JPS5582731A - Manufacture of low-yield-point cold-rolled steel plate - Google Patents
Manufacture of low-yield-point cold-rolled steel plateInfo
- Publication number
- JPS5582731A JPS5582731A JP15476878A JP15476878A JPS5582731A JP S5582731 A JPS5582731 A JP S5582731A JP 15476878 A JP15476878 A JP 15476878A JP 15476878 A JP15476878 A JP 15476878A JP S5582731 A JPS5582731 A JP S5582731A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- temp
- cold rolled
- rolling
- low
- 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
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
PURPOSE: To efficiently manufacture the title plate by finishing hot rolling of a low carbon material for the plate in a specified temp. range after which the plate is quenched under specified conditions, coiled, allowed to cool, cold rolled, and annealed to reduce the time required for pickling.
CONSTITUTION: When a 0,005W0.03% C-contg. material for a cold rolled steel plate is hot rolled, the hot rolling is finished in the temp. range of 600W820°C. After the rolling the plate is quenched to a temp. of 300W450°C at a cooling rate of 12W 85°C/sec, coiled at the temp., allowed to slowly cool, cold rolled, and annealed. By this method low temp. coiling is adopted, so scale of the hot rolled plate is thin. Accordingly, the plate is cold rolled without being pickled prior to the rolling, thus cracking the scale, and the cold rolled can efficiently be pickled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15476878A JPS6041689B2 (en) | 1978-12-15 | 1978-12-15 | Manufacturing method of low yield point cold rolled steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15476878A JPS6041689B2 (en) | 1978-12-15 | 1978-12-15 | Manufacturing method of low yield point cold rolled steel sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5582731A true JPS5582731A (en) | 1980-06-21 |
| JPS6041689B2 JPS6041689B2 (en) | 1985-09-18 |
Family
ID=15591462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15476878A Expired JPS6041689B2 (en) | 1978-12-15 | 1978-12-15 | Manufacturing method of low yield point cold rolled steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6041689B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57192224A (en) * | 1981-05-20 | 1982-11-26 | Kawasaki Steel Corp | Production of al-killed cold-rolled steel sheet excellent in press-formability |
-
1978
- 1978-12-15 JP JP15476878A patent/JPS6041689B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57192224A (en) * | 1981-05-20 | 1982-11-26 | Kawasaki Steel Corp | Production of al-killed cold-rolled steel sheet excellent in press-formability |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6041689B2 (en) | 1985-09-18 |
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