JPS55154529A - Manufacture of soft steel sheet by continuous annealing - Google Patents
Manufacture of soft steel sheet by continuous annealingInfo
- Publication number
- JPS55154529A JPS55154529A JP6052279A JP6052279A JPS55154529A JP S55154529 A JPS55154529 A JP S55154529A JP 6052279 A JP6052279 A JP 6052279A JP 6052279 A JP6052279 A JP 6052279A JP S55154529 A JPS55154529 A JP S55154529A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- temp
- steel sheet
- central part
- longitudinal ends
- 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
- Coating With Molten Metal (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE: To secure uniform quality and to prevent the formation of orange peel, by, in manufacture of steel sheet excellent in press formability by continuous annealing, winding in hot rolling its both longitudinal ends at high temp., and the other portion while pouring water to the specific central part in lateral direction.
CONSTITUTION: After hot rolled, a slab made of aluminum-killed steel of low carbon content is pickled, cold rolled, and continuously annealed so as to recrystallize it, hereby steel sheet for press formation is manufactured. In time of winding after hot rolling, while pouring water only to 1/3W3/4 portion in the laterally central part of the steel sheet, the portion ranging 20W200m from both longitudinal ends is wound at a temp. 760W800°C, and the other part at a temp. 660W760°C. In the case of rimmed steel, capped steel, silicon-semikilled steel, or aluminum-killed steel of low carbon content, the portion in the range 20W200m from both longitudinal ends is wound at a temp. 710W760°C, and the other portion at a temp. 650W710°C while pouring water only to 1/3W1/4 portion in the laterally central part.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6052279A JPS55154529A (en) | 1979-05-18 | 1979-05-18 | Manufacture of soft steel sheet by continuous annealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6052279A JPS55154529A (en) | 1979-05-18 | 1979-05-18 | Manufacture of soft steel sheet by continuous annealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55154529A true JPS55154529A (en) | 1980-12-02 |
Family
ID=13144721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6052279A Pending JPS55154529A (en) | 1979-05-18 | 1979-05-18 | Manufacture of soft steel sheet by continuous annealing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55154529A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016141848A (en) * | 2015-02-03 | 2016-08-08 | Ｊｆｅスチール株式会社 | Method for producing high strength steel sheet having excellent moldability |
-
1979
- 1979-05-18 JP JP6052279A patent/JPS55154529A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016141848A (en) * | 2015-02-03 | 2016-08-08 | Ｊｆｅスチール株式会社 | Method for producing high strength steel sheet having excellent moldability |
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