GB426115A - Improvements in or relating to production of an adherent patina upon copper or its alloys - Google Patents
Improvements in or relating to production of an adherent patina upon copper or its alloysInfo
- Publication number
- GB426115A GB426115A GB2374934A GB2374934A GB426115A GB 426115 A GB426115 A GB 426115A GB 2374934 A GB2374934 A GB 2374934A GB 2374934 A GB2374934 A GB 2374934A GB 426115 A GB426115 A GB 426115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- copper
- per
- coating
- alloys
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract 6
- 229910045601 alloy Inorganic materials 0.000 title abstract 6
- 239000000956 alloy Substances 0.000 title abstract 6
- 229910052802 copper Inorganic materials 0.000 title abstract 6
- 239000010949 copper Substances 0.000 title abstract 6
- 241001311547 Patina Species 0.000 title abstract 3
- 230000001464 adherent effect Effects 0.000 title abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 6
- 239000011248 coating agent Substances 0.000 abstract 5
- 238000000576 coating method Methods 0.000 abstract 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 4
- 229910052759 nickel Inorganic materials 0.000 abstract 3
- 229910000906 Bronze Inorganic materials 0.000 abstract 2
- 239000010974 bronze Substances 0.000 abstract 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 2
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 239000003637 basic solution Substances 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229940116318 copper carbonate Drugs 0.000 abstract 1
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 238000004381 surface treatment Methods 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 239000011135 tin Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/34—Anodisation of metals or alloys not provided for in groups C25D11/04 - C25D11/32
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
426,115. Electrolytic surface treatment of metals. WITHERS, J. S., 51, Chancery Lane, London.-(Battelle Memorial Institute; 505, King Avenue, Columbus, Ohio, U.S.A.) Aug. 17, 1934, No. 23749. [Class 41] An artificial patina is produced on copper or its alloys by anodic treatment in a strongly basic solution of readily soluble carbonates. Carbonates or bicarbonates of alkali metals or ammonium are preferably employed. Sodium bicarbonate solution of strength 2-10 per cent, preferably 5-8 per cent, having a pH value above 8, are suitable. The initial current density may be 1-20 amps. per sq. dcm, preferably 1¢-4 amps. per sq. dem. With an 8 per cent sodium bicarbonate. solution and current density 18 amps. per sq. dcm., a sufficient coating is formed in 1 minute. The coating consists of a bluishgreen basic copper carbonate. On exposure to the atmosphere this becomes a true green by conversion to basic sulphate. Alloys which may be treated include brass containing up to 40 per cent zinc, aluminium, bronze, tin bronze, the alloy known by the Registered Trade Mark " Everdur," and an alloy containing 2-3 per cent nickel, ¢-1 per cent silicon and the balance copper. An alloy containing 20 per cent of nickel and 80 per cent copper does not produce a good coating but one containing 10 per cent of nickel may be treated. A roof may be treated by treatment with a wooden roller 1 having a copper cover 2 connected as cathode and an outer covering 3 of cloth impregnated with electrolyte. In the apparatus shown the electrolyte is delivered by a spray 7 from a tank 6. Slightly tarnished surfaces may be prepared by a light application of patina, after which any non-adherent parts of the coating are removed ; the coating produced by further treatment is then adherent. Very dirty copper should be first cleaned and pickled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2374934A GB426115A (en) | 1934-08-17 | 1934-08-17 | Improvements in or relating to production of an adherent patina upon copper or its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2374934A GB426115A (en) | 1934-08-17 | 1934-08-17 | Improvements in or relating to production of an adherent patina upon copper or its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB426115A true GB426115A (en) | 1935-03-27 |
Family
ID=10200679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2374934A Expired GB426115A (en) | 1934-08-17 | 1934-08-17 | Improvements in or relating to production of an adherent patina upon copper or its alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB426115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014815A (en) * | 2012-11-28 | 2013-04-03 | 常州大学 | Copper wire roller type fast anode oxidation treatment method |
| CN107116006A (en) * | 2017-05-17 | 2017-09-01 | 河钢股份有限公司邯郸分公司 | A kind of automatic brush-coating device of heavy rail steel billet anticreep carbon coating |
-
1934
- 1934-08-17 GB GB2374934A patent/GB426115A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014815A (en) * | 2012-11-28 | 2013-04-03 | 常州大学 | Copper wire roller type fast anode oxidation treatment method |
| CN103014815B (en) * | 2012-11-28 | 2016-05-04 | 常州大学 | Copper conductor roll-type fast anode oxidation treatment method |
| CN107116006A (en) * | 2017-05-17 | 2017-09-01 | 河钢股份有限公司邯郸分公司 | A kind of automatic brush-coating device of heavy rail steel billet anticreep carbon coating |
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