JPS57146407A - Rolling method for thick plate - Google Patents
Rolling method for thick plateInfo
- Publication number
- JPS57146407A JPS57146407A JP3228281A JP3228281A JPS57146407A JP S57146407 A JPS57146407 A JP S57146407A JP 3228281 A JP3228281 A JP 3228281A JP 3228281 A JP3228281 A JP 3228281A JP S57146407 A JPS57146407 A JP S57146407A
- Authority
- JP
- Japan
- Prior art keywords
- pass
- rolling
- plate
- biting
- failed
- 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 8
- 238000000034 method Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 239000010959 steel Substances 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
- B21B1/06—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 in a non-continuous process, e.g. triplet mill, reversing mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/06—Threading
- B21B2273/08—Threading-in or before threading-in
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
PURPOSE:To relieve a shock due to biting as compared with that of a conventional rolling method and to reduce the excess thickness at the top and bottom parts of a plate, by keeping the roll gap narrower than that of other part and rolling said plate while a part of a rolling material which is failed in biting passes through rolls. CONSTITUTION:A thick plate is rolled by the following procedure while controlling the temp. of a rolling material by cooling it forcibly on the way of rolling. In this case, the side shapes of a steel plate 1 at the exits of the ith pass and the (i+1)th pass between the initial temp. controlling pass and 2-3 passes before the final pass in said rolling step are shown in the figure. That is, reverse rolling is generally used for a thick plate, and then the part which is failed in biting at the ith pass becomes the bitting part at the (i+1)th pass. In this invention, the thickness of the part 2 which is failed in biting is made thin by setting the roll gap at the time when the part 2 of the plate 1 at the ith pass passes through the roll 3, narrower than that of the part through which other parts have passed already.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3228281A JPS5948681B2 (en) | 1981-03-06 | 1981-03-06 | How to roll thick plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3228281A JPS5948681B2 (en) | 1981-03-06 | 1981-03-06 | How to roll thick plates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57146407A true JPS57146407A (en) | 1982-09-09 |
| JPS5948681B2 JPS5948681B2 (en) | 1984-11-28 |
Family
ID=12354612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3228281A Expired JPS5948681B2 (en) | 1981-03-06 | 1981-03-06 | How to roll thick plates |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5948681B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0841536A (en) * | 1994-07-29 | 1996-02-13 | Kawasaki Steel Corp | Production of high tensile strength steel plate small in nonuniformity of hardness in plate thickness direction and excellent in dwtt property |
| JP2009202185A (en) * | 2008-02-27 | 2009-09-10 | Jfe Steel Corp | Rolling method using reversible rolling mill, and manufacturing method for hot-rolled steel strip |
| CN106890852A (en) * | 2015-12-21 | 2017-06-27 | 宝山钢铁股份有限公司 | Reduce the method that finishing mill stings steel impact |
-
1981
- 1981-03-06 JP JP3228281A patent/JPS5948681B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0841536A (en) * | 1994-07-29 | 1996-02-13 | Kawasaki Steel Corp | Production of high tensile strength steel plate small in nonuniformity of hardness in plate thickness direction and excellent in dwtt property |
| JP2009202185A (en) * | 2008-02-27 | 2009-09-10 | Jfe Steel Corp | Rolling method using reversible rolling mill, and manufacturing method for hot-rolled steel strip |
| CN106890852A (en) * | 2015-12-21 | 2017-06-27 | 宝山钢铁股份有限公司 | Reduce the method that finishing mill stings steel impact |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5948681B2 (en) | 1984-11-28 |
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