JPS5619903A - Slab with end of wide breadth - Google Patents
Slab with end of wide breadthInfo
- Publication number
- JPS5619903A JPS5619903A JP9594879A JP9594879A JPS5619903A JP S5619903 A JPS5619903 A JP S5619903A JP 9594879 A JP9594879 A JP 9594879A JP 9594879 A JP9594879 A JP 9594879A JP S5619903 A JPS5619903 A JP S5619903A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- breadth
- dog bone
- end part
- earing
- 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
- 210000000988 bone and bone Anatomy 0.000 abstract 4
- 238000007688 edging Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 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 prevent the breadth of the slab end from being narrowed through the roughing pass, and to greatly improve the product yield, by previously forming the slab end before the edging pass into the wide breadth of specified dimension. CONSTITUTION:The end part 1 (figure A) previously formed into the specified wide breadth of the deformed slab S, is fed into the edger roll (e) being set to the narrow width; at the same time, the excess metal caused by correcting the breadth is swollen up at the side edge in order to form the dog bone 4 (figure B). Though this dog bone 4 is successively formed as far as the middle part 2, the size of the dog bone 4 of the middle part 2 is made smaller than that of the end part 1 (figure C). Next, this broadside rolled slab is flat rolled by the horizontal roll; hereby, only the end part 1 formed into a large dog bone 4 is formed into a little wider breadth (figure D), and then, the slab is formed into sheet possessing the earing 5 at the end part 1 (figure E). Next, this earing 5 is trimmed off to finish the product; hereupon, the extent of the trimming clearance is comparatively so small that the amount of the scrap is very small as compared with the conventional end cutting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9594879A JPS5619903A (en) | 1979-07-27 | 1979-07-27 | Slab with end of wide breadth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9594879A JPS5619903A (en) | 1979-07-27 | 1979-07-27 | Slab with end of wide breadth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5619903A true JPS5619903A (en) | 1981-02-25 |
Family
ID=14151474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9594879A Pending JPS5619903A (en) | 1979-07-27 | 1979-07-27 | Slab with end of wide breadth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5619903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203304A (en) * | 1984-03-29 | 1985-10-14 | Kawasaki Steel Corp | Method for rolling hot slab in its width direction |
-
1979
- 1979-07-27 JP JP9594879A patent/JPS5619903A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60203304A (en) * | 1984-03-29 | 1985-10-14 | Kawasaki Steel Corp | Method for rolling hot slab in its width direction |
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