GB267080A - Improvements in or relating to chromium plating - Google Patents
Improvements in or relating to chromium platingInfo
- Publication number
- GB267080A GB267080A GB20777/26A GB2077726A GB267080A GB 267080 A GB267080 A GB 267080A GB 20777/26 A GB20777/26 A GB 20777/26A GB 2077726 A GB2077726 A GB 2077726A GB 267080 A GB267080 A GB 267080A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plating
- current
- bath
- cathode
- article
- 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
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/38—Pretreatment of metallic surfaces to be electroplated of refractory metals or nickel
- C25D5/40—Nickel; Chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Abstract
267,080. Metals Protection Corporation, (Assignees of Pierce, H. C.). March 5, 1926, [Convention date]. Chromiuin, depositing; metals, pickling.-Iron, steel or nickel articles are anodically treated in the plating or another bath before electroplating with chromium. In an example, the article is cleaned in an alkaline bath, preferably while connected as a cathode, in order to remove oxides. It is then mixed in cold water and suspended by an iron wire in a chromium plating bath of ordinary composition. It is first connected as anode, the current being regulated so as to cause slight gassing; the current is reversed after a suitable period. The article may also be connected alternately as cathode and as anode during the preliminary treatment; in this case the last anodic treatment should be sufficiently long to remove the previous deposit. The current density in the final plating may be 40-200 amps. per sq. ft. When the articles to be coloured by buffing after plating, the current density should be lowered to the minimum value shortly before completion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US92615A US1645927A (en) | 1926-03-05 | 1926-03-05 | Chromium plating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB267080A true GB267080A (en) | 1927-03-17 |
Family
ID=22234132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20777/26A Expired GB267080A (en) | 1926-03-05 | 1926-08-23 | Improvements in or relating to chromium plating |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1645927A (en) |
| DE (1) | DE484206C (en) |
| FR (1) | FR620838A (en) |
| GB (1) | GB267080A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2603593A (en) * | 1952-07-15 | Electeodepositiqn of metaiis | ||
| BE462163A (en) * | 1942-11-21 | 1900-01-01 | ||
| BE522608A (en) * | 1953-01-16 | |||
| US2791553A (en) * | 1956-02-15 | 1957-05-07 | Gen Electric | Method of electroplating aluminum |
| US4052270A (en) * | 1975-05-27 | 1977-10-04 | Ultra Plating Corporation | Methods for manufacturing pellet sizing screen rods |
| JPS5464034A (en) * | 1977-10-31 | 1979-05-23 | Toyo Kohan Co Ltd | Pretreatment of steel plate treated with electrolytic chromic acid |
| SE429765B (en) * | 1982-02-09 | 1983-09-26 | Jouko Korpi | SET ON ELECTROPLETING |
| JPH0637713B2 (en) * | 1988-02-27 | 1994-05-18 | 日本鋼管株式会社 | Method for producing electrolytic chromate treated steel sheet |
| JP2576570B2 (en) * | 1988-02-27 | 1997-01-29 | 日本鋼管株式会社 | Pretreatment method for electrolytic chromate treated steel sheet |
| FR2646174B1 (en) * | 1989-04-25 | 1992-04-30 | Pechiney Aluminium | METHOD AND DEVICE FOR CONTINUOUS COATING OF ELECTRICALLY CONDUCTIVE SUBSTRATES BY HIGH SPEED ELECTROLYSIS |
| US10208392B1 (en) | 2017-08-16 | 2019-02-19 | Kings Mountain International, Inc. | Method for creating a chromium-plated surface with a matte finish |
-
1926
- 1926-03-05 US US92615A patent/US1645927A/en not_active Expired - Lifetime
- 1926-08-23 GB GB20777/26A patent/GB267080A/en not_active Expired
- 1926-08-27 FR FR620838D patent/FR620838A/en not_active Expired
- 1926-08-28 DE DEM95962D patent/DE484206C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE484206C (en) | 1929-10-12 |
| FR620838A (en) | 1927-04-29 |
| US1645927A (en) | 1927-10-18 |
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