JP5350253B2 - ボロンミクロ合金化多相鋼からフラット鋼生成物を製造する方法 - Google Patents
ボロンミクロ合金化多相鋼からフラット鋼生成物を製造する方法 Download PDFInfo
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- JP5350253B2 JP5350253B2 JP2009533822A JP2009533822A JP5350253B2 JP 5350253 B2 JP5350253 B2 JP 5350253B2 JP 2009533822 A JP2009533822 A JP 2009533822A JP 2009533822 A JP2009533822 A JP 2009533822A JP 5350253 B2 JP5350253 B2 JP 5350253B2
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title description 3
- 229910052796 boron Inorganic materials 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000005098 hot rolling Methods 0.000 claims abstract description 23
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims description 2
- 238000005097 cold rolling Methods 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 abstract 2
- 238000005246 galvanizing Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 229910001563 bainite Inorganic materials 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000742 Microalloyed steel Inorganic materials 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000161 steel melt Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/041—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular fabrication or treatment of ingot or slab
- C21D8/0415—Rapid solidification; Thin strip casting
-
- 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
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
- C21D8/0473—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Description
以下の組成(重量%で表示)
C: 0.08 〜 0.12%
Mn: 1.70 〜 2.00%
P: ≦ 0.030%
S: ≦ 0.004%
Si: ≦ 0.20%
Al: 0.01 〜 0.06%
N: ≦ 0.0060%
Cr: 0.20 〜 0.50%
Ti: 0.010 〜 0.050%
B: 0.0010 〜 0.0045%
残余鉄及び不可避の不純物
を有し、そして、多相ミクロ組織を形成する鋼を、厚さ1〜4mmを有する鋳造ストリップへ鋳造して;
800〜1100℃の範囲にある最終熱間圧延温度、20%を超える変形度で、前記鋳造ストリップを連続処理中にインラインで、0.5〜3.2mmの範囲にある厚さを有する熱間圧延ストリップへ熱間圧延して;
前記熱間圧延ストリップを、250〜570℃の範囲にある巻き取り温度で巻き取り;そして、
5%の最小破断伸びA80での、800MPaの最小引張強さRmを有する熱間圧延ストリップを得る;
フラット鋼生成物の製造方法によって達成される。
Claims (12)
- フラット鋼生成物の製造方法であって、
以下の組成(質量%で表示)
C: 0.08 〜 0.12%
Mn: 1.70 〜 2.00%
P: ≦ 0.030%
S: ≦ 0.004%
Si: ≦ 0.20%
Al: 0.01 〜 0.06%
N: ≦ 0.0060%
Cr: 0.20 〜 0.50%
Ti: 0.010 〜 0.050%
B: 0.0010 〜 0.0045%
残余鉄及び不可避の不純物
を有し、そして、多相ミクロ組織を形成する鋼を、厚さ1〜4mmを有する鋳造ストリップへ鋳造して;
800〜1100℃の範囲にある最終熱間圧延温度、20%を超える変形度で、前記鋳造ストリップを連続処理中にインラインで、0.5〜3.2mmの範囲にある厚さを有する熱間圧延ストリップへ熱間圧延して;
前記熱間圧延ストリップを、250〜570℃の範囲にある巻き取り温度で巻き取り;そして、
5%以上の破断伸びA80 及び800MPa以上の引張強さRmを有する熱間圧延ストリップを得る;
前記製造方法。 - 熱間圧延ストリップの幅が、1200mmを超えることを特徴とする、請求項1に記載の方法。
- 熱間圧延ストリップの厚さが、1.5mm以下であることを特徴とする、請求項1又は2に記載の方法。
- 熱間圧延ストリップを、厚さ0.5〜1.4mmを有する冷間圧延ストリップへ冷間圧延することを特徴とする、請求項1〜3のいずれか一項に記載の方法。
- 冷間圧延ストリップを、焼鈍温度750〜850℃で焼鈍することを特徴とする、請求項4に記載の方法。
- 冷間圧延ストリップの引張強さが、800MPa以上であることを特徴とする、請求項4又は5に記載の方法。
- 冷間圧延ストリップが、10%以上の破断伸びA50を有することを特徴とする、請求項4〜6のいずれか一項に記載の方法。
- 熱間圧延又は冷間圧延ストリップに、金属コーティングを施すことを特徴とする、請求項1〜7のいずれか一項に記載の方法。
- 金属コーティングが亜鉛コーティングであることを特徴とする、請求項8に記載の方法。
- 得られた熱間圧延ストリップが10%以上の破断伸びA80 である場合に、最終熱間圧延温度が900〜1020℃であり、そして、巻き取り温度が420〜490℃であることを特徴とする、請求項1〜9のいずれか一項に記載の方法。
- 得られた熱間圧延ストリップが1000MPa以上の引張強さRm である場合に、最終熱間圧延温度が900〜1100℃であり、そして、巻き取り温度が450〜570℃であることを特徴とする、請求項1〜9のいずれか一項に記載の方法。
- 得られた熱間圧延ストリップが1200MPa以上の引張強さRm である場合に、最終熱間圧延温度が800〜1000℃であり、そして、巻き取り温度が250〜550℃であることを特徴とする、請求項1〜9のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06123139A EP1918406B1 (de) | 2006-10-30 | 2006-10-30 | Verfahren zum Herstellen von Stahl-Flachprodukten aus einem mit Bor mikrolegierten Mehrphasenstahl |
EP06123139.5 | 2006-10-30 | ||
PCT/EP2007/061390 WO2008052919A1 (de) | 2006-10-30 | 2007-10-24 | Verfahren zum herstellen von stahl-flachprodukten aus einem mit bor mikrolegierten mehrphasenstahl |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2010508435A JP2010508435A (ja) | 2010-03-18 |
JP2010508435A5 JP2010508435A5 (ja) | 2010-07-22 |
JP5350253B2 true JP5350253B2 (ja) | 2013-11-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009533822A Expired - Fee Related JP5350253B2 (ja) | 2006-10-30 | 2007-10-24 | ボロンミクロ合金化多相鋼からフラット鋼生成物を製造する方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100043513A1 (ja) |
EP (1) | EP1918406B1 (ja) |
JP (1) | JP5350253B2 (ja) |
KR (1) | KR101461583B1 (ja) |
CN (1) | CN101528970B (ja) |
AT (1) | ATE432376T1 (ja) |
DE (1) | DE502006003835D1 (ja) |
ES (1) | ES2325962T3 (ja) |
PL (1) | PL1918406T3 (ja) |
WO (1) | WO2008052919A1 (ja) |
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CA2701903C (en) * | 2007-10-10 | 2017-02-28 | Nucor Corporation | Complex metallographic structured steel and method of manufacturing same |
US20110277886A1 (en) | 2010-02-20 | 2011-11-17 | Nucor Corporation | Nitriding of niobium steel and product made thereby |
DE102011117572A1 (de) * | 2011-01-26 | 2012-08-16 | Salzgitter Flachstahl Gmbh | Höherfester Mehrphasenstahl mit ausgezeichneten Umformeigenschaften |
EP2489748B1 (de) * | 2011-02-18 | 2017-12-13 | ThyssenKrupp Steel Europe AG | Aus einem Komplexphasenstahl hergestelltes warmgewalztes Stahlflachprodukt und Verfahren zu dessen Herstellung |
WO2013182622A1 (de) * | 2012-06-05 | 2013-12-12 | Thyssenkrupp Steel Europe Ag | Stahl, stahlflachprodukt und verfahren zur herstellung eines stahlflachprodukts |
CN102766821B (zh) * | 2012-07-31 | 2014-10-29 | 宝山钢铁股份有限公司 | 高强度大线能量焊接用厚钢板 |
JP5942712B2 (ja) * | 2012-09-06 | 2016-06-29 | 新日鐵住金株式会社 | スカム堰、薄肉鋳片の製造方法、薄肉鋳片の製造装置 |
AT512399B1 (de) * | 2012-09-10 | 2013-08-15 | Siemens Vai Metals Tech Gmbh | Verfahren zum Herstellen eines mikrolegierten Röhrenstahls in einer Gieß-Walz-Verbundanlage und mikrolegierter Röhrenstahl |
EP2759614B1 (de) | 2013-01-25 | 2019-01-02 | ThyssenKrupp Steel Europe AG | Verfahren zum Erzeugen eines Stahlflachprodukts mit einem amorphen, teilamorphen oder feinkristallinen Gefüge und derart beschaffenes Stahlflachprodukt |
DE102013013067A1 (de) * | 2013-07-30 | 2015-02-05 | Salzgitter Flachstahl Gmbh | Siliziumhaltiger, mikrolegierter hochfester Mehrphasenstahl mit einer Mindestzugfestigkeit von 750 MPa und verbesserten Eigenschaften und Verfahren zur Herstellung eines Bandes aus diesem Stahl |
EP2924141B1 (de) * | 2014-03-25 | 2017-11-15 | ThyssenKrupp Steel Europe AG | Kaltgewalztes Stahlflachprodukt und Verfahren zu seiner Herstellung |
CN105950984B (zh) * | 2016-05-06 | 2018-03-27 | 武汉钢铁有限公司 | 抗拉强度650MPa级热轧复相钢及其生产方法 |
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2006
- 2006-10-30 DE DE502006003835T patent/DE502006003835D1/de active Active
- 2006-10-30 PL PL06123139T patent/PL1918406T3/pl unknown
- 2006-10-30 EP EP06123139A patent/EP1918406B1/de not_active Not-in-force
- 2006-10-30 AT AT06123139T patent/ATE432376T1/de active
- 2006-10-30 ES ES06123139T patent/ES2325962T3/es active Active
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2007
- 2007-10-24 CN CN2007800394406A patent/CN101528970B/zh not_active Expired - Fee Related
- 2007-10-24 KR KR1020097007485A patent/KR101461583B1/ko active IP Right Grant
- 2007-10-24 WO PCT/EP2007/061390 patent/WO2008052919A1/de active Application Filing
- 2007-10-24 US US12/447,621 patent/US20100043513A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
ES2325962T3 (es) | 2009-09-25 |
KR101461583B1 (ko) | 2014-11-13 |
US20100043513A1 (en) | 2010-02-25 |
PL1918406T3 (pl) | 2009-10-30 |
EP1918406A1 (de) | 2008-05-07 |
WO2008052919A1 (de) | 2008-05-08 |
EP1918406B1 (de) | 2009-05-27 |
JP2010508435A (ja) | 2010-03-18 |
CN101528970A (zh) | 2009-09-09 |
DE502006003835D1 (de) | 2009-07-09 |
CN101528970B (zh) | 2012-10-03 |
KR20090084815A (ko) | 2009-08-05 |
ATE432376T1 (de) | 2009-06-15 |
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