JPS6475650A - Hot-dipped steel sheet having high yield point and superior adhesive strength of plating and its manufacture - Google Patents
Hot-dipped steel sheet having high yield point and superior adhesive strength of plating and its manufactureInfo
- Publication number
- JPS6475650A JPS6475650A JP23253287A JP23253287A JPS6475650A JP S6475650 A JPS6475650 A JP S6475650A JP 23253287 A JP23253287 A JP 23253287A JP 23253287 A JP23253287 A JP 23253287A JP S6475650 A JPS6475650 A JP S6475650A
- Authority
- JP
- Japan
- Prior art keywords
- hot
- steel sheet
- hot dip
- plating
- adhesive strength
- 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.)
- Pending
Links
Landscapes
- Heat Treatment Of Sheet Steel (AREA)
- Coating With Molten Metal (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE:To obtain a hot dip galvanized steel sheet having high yield point and excellent in bendability and adhesive strength of plating, by subjecting a slab in which specific amounts of B and Nb are combindly added to hot rolling, cold rolling, and imperfect recrystallization annealing under specific conditions and then applying hot dip galvanizing to the above. CONSTITUTION:At the time of manufacturing a corrosion-resisting hot dip galvanized steel sheet used in various fields such as automobiles, household electrical appliances, and buildings, a slab having a composition containing, by weight, 0.01-0.15% C, <0.30% Si, <1.0% Mn, <0.06% P, <0.10% acid- soluble Al, 0.005-0.04% Nb, <0.0060% N, and N%X11/14-N%X11/14+0.0030% B is hot-rolled into a plate, which is coiled at <=650 deg.C. Successively, this plate is worked to the final thickness by means of cold rolling at >=30% draft, and the resulting sheet is subjected to imperfect recrystallization annealing at >=650 deg.C for <=40sec, followed by hot dip galvanizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23253287A JPS6475650A (en) | 1987-09-18 | 1987-09-18 | Hot-dipped steel sheet having high yield point and superior adhesive strength of plating and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23253287A JPS6475650A (en) | 1987-09-18 | 1987-09-18 | Hot-dipped steel sheet having high yield point and superior adhesive strength of plating and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6475650A true JPS6475650A (en) | 1989-03-22 |
Family
ID=16940813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23253287A Pending JPS6475650A (en) | 1987-09-18 | 1987-09-18 | Hot-dipped steel sheet having high yield point and superior adhesive strength of plating and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6475650A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992016668A1 (en) * | 1991-03-15 | 1992-10-01 | Nippon Steel Corporation | High-strength, cold-rolled steel sheet excellent in formability, hot-dip zinc coated high-strength cold rolled steel sheet, and method of manufacturing said sheets |
-
1987
- 1987-09-18 JP JP23253287A patent/JPS6475650A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992016668A1 (en) * | 1991-03-15 | 1992-10-01 | Nippon Steel Corporation | High-strength, cold-rolled steel sheet excellent in formability, hot-dip zinc coated high-strength cold rolled steel sheet, and method of manufacturing said sheets |
| US5384206A (en) * | 1991-03-15 | 1995-01-24 | Nippon Steel Corporation | High-strength cold-rolled steel strip and molten zinc-plated high-strength cold-rolled steel strip having good formability and method of producing such strips |
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