JPS55117503A - Rough rolling method in hot rolling - Google Patents
Rough rolling method in hot rollingInfo
- Publication number
- JPS55117503A JPS55117503A JP2504379A JP2504379A JPS55117503A JP S55117503 A JPS55117503 A JP S55117503A JP 2504379 A JP2504379 A JP 2504379A JP 2504379 A JP2504379 A JP 2504379A JP S55117503 A JPS55117503 A JP S55117503A
- Authority
- JP
- Japan
- Prior art keywords
- mill
- rolling
- reduction
- give
- train
- 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
Abstract
PURPOSE: To reduce the insufficiency of breadth generated in the front and rear ends of the steel sheet, by adjusting the rolling reduction of the vertical mill in the roughing mill train, so as to give a light reduction in the former stage of the mill train, and to give a heavy reduction in the latter stage of the mill train.
CONSTITUTION: In case of rolling the steel sheet by the hot rolling mill, the rolling reduction by the vertical mill in the roughing mill train is adjusted so as to give a light reduction by the former stage of the mill train, and to give a heavy reduction by the latter stage of the mill train; hereby, the breadth defective portion at the front and rear ends of the coil, caused due to the metal flow at performing the edging work by the vertical mill in the roughing stage of the hot strip mill, can be greatly reduced. As a result, the yield of the rolling work of the hot strip mill can be improved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54025043A JPS602927B2 (en) | 1979-03-06 | 1979-03-06 | Rough rolling method using hot strip mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54025043A JPS602927B2 (en) | 1979-03-06 | 1979-03-06 | Rough rolling method using hot strip mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55117503A true JPS55117503A (en) | 1980-09-09 |
| JPS602927B2 JPS602927B2 (en) | 1985-01-24 |
Family
ID=12154880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54025043A Expired JPS602927B2 (en) | 1979-03-06 | 1979-03-06 | Rough rolling method using hot strip mill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS602927B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6152902A (en) * | 1984-08-22 | 1986-03-15 | Nippon Steel Corp | Hot rolling method of preventing generation of flaw |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0433075Y2 (en) * | 1987-05-15 | 1992-08-07 |
-
1979
- 1979-03-06 JP JP54025043A patent/JPS602927B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6152902A (en) * | 1984-08-22 | 1986-03-15 | Nippon Steel Corp | Hot rolling method of preventing generation of flaw |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS602927B2 (en) | 1985-01-24 |
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