CN1230262C - 影响轧制带材的外形的方法 - Google Patents

影响轧制带材的外形的方法 Download PDF

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Publication number
CN1230262C
CN1230262C CNB028042158A CN02804215A CN1230262C CN 1230262 C CN1230262 C CN 1230262C CN B028042158 A CNB028042158 A CN B028042158A CN 02804215 A CN02804215 A CN 02804215A CN 1230262 C CN1230262 C CN 1230262C
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Prior art keywords
rolling
strip
band
profile
edge
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Expired - Fee Related
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CNB028042158A
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CN1489497A (zh
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康拉德·W·舒恩
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SMS Siemag AG
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SMS Demag AG
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    • 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
    • B21B45/0206—Coolants
    • 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
    • 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of 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
    • 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/613—Gases; Liquefied or solidified normally gaseous material
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/02—Edge parts
    • 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
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

本发明涉及一种用于影响在至少一个轧机机架中进行冷轧的轧制带材的外形的方法。在使用这个方法时，在进入轧机机架或第一个轧机机架之前，对所述轧制带材相对置的带材边缘区域进行强烈冷却。

Description

影响轧制带材的外形的方法
技术领域
本发明涉及一种用于影响在至少一个轧机机架中进行冷轧的轧制带材的外形的方法。
背景技术
在冷轧带材时，在带材的边缘区域相对带材的中间区域承受不同的负荷，这些不同的负荷对带材厚度在其宽度上的稳定性造成不利的影响。此外，除了在轧辊的宽度上产生的热凸度和在带材的边缘区域产生的强烈的轧辊磨损引起相对带材中间较厚的边缘轮廓外，基本上通过在带材宽度方向的材料横向流动还造成在边缘区域的强烈的厚度下降。这种由于材料流动造成的、相对带材中间较薄的带材边缘轮廓，被称为边缘下降(edge drops)。
按照EP0 776 710 A1，一种使边缘下降变为最小的可能性在于，强烈地对带材边缘区域的辊身部分进行冷却。用此使在带材边缘区域的轧辊直径有所减小，使得在此区域的轧辊间隙相应地变大。从而使由于材料横向流动造成的边缘下降受到抑制。
还可以通过在辊身端部断开轧辊的方式实现在带材边缘区域相应地放大轧辊的间隙。
最后还已知，通过向着带材边缘移动工作轧辊的方式对边缘下降的形成进行影响。
如果边缘下降的形成不受到抑制，轧制的带材就达不到要求的在整个宽度上的带材厚度公差，因此就不能以这种形状进行使用。
然后必须进行继续加工，就是例如通过整边。这不仅只是一个附加的加工过程，而且也产生不小的进一步的费用。
发明内容
本发明的任务是，创造一种方法，用这种方法能够使边缘下降的形成最小化。
按照本发明的这个任务用以下方式解决，即，在进入轧机机架或第一个轧机机架之前，在相对置的带材边缘区域，对轧制带材进行强烈冷却。
这种冷却例如可以通过在带材边缘区域施加液态氮来实现。
为了在通常的高轧制速度下尽可能快地实现冷却，合适的方式是，通过布置在带材两侧的u形壳体对带材边缘区域进行引导，在所述壳体内部给带材边缘区域施加冷却介质。
在按照本发明的方法中，尚未轧制的带材的带材边缘在进入到轧机机架或第一个轧机机架之前被冷却到较低的温度。其结果是，轧材在带材边缘区域变硬，从而较难变形。此外在这样低的温度下，该轧材有所收缩，也变得更薄。最后，带材边缘的这种低温也会影响到相接触的轧辊的辊身端部，由于强烈的冷却，轧辊在这个区域内的直径变小。
由此产生了一种影响的相加，导致了带材在带材边缘区域相对带材的中间区域被较少地轧制，因此导致了边缘下降的根本的减少。
由于一方面，例如，像为使工作轧辊移动所需要的轧机机架的昂贵的结构不再必不可少，按照本发明的解决方案与已知的方法相比特别有利。
另一方面，通过上述的影响提高了轧辊的寿命，最后，用于冷却带材边缘区域的装置可以毫无问题地进行追加安装，不需要插入到轧机机架的总体结构中。
在第一个轧机机架前或在使用多个一个接一个的轧机机架时，在第一个轧机机架前，在待轧制带材的两侧安装有冷却箱，所述冷却箱在带材通过时在相对置的带材边缘区域将所述带材冷却到一个较低的温度。
带着被强烈冷却的带材边缘，带材随后进入轧机机架并且在此以通常的方式进行轧制，其中，通过前面描述的影响，阻止了至少基本上减少了边缘下降的产生。
附图说明
图1是一幅示意图，其中显示了在边缘区域冷却轧制带材的情况。

Claims (1)

1.用于影响在至少一个轧机机架中进行轧制的轧制带材的外形的方法，其特征在于，在进入轧机机架或第一个轧机机架之前，在相对置的带材边缘区域，通过布置在带材两侧的u形壳体对所述轧制带材进行引导，其中，在所述壳体内部，通过施加液态氮对所述带材边缘区域进行强烈冷却。
CNB028042158A 2001-02-01 2002-01-21 影响轧制带材的外形的方法 Expired - Fee Related CN1230262C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10106273.7 2001-02-01
DE10106273A DE10106273A1 (de) 2001-02-01 2001-02-01 Verfahren zum Beeinflussen des Profils von Walzband

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CN1230262C true CN1230262C (zh) 2005-12-07

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EP (1) EP1355747B1 (zh)
JP (1) JP2004520169A (zh)
KR (1) KR100821243B1 (zh)
CN (1) CN1230262C (zh)
AT (1) ATE279271T1 (zh)
DE (2) DE10106273A1 (zh)
TW (1) TWI233378B (zh)
WO (1) WO2002060611A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2833871B1 (fr) * 2001-12-20 2004-07-09 Usinor Procede et installation de fabrication de bandes metalliques a partir de bandes coulees directement a partir de metal liquide
ES2350962T3 (es) * 2006-10-21 2011-01-28 Sms Siemag Ag Dispositivo para medir la tensión de fleje en un fleje metálico.
KR200449465Y1 (ko) * 2010-02-08 2010-07-12 윤원섭 방사선 자동선량계용 자동지급 시스템
CN102059250B (zh) * 2010-11-09 2012-07-04 燕山大学 采用低温液氮冷却介质的电塑性二辊轧机
CN110404964B (zh) * 2019-07-08 2020-07-31 中南大学 一种宽度方向差性能铝合金带材的轧制制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586602A (en) * 1978-12-25 1980-06-30 Kawasaki Steel Corp Skinpass rolling method for cold rolled steel strip
JPS5674301A (en) * 1979-11-20 1981-06-19 Sumitomo Metal Ind Ltd Preventing method for edge drop of steel strip during rolling work
JPS5758909A (en) 1980-09-29 1982-04-09 Nippon Steel Corp Controller for rolled shape
DE4433720A1 (de) * 1994-09-21 1996-03-28 Linde Ag Verfahren und Vorrichtung zum Härten von Skistahlkanten
DE19654068A1 (de) * 1996-12-23 1998-06-25 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes
JPH10192903A (ja) * 1997-01-10 1998-07-28 Sumitomo Metal Ind Ltd 熱間圧延用スラブの幅圧下方法
JP3276318B2 (ja) * 1997-08-28 2002-04-22 三菱重工業株式会社 鋼板端部の冷却装置

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ATE279271T1 (de) 2004-10-15
EP1355747A1 (de) 2003-10-29
KR100821243B1 (ko) 2008-04-10
KR20030068572A (ko) 2003-08-21
DE50201285D1 (de) 2004-11-18
DE10106273A1 (de) 2002-08-08
TWI233378B (en) 2005-06-01
CN1489497A (zh) 2004-04-14
EP1355747B1 (de) 2004-10-13
JP2004520169A (ja) 2004-07-08
WO2002060611A1 (de) 2002-08-08

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