WO2014003273A1 - 냉각장치의 에지마스크 제어방법 - Google Patents
냉각장치의 에지마스크 제어방법 Download PDFInfo
- Publication number
- WO2014003273A1 WO2014003273A1 PCT/KR2012/011711 KR2012011711W WO2014003273A1 WO 2014003273 A1 WO2014003273 A1 WO 2014003273A1 KR 2012011711 W KR2012011711 W KR 2012011711W WO 2014003273 A1 WO2014003273 A1 WO 2014003273A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- width direction
- edge mask
- hot rolled
- temperature
- rolled coil
- 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
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Classifications
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
Definitions
- the present invention relates to a method for controlling an edge mask of a cooling device, and more particularly, by adjusting the number and depth of driving of the edge mask according to the widthwise temperature of the hot rolled coil and the feed rate of the hot rolled coil measured at the inlet side of the cooling device.
- General steel manufacturing consists of a steelmaking process to produce molten iron, a steelmaking process to remove impurities from molten iron, a regeneration process to transform liquid iron into a solid, and a rolling process to make iron into steel or wire.
- the slab supplied from the continuous casting machine of the steelmaking process is charged into a heating furnace, reheated to a temperature suitable for rolling (1200 to 1300 ° C), extracted, and then subjected to rolling and thickness rolling through a rough rolling mill.
- the final rolling is carried out to produce a strip having a desired thickness, wound by a winding machine, and rolled into a rolled coil in the form of a roll.
- the present invention is an edge mask control method of a cooling apparatus to have a uniform widthwise temperature distribution by adjusting the number and depth of driving the edge mask according to the width direction temperature of the hot rolled coil measured at the inlet side of the cooling device and the feed speed of the hot rolled coil.
- the purpose is to provide.
- a method for controlling an edge mask of a cooling apparatus including: receiving, by a controller, an input side width direction temperature of a hot rolled coil measured at an entrance of a cooling apparatus; Receiving, by the controller, information on the hot rolled coil and the feed rate from the upper controller; Adjusting the edge mask pattern by changing the number and depth of driving of the edge mask so that the width direction temperature is uniform while calculating the width direction temperature based on the edge mask pattern and the feed rate set according to the information on the hot rolled coil; And driving the edge mask according to the edge mask pattern when the calculated width direction temperature is uniform.
- the information on the hot rolled coil in the present invention is characterized by including the steel grade, width and thickness of the hot rolled coil.
- the width direction temperature is characterized by using the two-dimensional finite difference method for the thickness direction and the width direction.
- the width direction temperature is characterized by calculating the entrance width direction temperature as the initial temperature.
- control unit receives the exit width direction temperature of the hot rolled coil measured at the exit side of the cooling device; And adjusting and driving an edge mask of the final bank so that the width direction temperature is uniform based on the exit width direction temperature.
- the hot rolled coil is controlled by controlling the number and depth of the edge mask according to the width direction temperature of the hot rolled coil measured at the inlet side of the cooling apparatus and the feed rate of the hot rolled coil to control the edge mask to have a uniform widthwise temperature distribution. It is possible to control the width direction of the coil, to produce a hot rolled coil of uniform material, and to produce a hot rolled coil of wave-free material.
- the present invention compensates for the error in the width direction calculated by adjusting the edge mask of the final bank based on the width direction temperature of the hot rolled coil measured at the exit side of the cooling device to obtain a hot rolled coil having a uniform width in the temperature distribution To produce.
- FIG. 1 is a block diagram showing an edge mask control apparatus of a cooling apparatus according to an embodiment of the present invention.
- FIG 2 and 3 are views for explaining the edge masking state of the cooling apparatus according to an embodiment of the present invention.
- FIG. 4 is a flowchart illustrating an edge mask control method of a cooling apparatus according to an embodiment of the present invention.
- FIG. 5 is a graph for explaining a driving state of the edge mask according to the feed rate of the hot rolled coil in the edge mask control method of the cooling apparatus according to an embodiment of the present invention.
- FIG. 1 is a block diagram showing an edge mask control apparatus of the cooling apparatus according to an embodiment of the present invention
- Figures 2 and 3 are edge masking by the edge mask control apparatus of the cooling apparatus according to an embodiment of the present invention. It is a figure for demonstrating a state.
- an edge mask control apparatus of a cooling apparatus includes an entrance temperature measuring device 20, an exit temperature measuring device 30, a controller 40, and a mask driver 50. And a control device 10.
- the entrance temperature measuring device 20 is installed at the entrance side of the cooling device 45 to measure the entrance side width direction temperature of the hot rolled coil 60 rolled by the finishing mill 15 and input to the cooling device 45.
- the exit temperature measuring device 30 is installed at the exit side of the cooling device 45 and measures the exit width direction temperature of the hot rolled coil 60 wound around the winding machine 65 after cooling is performed in the cooling device 45.
- the mask driver 50 moves the edge mask 55 in the width direction of the hot rolled coil 60 to adjust the amount of cooling water in the edge portion of the hot rolled coil 60 under the cooling header 70 shown in FIG. 3. To prevent overcooling of the edge portion of the hot rolled coil (60).
- the controller 40 receives the input width direction temperature of the hot rolled coil 60 input from the temperature measuring instrument 20 and information about the hot rolled coil 60 input from the upper controller 10 and the feed rate. Width direction temperature after the edge mask pattern is adjusted by changing the number and depth of driving of the edge mask 55 so that the width direction temperature becomes uniform based on the edge mask pattern and the feed speed set according to the information on the coil 60. Calculate
- the width direction temperature is calculated by making the entrance side width direction temperature into an initial temperature.
- the mask driver 50 is operated according to the adjusted edge mask pattern.
- control unit 40 receives the exit width direction temperature of the hot rolled coil 60 measured at the exit of the cooling device 45 from the exit temperature measuring device 30 to adjust the edge mask 55 of the final bank 75. This compensates for the error in the widthwise temperature distribution by the calculation to have a uniform widthwise temperature distribution.
- FIG. 4 is a flowchart illustrating an edge mask control method of a cooling apparatus according to an embodiment of the present invention.
- the controller 40 first measures the temperature of the mouth side width direction of the hot rolled coil 60 measured at the entrance side of the cooling apparatus 45 from the entrance temperature measuring instrument 20. It receives an input (S10).
- control unit 40 receives the information and the feed rate for the hot rolled coil 60 from the upper control device 10 (S20).
- the controller 40 calculates the widthwise temperature at the time of cooling according to the edge mask pattern set according to the information on the hot rolled coil 60 (S30). At this time, the width direction temperature is calculated by making the entrance side width direction temperature into an initial temperature.
- width and thickness of the hot rolled coil 60 is set to set the edge mask pattern to set the width direction temperature.
- the width direction temperature is calculated using a two-dimensional finite difference method (FDM) for the thickness direction and the width direction.
- FDM finite difference method
- the edge mask 55 is driven through the mask driver 50 according to the edge mask pattern (S40) (S60).
- the edge mask pattern is adjusted to have a uniform width direction temperature by changing the number and depth of driving of the edge mask 55 according to the feed speed. (S50).
- the edge mask 55 is driven according to the edge mask pattern, and when the width direction temperature is not uniform, the number and depth of driving of the edge mask 55 are changed and uniform.
- the edge mask pattern is adjusted to have one widthwise temperature.
- the exit width direction temperature of the hot rolled coil 60 measured at the exit of the cooling device 45 is received from the exit temperature measuring device 30 (S70).
- FIG. 5 is a graph for explaining a driving state of the edge mask according to the feed rate of the hot rolled coil in the edge mask control method of the cooling apparatus according to an embodiment of the present invention.
- the number of driving of the edge mask 55 is also changed according to the feed rate of the hot rolled coil 60 together with the amount of cooling water, and thus the center temperature of the exit side and the edge temperature are maintained the same. Can be seen.
- the edge mask 55 according to the width direction temperature of the hot rolled coil 60 and the feed rate of the hot rolled coil 60 measured at the inlet side of the cooling device 45
- the width direction of the hot-rolled coil 60 can be controlled to have a uniform width direction temperature distribution it is possible to control the width direction of the hot-rolled coil 60, can produce a hot-rolled coil 60 of a uniform material, wave-free It is possible to produce a hot rolled coil 60 of the material.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Control Of Metal Rolling (AREA)
Description
Claims (5)
- 제어부가 냉각장치의 입측에서 측정된 열연코일의 입측 폭방향 온도를 입력받는 단계;상기 제어부가 상위제어장치로부터 상기 열연코일에 대한 정보와 이송속도를 입력받는 단계;상기 열연코일에 대한 정보에 따라 설정한 에지마스크 패턴과 상기 이송속도를 기반으로 폭방향 온도를 계산하면서 상기 폭방향 온도가 균일하도록 에지마스크의 구동개수와 깊이를 변경하여 상기 에지마스크 패턴을 조정하는 단계; 및계산된 상기 폭방향 온도가 균일할 경우 상기 에지마스크 패턴에 따라 상기 에지마스크를 구동하는 단계;를 포함하는 것을 특징으로 하는 냉각장치의 에지마스크 제어방법.
- 제 1항에 있어서, 상기 열연코일에 대한 정보는 열연코일의 강종, 폭 및 두께를 포함하는 것을 특징으로 하는 냉각장치의 에지마스크 제어방법.
- 제 1항에 있어서, 상기 폭방향 온도는 두께방향과 폭방향에 대한 2차원 유한차분법을 이용하여 계산하는 것을 특징으로 하는 냉각장치의 에지마스크 제어방법.
- 제 1항에 있어서, 상기 폭방향 온도는 입측 폭방향 온도를 초기 온도로 하여 계산하는 것을 특징으로 하는 냉각장치의 에지마스크 제어방법.
- 제 1항에 있어서, 상기 제어부가 상기 냉각장치의 출측에서 측정된 상기 열연코일의 출측 폭방향 온도를 입력받는 단계; 및상기 출측 폭방향 온도를 기반으로 상기 폭방향 온도가 균일하도록 최종 뱅크의 상기 에지마스크를 조정하여 구동하는 단계를 더 포함하는 것을 특징으로 하는 냉각장치의 에지마스크 제어방법.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201211006611 DE112012006611T5 (de) | 2012-06-28 | 2012-12-28 | Verfahren zum Steuern von Randmaske von Kühleinrichtung |
| JP2015514887A JP5932143B2 (ja) | 2012-06-28 | 2012-12-28 | 冷却装置のエッジマスク制御方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0069653 | 2012-06-28 | ||
| KR1020120069653A KR101498890B1 (ko) | 2012-06-28 | 2012-06-28 | 냉각장치의 에지마스크 제어방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014003273A1 true WO2014003273A1 (ko) | 2014-01-03 |
Family
ID=49783381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2012/011711 Ceased WO2014003273A1 (ko) | 2012-06-28 | 2012-12-28 | 냉각장치의 에지마스크 제어방법 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5932143B2 (ko) |
| KR (1) | KR101498890B1 (ko) |
| DE (1) | DE112012006611T5 (ko) |
| WO (1) | WO2014003273A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598185A (zh) * | 2016-01-14 | 2016-05-25 | 北京科技大学 | 一种卷取温度偏差引起的高强钢不对称收缩控制方法 |
| CN110860565A (zh) * | 2019-10-13 | 2020-03-06 | 河钢股份有限公司 | 一种精确实现带钢边部对称遮挡的方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7515002B2 (ja) * | 2021-03-04 | 2024-07-11 | Primetals Technologies Japan株式会社 | エッジマスクの初期位置決定方法及びエッジマスクの初期位置決定装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527750A (ja) * | 1991-07-25 | 1993-02-05 | Hitachi Ltd | 自動伴奏方法 |
| JPH05192708A (ja) * | 1992-01-20 | 1993-08-03 | Nkk Corp | 鋼ストリップの幅方向温度および巻取り温度制御装置 |
| KR950008876Y1 (ko) * | 1993-12-30 | 1995-10-16 | 포항종합제철 주식회사 | 열연 런 아웃 테이블용 냉각수 엣지 마스크 장치 |
| KR20000009074A (ko) * | 1998-07-21 | 2000-02-15 | 이구택 | 가속냉각강판의 폭방향 균일 냉각방법 |
| KR20120065118A (ko) * | 2010-12-10 | 2012-06-20 | 주식회사 포스코 | 냉각대 에지 마스커 제어 방법 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57109516A (en) * | 1980-12-26 | 1982-07-08 | Kawasaki Steel Corp | Method and apparatus for cooling strip in hot rolling mill |
| JPS5890314A (ja) * | 1981-11-24 | 1983-05-30 | Hitachi Ltd | 熱間圧延スプレ−冷却装置 |
| WO2004110662A1 (ja) * | 2003-06-13 | 2004-12-23 | Jfe Steel Corporation | 厚鋼板の制御冷却方法、その制御冷却方法で製造された厚鋼板及びその冷却装置 |
| JP4238260B2 (ja) * | 2006-09-19 | 2009-03-18 | 新日本製鐵株式会社 | 鋼板の冷却方法 |
-
2012
- 2012-06-28 KR KR1020120069653A patent/KR101498890B1/ko active Active
- 2012-12-28 JP JP2015514887A patent/JP5932143B2/ja not_active Expired - Fee Related
- 2012-12-28 DE DE201211006611 patent/DE112012006611T5/de active Pending
- 2012-12-28 WO PCT/KR2012/011711 patent/WO2014003273A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0527750A (ja) * | 1991-07-25 | 1993-02-05 | Hitachi Ltd | 自動伴奏方法 |
| JPH05192708A (ja) * | 1992-01-20 | 1993-08-03 | Nkk Corp | 鋼ストリップの幅方向温度および巻取り温度制御装置 |
| KR950008876Y1 (ko) * | 1993-12-30 | 1995-10-16 | 포항종합제철 주식회사 | 열연 런 아웃 테이블용 냉각수 엣지 마스크 장치 |
| KR20000009074A (ko) * | 1998-07-21 | 2000-02-15 | 이구택 | 가속냉각강판의 폭방향 균일 냉각방법 |
| KR20120065118A (ko) * | 2010-12-10 | 2012-06-20 | 주식회사 포스코 | 냉각대 에지 마스커 제어 방법 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598185A (zh) * | 2016-01-14 | 2016-05-25 | 北京科技大学 | 一种卷取温度偏差引起的高强钢不对称收缩控制方法 |
| CN105598185B (zh) * | 2016-01-14 | 2018-06-26 | 北京科技大学 | 一种卷取温度偏差引起的高强钢不对称收缩控制方法 |
| CN110860565A (zh) * | 2019-10-13 | 2020-03-06 | 河钢股份有限公司 | 一种精确实现带钢边部对称遮挡的方法 |
| CN110860565B (zh) * | 2019-10-13 | 2022-06-07 | 河钢股份有限公司 | 一种精确实现带钢边部对称遮挡的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5932143B2 (ja) | 2016-06-08 |
| KR101498890B1 (ko) | 2015-03-05 |
| KR20140002889A (ko) | 2014-01-09 |
| DE112012006611T5 (de) | 2015-03-26 |
| JP2015521111A (ja) | 2015-07-27 |
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