EP1789210B1 - Konvexwalze zur beeinflussung von profil und planheit eines walzbandes - Google Patents

Konvexwalze zur beeinflussung von profil und planheit eines walzbandes Download PDF

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Publication number
EP1789210B1
EP1789210B1 EP05783941A EP05783941A EP1789210B1 EP 1789210 B1 EP1789210 B1 EP 1789210B1 EP 05783941 A EP05783941 A EP 05783941A EP 05783941 A EP05783941 A EP 05783941A EP 1789210 B1 EP1789210 B1 EP 1789210B1
Authority
EP
European Patent Office
Prior art keywords
roll
rolls
circumferential surface
cylindrical
roll stand
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05783941A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1789210A1 (de
Inventor
Jürgen Klöckner
Thorsten Bode
Ludwig Weingarten.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP1789210A1 publication Critical patent/EP1789210A1/de
Application granted granted Critical
Publication of EP1789210B1 publication Critical patent/EP1789210B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • 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
    • B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls

Definitions

  • the invention relates to a rolling stand for producing a rolled strip, comprising work rolls, which optionally supported on backup rolls or intermediate rolls and backup rolls, wherein the work rolls and / or the backup rolls and / or the intermediate rolls are axially displaceable against each other.
  • a generic rolling mill is eg off DE 691 15 746 T known.
  • Rolling mills are known with displaceable pairs of rolls, each roll at least one of these pairs of rollers is provided with a curved towards a ball end towards extending curved contour, which extend to the two rollers each to opposite sides over part of the Walzgutbreite, wherein the curved contour runs over the entire length of the bale of both rollers and has a shape in which the two bale contours complement each other in a certain relative axial position complementary.
  • a rolling mill for the production of rolled strip in which the rollers are provided with a substantially over the entire length of the bale extending curved contour.
  • the contours of all rollers are designed in the initial state or unloaded state, the axial course of the sum of the effective roll bale diameters in each relatively changed axial position of the rolls relative to each other assumes a course deviating from a constant course and follows a mathematical function symmetrical to the roll center.
  • CVC Continuously Variable Crown
  • the rolls provided with a convexly curved roll barrel section are formed with a roll diameter that is so large that the bending forces have a substantially parabolic (x 2 ) effect on the roll gap profile.
  • Rolls with conventional x 3 -CVC cuts also provide a predominantly parabolic effect, so that there is hardly any actuator that can compensate for planarity errors of higher order. This is especially true for the so-called Z-high scaffolds, which are equipped due to the small work roll diameter for design reasons without work roll bending.
  • the remaining rolls of the roll stand are formed with a continuous cylindrical roll barrel except the convex rolls.
  • FIG. 1 a sexto-framework for the production of a rolled strip 1 with work rolls 10, 11, intermediate rolls 20, 21 and back-up rolls 30, 31 is shown.
  • the work rolls 10, 11 and the support rollers 30, 31 are cylindrical over their entire length of bale and not axially displaceable in the illustrated embodiment, while the intermediate rollers 20, 21 according to the invention arranged axially displaceable in the direction of arrow 22 and with a partially convexly curved roll barrel section R (x) are formed.
  • FIG. 2 the alternative application of the invention to inventively designed work rolls 15, 16 in a four-high stand for producing a rolled strip 1 with work rolls 15, 16 and back-up rolls 30, 31 is shown. While the cylindrical support rollers 30, 31 are arranged axially non-displaceable here, too, the work rolls 15, 16 designed as convex rolls can be axially displaced in the direction of the arrow 12. Compared to the training of the work rolls 10, 11 of the Sexto scaffold of FIG. 1 is clearly seen that the formation of the work rolls 15, 16 in the form of convex rolls leads to much thicker rolls.
  • FIG. 3 are in a coordinate system, the possible adjustable nip profiles for a six-high rolling mill with small work rolls for two different intermediate rolls with convexly curved roll barrel section and a classic CVC intermediate roll for the entire displacement range but constant intermediate roll bending value.
  • the diagram contains in vertical division the square influence of the nip, indicated by the symbols 25 for positive and 25 'for negative changes.
  • the non-quadratic changes are indicated in horizontal division by the symbols 26 for positive and 26 'for negative changes. To illustrate the achievable effect of the horizontal scale is compared to the vertical reproduced much larger.
  • FIG. 4 are in one of the FIG. 3 the corresponding nip roll profiles for the intermediate roll 20 according to the invention and for the classic CVC intermediate roll 20 ", which results if, in addition to the intermediate roll displacement, the intermediate roll deflection is variable FIG. 3
  • the positioning field 23 for the intermediate roll 20 according to the invention and the steep field 24 for the CVC intermediate roll 20 " are clear.
  • the positioning field 24 of the CVC intermediate roll 20" makes clear that a residual error x 4 always occurs at the zero point of the coordinate system (rectangular profile).
  • FIG. 5 is an example achievable nip profile 3 for the six-high stand of Fig. 3 illustrated with inventively formed intermediate rolls when the optimum value for the intermediate roll bending and for the intermediate roll displacement is set.
  • the course of the roll gap profile 3 is shown over the entire roll barrel length L and the position of the strip width 2. This illustration clearly shows that the roll gap profile 3 deviates from a linear horizontal course only in the area of the strip edges 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Metal Rolling (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP05783941A 2004-09-14 2005-09-09 Konvexwalze zur beeinflussung von profil und planheit eines walzbandes Not-in-force EP1789210B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004044903 2004-09-14
PCT/EP2005/009717 WO2006029770A1 (de) 2004-09-14 2005-09-09 Konvexwalze zur beeinflussung von profil und planheit eines walzbandes

Publications (2)

Publication Number Publication Date
EP1789210A1 EP1789210A1 (de) 2007-05-30
EP1789210B1 true EP1789210B1 (de) 2008-11-05

Family

ID=35219678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05783941A Not-in-force EP1789210B1 (de) 2004-09-14 2005-09-09 Konvexwalze zur beeinflussung von profil und planheit eines walzbandes

Country Status (15)

Country Link
US (1) US7757531B2 (es)
EP (1) EP1789210B1 (es)
JP (1) JP5368702B2 (es)
KR (1) KR101130607B1 (es)
CN (2) CN103084391A (es)
AT (1) ATE413237T1 (es)
BR (1) BRPI0509781A8 (es)
CA (1) CA2568829C (es)
DE (1) DE502005005906D1 (es)
ES (1) ES2314709T3 (es)
RU (1) RU2391154C2 (es)
TW (1) TWI344871B (es)
UA (1) UA86058C2 (es)
WO (1) WO2006029770A1 (es)
ZA (1) ZA200605636B (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008009902A1 (de) * 2008-02-19 2009-08-27 Sms Demag Ag Walzvorrichtung, insbesondere Schubwalzengerüst
DE102009021414A1 (de) 2008-12-17 2010-07-01 Sms Siemag Aktiengesellschaft Walzgerüst zum Walzen eines insbesondere metallischen Guts
CN101992215B (zh) * 2009-08-13 2012-07-04 宝山钢铁股份有限公司 一种cvc工作辊轴向移动控制方法
JP5625749B2 (ja) * 2010-10-28 2014-11-19 Ｊｆｅスチール株式会社 圧延機および圧延方法
CN102632081B (zh) * 2012-04-06 2014-08-13 马钢(集团)控股有限公司 一种热轧粗轧机结构
KR101490621B1 (ko) * 2013-09-30 2015-02-05 주식회사 포스코 롤 표면 연삭 장치
CN103736735A (zh) * 2013-12-25 2014-04-23 烨辉（中国）科技材料有限公司 冷轧钢板用中间辊
CN104722585A (zh) * 2015-03-13 2015-06-24 李慧峰 板带轧机不对称板形的补偿方法
CN106269901B (zh) * 2015-06-09 2018-03-09 宝山钢铁股份有限公司 一种六辊cvc平整机的窄边浪控制方法
CN107052052B (zh) * 2017-05-19 2019-04-02 北京科技大学 多机型全宽度板带轧制板形控制工作辊及设计方法
CN108435797B (zh) * 2018-03-19 2020-02-07 包头钢铁（集团）有限责任公司 轧辊表面曲线的确定方法和轧辊
EP3685930B1 (de) * 2019-01-28 2021-11-24 Primetals Technologies Germany GmbH Lokales verändern des walzspalts im bereich der bandkanten eines gewalzten bands
US11919059B2 (en) 2019-01-28 2024-03-05 Primetals Technologies Germany Gmbh Changing the effective contour of a running surface of a working roll during hot rolling of rolling stock in a roll stand to form a rolled strip
CN112246874B (zh) * 2020-09-30 2022-10-14 安阳钢铁股份有限公司 一种减少中厚板轧机支承辊边部剥落的方法
CN112808382B (zh) * 2021-01-04 2022-08-16 中冶长天国际工程有限责任公司 一种辊缝微调装置、破碎机及破碎机辊缝控制方法
CN112872049B (zh) * 2021-01-28 2023-02-21 邯郸钢铁集团有限责任公司 一种冷轧超高强钢专用中间辊辊形的配型方法

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DE6911574U (de) 1969-03-21 1969-08-28 Franz Vogel Fa Vakuum-sicherheitsventil
JPS61144202A (ja) * 1984-12-19 1986-07-01 Kawasaki Steel Corp 板材の形状制御圧延方法および圧延機
DE3624241C2 (de) * 1986-07-18 1996-07-11 Schloemann Siemag Ag Verfahren zum Betrieb eines Walzwerkes zur Herstellung eines Walzbandes
DE3712043C2 (de) * 1987-04-09 1995-04-13 Schloemann Siemag Ag Walzgerüst mit axial verschiebbaren Walzen
SU1713696A1 (ru) 1989-11-27 1992-02-23 Институт черной металлургии Узел валков прокатной клети кварто полосового стана
SU1713697A1 (ru) 1990-01-23 1992-02-23 Производственное объединение "Новокраматорский машиностроительный завод" Прокатна клеть
US5174144A (en) * 1990-04-13 1992-12-29 Hitachi, Ltd. 4-high rolling mill
JP2928581B2 (ja) * 1990-04-13 1999-08-03 株式会社日立製作所 ４段圧延機及び圧延方法
KR100216299B1 (ko) 1991-05-16 1999-08-16 에모토 간지 6단 압연기
CN2149986Y (zh) 1991-12-04 1993-12-22 武汉钢铁公司 支持辊
JPH0810816A (ja) 1994-06-22 1996-01-16 Nisshin Steel Co Ltd 圧延方法および圧延機
US6119500A (en) * 1999-05-20 2000-09-19 Danieli Corporation Inverse symmetrical variable crown roll and associated method

Also Published As

Publication number Publication date
BRPI0509781A8 (pt) 2016-05-03
ZA200605636B (en) 2007-09-26
JP5368702B2 (ja) 2013-12-18
TWI344871B (en) 2011-07-11
JP2008513212A (ja) 2008-05-01
ES2314709T3 (es) 2009-03-16
US7757531B2 (en) 2010-07-20
WO2006029770A1 (de) 2006-03-23
CA2568829A1 (en) 2006-03-23
DE502005005906D1 (de) 2008-12-18
TW200616724A (en) 2006-06-01
BRPI0509781A (pt) 2007-10-23
CA2568829C (en) 2012-03-27
RU2006132233A (ru) 2008-03-20
US20080000281A1 (en) 2008-01-03
CN101018623A (zh) 2007-08-15
ATE413237T1 (de) 2008-11-15
UA86058C2 (ru) 2009-03-25
RU2391154C2 (ru) 2010-06-10
EP1789210A1 (de) 2007-05-30
KR20070051773A (ko) 2007-05-18
CN103084391A (zh) 2013-05-08
KR101130607B1 (ko) 2012-04-24

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