JPS6425997A - Production of composite plated steel sheet having high corrosion resistance - Google Patents
Production of composite plated steel sheet having high corrosion resistanceInfo
- Publication number
- JPS6425997A JPS6425997A JP11112188A JP11112188A JPS6425997A JP S6425997 A JPS6425997 A JP S6425997A JP 11112188 A JP11112188 A JP 11112188A JP 11112188 A JP11112188 A JP 11112188A JP S6425997 A JPS6425997 A JP S6425997A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- corrosion resistance
- expressed
- terms
- production
- 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
Landscapes
- Electroplating Methods And Accessories (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
PURPOSE:To improve the corrosion resistance of a galvanized steel sheet and the adhesion to paint after coating by adding prescribed amts. of water soluble compds. of Co<2+> and Cr<3+>, pseudo-boehmitic alumina sol and colloidal silica to an acidic galvanizing bath. CONSTITUTION:0.3-60g (expressed in terms of metallic Co) one or more kinds of water soluble compds. of Co<2+>, 0.2-2.5g (expressed in terms of metallic Cr) one or more kinds of water soluble compds. of Cr<3+>, 0.5-20g (expressed in terms of alumina) pseudo-boehmitic alumina sol and 0.5-20g (expressed in terms of silica) colloidal silica are prepd. They are added to 1l acidic galvanizing bath and a steel sheet is galvanized with the resulting bath.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11112188A JPS6425997A (en) | 1988-05-07 | 1988-05-07 | Production of composite plated steel sheet having high corrosion resistance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11112188A JPS6425997A (en) | 1988-05-07 | 1988-05-07 | Production of composite plated steel sheet having high corrosion resistance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6425997A true JPS6425997A (en) | 1989-01-27 |
JPH0461080B2 JPH0461080B2 (en) | 1992-09-29 |
Family
ID=14552964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11112188A Granted JPS6425997A (en) | 1988-05-07 | 1988-05-07 | Production of composite plated steel sheet having high corrosion resistance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6425997A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013541646A (en) * | 2010-11-05 | 2013-11-14 | マクダーミッド アキューメン インコーポレーテッド | Dark chrome electrodeposits |
-
1988
- 1988-05-07 JP JP11112188A patent/JPS6425997A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013541646A (en) * | 2010-11-05 | 2013-11-14 | マクダーミッド アキューメン インコーポレーテッド | Dark chrome electrodeposits |
Also Published As
Publication number | Publication date |
---|---|
JPH0461080B2 (en) | 1992-09-29 |
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