FR2109018A1 - Chromium plating - accelerated by fast electrolyte circulation between electrodes - Google Patents
Chromium plating - accelerated by fast electrolyte circulation between electrodesInfo
- Publication number
- FR2109018A1 FR2109018A1 FR7039337A FR7039337A FR2109018A1 FR 2109018 A1 FR2109018 A1 FR 2109018A1 FR 7039337 A FR7039337 A FR 7039337A FR 7039337 A FR7039337 A FR 7039337A FR 2109018 A1 FR2109018 A1 FR 2109018A1
- Authority
- FR
- France
- Prior art keywords
- accelerated
- electrodes
- chromium plating
- electrolyte circulation
- electrolyte
- 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.)
- Withdrawn
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
- C25D5/08—Electroplating with moving electrolyte e.g. jet electroplating
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
Electrolytic Cr-plating is carried out with the electrolyte being passed at a speed of 1-50 m/sec through the electrode gas and a current density of between 200 and 1200 A/dm2. The ratio between the electrolyte circulating speed and the current density is between 1:24 and 1:200. The contours of the workpiece cathode and the anode should be parallel so that a constant gap is formed for the electrolyte. The process is between 10-20 times faster, than conventional methods, and permits deposn. thicknesses of =200 mu m of improved hardness.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7039337A FR2109018A1 (en) | 1970-10-30 | 1970-10-30 | Chromium plating - accelerated by fast electrolyte circulation between electrodes |
DE19702053382 DE2053382A1 (en) | 1970-10-30 | 1970-10-30 | Process for the electrical chrome plating of metal surfaces in the electrolyte flow |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7039337A FR2109018A1 (en) | 1970-10-30 | 1970-10-30 | Chromium plating - accelerated by fast electrolyte circulation between electrodes |
DE19702053382 DE2053382A1 (en) | 1970-10-30 | 1970-10-30 | Process for the electrical chrome plating of metal surfaces in the electrolyte flow |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2109018A1 true FR2109018A1 (en) | 1972-05-26 |
Family
ID=25759999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7039337A Withdrawn FR2109018A1 (en) | 1970-10-30 | 1970-10-30 | Chromium plating - accelerated by fast electrolyte circulation between electrodes |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2053382A1 (en) |
FR (1) | FR2109018A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2258466A1 (en) * | 1974-01-23 | 1975-08-18 | Rotel Holding Ag | |
FR2289636A1 (en) * | 1974-10-29 | 1976-05-28 | Rotel Ag | Chromium electro-plating bath contg metal complex - of polyhalogenated polycarboxylic acid improving throwing power and hardness |
-
1970
- 1970-10-30 FR FR7039337A patent/FR2109018A1/en not_active Withdrawn
- 1970-10-30 DE DE19702053382 patent/DE2053382A1/en active Pending
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2258466A1 (en) * | 1974-01-23 | 1975-08-18 | Rotel Holding Ag | |
FR2289636A1 (en) * | 1974-10-29 | 1976-05-28 | Rotel Ag | Chromium electro-plating bath contg metal complex - of polyhalogenated polycarboxylic acid improving throwing power and hardness |
Also Published As
Publication number | Publication date |
---|---|
DE2053382A1 (en) | 1972-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |