JPS57152304A - Correcting method for plane shape in rolling of plate - Google Patents
Correcting method for plane shape in rolling of plateInfo
- Publication number
- JPS57152304A JPS57152304A JP3705481A JP3705481A JPS57152304A JP S57152304 A JPS57152304 A JP S57152304A JP 3705481 A JP3705481 A JP 3705481A JP 3705481 A JP3705481 A JP 3705481A JP S57152304 A JPS57152304 A JP S57152304A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- shape
- corner angle
- broadside
- angle
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To reduce the amt. of discarding occuring in the shape defects produced during broadside rolling by screwing down a steel plate after the broadside rolling at the angle at which it inclines to the rolling axis down to the middle-part then subjecting the same to ordinary finish rolling. CONSTITUTION:A steel plate of which the corner angle part is lost by forming a circular shape after broadside rolling is rotated by a turntable or the like to the angle at which it inclines to a rolling axis 5 in such a way that the gnawing starts from a corner angle part 4. In this position, it is screwed down to the middle part at prescribed draft whereby the part 4 is screwed down by length L. The lost part 4 forms the shape of 4' and a plane shape is corrected. The draft and the screw-down length are changed in accordance with the conditions of the shape defect of the corner angle part. Thereby, the plane shapes of the corner angle parts after the broadside rolling can be corrected for all such parts and therefore the need for excessive plate width is eliminated and the amt. of discarding is reduced considerably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3705481A JPS5946681B2 (en) | 1981-03-14 | 1981-03-14 | Planar shape correction method in thick plate rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3705481A JPS5946681B2 (en) | 1981-03-14 | 1981-03-14 | Planar shape correction method in thick plate rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57152304A true JPS57152304A (en) | 1982-09-20 |
| JPS5946681B2 JPS5946681B2 (en) | 1984-11-14 |
Family
ID=12486851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3705481A Expired JPS5946681B2 (en) | 1981-03-14 | 1981-03-14 | Planar shape correction method in thick plate rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946681B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772338A (en) * | 2014-01-13 | 2015-07-15 | 宝山钢铁股份有限公司 | Method for controlling shape of thick plate rolling plane |
-
1981
- 1981-03-14 JP JP3705481A patent/JPS5946681B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772338A (en) * | 2014-01-13 | 2015-07-15 | 宝山钢铁股份有限公司 | Method for controlling shape of thick plate rolling plane |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5946681B2 (en) | 1984-11-14 |
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