JPS54123553A - Rolling method for steel ingot - Google Patents
Rolling method for steel ingotInfo
- Publication number
- JPS54123553A JPS54123553A JP3189278A JP3189278A JPS54123553A JP S54123553 A JPS54123553 A JP S54123553A JP 3189278 A JP3189278 A JP 3189278A JP 3189278 A JP3189278 A JP 3189278A JP S54123553 A JPS54123553 A JP S54123553A
- Authority
- JP
- Japan
- Prior art keywords
- ingot
- pass
- burrs
- carried out
- mill
- 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 title abstract 6
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- 238000012966 insertion method 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To prevent the generation of burrs and overlap, and to improve the yield, by carrying out the taper removing and the deburring, when the steel ingot is rolled. CONSTITUTION:In case of rolling by the reversing type blooming mill, the first pass of rolling reduction is carried out with the steel ingot whose short side planes with small burrs 2 are placed on top and bottom, by inserting this ingot from the bottom side; hereupon, the taper removing is simultaneously performed. The second pass of rolling reduction is carried out by reversely rotating the mill, and by inserting the ingot from the top side; then, the third pass is carried out for the dummy pass by normally rotating the mill; and the fourth pass is carried out for rolling reduction and taper removing by reversely rotating the mill, and by 90 degrees turning the ingot so as to place the long side planes with large burrs 1 on top and bottom, and by inserting the ingot from the top side. The burrs 1 are folded outward of the bottom of ingot, so that the overlap is not generated. Then, the rolling reduction is carried out following to the usual pass schedule, for finishing the billet into the specified size. The generation of overlap due to the burrs is simply prevented only by contriving the insertion method for the ingot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3189278A JPS54123553A (en) | 1978-03-20 | 1978-03-20 | Rolling method for steel ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3189278A JPS54123553A (en) | 1978-03-20 | 1978-03-20 | Rolling method for steel ingot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54123553A true JPS54123553A (en) | 1979-09-25 |
| JPS5743321B2 JPS5743321B2 (en) | 1982-09-14 |
Family
ID=12343665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3189278A Granted JPS54123553A (en) | 1978-03-20 | 1978-03-20 | Rolling method for steel ingot |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54123553A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344309A (en) * | 1978-10-20 | 1982-08-17 | Kawasaki Steel Corporation | Process for preventing growth of fishtails during slabbing |
| WO2020153293A1 (en) * | 2019-01-21 | 2020-07-30 | Ｊｆｅスチール株式会社 | Steel ingot rolling method |
-
1978
- 1978-03-20 JP JP3189278A patent/JPS54123553A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344309A (en) * | 1978-10-20 | 1982-08-17 | Kawasaki Steel Corporation | Process for preventing growth of fishtails during slabbing |
| WO2020153293A1 (en) * | 2019-01-21 | 2020-07-30 | Ｊｆｅスチール株式会社 | Steel ingot rolling method |
| CN113396021A (en) * | 2019-01-21 | 2021-09-14 | 杰富意钢铁株式会社 | Steel ingot rolling method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5743321B2 (en) | 1982-09-14 |
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