EP2026915B2 - Walzgerüst zur herstellung von walzband oder blech - Google Patents

Walzgerüst zur herstellung von walzband oder blech Download PDF

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Publication number
EP2026915B2
EP2026915B2 EP07725994.3A EP07725994A EP2026915B2 EP 2026915 B2 EP2026915 B2 EP 2026915B2 EP 07725994 A EP07725994 A EP 07725994A EP 2026915 B2 EP2026915 B2 EP 2026915B2
Authority
EP
European Patent Office
Prior art keywords
rolls
contour
barrel
function
corrected
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.)
Active
Application number
EP07725994.3A
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German (de)
English (en)
French (fr)
Other versions
EP2026915A1 (de
EP2026915B1 (de
Inventor
Alois Seilinger
Markus Widder
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.)
Primetals Technologies Austria GmbH
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Primetals Technologies Austria GmbH
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
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Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to PL07725994T priority Critical patent/PL2026915T5/pl
Priority to SI200730509T priority patent/SI2026915T2/en
Publication of EP2026915A1 publication Critical patent/EP2026915A1/de
Publication of EP2026915B1 publication Critical patent/EP2026915B1/de
Application granted granted Critical
Publication of EP2026915B2 publication Critical patent/EP2026915B2/de
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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
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands
    • 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
    • B21B2027/022—Rolls having tapered ends
    • 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

Definitions

  • the invention relates to a rolling stand for the production of rolled strip or sheet metal with work rolls, which are supported on support rolls or intermediate rolls and support rolls, wherein at least one of these rollers has a running over the entire effective bale length, describable by a non-linear function bale contour and the bale contour of this at least one Roller has bevels in at least one of the edge regions of their longitudinal extent and forms a corrected bale contours in these edge regions.
  • a rolling mill of this kind is for example from the AT 410765 B already known.
  • the roll bale contour of these rollers known in the art under the name SmartCrown® is mathematically describable by a modified sine function. By a suitable choice of the contour parameters, this results in a cosinusoidal idling gap, which can be influenced in its amplitude by axial displacement of the rollers.
  • the rolls of rolling mills can also have many other bale contours, which are characterized, for example, by a cylindrical, bulbous, concave-convexly curved or another curved contour.
  • bale ends of the rolls are usually chamfered and thus have an exemption in these edge regions. Exemptions of this kind are from the EP 0 258 482 A1 or the EP 1 228 818 A2 already known.
  • a two-stage regrind of the bale contour on work rolls in a quarto scaffolding or on intermediate rolls on a sexto scaffold is known.
  • a first regrind occurs in the direction of the end of the bale using a circular arc function, with exactly the same problems occurring in the transition region of the central bale contour into the regrind contour, as described above with respect to the older state of the art.
  • the first regrind is followed by a second regrind, which extends to the end of the bale and realizes a cylindrical bale contour.
  • the back-up rolls in a quarto scaffold and the back-up rolls or the intermediate rolls in a sexto-scaffolding are equipped with a corrected bale contour.
  • FIGS. 1 to 4 The load distribution between back-up rolls and work rolls in a prior art roll bale contour is contrasted with the load distribution between back-up rolls and work rolls in a roll bale contour according to the invention using the example of a four-high stand.
  • FIG. 1 shows a schematic representation of the roller assembly in a four-high stand for rolling a metal strip B, in particular a steel strip with work rolls 1 and back-up rolls 2.
  • the axially displaceable work rolls 1 each have a writeable by a concave-convex function function bale contour 3.
  • the work rolls 1 are supported by support rollers 2, which have a cylindrical bale contour 4 and are supported on the work rolls acting rolling forces.
  • the load distribution between the upper work roll 1 and the upper support roll 2 is in this case the roll bale design in FIG. 2 shown, with the specific force between the rollers is applied over the bale length and on the one hand
  • FIG. 3 shows a schematic representation of the roller assembly in a four-high stand with work rolls 1 and back-up rollers 2.
  • the axially displaceable work rolls 1 in turn each have a writable by a non-linear function bale contour 3, which complement each bale contours in a certain relative axial position of the work rolls complementary .
  • the two support rollers 2 also have a complementary complementary bale contour 4, which is also formed by a non-linear function, with the bale contours of the adjacent, cooperating work roll 1 and support roller 2 completely complement each other in an unloaded state.
  • the load distribution between the upper work roll 1 and the upper support roll 2 is in this case the roll bale design in FIG.
  • FIG. 5 shows in a schematic arrangement, the roller assembly in a SextoGerüst with work rolls 1, intermediate rolls 5 and back-up rolls 2, the work rolls being supported by the intermediate rolls on the back-up rolls.
  • the work rolls 1 are equipped with a cylindrical bale contour 3.
  • the bale contour of the work rolls can also be oriented to the bale contour of the adjacent intermediate rolls.
  • the intermediate rollers 5 have a bale contour 6 that can be described by a non-linear function.
  • the support rollers 2 have a bale contour 4 that can be described by a sine function.
  • bale contours 4 of the support rollers 2 and the bale contour of the intermediate rollers 5 complement each other completely in the unshifted axial position of the axially adjustable intermediate rollers 5 in the unloaded state.
  • FIG. 6 shows work rolls 1 and back-up rolls 2 in a four-high stand in a schematic representation, wherein the basic structure of the bale contours 3, 4 of the embodiment according to FIG. 3 follows. However, the contour is changed, whereby in the unloaded state only a partial or no supplement of the bale contours of the support roller 2 and the immediately adjacent work roll 1 occurs.
  • bale contours can also be chosen so that the contoured rolls have a positive or negative crown.
  • a sexto scaffold analogous to FIG. 5 possible to choose the contour of the support rollers and the intermediate rollers so that in the unloaded state only a partial complement of the bale contours of the support roller and the immediately adjacent intermediate roller occurs in an unloaded state.
  • bale contours invention Anfasungsfuntionen be used to produce corrected bale contours.
  • FIG. 7 the course of the roll bale contour 7 of a back-up roll or intermediate roll or work roll over the bale length is shown.
  • dash-dotted lines 8, 9 known from the prior art possibilities of chamfering a roller in the end regions are shown to avoid high edge pressures.
  • the chamfering according to the dotted line 8 produces a cylindrical end portion and the chamfering corresponding to the dotted line 9 a cone-shaped end portion of the rollers, in both cases a kink 10 in the contour over the bale length occurs, which forms a circumferential edge on the roller.
  • An improvement in the loading conditions results from a chamfer gradually approaching the bale contour, whereby on both sides a corrected bale contour is formed, which is illustrated by the dotted lines 11 and 12.
  • both curves At the transition point P of the bale contour in the corrected bale contour both curves have the same slope as the tangent t.
  • FIG. 8 shows, for example, the convex course of the roll bale contour 7 described by a nonlinear function on a back-up roll in a quarto backbone or on an intermediate roll or back-up roll in a sexto-scaffold.
  • the course of the chamfering function is shown independently of the course of the roll bale contour 7.
  • the course of the corrected bale contour 11, 12 is illustrated by dotted lines. At the transition point P of the roller contour 7 in the corrected bale contour 11, 12 both curves have the same slope.
  • FIG. 9 shows the analogous conditions in a roll bale contour which expresses a negative roll crown on the roll.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Rolling Contact Bearings (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Control Of Metal Rolling (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Milling Processes (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP07725994.3A 2006-06-14 2007-06-13 Walzgerüst zur herstellung von walzband oder blech Active EP2026915B2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07725994T PL2026915T5 (pl) 2006-06-14 2007-06-13 Klatka walcownicza do wytwarzania taśmy walcowanej lub blachy
SI200730509T SI2026915T2 (en) 2006-06-14 2007-06-13 Rolling frame for making a rolling tape or sheet metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT10212006 2006-06-14
PCT/EP2007/005217 WO2007144161A1 (de) 2006-06-14 2007-06-13 Walzgerüst zur herstellung von walzband oder blech

Publications (3)

Publication Number Publication Date
EP2026915A1 EP2026915A1 (de) 2009-02-25
EP2026915B1 EP2026915B1 (de) 2010-11-17
EP2026915B2 true EP2026915B2 (de) 2017-09-27

Family

ID=38430512

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07725994.3A Active EP2026915B2 (de) 2006-06-14 2007-06-13 Walzgerüst zur herstellung von walzband oder blech
EP07725995A Active EP2026916B1 (de) 2006-06-14 2007-06-13 Walzgerüst zur herstellung von walzband oder blech

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07725995A Active EP2026916B1 (de) 2006-06-14 2007-06-13 Walzgerüst zur herstellung von walzband oder blech

Country Status (12)

Country Link
US (2) US8881569B2 (uk)
EP (2) EP2026915B2 (uk)
CN (2) CN101511498B (uk)
AT (1) ATE488309T1 (uk)
BR (2) BRPI0713145A2 (uk)
DE (1) DE502007005682D1 (uk)
ES (2) ES2355948T5 (uk)
PL (2) PL2026915T5 (uk)
RU (2) RU2442669C2 (uk)
SI (2) SI2026916T1 (uk)
UA (2) UA92946C2 (uk)
WO (2) WO2007144162A1 (uk)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101511498B (zh) 2006-06-14 2011-06-15 西门子Vai金属技术两合公司 用来制造轧带或者板材的轧机机架
DE102009021414A1 (de) * 2008-12-17 2010-07-01 Sms Siemag Aktiengesellschaft Walzgerüst zum Walzen eines insbesondere metallischen Guts
DE102010014867A1 (de) * 2009-04-17 2010-11-18 Sms Siemag Ag Verfahren zum Bereitstellen mindestens einer Arbeitswalze zum Walzen eines Walzguts
AT509107B1 (de) 2009-12-10 2011-09-15 Siemens Vai Metals Tech Gmbh Walzgerüst zur herstellung von walzband
KR20120130324A (ko) * 2010-02-01 2012-11-30 더 팀켄 컴퍼니 롤러 베어링 케이지를 위한 통합된 롤링 및 벤딩 공정
DE102010029598A1 (de) * 2010-06-01 2011-12-01 ACHENBACH BUSCHHüTTEN GMBH Stützwalze und damit ausgerüstetes Walzgerüst
CN102397874A (zh) * 2010-09-16 2012-04-04 鞍钢股份有限公司 一种延长高速钢轧辊使用寿命的方法
DE102012212532B4 (de) 2012-07-18 2016-12-15 Achenbach Buschhütten GmbH & Co. KG Walzgerüst mit konturierten Walzen
US10226188B2 (en) 2013-08-23 2019-03-12 Covidien Lp Systems and methods for monitoring blood pressure
EP3108978B1 (en) * 2015-06-26 2019-02-20 DANIELI & C. OFFICINE MECCANICHE S.p.A. Rolling stand and rolling method
EP3124130A1 (de) 2015-07-28 2017-02-01 Primetals Technologies Austria GmbH Walzenschliff zur gezielten vermeidung von viertelwellen
DE102016222987A1 (de) * 2016-11-22 2018-05-24 Sms Group Gmbh Verfahren zum Schleifen der Kontur des Ballens einer Walze
CN113319128B (zh) * 2021-06-15 2021-12-14 北京科技大学 一种变接触工作辊及其辊形设计方法

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Publication number Priority date Publication date Assignee Title
JPS5956905A (ja) † 1982-09-28 1984-04-02 Kawasaki Steel Corp 調質圧延用６段圧延機

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Also Published As

Publication number Publication date
RU2009100918A (ru) 2010-07-20
US20090314047A1 (en) 2009-12-24
ES2392357T3 (es) 2012-12-10
UA92946C2 (uk) 2010-12-27
BRPI0713147A2 (pt) 2012-03-20
DE502007005682D1 (de) 2010-12-30
PL2026916T3 (pl) 2012-12-31
CN101511498A (zh) 2009-08-19
WO2007144161A1 (de) 2007-12-21
SI2026915T1 (sl) 2011-03-31
EP2026916B1 (de) 2012-08-01
EP2026915A1 (de) 2009-02-25
EP2026915B1 (de) 2010-11-17
PL2026915T3 (pl) 2011-04-29
CN101466483A (zh) 2009-06-24
RU2428268C2 (ru) 2011-09-10
US8881569B2 (en) 2014-11-11
EP2026916A1 (de) 2009-02-25
PL2026915T5 (pl) 2018-08-31
ATE488309T1 (de) 2010-12-15
SI2026916T1 (sl) 2012-11-30
RU2442669C2 (ru) 2012-02-20
US8413476B2 (en) 2013-04-09
CN101466483B (zh) 2011-06-15
RU2009100920A (ru) 2010-07-20
BRPI0713145A2 (pt) 2012-03-20
ES2355948T3 (es) 2011-04-01
CN101511498B (zh) 2011-06-15
WO2007144162A1 (de) 2007-12-21
SI2026915T2 (en) 2018-01-31
ES2355948T5 (es) 2018-02-14
UA93090C2 (uk) 2011-01-10
US20100031724A1 (en) 2010-02-11

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