GB899052A - Improvements in or relating to electropolishing of zinc and zinc alloys - Google Patents
Improvements in or relating to electropolishing of zinc and zinc alloysInfo
- Publication number
- GB899052A GB899052A GB4226/60D GB422660D GB899052A GB 899052 A GB899052 A GB 899052A GB 4226/60 D GB4226/60 D GB 4226/60D GB 422660 D GB422660 D GB 422660D GB 899052 A GB899052 A GB 899052A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- zinc
- electrolyte
- anode
- alkali
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052725 zinc Inorganic materials 0.000 title abstract 3
- 239000011701 zinc Substances 0.000 title abstract 3
- 229910001297 Zn alloy Inorganic materials 0.000 title abstract 2
- 239000003792 electrolyte Substances 0.000 abstract 4
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- -1 alkali-metal cyanide Chemical class 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 238000005498 polishing Methods 0.000 abstract 2
- 229910001018 Cast iron Inorganic materials 0.000 abstract 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 abstract 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- SXDBWCPKPHAZSM-UHFFFAOYSA-M bromate Chemical class [O-]Br(=O)=O SXDBWCPKPHAZSM-UHFFFAOYSA-M 0.000 abstract 1
- 239000010406 cathode material Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 229910003460 diamond Inorganic materials 0.000 abstract 1
- 239000010432 diamond Substances 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 abstract 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-N iodic acid Chemical class OI(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/22—Polishing of heavy metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
899,052. Electro-polishing. DIAMOND ALKALI CO. Feb. 5, 1960 [Feb. 9, 1959], No. 4226/60. Class 41. A method of electro-polishing an article having a metal surface consisting of zinc or a zinc alloy comprises making the article the anode in an electrolytic cell, the electrolyte comprising an alkali-metal hydroxide in an amount between 450 and 900 gm./litre maintained between 60‹ and 200‹ F. and passing an electric current through the electrolyte at an anode C.D. of between 50 and 800 amps./sq. ft. between the anode and a cathode for a period of time sufficient to electropolish the anode, and preventing the plating of zinc on to the cathode whilst effecting the attendant release of hydrogen at the cathode, by using a cathode which contains Fe3O4 or by including an oxidizing agent in the electrolyte, the electrolyte also containing an alkali-metal cyanide in an amount between 1 and 100 gm./litre and an alkali-metal thiocyanate in an amount between 1 and 200 gm./litre. Suitable cathode materials include heat-treated steel, black-oxide-coated steel, hotrolled steel, magnetite and cast iron. Suitable oxidizing agents include perborates, peroxydisulphates, oxychlorides, permanganates, bichromates, chlorates, bromates, iodates, nitrates, peroxides and chlorine. A small amount of a de-foaming agent may be added (many examples are given). Specification 869,481 is referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US771507A US3088886A (en) | 1958-11-03 | 1958-11-03 | Process of electropolishing zinc |
| US791840A US3088887A (en) | 1958-11-03 | 1959-02-09 | Electropolishing of zinc-copper alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB899052A true GB899052A (en) | 1962-06-20 |
Family
ID=27118473
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16091/59A Expired GB869481A (en) | 1958-11-03 | 1959-05-11 | Improvements in or relating to the electro-polishing of zinc and zinc alloys |
| GB4226/60D Expired GB899052A (en) | 1958-11-03 | 1960-02-05 | Improvements in or relating to electropolishing of zinc and zinc alloys |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16091/59A Expired GB869481A (en) | 1958-11-03 | 1959-05-11 | Improvements in or relating to the electro-polishing of zinc and zinc alloys |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US3088886A (en) |
| BE (1) | BE587387A (en) |
| CH (1) | CH396562A (en) |
| DE (1) | DE1118562B (en) |
| FR (2) | FR1233745A (en) |
| GB (2) | GB869481A (en) |
| NL (1) | NL239247A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637377A (en) * | 2016-12-19 | 2017-05-10 | 二重集团（德阳）重型装备股份有限公司 | Nickel-based alloy electrolytic polishing liquid and polishing method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010084213A1 (en) * | 2009-01-26 | 2010-07-29 | Metal Finishing Development Sl | Means, process and device for superficial treatment of surfaces of parts of gold or alloys thereof |
| CN116555873A (en) * | 2023-06-25 | 2023-08-08 | 无锡太湖学院 | Carbon steel surface galvanizing device and carbon steel surface silverization protection treatment process |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US670201A (en) * | 1900-10-11 | 1901-03-19 | Ferdinand F Cimiotti | Process of producing zinc oxid and nitrites. |
| US931513A (en) * | 1907-03-21 | 1909-08-17 | Chem Fab Griesheim Electron | Electrode. |
| US2075623A (en) * | 1934-11-12 | 1937-03-30 | Du Pont | Zinc plating |
| US2154469A (en) * | 1934-12-17 | 1939-04-18 | Du Pont | Bright dip |
| US2101580A (en) * | 1936-05-02 | 1937-12-07 | Udylite Company | Process for obtaining bright zinc coating |
| US2384660A (en) * | 1940-03-11 | 1945-09-11 | Bethlehem Steel Corp | Apparatus for electrolytic galvanizing of sheets |
| NL69965C (en) * | 1945-08-10 | |||
| GB626244A (en) * | 1946-04-17 | 1949-07-12 | Du Pont | Production of smooth electrodeposits |
| US2610144A (en) * | 1947-02-08 | 1952-09-09 | Oneida Ltd | Method of electropolishing |
| US2655472A (en) * | 1949-12-16 | 1953-10-13 | Robert V Hilliard | Process of extracting and recovering metals by leaching and electrolysis |
| GB724829A (en) * | 1953-04-01 | 1955-02-23 | Siemens & Halske G M B H | A process for electrolytically polishing articles made of, or substantially of, gold |
| BE528448A (en) * | 1953-04-28 | |||
| US2799636A (en) * | 1954-03-03 | 1957-07-16 | Coats & Clark | Processing of separable fastener stringers |
-
0
- NL NL239247D patent/NL239247A/xx unknown
-
1958
- 1958-11-03 US US771507A patent/US3088886A/en not_active Expired - Lifetime
-
1959
- 1959-02-09 US US791840A patent/US3088887A/en not_active Expired - Lifetime
- 1959-03-26 DE DED30300A patent/DE1118562B/en active Pending
- 1959-05-11 GB GB16091/59A patent/GB869481A/en not_active Expired
- 1959-07-02 CH CH7522959A patent/CH396562A/en unknown
- 1959-07-07 FR FR799584A patent/FR1233745A/en not_active Expired
-
1960
- 1960-02-05 GB GB4226/60D patent/GB899052A/en not_active Expired
- 1960-02-08 BE BE587387A patent/BE587387A/en unknown
- 1960-02-08 FR FR817878A patent/FR77123E/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106637377A (en) * | 2016-12-19 | 2017-05-10 | 二重集团（德阳）重型装备股份有限公司 | Nickel-based alloy electrolytic polishing liquid and polishing method thereof |
| CN106637377B (en) * | 2016-12-19 | 2019-03-19 | 二重（德阳）重型装备有限公司 | Nickel-base alloy electrolytic polishing liquid and its polishing method |
Also Published As
| Publication number | Publication date |
|---|---|
| US3088887A (en) | 1963-05-07 |
| BE587387A (en) | 1960-05-30 |
| CH396562A (en) | 1965-07-31 |
| FR77123E (en) | 1962-01-19 |
| DE1118562B (en) | 1961-11-30 |
| GB869481A (en) | 1961-05-31 |
| NL239247A (en) | |
| US3088886A (en) | 1963-05-07 |
| FR1233745A (en) | 1960-10-12 |
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