EP2419226B1 - Verfahren zum bereitstellen mindestens einer arbeitswalze zum walzen eines walzguts - Google Patents
Verfahren zum bereitstellen mindestens einer arbeitswalze zum walzen eines walzguts Download PDFInfo
- Publication number
- EP2419226B1 EP2419226B1 EP10714199.6A EP10714199A EP2419226B1 EP 2419226 B1 EP2419226 B1 EP 2419226B1 EP 10714199 A EP10714199 A EP 10714199A EP 2419226 B1 EP2419226 B1 EP 2419226B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- roll
- profile
- rolling stock
- calculation
- 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
Links
Images
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
- 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
- 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
- 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
- B21B2263/00—Shape of product
- B21B2263/02—Profile, e.g. of plate, hot strip, sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/04—Flatness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/04—Flatness
- B21B2263/06—Edge waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/02—Roll dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2267/00—Roll parameters
- B21B2267/18—Roll crown; roll profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/12—Axial shifting the rolls
- B21B2269/14—Work rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2271/00—Mill stand parameters
- B21B2271/02—Roll gap, screw-down position, draft position
Definitions
- the invention relates to a method for providing at least one work roll for rolling a preferably strip-shaped rolling stock, wherein the work roll is provided to cooperate with and be supported by a second roll, in particular with an intermediate or support roll, wherein the second roll in its axial end portions have a regrind.
- very wide sheets for example, over 3,000 mm width
- undesirable profile shapes in the band namely W-shaped profiles and bead formations near the edge and flatness defects (quarter waves) on the final product.
- This can be attributed, inter alia, to the fact that, when rolling wide belts or sheets, the outer regions of the rolling stock are in the area of the back-up or even in the case of extended work rolls even outside the back-up rolls -Ballenkanten lie.
- the work roll bends back in these areas, so that it can come in the nip due to a non-parabolic profile shape, namely z. B. to the aforementioned bead formation. High rolling forces and work roll bending forces can exacerbate this effect.
- Rolld material profiles ie the distribution of the thickness of the rolling stock over its width, which deviate greatly from the parabolic shape, are generally undesirable because they can lead to unevenness in the rolling process or in the downstream processes.
- the dimensional stability of the product may be deteriorated.
- the application of roll grinding on the work roll for selectively influencing the roll gap profile is known.
- the work roll is provided with a profile which is described by a polynomial.
- a so-called. CVC profile is provided in which case a so-called.
- the aim here is to influence the rolling stock profile contour in the direct edge region in order to compensate for effects of the work roll flattening in the roll gap or the thermal expansion of the work roll on the roll gap profile.
- the present invention is therefore based on the object to propose a method for providing a work roll according to the type mentioned above, with which it is possible, even with a corresponding regrind the support or intermediate roll to allow optimal rolling, ie to roll a belt, which is characterized by a high quality and the desired shape. Accordingly, undesirable non-parabolic effects of the backup roll or intermediate roll regression on the nip profile shape are to be largely compensated.
- the equipment of the work rolls with a special grinding eg CVC grinding
- the compensation grinding according to step c) can be superimposed on a further profiling of the work roll.
- This further profiling of the work roll is preferably a parabolic profiling or an S-shaped profiling (so-called CVC profiling).
- the damping factor for the calculation according to step c) is preferably between 0.3 and 0.9, preferably between 0.4 and 0.8. A value of 0.6 has proven particularly useful. The factor is chosen so that for the broad bands or products no bead-shaped profile forms longer arise or the beads are greatly reduced and for narrower dimensions of the band no or only slightly disturbing effects occur.
- the calculation according to step a) is based on the maximum intended width of the rolling stock which is to be rolled with the work rolls.
- step a) is preferably based on a defined rolling force and a defined work roll bending force.
- step b) the same parameters as in step a) are preferably used.
- an offline calculated roll gap profile is used as the basis.
- the proposed method provides for work roll grinding to compensate for the bending behavior of the work roll in the region of the back-up roll grinding.
- a possibly desired special roll grinding eg a CVC grinding
- CVC grinding compensation grinding
- An essential feature of the proposed cut is that the effect of the regrind compensation is almost independent of the axial displacement position of the work rolls relative to each other and thus effective in the case of displaceability of the work rolls over the entire displacement range.
- the compensation grinding can be applied to both axially displaceable and non-displaceable work rolls.
- the compensation grinding can be combined with any roll grinding, d. H. be superimposed on this.
- the height of the cut can be varied depending on the current work roll diameter.
- the height can also be adapted to the current backup roll contour or intermediate roll contour (in terms of wear).
- the cut can be described for example by a point sequence or by a mathematical function (eg by a polynomial function).
- Fig. 1 are two work rolls 1 and 2 can be seen, which are part of a Quarto rolling mill (which is not shown itself).
- the work rolls 1, 2 are supported by support rollers 4 and 5 in a known manner.
- the support rollers 4, 5 have a regrind 6, ie the profile is withdrawn relative to the clean cylinder. In Fig. 1 this is greatly exaggerated.
- the work roll deflection is thus in the region of the back-up roll 6 depending on the rolled width of the rolled material 3, the applied rolling force and the set work roll bending force F B. Therefore, the choice of a frequently rolled large width of the rolling stock and a usual for the last stitches of a stitch plan average rolling force and a bending force (Balancierkraft) at a low level are advantageous for the grinding design. It can initially be assumed that medium roller diameters. The roll benders are each selected so that the calculated roll gap profiles are in the usual range (about 0.000 to 0.200 mm).
- the expected roll gap profile is calculated for the roll stand to be considered under the abovementioned boundary conditions for the maximum width to be rolled.
- the result of this calculation is in Fig. 2 exemplified.
- the roll gap profile shape can be seen at a rolling stock width of 3,100 mm without compensation of the rebound effect. It can clearly be seen that undesired profile progression occurs in the lateral area of the strip as a result of the work roll bending back.
- an ideal rolling stock contour is defined for the same case. This may be, for example, an offline calculated roll gap profile assuming an extended backup roll bale so that the rolled edges are not in the area of the backing roll regrind 6. This ideal profile shape as target contour is in turn for the strip with a width of 3,100 mm in Fig. 3 given by way of example.
- the next step is to subtract the target contour (according to Fig. 3 ) of the roll gap shape without compensation grinding (according to Fig. 2 ) determines the undesirable, caused by the rebound effect profile component.
- This is in Fig. 4 illustrated.
- the difference contour between target contour and nip shape without compensation is again outlined for a band with the width of 3,100 mm.
- the solid curve is the roll gap shape without compensation grinding, the dash-dotted curve indicates the target contour. Accordingly, the dashed curve indicates the difference contour needed to compensate for the rebound effect.
- the compensation grinding for the work roll results from the difference contour according to Fig. 4 , wherein the determined difference with a damping factor K of z. B. 0.7 is multiplied.
- K damping factor
- Fig. 6 The effect of the additional grinding on the unloaded roll gap is in Fig. 6 shown at different axial displacement positions. With a solid line the curve is outlined, which is present at axially undisplaced work rolls 1, 2. Meanwhile, the broken line curve indicates the course that results when the upper and lower work rolls are shifted by 150 mm from each other. Fig. 6 Thus, the influence on the unloaded roll gap in dependence on the axial displacement position. It can be seen that even with a relatively large axial displacement of the rollers, the desired effect remains largely constant.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Control Of Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009017536 | 2009-04-17 | ||
PCT/EP2010/002302 WO2010118862A2 (de) | 2009-04-17 | 2010-04-15 | Verfahren zum bereitstellen mindestens einer arbeitswalze zum walzen eines walzguts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2419226A2 EP2419226A2 (de) | 2012-02-22 |
EP2419226B1 true EP2419226B1 (de) | 2014-02-26 |
Family
ID=42338053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10714199.6A Active EP2419226B1 (de) | 2009-04-17 | 2010-04-15 | Verfahren zum bereitstellen mindestens einer arbeitswalze zum walzen eines walzguts |
Country Status (15)
Country | Link |
---|---|
US (1) | US20120000263A1 (ko) |
EP (1) | EP2419226B1 (ko) |
JP (1) | JP5679994B2 (ko) |
KR (1) | KR101299955B1 (ko) |
CN (1) | CN102395434B (ko) |
AU (1) | AU2010237331B2 (ko) |
BR (1) | BRPI1014649A2 (ko) |
CA (1) | CA2743400C (ko) |
DE (1) | DE102010014867A1 (ko) |
EG (1) | EG26541A (ko) |
MX (1) | MX2011005506A (ko) |
RU (1) | RU2487770C2 (ko) |
UA (1) | UA100086C2 (ko) |
WO (1) | WO2010118862A2 (ko) |
ZA (1) | ZA201102662B (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106553089A (zh) * | 2016-11-24 | 2017-04-05 | 南京钢铁股份有限公司 | 一种使用普通外圆磨床加工带有弧形凹度轧辊的加工方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3363896A1 (en) * | 2009-06-26 | 2018-08-22 | Lysando AG | Antimicrobial agents |
DE102010063828A1 (de) * | 2010-12-22 | 2012-06-28 | Sms Siemag Ag | Stützwalze und Walzenanordnung |
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 |
CN106734218A (zh) * | 2016-12-30 | 2017-05-31 | 中铝西南铝冷连轧板带有限公司 | 一种解决四辊冷轧机轧辊辊端压靠的方法 |
CN114700368B (zh) * | 2022-03-07 | 2023-05-05 | 北京科技大学 | 一种消除板带局部高点的工作辊辊形及设计方法 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5225824B2 (ko) * | 1972-10-16 | 1977-07-09 | ||
JPS6117312A (ja) * | 1984-07-04 | 1986-01-25 | Sumitomo Metal Ind Ltd | 4重式圧延機 |
US4596130A (en) * | 1985-03-04 | 1986-06-24 | Nippon Steel Corporation | Rolling mill |
DE3620197A1 (de) * | 1986-06-16 | 1987-12-17 | Schloemann Siemag Ag | Walzwerk zur herstellung eines walzgutes, insbesondere eines walzbandes |
DE3712043C2 (de) | 1987-04-09 | 1995-04-13 | Schloemann Siemag Ag | Walzgerüst mit axial verschiebbaren Walzen |
SU1479152A1 (ru) * | 1987-06-08 | 1989-05-15 | Донецкий политехнический институт | Опорный валок листопрокатной клети кварто |
JPH01118801U (ko) * | 1988-02-01 | 1989-08-11 | ||
GB2222376B (en) * | 1988-08-29 | 1993-04-07 | Sendzimir Inc T | Apparatus and method for cold rolling of metal strip |
JPH0620562B2 (ja) | 1988-12-28 | 1994-03-23 | 住友金属工業株式会社 | 熱間圧延時の板クラウン制御方法 |
US5653137A (en) * | 1989-05-31 | 1997-08-05 | Hitachi, Ltd. | Five-high rolling mill |
JP2628916B2 (ja) | 1989-06-28 | 1997-07-09 | 川崎製鉄株式会社 | リバース圧延時の平坦度制御方法 |
RU1780887C (ru) * | 1991-04-30 | 1992-12-15 | Институт черной металлургии | Четырехвалкова система |
JPH0523705A (ja) * | 1991-07-19 | 1993-02-02 | Nkk Corp | 鋼板の圧延方法 |
KR100277320B1 (ko) * | 1992-06-03 | 2001-01-15 | 가나이 쓰도무 | 온라인 롤 연삭 장치를 구비한 압연기와 압연 방법 및 회전 숫돌 |
JPH0615322A (ja) | 1992-07-03 | 1994-01-25 | Sumitomo Metal Ind Ltd | 熱間圧延時の板クラウン制御方法 |
DE4309986A1 (de) * | 1993-03-29 | 1994-10-06 | Schloemann Siemag Ag | Verfahren und Vorrichtung zum Walzen eines Walzbandes |
JP2904056B2 (ja) | 1995-06-06 | 1999-06-14 | 住友金属工業株式会社 | 熱間圧延における板クラウン制御方法 |
DE69637428T2 (de) * | 1995-12-26 | 2009-02-19 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Verfahren zum Messen von Bandprofil und Verfahren zum Steuern von kontinuierlichen Walzen |
JPH09253726A (ja) | 1996-03-27 | 1997-09-30 | Hitachi Ltd | 圧延機の設定制御方法及び装置 |
DE19719318C2 (de) * | 1997-05-08 | 2003-06-12 | Sms Demag Ag | Verfahren zur Beeinflussung der Bandkontur im Kantenbereich eines Walzenbandes |
DE19807115C1 (de) * | 1998-02-20 | 1999-09-09 | Schloemann Siemag Ag | Walze |
AT409229B (de) * | 1998-04-29 | 2002-06-25 | Voest Alpine Ind Anlagen | Verfahren zur verbesserung der kontur gewalzten materials und zur erhöhung der gewalzten materiallänge |
CN1270085A (zh) * | 1999-01-15 | 2000-10-18 | 张少渊 | 单(或双)传动输入轴可调式四辊十字轧机 |
IT1310776B1 (it) * | 1999-09-14 | 2002-02-22 | Danieli Off Mecc | Procedimento di controllo del profilo del nastro in una gabbiadi laminazione per nastri e/o lamiere |
US6158260A (en) * | 1999-09-15 | 2000-12-12 | Danieli Technology, Inc. | Universal roll crossing system |
JP3439707B2 (ja) * | 1999-12-07 | 2003-08-25 | マイクロハード株式会社 | 金属箔用圧延機 |
DE10039035A1 (de) | 2000-08-10 | 2002-02-21 | Sms Demag Ag | Walzgerüst mit einem CVC-Walzenpaar |
DE10102821A1 (de) * | 2001-01-23 | 2002-07-25 | Sms Demag Ag | Walzwerk zur Herstellung planer Walzbänder mit gewünschter Bandprofilüberhöhung |
DE102004020132A1 (de) * | 2003-12-23 | 2005-07-28 | Sms Demag Ag | Verfahren und Walzgerüst zur mehrfachen Profilbeeinflussung |
CN100333845C (zh) * | 2004-08-30 | 2007-08-29 | 宝山钢铁股份有限公司 | 一种辊形设计方法和抑制高次浪形的轧辊 |
JP4960009B2 (ja) * | 2006-05-09 | 2012-06-27 | スチールプランテック株式会社 | 圧延ロール、圧延機および圧延方法 |
BRPI0713147A2 (pt) * | 2006-06-14 | 2012-03-20 | Siemens Vai Metals Technologies Gmbh & Co | armação de laminação para produção de tira laminada ou chapa |
-
2010
- 2010-04-13 DE DE102010014867A patent/DE102010014867A1/de not_active Withdrawn
- 2010-04-15 AU AU2010237331A patent/AU2010237331B2/en not_active Ceased
- 2010-04-15 EP EP10714199.6A patent/EP2419226B1/de active Active
- 2010-04-15 MX MX2011005506A patent/MX2011005506A/es not_active Application Discontinuation
- 2010-04-15 UA UAA201108796A patent/UA100086C2/ru unknown
- 2010-04-15 CN CN201080017853.6A patent/CN102395434B/zh active Active
- 2010-04-15 RU RU2011127006/02A patent/RU2487770C2/ru active
- 2010-04-15 JP JP2011546724A patent/JP5679994B2/ja active Active
- 2010-04-15 KR KR1020117010158A patent/KR101299955B1/ko active IP Right Grant
- 2010-04-15 US US13/256,404 patent/US20120000263A1/en not_active Abandoned
- 2010-04-15 BR BRPI1014649A patent/BRPI1014649A2/pt not_active IP Right Cessation
- 2010-04-15 WO PCT/EP2010/002302 patent/WO2010118862A2/de active Application Filing
- 2010-04-15 CA CA2743400A patent/CA2743400C/en not_active Expired - Fee Related
-
2011
- 2011-04-11 ZA ZA2011/02662A patent/ZA201102662B/en unknown
- 2011-05-26 EG EG2011050844A patent/EG26541A/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106553089A (zh) * | 2016-11-24 | 2017-04-05 | 南京钢铁股份有限公司 | 一种使用普通外圆磨床加工带有弧形凹度轧辊的加工方法 |
Also Published As
Publication number | Publication date |
---|---|
JP5679994B2 (ja) | 2015-03-04 |
RU2011127006A (ru) | 2013-05-27 |
EP2419226A2 (de) | 2012-02-22 |
AU2010237331B2 (en) | 2013-05-23 |
AU2010237331A1 (en) | 2010-10-21 |
US20120000263A1 (en) | 2012-01-05 |
WO2010118862A2 (de) | 2010-10-21 |
UA100086C2 (ru) | 2012-11-12 |
MX2011005506A (es) | 2011-06-16 |
RU2487770C2 (ru) | 2013-07-20 |
CA2743400C (en) | 2013-02-26 |
CA2743400A1 (en) | 2010-10-21 |
CN102395434B (zh) | 2014-03-26 |
JP2012516777A (ja) | 2012-07-26 |
ZA201102662B (en) | 2011-12-28 |
KR101299955B1 (ko) | 2013-08-26 |
EG26541A (en) | 2014-02-09 |
WO2010118862A9 (de) | 2011-01-27 |
DE102010014867A1 (de) | 2010-11-18 |
CN102395434A (zh) | 2012-03-28 |
BRPI1014649A2 (pt) | 2016-04-12 |
WO2010118862A3 (de) | 2010-12-09 |
KR20110066216A (ko) | 2011-06-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20111117 |
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