JPS5558386A - Zinc-trivalent chrome electric plating bath - Google Patents
Zinc-trivalent chrome electric plating bathInfo
- Publication number
- JPS5558386A JPS5558386A JP13080278A JP13080278A JPS5558386A JP S5558386 A JPS5558386 A JP S5558386A JP 13080278 A JP13080278 A JP 13080278A JP 13080278 A JP13080278 A JP 13080278A JP S5558386 A JPS5558386 A JP S5558386A
- Authority
- JP
- Japan
- Prior art keywords
- zinc
- plating bath
- chrome
- sulfate
- bath
- 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.)
- Granted
Links
Abstract
PURPOSE: To obtain zinc-trivalent chrome electric plating bath capable of forming galvanized film possessing uniform and excellent surface color tone and luster and excelling in corrosion resistance, by adding trivalent chrome salt into acid zinc electric plating bath.
CONSTITUTION: As acidie zinc plating bath, a bath of zinc sulfate, zinc chloride or the like is used, of which concentration is controlled in a wide range from 20W 30g/l, to 300W500g/l and pH is adjusted at 2.5W5.5. At least one kind of water soluble trivalent chrome salt such as chloride, nitrate, sulfate and potassium sulfate of chrome is added to this acid bath at the rate of 1W80g/l. Besides, conductive salt such as ammonium sulfate, pH buffer such as boric acid, and lustering agent are added as required. A galvanized layer formed by using this plating bath has a chrome content of 20W30ppm, and possesses a pearl-like bright zinc luster and uniform color tone, so that subsequent chromate treatment may not be necessary.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13080278A JPS5856039B2 (en) | 1978-10-24 | 1978-10-24 | Zinc-trivalent chromium electroplating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13080278A JPS5856039B2 (en) | 1978-10-24 | 1978-10-24 | Zinc-trivalent chromium electroplating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5558386A true JPS5558386A (en) | 1980-05-01 |
| JPS5856039B2 JPS5856039B2 (en) | 1983-12-13 |
Family
ID=15043042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13080278A Expired JPS5856039B2 (en) | 1978-10-24 | 1978-10-24 | Zinc-trivalent chromium electroplating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5856039B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316789A (en) * | 1993-08-27 | 1994-11-15 | Matsufumi Takatani | Composite chromium plating and plating method |
| JPH08218193A (en) * | 1995-02-14 | 1996-08-27 | Sumitomo Metal Ind Ltd | Organic film compositely coated steel sheet |
| CN103225093A (en) * | 2013-04-27 | 2013-07-31 | 重庆科发表面处理有限责任公司 | Full bright electroplating zinc-chromium alloy solution |
-
1978
- 1978-10-24 JP JP13080278A patent/JPS5856039B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06316789A (en) * | 1993-08-27 | 1994-11-15 | Matsufumi Takatani | Composite chromium plating and plating method |
| JPH08218193A (en) * | 1995-02-14 | 1996-08-27 | Sumitomo Metal Ind Ltd | Organic film compositely coated steel sheet |
| CN103225093A (en) * | 2013-04-27 | 2013-07-31 | 重庆科发表面处理有限责任公司 | Full bright electroplating zinc-chromium alloy solution |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5856039B2 (en) | 1983-12-13 |
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