CA2245894A1 - Hot-dip zn-al-mg plated steel sheet good in corrosion resistance and surface appearance and method of producing the same - Google Patents
Hot-dip zn-al-mg plated steel sheet good in corrosion resistance and surface appearance and method of producing the sameInfo
- Publication number
- CA2245894A1 CA2245894A1 CA 2245894 CA2245894A CA2245894A1 CA 2245894 A1 CA2245894 A1 CA 2245894A1 CA 2245894 CA2245894 CA 2245894 CA 2245894 A CA2245894 A CA 2245894A CA 2245894 A1 CA2245894 A1 CA 2245894A1
- Authority
- CA
- Canada
- Prior art keywords
- coating layer
- plating bath
- steel sheet
- phase
- hot
- 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
- Coating With Molten Metal (AREA)
Abstract
A steel sheet having on the surface thereof a coating layer which is formed by hot dipping and which consists of 4.0 to 10 wt.% of Al, 1.0 to 4.0 wt.% of Mg and the balance consisting of Zn and unavoidable impurities, the coating layer having a metallic structure in which a proeutectic Al phase or both of a proeutectic Al phase and a single Zn phase are dispersed in a matrix of an Al/Zn/Zn2 Mg ternary eutectic structure. The coating layer having such a metallic structure can be formed by properly controlling the rate of cooling the coating layer adhering to the steel strip pulled up from a plating bath in continuous plating equipment and the temperature of the plating bath and/or by adding proper amounts of Ti and B into the plating bath. The streaking inherent in such a coated steel sheets is inhibited by controlling the configuration of a magnesium-containing film generated until the solidification of the coating layer or by the addition of a proper amount of Be into the plating bath.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35246796 | 1996-12-13 | ||
| JP8/352467 | 1996-12-13 | ||
| JP9/63923 | 1997-03-04 | ||
| JP6392397 | 1997-03-04 | ||
| JP9-162035 | 1997-06-05 | ||
| JP16203597 | 1997-06-05 | ||
| JP9/316631 | 1997-11-04 | ||
| JP31663197A JP3201469B2 (en) | 1997-11-04 | 1997-11-04 | Mg-containing hot-dip Zn-base plated steel sheet |
| PCT/JP1997/004594 WO1998026103A1 (en) | 1996-12-13 | 1997-12-12 | HOT-DIP Zn-Al-Mg COATED STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AND SURFACE APPEARANCE AND PROCESS FOR THE PRODUCTION THEREOF |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2245894A1 true CA2245894A1 (en) | 1998-06-18 |
| CA2245894C CA2245894C (en) | 2006-01-17 |
Family
ID=29424799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2245894 Expired - Lifetime CA2245894C (en) | 1996-12-13 | 1997-12-12 | Hot-dip zn-al-mg plated steel sheet good in corrosion resistance and surface appearance and method of producing the same |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2245894C (en) |
-
1997
- 1997-12-12 CA CA 2245894 patent/CA2245894C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2245894C (en) | 2006-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20171212 |