GB522177A - Improvements relating to removing scale from metal - Google Patents
Improvements relating to removing scale from metalInfo
- Publication number
- GB522177A GB522177A GB35219/38A GB3521938A GB522177A GB 522177 A GB522177 A GB 522177A GB 35219/38 A GB35219/38 A GB 35219/38A GB 3521938 A GB3521938 A GB 3521938A GB 522177 A GB522177 A GB 522177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dec
- cathode
- metal
- scale
- treatment
- 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
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/12—Pickling; Descaling in melts
- C25F1/14—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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
522,177. Electrolytic pickling. ALLOY RESEARCH CORPORATION. Dec. 2, 1938, No. 35219. Convention date, Dec. 30, 1937. [Class 41] Scale is removed from chromium alloy or steel products by treatment in a bath of fused alkali, e.g., sodium hydroxide first as cathode, then as anode, and again as cathode. For treating very dense scale further alternations of the electrolytic treatment may be employed, the last step always being cathodic. The articles are then treated with dilute sulphuric acid to remove alkali and finally pickled, e.g., in an aqueous solution of nitric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US182631A US2261744A (en) | 1937-12-30 | 1937-12-30 | Metal cleansing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB522177A true GB522177A (en) | 1940-06-11 |
Family
ID=22669337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35219/38A Expired GB522177A (en) | 1937-12-30 | 1938-12-02 | Improvements relating to removing scale from metal |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2261744A (en) |
| FR (1) | FR847873A (en) |
| GB (1) | GB522177A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2441776A (en) * | 1938-10-21 | 1948-05-18 | Freeport Sulphur Co | Process of metal coating metal articles |
| US2678289A (en) * | 1944-06-02 | 1954-05-11 | Pottberg Rolfe | Metal surface treatment |
| US2515148A (en) * | 1945-02-05 | 1950-07-11 | Kolene Corp | Method of preparing ferrous metal for heat-treatment |
| US2542994A (en) * | 1945-07-09 | 1951-02-27 | Armco Steel Corp | Electrolytic surface treatment of steel |
| US2538055A (en) * | 1945-12-29 | 1951-01-16 | Hooker Electrochemical Co | Electrolytic process for removing oxide from the surface of metals |
| US2468006A (en) * | 1948-06-23 | 1949-04-19 | J H Shoemaker | Electrolytic cleaning of metal |
| US3096261A (en) * | 1959-05-25 | 1963-07-02 | Hooker Chemical Corp | Salt bath for electrolytic cleaning of metals |
| JP6189639B2 (en) * | 2013-05-27 | 2017-08-30 | 株式会社パーカーコーポレーション | Casting surface cleaning method |
-
1937
- 1937-12-30 US US182631A patent/US2261744A/en not_active Expired - Lifetime
-
1938
- 1938-12-02 GB GB35219/38A patent/GB522177A/en not_active Expired
- 1938-12-21 FR FR847873D patent/FR847873A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2261744A (en) | 1941-11-04 |
| FR847873A (en) | 1939-10-18 |
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