GB704945A - Improvements in or relating to electrolytes and to methods for electropolishing and electrodeburring - Google Patents
Improvements in or relating to electrolytes and to methods for electropolishing and electrodeburringInfo
- Publication number
- GB704945A GB704945A GB8756/50A GB875650A GB704945A GB 704945 A GB704945 A GB 704945A GB 8756/50 A GB8756/50 A GB 8756/50A GB 875650 A GB875650 A GB 875650A GB 704945 A GB704945 A GB 704945A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- trivalent
- electrolyte
- sulphuric acid
- electro
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
704,945. Electro-polishing and electrodeburring steel. SOC. JACQUET-HISPANO SUIZA. April 6, 1950 [April 7, 1949], No. 8756/50. Class 41. A process for continuously and simultaneously electro-polishing and electro-deburring a metal selected from the group consisting of low and high carbon steels and low alloy steels, comprises making the metal the anode in an electrolyte containing sulphuric acid, phosphoric acid and water, maintaining dissolved stable trivalent metal or metals to the amount of between 1 per cent. and 3 per cent. by adding to the bath one or more trivalent metals selected from the group consisting of aluminium, molybdenum, titanium, tungsten and zirconium, and passing an electric current through the electrolyte while maintaining the electrolyte at a suitable temperature. Dissolved trivalent chromium and trivalent iron may partly take the place of the other trivalent metals specified. The electrolyte may contain from 5 per cent. to 85 per cent. sulphuric acid and from 5 per cent. to 85 per cent. phosphoric acid, the combined sulphuric acid and phosphoric acid content being from 50 per cent. to 95 per cent. The current density at the anode may be from 75 to 200 amps per sq. ft. and the temperature may be from 150‹F. to 220‹F. Ferrous sulphate precipitated by electrolysis is removed and the sulphate loss is made up by additional sulphuric acid. Specifications 526,854 and 645,453 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US289706XA | 1949-04-07 | 1949-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB704945A true GB704945A (en) | 1954-03-03 |
Family
ID=21846508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8756/50A Expired GB704945A (en) | 1949-04-07 | 1950-04-06 | Improvements in or relating to electrolytes and to methods for electropolishing and electrodeburring |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE494931A (en) |
| CH (1) | CH289706A (en) |
| DE (1) | DE808519C (en) |
| GB (1) | GB704945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066370A (en) * | 1990-09-07 | 1991-11-19 | International Business Machines Corporation | Apparatus, electrochemical process, and electrolyte for microfinishing stainless steel print bands |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1087867B (en) * | 1955-02-09 | 1960-08-25 | Reynolds Metals Co | Manufacture of aluminum foils for electromagnetic windings |
| DE102005037563B3 (en) * | 2005-08-09 | 2006-09-28 | Poligrat Gmbh | Process for electrochemical polishing of alloy steels useful for for electropolishing of steel, especially stainless steel involves using chromium-free electrolyte containing phosphoric acid and sulfuric acids |
-
0
- BE BE494931D patent/BE494931A/xx unknown
-
1950
- 1950-03-27 CH CH289706D patent/CH289706A/en unknown
- 1950-04-06 GB GB8756/50A patent/GB704945A/en not_active Expired
- 1950-04-06 DE DES2675A patent/DE808519C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5066370A (en) * | 1990-09-07 | 1991-11-19 | International Business Machines Corporation | Apparatus, electrochemical process, and electrolyte for microfinishing stainless steel print bands |
Also Published As
| Publication number | Publication date |
|---|---|
| CH289706A (en) | 1953-03-31 |
| BE494931A (en) | |
| DE808519C (en) | 1951-07-16 |
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