CN1317055A - 制造冷轧带材或板材的方法 - Google Patents

制造冷轧带材或板材的方法 Download PDF

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CN1317055A
CN1317055A CN99810709A CN99810709A CN1317055A CN 1317055 A CN1317055 A CN 1317055A CN 99810709 A CN99810709 A CN 99810709A CN 99810709 A CN99810709 A CN 99810709A CN 1317055 A CN1317055 A CN 1317055A
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steel
cold
annealing
carry out
rolled
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CN1103824C (zh
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B·恩格尔
K·D·霍恩
K·D·施米特
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ThyssenKrupp Steel Europe AG
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ThyssenKrupp Stahl AG
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    • 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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—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
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—Cold rolling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Lubricants (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)

Abstract

本发明涉及由C、Al、Ti、V、Nb、分别最多为0.2%和Si、Mn分别最多为1%，和固氮所需量的硼(＞0.78×N)，其余组成为铁及不可避免的杂质的低合金钢制造冷轧带材或板材的方法，其中所述钢熔炼后铸造成板坯、薄板坯或带坯，在超过1100℃的初始温度且终止温度位于Ar3以下热轧，且其中热轧带材后经卷取和650℃以下冷轧，以后与冷轧程度无关地，冷轧带材在可能随钢的组成而变化且范围在520～780℃的较低的温度退火足够长的一段时间使得完全再结晶。本发明方法在制造完全再结晶的冷轧带材或板材时可简化工艺和降低生产成本。

Description

制造冷轧带材或板材的方法
本发明涉及由C、P、Al、Ti、V、Nb、S、B分别最多为2％和Si、Mn分别最多为1％，其余为铁和不可避免的杂质的低合金钢制造冷轧带材或板材的方法。熔炼后，一般采用连续铸造工艺将该钢铸造成板坯、薄板坯或带坯，然后热轧、冷轧和经再结晶退火。
冷轧带材和板材的完全再结晶化所需的退火温度水平会受到带钢制造的初期阶段的影响。例如，众所周知再结晶化温度可借助于热轧带材高的卷取温度和高的冷轧量来降低。
本发明的目标是减低制备完全再结晶的冷轧带材或板材的生产成本和相关制造费用。
为达这一目标，本发明提出在普通工艺中将板材或带材在超过1100℃的初始温度且终止温度位于Ar3线以下热轧，热轧带材在低于650℃的温度下卷取，然后，冷轧带材在与冷轧压缩比近乎无关的且在500～750℃间尽可能低的温度下冷轧足够的时间以保证完全再结晶化。
本发明基于以下令人惊奇的发现，即通过利用降低热轧终轧温度和低的卷取温度，能够在相对低的、与冷轧应变近乎无关的温度下获得冷轧带材的完全再结晶化。低温再结晶退火可节约能耗和费用。
除了上述列出的合金含量外，该钢可以含有0.01％的氮和固定氮所需的一定量的硼(＞0.78×N)。除了这些以外，对再结晶化条件无有害影响的少量其它合金元素也是允许的。
如果可能，热轧终止温度应位于Ar3线下50℃，且卷取温度优选地在300～600℃。如果有最高0.01％的低的碳含量的钢或经Ti、V、Nb微合金化的钢能够经600～780℃完全再结晶退火，而非微合金化的钢能够在很大程度上不依赖于冷轧程度的甚至更低的500～680℃的温度下进行完全再结晶退火。
依据5个实施例更详尽的阐述本发明。
表1给出了A～D四种深拉钢的化学成分。图1～5分别示出了热轧和退火条件。
曲线的变化显示，依据本发明通过低的热轧终止温度和低的卷取温度相结合，实施例A4～C4的冷轧带材或板材，特别是在30～50％低的冷轧程度下，不但在分批退火(Haubenglühe)设备中(图3～5)而且在连铸设备中(图1～2)，相对于在较高的热轧终止温度和卷取温度下加工的相同组成的材料，再结晶温度能够大大降低。
    表1
化学组成％w/w
钢种     C     Si     Mn     P     S     Al     N     Ti  Nb
    A     0,003     0,01     0,08     0,008     0,005     0,021     0,0022     0,061  -
    B     0,035     0,01     0,20     0,010     0,008     0,030     0,0039     -  -
    C     0,003     0,01     0,15     0,006     0,004     0,001     0,0016     -  -
    D     0,037     0,02     0,22     0,012     0,009     0,042     0,0045     -  0,030

Claims (6)

1．一种由C、Al、Ti、V、Nb最多分别为0.2％和Si、Mn最多分别为1％和固氮所需的量的硼(＞0.78×N)，其余为铁及不可避免的杂质的低合金钢制造冷轧带材或板材的方法，其中，熔炼后，将该钢铸造成板坯、薄板坯或带坯，在超过1100℃的初始温度且终止温度位于Ar3线以下条件下热轧，热轧带材在低于650℃的温度卷取并进行冷轧，以后冷轧带材在与冷轧程度无关且根据钢的组成尽可能低的处于520～780℃之间的温度下退火足够的时间以进行完全再结晶化。
2．根据权利要求1的方法，其特征在于在冷轧过程中带材在各冷轧步骤之间经过一次或多次中间退火。
3．根据权利要求1或2的方法，适用于C＜0.01％且无微合金化元素的钢和含有任意碳含量及微合金元素的钢，其中在连续退火设备中再结晶化退火在700～780℃进行。
4．根据权利要求1或2的方法，适用于含有超过0.1％的C且无微合金化元素的钢，其中在连续退火设备中再结晶化退火在600～680℃进行。
5．根据权利要求1或2的方法，适用于C＜0.01％且无微合金化元素的钢和含有任意碳含量及微合金元素的钢，其中在分批退火设备中再结晶化退火在600～680℃进行。
6．根据权利要求1或2的方法，适用于超过0.1％的C且无微合金化元素的钢，其中在分批退火设备中再结晶化退火在520～600℃进行。
CN99810709A 1998-09-08 1999-09-06 制造冷轧带材或板材的方法 Expired - Fee Related CN1103824C (zh)

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DE19840788.2 1998-09-08
DE19840788A DE19840788C2 (de) 1998-09-08 1998-09-08 Verfahren zur Erzeugung von kaltgewalzten Bändern oder Blechen

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302131C (zh) * 2001-10-31 2007-02-28 蒂森克鲁伯钢铁股份公司 规定用于制造非晶粒取向的电工钢片的热轧钢带及其制造方法
CN105834215A (zh) * 2009-02-09 2016-08-10 新日铁住金株式会社 热轧用钛坯料及其制造方法

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* Cited by examiner, † Cited by third party
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US8333923B2 (en) * 2007-02-28 2012-12-18 Caterpillar Inc. High strength gray cast iron
RU2699480C1 (ru) * 2018-12-14 2019-09-05 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Способ производства холоднокатаного проката

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US3857740A (en) * 1972-07-11 1974-12-31 Nippon Steel Corp Precipitation hardening high strength cold rolled steel sheet and method for producing same
JPS5338690B2 (zh) * 1972-11-20 1978-10-17
JPS6045689B2 (ja) * 1982-02-19 1985-10-11 川崎製鉄株式会社 プレス成形性にすぐれた冷延鋼板の製造方法
US4587371A (en) * 1984-08-27 1986-05-06 Cosden Technology, Inc. Hydrocarbon conversion of sulfur contaminated feed stock
JPS61238919A (ja) * 1985-04-15 1986-10-24 Kawasaki Steel Corp 面内異方性の小さい絞り用冷延鋼板の製造方法
DE3528782A1 (de) * 1985-08-10 1987-02-19 Hoesch Stahl Ag Verfahren zum herstellen eines alterungsbestaendigen bandstahles mit hoher kaltumformbarkeit
JPS62139822A (ja) 1985-12-11 1987-06-23 Kobe Steel Ltd 材質の均一性にすぐれた深絞り用冷延鋼板の製造方法
DE3803064C2 (de) * 1988-01-29 1995-04-20 Preussag Stahl Ag Kaltgewalztes Blech oder Band und Verfahren zu seiner Herstellung
JPH05239554A (ja) * 1992-02-28 1993-09-17 Kobe Steel Ltd 焼付硬化性を有する超深絞り用冷延鋼板の製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1302131C (zh) * 2001-10-31 2007-02-28 蒂森克鲁伯钢铁股份公司 规定用于制造非晶粒取向的电工钢片的热轧钢带及其制造方法
CN105834215A (zh) * 2009-02-09 2016-08-10 新日铁住金株式会社 热轧用钛坯料及其制造方法
CN105834215B (zh) * 2009-02-09 2019-08-02 日本制铁株式会社 热轧用钛坯料及其制造方法

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ZA200101676B (en) 2002-06-28
PL346523A1 (en) 2002-02-11
BR9913530A (pt) 2001-06-05
KR100613472B1 (ko) 2006-08-18
KR20010074992A (ko) 2001-08-09
EP1109942B1 (de) 2003-06-25
AU749783B2 (en) 2002-07-04
EP1109942A1 (de) 2001-06-27
RU2222610C2 (ru) 2004-01-27
TR200100654T2 (tr) 2001-07-23
DE19840788A1 (de) 2000-03-16
JP2002524657A (ja) 2002-08-06
PL191884B1 (pl) 2006-07-31
ES2201830T3 (es) 2004-03-16
AU5973599A (en) 2000-03-27
CA2342934A1 (en) 2000-03-16
DE19840788C2 (de) 2000-10-05
US6582537B1 (en) 2003-06-24
CZ2001735A3 (cs) 2002-03-13
CZ300683B6 (cs) 2009-07-15
WO2000014288A1 (de) 2000-03-16
CN1103824C (zh) 2003-03-26
ATE243769T1 (de) 2003-07-15
SK286577B6 (sk) 2009-01-07

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