JPS5619902A - Slab with curved end - Google Patents
Slab with curved endInfo
- Publication number
- JPS5619902A JPS5619902A JP9594779A JP9594779A JPS5619902A JP S5619902 A JPS5619902 A JP S5619902A JP 9594779 A JP9594779 A JP 9594779A JP 9594779 A JP9594779 A JP 9594779A JP S5619902 A JPS5619902 A JP S5619902A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- breadth
- broadside
- end part
- pass
- 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
- 238000005096 rolling process Methods 0.000 abstract 5
- 210000000988 bone and bone Anatomy 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/026—Rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/10—Lateral spread defects
- B21B2263/12—Dog bone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To make the breadth of the slab after the roughing pass uniform, and to prevent the decline of the product yield, by giving the slab end before being fed to the broadside rolling pass the specified curvature in order to make the slab breadth narrow. CONSTITUTION:By previously giving the end part 1 the curvature as shown in the figure A, the breadth of slab B is narrowed to the specified breadth; this slab S is fitted into the edger roll (e) as shown in the figure B. At this point of time, the correction of breadth of the end part 1 is not performed. Next, the broadside rolling work is applied over the taper part 3 to the middle part 2 successively; with the progress of this rolling pass, the excess metal caused by the broadside rolling work is formed into the dog bone 4 along the side edge. Accordingly, the broadside rolled slab possesses the curved part at the end part 1 and the dog 4 at the middle part 3 (as shown in figure C). As a result, at the flat rolling pass shown in figure D, the slab is rolled into uniform breadth possessing no thickness deviation over whole length, so that the trimming of the end part of the product becomes unnecessary as shown in figure E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9594779A JPS5857241B2 (en) | 1979-07-27 | 1979-07-27 | Slabs with curved ends |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9594779A JPS5857241B2 (en) | 1979-07-27 | 1979-07-27 | Slabs with curved ends |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5619902A true JPS5619902A (en) | 1981-02-25 |
| JPS5857241B2 JPS5857241B2 (en) | 1983-12-19 |
Family
ID=14151448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9594779A Expired JPS5857241B2 (en) | 1979-07-27 | 1979-07-27 | Slabs with curved ends |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857241B2 (en) |
-
1979
- 1979-07-27 JP JP9594779A patent/JPS5857241B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5857241B2 (en) | 1983-12-19 |
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