CN1051259C - 从连续浇注的坯料制造热轧带钢的方法和设备 - Google Patents

从连续浇注的坯料制造热轧带钢的方法和设备 Download PDF

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CN1051259C
CN1051259C CN93119575A CN93119575A CN1051259C CN 1051259 C CN1051259 C CN 1051259C CN 93119575 A CN93119575 A CN 93119575A CN 93119575 A CN93119575 A CN 93119575A CN 1051259 C CN1051259 C CN 1051259C
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sheet billet
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CN1088491A (zh
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W·巴尔德
D·罗森塔尔
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SMS Siemag AG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/46Metal-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 metal immediately subsequent to continuous casting
    • B21B1/466Metal-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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2201/00Special rolling modes
    • B21B2201/04Ferritic rolling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

本发明涉及一种由连续浇注坯料,最好是薄板坯,在加热条件下,通过CSP方法的前后相继的工作步骤制造热轧带钢的方法和设备,其中,可将离开补偿炉的薄板坯,加热到高于在补偿炉中可达到的最大温度,在粗轧道次后,令薄板坯有足够的时间进行再结晶,薄板坯接着冷却到精轧机列的轧制温度。

Description

从连续浇注的坯料制造热轧带钢的方法和设备
本发明涉及一种由连续浇注坯料,最好是薄板坯,在加热条件下,通过CSP方法的前后相继工作步骤,制造热轧带钢的方法和设备,其中,坯料在凝固后分成一定的长度,此长度与所要求的钢卷重量相应,薄板坯在补偿炉中退火,接着在粗轧机列中粗轧,在精轧机列中精轧,在冷却区中冷却,并在卷取机上盘成卷。
这种方法和这类设备例如由DE 4009860 A1为已知。然而,采用这种做法只能制出品种有限的要求温控轧制的钢。尤其是要求在第一道次前,温度在最大可能的补偿炉温度以上,并要求在第二道次前温度要低得多的情况下,考虑到可轧制的最终厚度和最终轧制温度,采用上述专利这种做法会使钢的柔韧性不够。
本发明的目的是对制造热轧带钢的方法和相应的设备作出改进,它克服了上述的不足之处,使所有已知的钢的品种以足够的柔韧性被轧制。
为达到上述的目的,本发明提供一种由连续浇注的坯料,最好是薄板坯,在加热条件下,通过CSP方法的前后相继的工作步骤制造热轧带钢的方法,其中,坯料凝固后分成一定的长度,此长度与所要求的钢卷重量相应,薄板坯在补偿炉中退火,接着在粗轧机列中粗轧,在精轧机列中精轧,在冷却区中冷却,并在卷取机上盘成卷,其特征为:工作步骤为:
1)在退火后第一次粗轧道次前,将薄板坯加热到超过1150℃的温度,
2)粗轧薄板坯,并接着再结晶,以及
3)将粗轧带冷却到精轧机列的轧制温度,并接着精轧。
通过步骤1,除了迄今可能的钢的品种外,还可以轧制出下述品种的钢,即,它们要求在预变形轧制机架中的第一道次的温度,超过例如根据轧辊、轧辊轴承和驱动装置等的耐热性确定的补偿炉最大温度。
通过步骤2能获得最佳结构形态,所以提供给精轧机列的为未强化和消除应力的材料,这通过轧制件在再结晶区中的材料专用的停留时间来达到。
步骤3保证从轧制技术的观点看,在精轧机列中第一道次的温度,相应于在精轧机列中必需的温度变化,可调整到对各种钢的品种为最佳的。
根据本发明的进一步特征,要进行再结晶的粗轧带盘成卷,并在必要时在保温炉中作中间储存;再结晶后将带重新开卷,并送入冷却装置。这一特征允许在再结晶区中有较长的停留时间,而不会使再结晶区在空间上有过大的扩张,此时,由于再结晶区配有一台保温炉,允许在精轧机座上从事较短暂的维护工作,而前面的各部分不必停车。
实施上述方法的设备至少有一台连续浇注机,至少一台剪切机、至少一台补偿炉,一个粗轧机列、一个精轧机列、一个冷却区和一个卷取机,其特征为:在补偿炉和粗轧机列的第一机架之间设加热装置;在粗轧机列的后面设再结晶区;在精轧机列的第一机架前设冷却装置。
按照本发明的进一步特征,设有一台感应加热装置,允许在短时间内迅速地加热轧制件,使轧制件特性可以无困难地发生迅速变化。
若CSP设备应进行大批量生产,则如已知的那样,可为一个轧机机列提供两台平行排列的浇注机。对此已经证明适宜的是,在加热装置和补偿炉之间设渡船,它可轮流地向后继的设备部分提供轧制件。在这种情况下,若后继的轧机机列与浇注机和补偿炉之一排成一列,则已证明是有优点的。渡船后还设另外一台补偿炉。
借助附图在下文中对本发明作详细说明。其中:
图1按本发明的单铸坯CSP设备侧向示意图;
图2按图1所示设备之顶视图;
图3按本发明双铸坯CSP设备顶视示意图;
图4按图3改变后的双铸坯CSP设备顶视示意图。
图1表示一台连续浇注机1,设在它后面的是一台将连续浇注的坯料分切成薄板坯3用的剪切机2,薄板坯的长度与所需要的钢卷重量相应。在剪切机2上连接着补偿炉4,在这之后是另一台剪切机5。
接着,设有一台感应加热装置6,它可根据需要将从补偿炉4来的薄板坯3加热到温度1150℃。与感应加热装置6连接的是清洗氧化铁皮的设备7和粗轧机,在这里粗轧机是预变形机架8,接着是再结晶区9。在再结晶区9中有一台卷取机10和一台开卷机11,例如设一个卷带筒。在卷取机10和开卷机11旁边的是保温炉12,必要时可将已卷好的带卷,以中间存储和再结晶为目的,存放在此保温炉12中。
沿轧制方向看,在开卷机11后面,设一台冷却机13,利用它可将轧制带冷却到对紧接着的精轧机列14为最佳的温度,并在必要时可将轧制带脱氧化皮。与精轧机列14相连的还有一个冷却区15和卷取机16。
图3表示两台平行排列的连续浇注机1、1′,两台剪切机2、2′,以及两台补偿炉4、4′。在补偿炉4、4′后面接着的是渡船17,它具有运输车18。利用运输车18,可将薄板坯3、3′轮流地从补偿炉4、4′送入轧制线中。
图4表示连续浇注机1′、剪切机2′和补偿炉4′,与轧机机列设在一条线上;而连续浇注机1、剪切机2和补偿炉4,与之平行地设在轧制线之外。在这里,渡船也用于轮流地向轧制线供应轧制件。为保证有一个不变的浇注和轧制过程,在渡船17后设存储器19,它可以加热,也可以不加热,并与轧机机列设在一条线上。

Claims (7)

1.由连续浇注的坯料,最好是薄板坯,在加热条件下,通过CSP方法的前后相继的工作步骤制造热轧带钢的方法,其中,坯料凝固后分成一定的长度,此长度与所要求的钢卷重量相应,薄板坯在补偿炉中退火,接着在粗轧机列中粗轧,在精轧机列中精轧,在冷却区中冷却,并在卷取机上盘成卷,其特征为:工作步骤为:
1)在退火后第一次粗轧道次前,将薄板坯加热到超过1150℃的温度,
2)粗轧薄板坯,并接着再结晶,以及
3)将粗轧带冷却到精轧机列的轧制温度,并接着精轧。
2.按照权利要求1所述之方法,其特征为:要进行再结晶的粗轧带盘成卷,并在必要时在保温炉中作中间储存;再结晶后将带重新开卷,并送入冷却装置。
3.实施按权利要求1或2所述之方法制造热轧带钢的设备,至少有一台连续浇注机,至少一台剪切机,至少一台补偿炉,一个粗轧机列、一个精轧机列、一个冷却区和一个卷取机,其特征为:在补偿炉(4,4′)和粗轧机列的第一机架(8)之间设加热装置(6);在粗轧机列(8)的后面设再结晶区(9);在精轧机列(14)的第一机架前设冷却装置(13)。
4.按照权利要求3所述之设备,其特征为:加热装置所涉及的是一台感应加热装置(6)。
5.按照权利要求3所述之设备,其特征为:在再结晶区(9)中设一个卷取机(10)和一个开卷机(11)。
6.按照权利要求5所述之设备,其特征为:再结晶区(9)配有一台保温炉(12)。
7.按权利要求3所述之设备,其特征为:它具有多台平行排列的浇注机、剪切机和补偿炉,在补偿炉(4、4′)和加热装置(6)之间设渡船(17),必要时在渡船(17)后设存储器(19)。
CN93119575A 1992-10-28 1993-10-28 从连续浇注的坯料制造热轧带钢的方法和设备 Expired - Fee Related CN1051259C (zh)

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DE4236307A DE4236307A1 (de) 1992-10-28 1992-10-28 Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband, insbesondere aus bandförmig stranggegossenem Vormaterial
DEP4236307.1 1992-10-28

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CN1938110B (zh) * 2004-12-03 2010-09-29 Sms西马格股份公司 具有辊底式炉和回转运输机的csp连铸设备

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IT1290743B1 (it) * 1997-04-10 1998-12-10 Danieli Off Mecc Procedimento di laminazione per prodotti piani con spessori sottili e relativa linea di laminazione
DE19725434C2 (de) * 1997-06-16 1999-08-19 Schloemann Siemag Ag Verfahren zum Walzen von Warmbreitband in einer CSP-Anlage
KR100368253B1 (ko) 1997-12-09 2003-03-15 주식회사 포스코 미니밀프로세스에의한열연판의제조방법
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DE10357363B4 (de) * 2003-12-09 2006-02-09 Ispat Industries Ltd., Taluka-Pen Verfahren und Anlage zum Gießen und unmittelbar anschließenden Walzen von Gießsträngen aus Metall, insbesondere aus Stahlwerkstoffen, vorzugsweise Dünnsträngen
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DE102009057524A1 (de) 2009-12-02 2011-06-09 Sms Siemag Ag Verfahren zum Warmwalzen eines Metallbandes oder -blechs und Warmwalzwerk
IT1402239B1 (it) * 2010-07-21 2013-08-28 Danieli Off Mecc Apparato di mantenimento in temperatura e/o eventuale riscaldo di prodotti metallici lunghi e relativo procedimento
AT511429B1 (de) * 2011-06-10 2012-12-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur vorbehandlung eines walzguts vor dem warmwalzen
AT511674B1 (de) * 2011-06-24 2013-04-15 Siemens Vai Metals Tech Gmbh Inbetriebnahme einer fertigwalzstrasse in einer giess-walz-verbundanlage

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CN1938110B (zh) * 2004-12-03 2010-09-29 Sms西马格股份公司 具有辊底式炉和回转运输机的csp连铸设备

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CA2109397C (en) 2003-04-08
EP0595282B1 (de) 1995-12-20
RU2106212C1 (ru) 1998-03-10
DE4236307A1 (de) 1994-05-05
EP0595282B2 (de) 2002-01-02
KR970001550B1 (ko) 1997-02-11
TW262407B (zh) 1995-11-11
JPH06198302A (ja) 1994-07-19
EP0595282A1 (de) 1994-05-04
KR940008781A (ko) 1994-05-16
DE59301206D1 (de) 1996-02-01
CN1088491A (zh) 1994-06-29
JP3271724B2 (ja) 2002-04-08
ATE131753T1 (de) 1996-01-15
CA2109397A1 (en) 1994-04-29

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