DE DEP6150A patent/DE904129C/en not_active Expired
- 1951-11-21 FR FR1059790D patent/FR1059790A/en not_active Expired
-
1952
- 1952-01-23 GB GB1896/52A patent/GB718041A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970204A (en) * | 2016-06-06 | 2016-09-28 | 无锡伊佩克科技有限公司 | Salt mist-resistant metal passivating agent and preparation method thereof |
| CN105970204B (en) * | 2016-06-06 | 2018-11-09 | 温州奥洋新材料有限公司 | Salt spray resistance matal deactivator and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| BE507618A (en) | |
| DE904129C (en) | 1954-02-15 |
| FR1059790A (en) | 1954-03-29 |
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