GB529944A - Improvements in polishing of stainless iron and steel - Google Patents
Improvements in polishing of stainless iron and steelInfo
- Publication number
- GB529944A GB529944A GB17239/39A GB1723939A GB529944A GB 529944 A GB529944 A GB 529944A GB 17239/39 A GB17239/39 A GB 17239/39A GB 1723939 A GB1723939 A GB 1723939A GB 529944 A GB529944 A GB 529944A
- Authority
- GB
- United Kingdom
- Prior art keywords
- anode
- sulphate
- organic acid
- bath
- per cent
- 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
- 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
- C25F3/24—Polishing of heavy metals of iron or steel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S29/00—Metal working
- Y10S29/012—Method or apparatus with electroplating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
529,944. Brightening metal surfaces by electrolytic treatment. ALLOY RESEARCH CORPORATION. June 13, 1939, No. 17239. Convention date, Feb. 6. [Class 41] Stainless iron or stainless steel is provided with a lustrous surface by anodic treatment in a bath containing an aliphatic carboxylic organic acid and sulphuric acid or a sulphate such as ferric sulphate. The organic acid should be one whose iron, nickel and chromium salts will readily flow from the anode. Suitable examples are citric, lactic, acetic, tartaric, formic, maleic, malic, succinic and gly eric acids. The proportion of organic acid may be 10-90 per cent. and that of sulphuric acid or sulphate 0.5-70 per cent. Water is preferably present. A current density of 0.5-40 amps per sq. inch may be employed. The bath is preferably maintained at a temperature between 50 and 125‹C. The cathode may be arranged above the anode to prevent shielding of the anode by liberated gases. Articles may be moved through the bath during treatment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US254888A US2335354A (en) | 1939-02-06 | 1939-02-06 | Polishing stainless iron and steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB529944A true GB529944A (en) | 1940-12-02 |
Family
ID=22965966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17239/39A Expired GB529944A (en) | 1939-02-06 | 1939-06-13 | Improvements in polishing of stainless iron and steel |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2335354A (en) |
| FR (1) | FR856912A (en) |
| GB (1) | GB529944A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2570748A (en) * | 1945-07-09 | 1951-10-09 | Armco Steel Corp | Wire drawing apparatus |
| BE476971A (en) * | 1947-01-28 | |||
| US2695872A (en) * | 1948-12-15 | 1954-11-30 | Armco Steel Corp | Electrolytic polishing method |
| US2928777A (en) * | 1950-12-16 | 1960-03-15 | Electro Process Inc | Electrolytic polishing of metals |
| CH313570A (en) * | 1951-09-20 | 1956-04-30 | Degussa | Process for the electrolytic polishing of objects made of gold and gold alloys |
| US4935112A (en) * | 1988-04-07 | 1990-06-19 | Seneca Wire And Manufacturing Company | Continuous steel strand electrolytic processing |
| US5087342A (en) * | 1988-04-07 | 1992-02-11 | Seneca Wire And Manufacturing Company | Continuous steel strand electrolytic processing |
| CN109778298A (en) * | 2019-03-19 | 2019-05-21 | 常州华森医疗器械有限公司 | A kind of electrolytic polishing liquid, burnishing device and polishing method |
-
1939
- 1939-02-06 US US254888A patent/US2335354A/en not_active Expired - Lifetime
- 1939-06-13 GB GB17239/39A patent/GB529944A/en not_active Expired
- 1939-06-26 FR FR856912D patent/FR856912A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2335354A (en) | 1943-11-30 |
| FR856912A (en) | 1940-08-16 |
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