WO2007129373A1 - 双ロール鋳造機 - Google Patents
双ロール鋳造機 Download PDFInfo
- Publication number
- WO2007129373A1 WO2007129373A1 PCT/JP2006/308708 JP2006308708W WO2007129373A1 WO 2007129373 A1 WO2007129373 A1 WO 2007129373A1 JP 2006308708 W JP2006308708 W JP 2006308708W WO 2007129373 A1 WO2007129373 A1 WO 2007129373A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- steel strip
- cooling
- mark
- twin
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/168—Controlling or regulating processes or operations for adjusting the mould size or mould taper
Definitions
- the present invention relates to a twin roll forging machine.
- FIG. 1 shows an example of a twin-roll forging machine, which includes a pair of cooling holes 1 arranged horizontally and a pair of side weirs 2 attached to the cooling roll 1.
- the cooling roll 1 is configured such that cooling water flows through the roll 1 and the roll gap G can be adjusted in accordance with the thickness of the steel strip 3 to be produced.
- each cooling roll 1 The rotation direction and speed of each cooling roll 1 are set so that the outer peripheral surface of each cooling roll 1 moves from the upper side toward the roll gap G at a constant speed.
- One side weir 2 is in surface contact with one end of each cooling roll 1, and the other side weir 2 is in surface contact with the other end of each cooling roll 1.
- the molten metal supply nozzle 4 is arranged so as to be located immediately above the roll gap G.
- the molten metal supply nozzle 4 force is surrounded by the cooling roll 1 and the side weir 2 on all sides.
- a cooling roll incorporating a taper piston for correcting the roll crown is used to measure the plate thickness of the steel strip sent out by the roll gap force.
- a twin-roll forging machine has also been proposed that corrects the roll crown based on the measured value (see, for example, Patent Document 1).
- Patent Document 1 Japanese Patent Application Laid-Open No. 60-27458
- Patent Document 1 the roll gap and the plate thickness measurement point are separated from each other. Therefore, if uneven thermal deformation occurs in the circumferential direction of the cooling roll, the current roll gap shape is not reflected in the steel strip thickness measurement value. It becomes difficult to equalize the thickness distribution.
- the present invention has been made in view of the above-described circumstances, and an object thereof is to provide a double-hole forging machine capable of appropriately estimating the roll gap.
- the present invention measures a thickness distribution in the plate width direction of the steel strip and a pair of cooling rolls that solidify the molten steel on the outer peripheral surface and feed the steel strip from the roll gap.
- the structure includes a non-contact sensor, marking means for marking the steel strip every time the cooling roll rotates, and mark detection means for detecting the mark attached to the steel strip.
- the roll per rotation of the cooling roll based on the thickness distribution in the plate width direction of the steel strip continuously obtained by the non-contact sensor and the passage of the mark on the steel strip detected by the mark detection means. Estimate gap variation.
- a pair of cooling rolls that solidify the molten steel on the outer peripheral surface and feed the steel strip with a roll gap force, and a non-contact type sensor that measures a distance distribution in the roll axis direction to the outer peripheral surface of each cooling roll. It is set as the structure provided with.
- the fluctuation of the roll gap per one rotation of the cooling roll is estimated.
- a non-contact sensor for detecting the thickness distribution in the plate width direction of the steel strip, or the distance distribution in the roll axis direction to the outer peripheral surface of the cooling roll. Any of those equipped with a non-contact type sensor that can detect the fluctuation can properly estimate the fluctuation of the roll gap per rotation of the cooling roll, and if the roll crown is corrected based on this, the phase of both rolls can be adjusted. It is possible to achieve an excellent effect that it is possible to achieve equalization of the thickness distribution in the thickness direction of the steel strip.
- FIG. 1 is a conceptual diagram showing an example of a conventional twin roll forging machine.
- FIG. 2 is a conceptual diagram showing a first embodiment of the twin roll forging machine of the present invention.
- FIG. 3 is a conceptual diagram showing a second embodiment of the twin roll forging machine of the present invention.
- FIG. 2 shows a first embodiment of the twin roll forging machine of the present invention, a pair of cooling rolls 1 for forging the steel strip 3, and a non-contact type for measuring the thickness distribution of the steel strip 3 in the plate width direction.
- Sensor 6 for attaching a mark 7 to the steel strip 3 every time the cooling roll 1 rotates; Mark detecting means 9 disposed in the vicinity of the non-contact sensor 6; Roll gap estimating means Has ten.
- the cooling roll 1 is accompanied by a side dam and a molten metal supply nozzle (not shown), and a molten metal pool 5 made of molten steel is formed between the cooling rolls 1.
- a horizontal pressing force F is applied to the roll neck portion by a roll shape correcting means (not shown) such as a cylinder. It is.
- the steel strip 3 fed downward from the roll gap G of the cooling roll 1 is guided laterally by a table roll (not shown), and passes through a pinch roll 11 to a horizontal rolling machine (not shown). ).
- the non-contact sensor 6 has three or more thickness measuring instruments arranged in the width direction of the steel strip 3. It is arranged upstream of the pinch roll 11 in the moving direction of the steel strip 3.
- the marking means 8 is concave or convex provided in the vicinity of the outer peripheral surface roll edge portion of one cooling roll 1, and each time the cooling roll 1 rotates, the marking means 8 is concave.
- a convex mark 7 is attached to the steel strip 3 to which the roll gap G force is also sent, and when the marking means 8 is convex, a concave mark 7 is applied to the steel strip 3 to which the roll gap G force is sent. Is attached.
- the mark detection means 9 has a method of detecting the mark 7 attached to the steel strip 3 as a variation in the distance to the reference position force steel strip 3 surface, or the shape of the steel strip 3 surface changes significantly. Use a system that detects the affected area by image processing.
- the roll gap estimating means 10 uses the thickness distribution information 12 in the plate width direction of the steel strip 3 obtained by the non-contact sensor 6 and the mark passage information 13 transmitted from the mark detecting means 9 to determine the cooling roll 1
- the fluctuation of the roll gap G per rotation is based on the fluctuation of the thickness distribution in the plate width direction of the steel strip 3 between the time when the passage of the mark 7 is confirmed and the next passage of the mark 7 is confirmed. And stored as data.
- the roll gap estimation means 10 Since the data of the roll gap estimation means 10 is also the fluctuation of the thickness distribution of the steel strip 3 in the longitudinal direction, the roll gap G is not changed due to the rotation of the cooling roll 1 based on the data. If the cooling roll 1 is elastically deformed by the shape correcting means, the thickness portions in the longitudinal direction and the plate width direction of the steel strip 3 to be sent out thereafter can be made uniform.
- the roll shape correction means may be a taper piston type rather than just a roll bending type, and the roll crown may be corrected in small increments while the cooling roll 1 rotates. .
- FIG. 3 shows a second embodiment of the twin roll forging machine according to the present invention, in which the steel strip 3 is forged. Equipped with a pair of cooling rolls 1, a reference position force, a non-contact sensor 14 that measures the distance distribution in the roll axis direction to the outer peripheral surface of each cooling roll 1, and a roll gap estimation means 15 in the figure, identical to FIG.
- symbol represents the same thing.
- the non-contact sensor 14 has three or more distance measuring devices arranged in parallel to the axis of the cooling roll 1, and is opposite to the roll gap G on the outer peripheral surface of each cooling roll 1 by 180 °. It is arranged to face the side part.
- the roll gap estimating means 15 is based on the distance distribution information 16 in the roll axis direction from the reference position (position where the measuring instrument is provided) obtained by the non-contact sensor 14 to the outer peripheral surface of the cooling roll 1. Then, the fluctuation of the roll gap G per rotation of the cooling roll 1 is calculated based on the fluctuation of the distance distribution in the roll axis direction from the reference position to the outer peripheral surface of each cooling roll 1 and is fe as data. .
- the rolls are adjusted so that the fluctuation of the roll gap G accompanying the rotation of the cooling roll 1 is eliminated based on the data. If the cooling roll 1 is elastically deformed by the shape correcting means, the thickness portions in the longitudinal direction and the plate width direction of the steel strip 3 to be sent out thereafter can be made uniform.
- the roll shape correcting means may be a taper piston type that is not limited to the roll bending type, and the roll crown may be corrected in small increments while the cooling roll 1 rotates. .
- twin roll forging machine of the present invention is not limited to the above-described embodiments, and it is needless to say that changes can be made without departing from the scope of the present invention.
- the twin roll forging machine of the present invention can be applied to the production of steel strips having various component ratios.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006800543849A CN101426604B (zh) | 2006-04-26 | 2006-04-26 | 双辊铸造机 |
| BRPI0621612-9A BRPI0621612A2 (pt) | 2006-04-26 | 2006-04-26 | fundidor de rolo duplo |
| US12/295,332 US20090294089A1 (en) | 2006-04-26 | 2006-04-26 | Twin-roll casting machine |
| PCT/JP2006/308708 WO2007129373A1 (ja) | 2006-04-26 | 2006-04-26 | 双ロール鋳造機 |
| EP06745686A EP2011590A4 (en) | 2006-04-26 | 2006-04-26 | TWO ROLL CASTING MACHINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/308708 WO2007129373A1 (ja) | 2006-04-26 | 2006-04-26 | 双ロール鋳造機 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007129373A1 true WO2007129373A1 (ja) | 2007-11-15 |
Family
ID=38667494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/308708 Ceased WO2007129373A1 (ja) | 2006-04-26 | 2006-04-26 | 双ロール鋳造機 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090294089A1 (ja) |
| EP (1) | EP2011590A4 (ja) |
| CN (1) | CN101426604B (ja) |
| BR (1) | BRPI0621612A2 (ja) |
| WO (1) | WO2007129373A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8607847B2 (en) * | 2008-08-05 | 2013-12-17 | Nucor Corporation | Method for casting metal strip with dynamic crown control |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112020005525B1 (pt) * | 2017-09-22 | 2022-08-09 | Nucor Corporation | Controle de aprendizagem iterativo para distúrbios periódicos em fundição de tira de rolo duplo com atraso de medição |
| TW202023709A (zh) * | 2018-10-22 | 2020-07-01 | 日商日本製鐵股份有限公司 | 鑄片的鑄造方法 |
| CN111872333B (zh) * | 2020-06-30 | 2021-12-21 | 太原理工大学 | 平面流铸冷却辊热变形监测装置与轴向热凸度控制方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6027458A (ja) * | 1983-07-22 | 1985-02-12 | Ishikawajima Harima Heavy Ind Co Ltd | 連続鋳造機 |
| JPH06134554A (ja) * | 1992-10-27 | 1994-05-17 | Nippon Steel Corp | 薄板連続鋳造機における鋳片位置検出方法及び鋳片位置検出機能を備えた薄板連続鋳造機 |
| JP2002066704A (ja) * | 2000-08-22 | 2002-03-05 | Nkk Corp | 連続鋳造鋳片の凝固完了位置検出方法及び制御方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035221B2 (ja) * | 1982-10-12 | 1985-08-13 | 石川島播磨重工業株式会社 | 金属帯板連続鋳造方法及びその装置 |
| JPS6083746A (ja) * | 1983-10-12 | 1985-05-13 | Ishikawajima Harima Heavy Ind Co Ltd | 回転鋳造装置 |
| JPH05285607A (ja) * | 1992-04-14 | 1993-11-02 | Mitsubishi Heavy Ind Ltd | 双ロール式連続鋳造機のロール形状制御装置 |
| JPH0740008A (ja) * | 1993-07-27 | 1995-02-10 | Nippon Steel Corp | 連続鋳造による薄肉鋳片の板厚測定方法 |
| JPH0788599A (ja) * | 1993-09-27 | 1995-04-04 | Nippon Steel Corp | 双ロール式連続鋳造機の鋳造ロールの形状制御方法 |
| FR2732627B1 (fr) * | 1995-04-07 | 1997-04-30 | Usinor Sacilor | Procede et dispositif de reglage du bombe des cylindres d'une installation de coulee de bandes metalliques |
-
2006
- 2006-04-26 WO PCT/JP2006/308708 patent/WO2007129373A1/ja not_active Ceased
- 2006-04-26 CN CN2006800543849A patent/CN101426604B/zh not_active Expired - Fee Related
- 2006-04-26 EP EP06745686A patent/EP2011590A4/en not_active Withdrawn
- 2006-04-26 US US12/295,332 patent/US20090294089A1/en not_active Abandoned
- 2006-04-26 BR BRPI0621612-9A patent/BRPI0621612A2/pt not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6027458A (ja) * | 1983-07-22 | 1985-02-12 | Ishikawajima Harima Heavy Ind Co Ltd | 連続鋳造機 |
| JPH06134554A (ja) * | 1992-10-27 | 1994-05-17 | Nippon Steel Corp | 薄板連続鋳造機における鋳片位置検出方法及び鋳片位置検出機能を備えた薄板連続鋳造機 |
| JP2002066704A (ja) * | 2000-08-22 | 2002-03-05 | Nkk Corp | 連続鋳造鋳片の凝固完了位置検出方法及び制御方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2011590A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8607847B2 (en) * | 2008-08-05 | 2013-12-17 | Nucor Corporation | Method for casting metal strip with dynamic crown control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101426604B (zh) | 2012-07-11 |
| BRPI0621612A2 (pt) | 2011-12-13 |
| EP2011590A4 (en) | 2009-11-11 |
| EP2011590A1 (en) | 2009-01-07 |
| CN101426604A (zh) | 2009-05-06 |
| US20090294089A1 (en) | 2009-12-03 |
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