CN1076639C - 带钢热轧方法和设备 - Google Patents

带钢热轧方法和设备 Download PDF

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CN1076639C
CN1076639C CN96118963A CN96118963A CN1076639C CN 1076639 C CN1076639 C CN 1076639C CN 96118963 A CN96118963 A CN 96118963A CN 96118963 A CN96118963 A CN 96118963A CN 1076639 C CN1076639 C CN 1076639C
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strip steel
rolling
length
rolling strip
roughing
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CN1154276A (zh
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S·克雷默尔
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SMS Siemag AG
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SMS Schloemann 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
    • B21B1/22Metal-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
    • B21B1/30Metal-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 in a non-continuous process
    • B21B1/32Metal-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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34Metal-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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
    • 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
    • B21B1/22Metal-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
    • B21B1/24Metal-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 in a continuous or semi-continuous process
    • B21B1/26Metal-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 in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B39/00Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48Tension control; Compression control
    • B21B37/52Tension control; Compression control by drive motor control

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

在一种带钢轧制方法和设备中,其中轧件在至少一架可逆式粗轧机架中被轧制成粗轧带钢,粗轧带钢经中间辊道被送到至少一架斯蒂克尔精轧机架处并在其中被精轧成预定厚度的精轧带钢,最后将带钢卷成带卷。本发明方法,缩短由粗轧带钢长度确定的中间辊道的长度,并粗轧带钢的粗轧第“n-1”道次中,串列轧制已既在粗轧机架中和又在精轧机架中进行,其中“n”为粗轧机架中的轧制道次数目。在相应设备中,中间辊道长度最多等于粗轧带钢在粗轧第“n-2”道次之前的长度。

Description

带钢热轧方法和设备
本发明涉及一种带钢热轧方法和一种带钢热轧设备,其中轧件在至少一架可逆式粗轧机架中经过若干粗轧道次被轧制成粗轧带钢,粗轧带钢经中间辊道被送到至少一架斯蒂克尔精轧机架处并在其中经过若干道次被精轧成预定厚度的粗轧带钢,最后将精轧带钢卷成带卷。
已有技术中常见的是,在一种方法或一种为此配属的设备中,粗轧机架和斯蒂克尔精轧机架之间的辊道长度是这样确定的,它可以使从粗轧机架出来的粗轧带钢“自由”平摊在粗轧机架和切头剪之间。因此,辊道长度主要由粗轧带钢长度确定。
由此产生这样的缺点,不是粗轧带钢长度以及产品的预定批料重量受到限制,就是设备需要更大的地方,由此进一步出现这样的问题,粗轧带钢经过粗轧机架和斯蒂克尔精轧机架之间的较长运输路线后由于在较长输送路程内的热量散失而以较低的粗轧带钢温度进入斯蒂克尔精轧机架中。因此,精轧机架中设备负荷的增大对精轧产生不利影响,同时还获得较小的每道压下量。
本发明的任务在于提供一种带钢热轧方法,其中轧件在至少一架可逆式粗轧机架中经过若干粗轧道次被轧制成粗轧带钢,粗轧带钢经中间辊道被送到至少一架斯蒂克尔精轧机架中并在其中经过多道次被精轧成预定厚度的粗轧带钢,最后将带钢卷成带卷;还提供一种专门用来实施上述方法的带钢热轧设备,它包括至少一架粗轧出粗轧带钢的可逆式粗轧机架和至少一架将粗轧带钢减薄成精轧带钢的斯蒂克尔精轧机架,其中粗轧机架和精轧机架通过一条其长度由粗轧带钢长度确定的中间辊道相连。该方法和设备避免了上述缺陷,并且可以在使用中实施不复杂的措施和手段。
为了解决以上任务,本发明中对上述类型的方法提出的方案在于,缩短由粗轧带钢长度限定的中间辊道长度,并且在粗轧带钢的粗轧的粗轧第“n-1”道次中,串列轧制已既在粗轧机架中和又在精轧机架组成中进行,其中“n”表示粗轧机架中的轧制道次的数目。
于是有利地出现了根据本发明缩短辊道的可能,这是因为粗轧带钢不再需要在粗轧最后几道中的某道之后或在粗轧最后一道之后自由输出,取而代之的是,粗轧带钢在轧制速度同步的情况下开始进行由粗轧机架和精轧机架组成的串列轧制。
除了缩短辊道并由此缩短总设备的直线长度外(其结果是较小的投资和生产成本),当粗轧带钢输入斯蒂克尔精轧机架时还出现升高的粗轧带钢温度。这对精轧产生有利的影响,并且例如可以在精轧机架中出现较小的负荷以及较大的压下量。
一种用来实施本发明方法的带钢热轧设备,它包括至少一架对粗轧带钢进行粗轧的可逆式粗轧机架和至少一架将粗轧带钢减薄成精轧带钢的斯蒂克尔精轧机架,其中粗轧机架和精轧机架通过一条其长度由粗轧带钢长度确定的辊道相连,其特点是中间辊道长度最多等于粗轧第“n-2”道次之前的粗轧带钢长度,其中“n”表示粗轧机架中的轧制道次的数目。
另外,辊道长度大约等于粗轧机架的切头剪之间的距离。
本发明的其他细节、技术特征和优点将出现在对图中示意画出的实施例的描述之中。
图中所示为:
图1是一套以工艺流程方式出现的传统设备,
图2是一套以工艺流程方式出现的根据本发明的设备。
图1所示的对应于已有技术布置的带钢热轧设备包括至少一架粗轧出粗轧带钢(10)的可逆式粗轧机架(1)和至少一架将粗轧带钢(10)减薄成精轧带钢的斯蒂克尔精轧机架(3)。两个设备段(粗轧机架(1)和精轧机架(3))通过一条中间辊道(2)相连。如图1所示,在传统设备中,中间辊道(2)的长度如此确定,它可以使从粗轧机架(1)输出的粗轧带钢(10)(其中,粗轧机架(1)是指一组粗轧机架中的最后的粗轧机架)自由平摊在粗轧机架(1)和切头剪(4)之间。于是出现这种情况,中间辊道(2)长度主要由粗轧带钢长度确定。到目前为止,利用中间存储器(卷箱)的解决方案尚未公开用于斯蒂克尔轧机机列,在热带钢-连轧机中经常使用中间存储器,并且由于有了中间存储器就可以缩短粗轧机架和精轧机架之间的距离。如图所示,粗轧带钢具有与粗轧机架(1)与切头剪(4)之间的距离相同的长度(L1),并且明显短于粗轧机架(1)和精轧机架(3)之间的距离值(A1)。象已知的那样,精轧机架(3)带有卷炉(5,6)。
图2画出了根据本发明的设备的实施例。在此,中间辊道(2)的长度(A2)最长等于粗轧第n-2道次之前的粗轧带钢(10)长度(L2),其中n是粗轧机架中的道次的数目。
以下将根据实施例进一步描述本发明。
实施例:
设定参数
-卷重:            18       kg/mm
-粗轧带钢厚度:    25       mm
-粗轧带钢长度:    94.74    m
在传统建成的设备中,粗轧机架(1)和精轧机架(3)之间的距离总计为约120m,其中粗轧机架(1)中的道次数为n。另外,粗轧带钢(10)在粗轧机架(1)和切头剪(4)之间的辊道上呈直线并自由地输送(图1)。根据本发明并如图2所示,当根据在第n-2道次中的粗轧带钢长度将辊道缩短到长度(A2)时,开始进行由粗轧机架(1)和精轧机架(3)组成的串列轧制,这是由于粗轧带钢(10)的长度(L2)大于粗轧机架(1)和精轧机架(3)之间的距离(A2)的缘故。-卷重:               18                         kg/mm-粗轧带钢厚度(n-2)    25mm×1/0.75×1/0.75=44.44mm(有粗轧的最后两道中取每道压下量为25%)-粗轧带钢长度(n-2)    53.29m
因此,所需的中间辊道(2)的长度可以缩短94.74m-53.29m=41.45m。
除了缩短中间辊道外,还有的优点就是粗轧带钢温度升高了并如上述那样对精轧产生有利影响。另外在串列轧制时,按照本发明的方法使粗轧机架(1)和精轧机架(3)的轧制速度同步。
在此还可以对生产制定这样的措施:在串列轧制时,中间辊道的传送速度以及传送方向与粗轧机架(1)和精轧机架(3)的轧制速度和轧制方向相同。

Claims (3)

1.带钢热轧方法,其中轧件在至少一架可逆式粗轧机架(1)中经若干粗轧道次被轧制成粗轧带钢(10),粗轧带钢经中间辊道(2)被送到至少一架斯蒂克尔精轧机架(3)中,并在其中经多道次被精轧成预定厚度的精轧带钢,最后卷成带卷,其特征在于,缩短由粗轧带钢(10)长度(L)确定的中间辊道(2)长度,并在粗轧带钢(10)的粗轧第“n-1”道次中,串列式轧制已既在粗轧机架(1)中和又在精轧机架(3)中进行,其中“n”表示粗轧机架(1)中的轧制道次的数目。
2.带钢热轧设备,特别用于实施上述方法的设备,包括至少一架粗轧出粗轧带钢(10)的可逆式粗轧机架(1)和至少一架将粗轧带钢(10)减薄成精轧带钢的斯蒂克尔精轧机架(3),其中粗轧机架(1)和精轧机架(3)通过一条其长度由粗轧带钢(10)长度(L1)确定的中间辊道(2)相连,其特征在于,该中间辊道(2)的长度最多与粗轧带钢(10)在粗轧第“n-2”道次之前的长度相等,其中“n”表示粗轧机架(1)中的轧制道次的数目。
3.如权利要求2所述的设备,其特征在于,该中间辊道(2)的长度约等于粗轧机架(1)与切头剪(4)之间的距离。
CN96118963A 1995-12-30 1996-12-30 带钢热轧方法和设备 Expired - Fee Related CN1076639C (zh)

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DE19549208A DE19549208A1 (de) 1995-12-30 1995-12-30 Verfahren und Anlage zum Warmwalzen von Bändern
DE19549208.0 1995-12-30

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US (2) US20030051525A1 (zh)
EP (1) EP0781609A1 (zh)
KR (1) KR970033127A (zh)
CN (1) CN1076639C (zh)
CA (1) CA2192887A1 (zh)
DE (1) DE19549208A1 (zh)
TW (1) TW391896B (zh)

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US6182490B1 (en) * 1999-03-19 2001-02-06 Danieli Technology Inc. Super thin strip hot rolling
DE10349950A1 (de) * 2003-10-24 2005-05-25 Sms Demag Ag Walzwerk zum Warmwalzen von Metall, insbesondere von Aluminium, sowie Warmwalzverfahren
FR2888763B1 (fr) * 2005-07-22 2008-10-03 Vai Clecim Sa Procede d'inspection et installation associee
JP5271512B2 (ja) * 2007-06-18 2013-08-21 Ihiメタルテック株式会社 熱間圧延装置
CN113020279B (zh) * 2021-02-26 2023-05-12 首钢京唐钢铁联合有限责任公司 一种平整机组的开卷平整控制方法、装置及***

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JPS5758903A (en) * 1980-09-25 1982-04-09 Nippon Steel Corp Hot rolling method for hot strip
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US4497191A (en) * 1982-03-05 1985-02-05 Voest-Alpine Aktiengesellschaft Plant and process for hot-rolling strip or plate stock

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CA2192887A1 (en) 1997-07-01
DE19549208A1 (de) 1997-07-03
KR970033127A (ko) 1997-07-22
CN1154276A (zh) 1997-07-16
TW391896B (en) 2000-06-01
US20030051525A1 (en) 2003-03-20
EP0781609A1 (de) 1997-07-02
US20040089046A1 (en) 2004-05-13

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