JP2014188543A - 厚鋼板の製造方法および製造設備 - Google Patents
厚鋼板の製造方法および製造設備 Download PDFInfo
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- JP2014188543A JP2014188543A JP2013065341A JP2013065341A JP2014188543A JP 2014188543 A JP2014188543 A JP 2014188543A JP 2013065341 A JP2013065341 A JP 2013065341A JP 2013065341 A JP2013065341 A JP 2013065341A JP 2014188543 A JP2014188543 A JP 2014188543A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 218
- 239000010959 steel Substances 0.000 title claims abstract description 218
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 147
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000000498 cooling water Substances 0.000 claims abstract description 72
- 238000012937 correction Methods 0.000 claims abstract description 11
- 238000005098 hot rolling Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 42
- 239000007924 injection Substances 0.000 claims description 42
- 230000009466 transformation Effects 0.000 claims description 22
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000001131 transforming effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 13
- 230000001133 acceleration Effects 0.000 abstract description 11
- 238000005192 partition Methods 0.000 description 38
- 238000000034 method Methods 0.000 description 23
- 238000005096 rolling process Methods 0.000 description 22
- 239000007921 spray Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 229910001566 austenite Inorganic materials 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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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
- B21B45/0203—Cooling
-
- 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
- B21B45/04—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 de-scaling, e.g. by brushing
- B21B45/08—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 de-scaling, e.g. by brushing hydraulically
-
- 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
- B21B2001/225—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 by hot-rolling
-
- 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
- B21B2015/0071—Levelling the rolled 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
- B21B2045/0212—Cooling devices, e.g. using gaseous coolants using gaseous coolants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/20—Temperature
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
【解決手段】熱間圧延工程、形状矯正工程および加速冷却工程の順序で厚鋼板を製造する方法において、前記形状矯正工程と前記加速冷却工程との間に、厚鋼板表面温度をAr3変態点未満に空冷することにより、あるいは、厚鋼板の上下面に冷却水を水量密度0.3〜2.2m3/m2minで供給して水冷することにより、厚鋼板表面を変態させる温度調整工程、および、前記温度調整工程の後でかつ前記加速冷却工程の前に厚鋼板の表面にエネルギー密度が0.05J/mm2以上の高圧水を噴射するデスケーリング工程を有する厚鋼板の製造方法。
【選択図】図1
Description
[1]熱間圧延工程、形状矯正工程および加速冷却工程の順序で厚鋼板を製造する方法において、前記形状矯正工程と前記加速冷却工程との間に、厚鋼板表面温度をAr3変態点未満に空冷することにより、あるいは、厚鋼板の上下面に冷却水を水量密度0.3〜2.2m3/m2minで供給して水冷することにより、厚鋼板表面を変態させる温度調整工程、および、前記温度調整工程の後でかつ前記加速冷却工程の前に厚鋼板の表面にエネルギー密度が0.05J/mm2以上の高圧水を噴射するデスケーリング工程を有することを特徴とする厚鋼板の製造方法。
[2]前記デスケーリング工程において、前記高圧水の噴射圧力を10MPa以上とすることを特徴とする[1]に記載の厚鋼板の製造方法。
[3]熱間圧延装置、形状矯正装置、温度調整装置、デスケーリング装置および加速冷却装置をこの順序で搬送方向上流側から配置し、前記温度調整装置では、厚鋼板表面温度をAr3変態点未満に空冷し、あるいは、厚鋼板の上下面に冷却水を水量密度0.3〜2.2m3/m2minで供給することにより水冷し、厚鋼板表面を変態させるとともに、前記デスケーリング装置では、厚鋼板の表面にエネルギー密度が0.05J/mm2以上の高圧水を噴射することを特徴とする厚鋼板の製造設備。
[4]前記デスケーリング装置において、前記高圧水の噴射圧力を10MPa以上とすることを特徴とする[3]に記載の厚鋼板の製造設備。
Ar3=910−310C−80Mn−20Cu−15Cr−55Ni−80Mo…(*)
ただし、元素記号は各元素の鋼中含有量(mass%)を示す。
E=Q/(d×W)×ρv2/2×t…(1)
ただし、Q:デスケーリング水の噴射流量[m3/s]、d:フラットノズルのスプレー噴射厚み[mm]、W:フラットノズルのスプレー噴射幅[mm]、流体密度ρ[kg/m3]、厚鋼板衝突時の流体速度v[m/s]、衝突時間t[s](t=d/1000/V、搬送速度V[m/s])である。
2 デスケーリング装置
3 圧延機
4 形状矯正装置
5 加速冷却装置
6 温度調整装置
7 デスケーリング装置
10 厚鋼板
11 上ヘッダ
12 下ヘッダ
13 上冷却水噴射ノズル(円管ノズル)
14 下冷却水噴射ノズル(円管ノズル)
15 隔壁
16 給水口
17 排水口
18 噴射冷却水
19 排出水
20 水切ロール
21 水切ロール
Claims (4)
- 熱間圧延工程、形状矯正工程および加速冷却工程の順序で厚鋼板を製造する方法において、前記形状矯正工程と前記加速冷却工程との間に、厚鋼板表面温度をAr3変態点未満に空冷することにより、あるいは、厚鋼板の上下面に冷却水を水量密度0.3〜2.2m3/m2minで供給して水冷することにより、厚鋼板表面を変態させる温度調整工程、および、前記温度調整工程の後でかつ前記加速冷却工程の前に厚鋼板の表面にエネルギー密度が0.05J/mm2以上の高圧水を噴射するデスケーリング工程を有することを特徴とする厚鋼板の製造方法。
- 前記デスケーリング工程において、前記高圧水の噴射圧力を10MPa以上とすることを特徴とする請求項1に記載の厚鋼板の製造方法。
- 熱間圧延装置、形状矯正装置、温度調整装置、デスケーリング装置および加速冷却装置をこの順序で搬送方向上流側から配置し、前記温度調整装置では、厚鋼板表面温度をAr3変態点未満に空冷し、あるいは、厚鋼板の上下面に冷却水を水量密度0.3〜2.2m3/m2minで供給することにより水冷し、厚鋼板表面を変態させるとともに、前記デスケーリング装置では、厚鋼板の表面にエネルギー密度が0.05J/mm2以上の高圧水を噴射することを特徴とする厚鋼板の製造設備。
- 前記デスケーリング装置において、前記高圧水の噴射圧力を10MPa以上とすることを特徴とする請求項3に記載の厚鋼板の製造設備。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013065341A JP5720714B2 (ja) | 2013-03-27 | 2013-03-27 | 厚鋼板の製造方法および製造設備 |
KR1020157025725A KR101691020B1 (ko) | 2013-03-27 | 2014-03-20 | 후강판의 제조 방법 및 제조 설비 |
PCT/JP2014/001613 WO2014156085A1 (ja) | 2013-03-27 | 2014-03-20 | 厚鋼板の製造方法および製造設備 |
EP14773154.1A EP2979769B1 (en) | 2013-03-27 | 2014-03-20 | Thick steel plate manufacturing method and manufacturing device |
CN201480018326.5A CN105073293B (zh) | 2013-03-27 | 2014-03-20 | 厚钢板的制造方法及制造设备 |
TW103111428A TWI569898B (zh) | 2013-03-27 | 2014-03-27 | Manufacture method and manufacturing equipment of thick steel plate |
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JP2013065341A JP5720714B2 (ja) | 2013-03-27 | 2013-03-27 | 厚鋼板の製造方法および製造設備 |
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JP2014188543A true JP2014188543A (ja) | 2014-10-06 |
JP2014188543A5 JP2014188543A5 (ja) | 2014-11-27 |
JP5720714B2 JP5720714B2 (ja) | 2015-05-20 |
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EP (1) | EP2979769B1 (ja) |
JP (1) | JP5720714B2 (ja) |
KR (1) | KR101691020B1 (ja) |
CN (1) | CN105073293B (ja) |
TW (1) | TWI569898B (ja) |
WO (1) | WO2014156085A1 (ja) |
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JP2017177201A (ja) * | 2016-03-31 | 2017-10-05 | Jfeスチール株式会社 | 鋼板の製造方法および製造設備 |
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KR101940872B1 (ko) * | 2016-12-21 | 2019-01-21 | 주식회사 포스코 | 유정관용 열연강판, 이를 이용한 강관 및 이들의 제조방법 |
CN112007963B (zh) * | 2019-05-31 | 2022-08-12 | 宝山钢铁股份有限公司 | 带钢表面动态可调整除鳞压力控制方法和*** |
FR3112297B1 (fr) * | 2020-07-07 | 2024-02-09 | Constellium Neuf Brisach | Procédé et équipement de refroidissement sur un Laminoir réversible à chaud |
EP4161714A1 (fr) * | 2020-06-04 | 2023-04-12 | Constellium Neuf Brisach | Procede et equipement de refroidissement sur un laminoir reversible a chaud |
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JP2001300627A (ja) * | 2000-04-18 | 2001-10-30 | Nippon Steel Corp | 厚鋼板冷却方法 |
WO2010110473A1 (ja) * | 2009-03-25 | 2010-09-30 | Jfeスチール株式会社 | 厚鋼板の製造設備及び製造方法 |
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JPH06330155A (ja) | 1993-05-26 | 1994-11-29 | Kawasaki Steel Corp | 厚鋼板の冷却方法 |
US6068887A (en) * | 1997-11-26 | 2000-05-30 | Kawasaki Steel Corporation | Process for producing plated steel sheet |
KR100496607B1 (ko) * | 2000-12-27 | 2005-06-22 | 주식회사 포스코 | 열연코일의 제조방법 및 그 장치 |
JP2003220401A (ja) * | 2000-12-28 | 2003-08-05 | Jfe Steel Kk | 熱間圧延方法および熱間圧延ライン |
US8157933B2 (en) * | 2007-03-27 | 2012-04-17 | Nippon Steel Corporation | High-strength hot rolled steel sheet being free from peeling and excellent in surface properties and burring properties, and method for manufacturing the same |
CN102099130B (zh) * | 2008-07-16 | 2014-03-12 | 杰富意钢铁株式会社 | 热钢板的冷却设备以及冷却方法 |
CN101456034B (zh) * | 2009-01-06 | 2011-02-16 | 北京科技大学 | 一种生产x80级抗大变形管线钢中厚板的方法 |
AT507663B1 (de) * | 2009-04-09 | 2010-07-15 | Siemens Vai Metals Tech Gmbh | Verfahren und vorrichtung zum aufbereiten von warmwalzgut |
JP5440203B2 (ja) * | 2010-01-22 | 2014-03-12 | Jfeスチール株式会社 | 高炭素熱延鋼板の製造方法 |
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JP2001300627A (ja) * | 2000-04-18 | 2001-10-30 | Nippon Steel Corp | 厚鋼板冷却方法 |
WO2010110473A1 (ja) * | 2009-03-25 | 2010-09-30 | Jfeスチール株式会社 | 厚鋼板の製造設備及び製造方法 |
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KR101691020B1 (ko) | 2016-12-29 |
CN105073293B (zh) | 2017-03-15 |
EP2979769A4 (en) | 2016-03-02 |
TWI569898B (zh) | 2017-02-11 |
CN105073293A (zh) | 2015-11-18 |
JP5720714B2 (ja) | 2015-05-20 |
WO2014156085A1 (ja) | 2014-10-02 |
EP2979769A1 (en) | 2016-02-03 |
KR20150122186A (ko) | 2015-10-30 |
TW201446353A (zh) | 2014-12-16 |
EP2979769B1 (en) | 2018-08-15 |
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