WO2013046346A1 - 熱間圧延設備 - Google Patents
熱間圧延設備 Download PDFInfo
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- WO2013046346A1 WO2013046346A1 PCT/JP2011/072142 JP2011072142W WO2013046346A1 WO 2013046346 A1 WO2013046346 A1 WO 2013046346A1 JP 2011072142 W JP2011072142 W JP 2011072142W WO 2013046346 A1 WO2013046346 A1 WO 2013046346A1
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- rolling
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- 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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/463—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 metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/004—Transverse moving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
Definitions
- the present invention relates to a hot rolling facility capable of improving the productivity and quality of a thin plate material with a small capital investment.
- Patent Document 1 discloses a hot rolling facility for rolling.
- the rear part (soaking furnace, multiple rolling mills, coiler in the first rolling line) Etc.) and can improve the productivity of sheet metal with little capital investment.
- a thick slab is rolled to a slab thickness that can be finished and rolled in the first rolling line with a roughing mill, so that a high-quality sheet material according to demand can be obtained. It is done.
- the rolling of the thick slab in the second rolling line is performed by rolling the material heated in the batch-type heating furnace, so the time from the exiting furnace to the rough rolling varies depending on the position in the longitudinal direction of the material, and the first rolling line.
- the stability of the rolling in the first rolling line and the quality of the final product are impaired because the difference occurs in the temperature in the longitudinal direction of the intermediate material transferred to the first rolling line.
- the present invention has been proposed in view of such circumstances, and an object thereof is to provide a hot rolling facility capable of improving the productivity and quality of a thin plate material with a small capital investment.
- the hot rolling equipment according to the present invention for solving the above problems is as follows.
- a slab cast by a continuous casting machine is directly finished and rolled by a plurality of rolling mills, and a slab which is placed in parallel with the first rolling line and heated by a batch heating furnace is roughened.
- a second rolling line that is rolled by a rolling mill, and the intermediate material rolled in the second rolling line is transferred to the first rolling line, and hot rolled to finish rolling to the final product in the first rolling line.
- the second rolling line is provided with a crop shearing device for trimming the leading and trailing ends of the intermediate material rolled by the rough rolling mill.
- the plurality of rolling mills in the first rolling line include an upstream rolling mill and a downstream rolling mill each composed of at least one stand rolling mill, and these upstream rolling mill and downstream rolling mill, A material temperature adjusting device for adjusting the temperature of the slab rolled by the upstream rolling mill is installed on the intermediate table between the two.
- the maximum utilization of the rear part of the continuous casting machine in the first rolling line can be achieved, and the productivity of the thin plate material can be improved with less equipment investment.
- a thick slab can be rolled to a slab thickness that can be finished and rolled in the first rolling line with a roughing mill, so that a high-quality sheet material according to demand can be obtained.
- a crop shearing device that cuts the leading and trailing edges of the intermediate material rolled by the roughing mill on the rolling line, the leading and trailing edge shape defects of the intermediate material rolled by the second rolling line and the temperature drop portion are removed. It can be cut before being transferred to the first rolling line, the stability in the final rolling and winding in the first rolling line is ensured, and the quality and productivity can be prevented from being impaired.
- the plurality of rolling mills in the first rolling line include an upstream rolling mill and a downstream rolling mill each composed of at least one stand rolling mill, and these upstream rolling mill and downstream rolling mill. Since the material temperature adjustment device that adjusts the temperature of the slab rolled by the upstream rolling mill is installed in the intermediate table between the mill, the temperature difference in the longitudinal direction of the intermediate material produced in the second rolling line is In the first rolling line, it is possible to carry out rolling at a more uniform temperature with the material temperature control device, ensuring the stability of the final rolling in the first rolling line, and impairing quality and productivity. Can be prevented.
- FIG. 1 is a schematic side view of a hot rolling facility showing Example 1 of the present invention.
- molten steel is poured from a ladle (not shown) into a tundish and from the tundish to a continuous casting machine 10.
- the molten steel is solidified in the continuous casting machine 10 and becomes a high-temperature thin slab Wa (for example, about 70 to 100 mm).
- the thin slab Wa proceeds to a soaking furnace (continuous casting machine outlet furnace) 11, where the temperature drop of the thin slab Wa is suppressed, and the temperature distribution in the thin slab Wa is made uniform.
- a shear (not shown) for cutting when the slab reaches a desired length is provided.
- the thin slab Wa exiting the soaking furnace 11 is finish-rolled by a plurality of rolling mills (rows) 12 (6 in the illustrated example (6 stands)), and a strip S having a desired thickness (for example, 1 mm to 10 mm). After being rolled to a degree), it is wound up alternately by downcoilers 13 arranged in a plurality (two in the illustrated example) through a cooling device (not shown).
- the continuous rolling machine 10, the soaking furnace 11, a plurality of rolling mills (rows) 12, a downcoiler 13 and the like constitute a first rolling line A.
- a carousel coiler may be used instead of the plurality of down coilers 13.
- a second rolling line B is arranged in parallel with the first rolling line A.
- a thick slab Wb for example, about 200 to 250 mm
- a batch-type heating furnace 20 such as a walking beam furnace
- a desired thickness for example, the first rolling
- Rough rolling is carried out reversibly up to a thickness equivalent to the thickness of the thin slab Wa in the line A).
- the intermediate material (slab) Wc rolled in the second rolling line B is transferred (transversely fed) to the soaking furnace 11 of the first rolling line A by the transfer furnace (transfer) 22 and the first rolling line.
- a plurality of rolling mills (rows) A are finish-rolled to the final product strip S.
- the transfer furnace 22 is also a part of the heating furnace. Further, the transfer furnace 22 may be in a form other than the lateral feed, for example, a rotary type. Further, an edger mill 23 for adjusting the width of the thick slab Wb is installed in the vicinity of the upstream side of the rolling line of the roughing mill 21.
- the second rolling line B is located near the rolling line downstream side of the roughing mill 21 and the front and rear ends of the intermediate material (slab) Wc reversibly rolled by the roughing mill 21.
- a crop shearing device 30 is installed.
- the intermediate material Wc that has been rolled in the second rolling line B and then trimmed at the front and rear ends thereof is transferred to the first rolling line A, and a plurality of the first rolling line B is transferred. Since the rolling mill (row) 12 is finish-rolled to the final product strip S, the rear portion of the continuous casting machine 10 in the first rolling line A (soaking furnace 11, multiple rolling mills (row) 12). In addition, the maximum utilization of the downcoiler 13 and the like can be achieved, and the productivity of the strip S (thin plate material) can be improved with a small capital investment.
- the thick slab Wb can be rolled to a slab thickness (for example, about 70 to 100 mm) that can be finished and rolled in the first rolling line B by the rough rolling mill 21.
- the casting machine 10 can obtain a high-quality strip S (thin plate material) according to demand, for example, by procuring a thick slab of a steel type that is difficult to cast from the outside.
- a crop shearing device that is positioned near the downstream side of the rolling line of the rough rolling mill 21 in the second rolling line B and aligns the front and rear ends of the intermediate material (slab) Wc that has been reversibly rolled by the rough rolling mill 21. Since 30 is installed, before the transfer to the first rolling line A, the leading and trailing end shape defects (fishtail, tongue, etc.) of the intermediate material Wc rolled in the second rolling line B and the temperature drop part of the leading and trailing ends are transferred.
- the planar shape can be made into a rectangular shape by cutting into the first rolling line A, whereby the stability in the final rolling by a plurality of rolling mills (rows) 12 in the first rolling line A and the winding by a plurality of downcoilers 13 is achieved. Is ensured, and quality and productivity can be prevented from being impaired.
- FIG. 2 is a schematic side view of the hot rolling equipment showing Example 2 of the present invention.
- the plurality of rolling mills (rows) 12 of the first rolling line A in the first embodiment is made up of one or more stands (two stands in the illustrated example). 12a and a downstream rolling mill 12b composed of one or more stands (5 stands in the illustrated example), and upstream rolling is performed on an intermediate table between the upstream rolling mill 12a and the downstream rolling mill 12b.
- a material temperature adjusting device 40 for adjusting the temperature of the slab (thin slab Wa or intermediate material Wc) rolled by the machine 12a with cooling water or a heating device is installed.
- Other configurations include a scale removing device 31A for removing the oxide scale on the surface of the slab (thin slab Wa or intermediate material Wc) in order from the upstream side of the rolling line on the entrance side of the upstream rolling mill 12a and a longitudinal as a width changing means. While installing the roll 32, the scale removal apparatus 31B which removes the oxide scale of the surface of the slab (thin slab Wa or intermediate material Wc) temperature-adjusted by the material temperature adjustment apparatus 40 is installed in the entrance side of the downstream rolling mill 12b. Since it is the same as that of Example 1 except installing, the same code
- the temperature difference in the longitudinal direction of the intermediate material Wc produced in the second rolling line B is adjusted in the material temperature in the first rolling line A. Rolling at a more uniform temperature can be performed with the apparatus 40, the stability of the final rolling in the first rolling line A is ensured, and the advantage that the quality and productivity can be prevented from being lost is obtained.
- the rolling of the intermediate material Wc in the second rolling line B rolls the thick slab Wb heated in the batch-type heating furnace 20, so that the time from the furnace to the rough rolling in the rough rolling mill 21 is thick slab.
- the rolling stability and final product quality in the first rolling line A can be improved. There was a problem of losing, but it was solved.
- the thin slab Wa cast in the first rolling line A is heated in the soaking furnace 11, the temperature during rolling in the longitudinal direction is substantially uniform.
- the hot rolling facility according to the present invention can achieve the maximum use of the rear part (soaking furnace 11, multiple rolling mills (rows) 12, downcoiler 13, etc.) behind the continuous casting machine. It is suitable for use in manufacturing equipment.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
連続鋳造機で鋳造されたスラブを直接的に複数台の圧延機で仕上げ圧延する第1の圧延ラインと前記第1の圧延ラインと平行に配置されてバッチ式加熱炉で加熱されたスラブを粗圧延機で圧延する第2の圧延ラインとを備え、前記第2の圧延ラインで圧延した中間素材を第1の圧延ラインに移送して当該第1の圧延ラインで最終製品まで仕上げ圧延する熱間圧延設備において、
前記第2の圧延ラインに、前記粗圧延機で圧延された中間素材の先後端を切り揃えるクロップせん断装置を設置したことを特徴とする。
前記第1の圧延ラインにおける複数台の圧延機は、それぞれ少なくとも1スタンドの圧延機で構成される上流側圧延機と下流側圧延機とからなり、これらの上流側圧延機と下流側圧延機との間の中間テーブルに、前記上流側圧延機で圧延されたスラブの温度を調節する材料温度調節装置を設置したことを特徴とする。
11 均熱炉(連鋳機出側炉)
12 多段の圧延機(列)
12a 上流側の圧延機
12b 下流側の圧延機
13 ダウンコイラ
20 バッチ式加熱炉
21 粗圧延機
22 搬送炉(トランスファー)
23 エッジャーミル
30 クロップせん断装置
31A,31B スケール除去装置
32 縦ロール
40 材料温度調節装置
A 第1の圧延ライン
B 第2の圧延ライン
Wa 薄スラブ
Wb 厚スラブ
Wc 中間素材
S ストリップ
Claims (2)
- 連続鋳造機で鋳造されたスラブを直接的に複数台の圧延機で仕上げ圧延する第1の圧延ラインと前記第1の圧延ラインと平行に配置されてバッチ式加熱炉で加熱されたスラブを粗圧延機で圧延する第2の圧延ラインとを備え、前記第2の圧延ラインで圧延した中間素材を第1の圧延ラインに移送して当該第1の圧延ラインで最終製品まで仕上げ圧延する熱間圧延設備において、
前記第2の圧延ラインに、前記粗圧延機で圧延された中間素材の先後端を切り揃えるクロップせん断装置を設置したことを特徴とする熱間圧延設備。 - 前記第1の圧延ラインにおける複数台の圧延機は、それぞれ少なくとも1スタンドの圧延機で構成される上流側圧延機と下流側圧延機とからなり、これらの上流側圧延機と下流側圧延機との間の中間テーブルに、前記上流側圧延機で圧延されたスラブの温度を調節する材料温度調節装置を設置したことを特徴とする請求項1に記載の熱間圧延設備。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011105560.9T DE112011105560T5 (de) | 2011-09-28 | 2011-09-28 | Warmwalzanlage |
CN201180073678.7A CN103826764B (zh) | 2011-09-28 | 2011-09-28 | 热轧设备 |
PCT/JP2011/072142 WO2013046346A1 (ja) | 2011-09-28 | 2011-09-28 | 熱間圧延設備 |
JP2013535699A JP5817023B2 (ja) | 2011-09-28 | 2011-09-28 | 熱間圧延設備 |
IN552MUN2014 IN2014MN00552A (ja) | 2011-09-28 | 2014-03-27 |
Applications Claiming Priority (1)
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PCT/JP2011/072142 WO2013046346A1 (ja) | 2011-09-28 | 2011-09-28 | 熱間圧延設備 |
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WO2013046346A1 true WO2013046346A1 (ja) | 2013-04-04 |
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PCT/JP2011/072142 WO2013046346A1 (ja) | 2011-09-28 | 2011-09-28 | 熱間圧延設備 |
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JP (1) | JP5817023B2 (ja) |
CN (1) | CN103826764B (ja) |
DE (1) | DE112011105560T5 (ja) |
IN (1) | IN2014MN00552A (ja) |
WO (1) | WO2013046346A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015107483A1 (en) | 2014-01-17 | 2015-07-23 | Danieli & C. Officine Meccaniche S.P.A. | Plant and method for the production of metal products |
US10576520B1 (en) * | 2018-12-06 | 2020-03-03 | Danieli & C. Officine Meccaniche S.P.A. | Apparatus and method for the production of strip |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT523062B1 (de) * | 2020-02-11 | 2021-05-15 | Primetals Technologies Austria GmbH | Produktionsanlage und Verfahren zum Betrieb solch einer Produktionsanlage |
EP4408595A1 (de) * | 2021-10-01 | 2024-08-07 | SMS Group GmbH | Anlage und verfahren zur herstellung von flachwalzprodukten |
Citations (3)
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JPH10277601A (ja) * | 1997-04-10 | 1998-10-20 | Danieli & C Off Mecc Spa | 薄い平らな製品のための圧延方法と関連の圧延ライン |
JP2004066318A (ja) * | 2002-08-08 | 2004-03-04 | Jfe Steel Kk | 熱間圧延ラインの仕上サイドガイド設定方法および装置 |
JP4001617B2 (ja) * | 2004-12-03 | 2007-10-31 | エス・エム・エス・デマーク・アクチエンゲゼルシャフト | ローラーハース炉及び旋回テーブルを備えたcsp連続鋳造設備 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2003238695A1 (en) * | 2002-06-07 | 2004-01-06 | Nippon Steel Corporation | Hot rolling method and apparatus for hot steel sheet |
UA79184C2 (en) * | 2002-12-14 | 2007-05-25 | Sms Demag Ag | Method and installation for hot-rolling strips using reversible steckel rolling frame |
-
2011
- 2011-09-28 CN CN201180073678.7A patent/CN103826764B/zh active Active
- 2011-09-28 WO PCT/JP2011/072142 patent/WO2013046346A1/ja active Application Filing
- 2011-09-28 DE DE112011105560.9T patent/DE112011105560T5/de active Pending
- 2011-09-28 JP JP2013535699A patent/JP5817023B2/ja active Active
-
2014
- 2014-03-27 IN IN552MUN2014 patent/IN2014MN00552A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10277601A (ja) * | 1997-04-10 | 1998-10-20 | Danieli & C Off Mecc Spa | 薄い平らな製品のための圧延方法と関連の圧延ライン |
JP2004066318A (ja) * | 2002-08-08 | 2004-03-04 | Jfe Steel Kk | 熱間圧延ラインの仕上サイドガイド設定方法および装置 |
JP4001617B2 (ja) * | 2004-12-03 | 2007-10-31 | エス・エム・エス・デマーク・アクチエンゲゼルシャフト | ローラーハース炉及び旋回テーブルを備えたcsp連続鋳造設備 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015107483A1 (en) | 2014-01-17 | 2015-07-23 | Danieli & C. Officine Meccaniche S.P.A. | Plant and method for the production of metal products |
CN106132571A (zh) * | 2014-01-17 | 2016-11-16 | 达涅利机械设备股份公司 | 用于生产金属制品的设备和方法 |
EP3094425B1 (en) | 2014-01-17 | 2018-06-20 | Danieli & C. Officine Meccaniche, S.p.A. | Plant and method for the production of metal products |
CN106132571B (zh) * | 2014-01-17 | 2019-03-19 | 达涅利机械设备股份公司 | 用于生产金属制品的设备和方法 |
US10576520B1 (en) * | 2018-12-06 | 2020-03-03 | Danieli & C. Officine Meccaniche S.P.A. | Apparatus and method for the production of strip |
CN113396022A (zh) * | 2018-12-06 | 2021-09-14 | 达涅利机械设备股份公司 | 用于生产带材的设备和方法 |
CN113396022B (zh) * | 2018-12-06 | 2024-03-01 | 达涅利机械设备股份公司 | 用于生产带材的设备和方法 |
Also Published As
Publication number | Publication date |
---|---|
IN2014MN00552A (ja) | 2015-07-03 |
CN103826764B (zh) | 2016-01-20 |
JP5817023B2 (ja) | 2015-11-18 |
DE112011105560T5 (de) | 2014-05-15 |
CN103826764A (zh) | 2014-05-28 |
JPWO2013046346A1 (ja) | 2015-03-26 |
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