EP1355747B1 - Verfahren zum beeinflussen des profils von walzband - Google Patents
Verfahren zum beeinflussen des profils von walzband Download PDFInfo
- Publication number
- EP1355747B1 EP1355747B1 EP02701238A EP02701238A EP1355747B1 EP 1355747 B1 EP1355747 B1 EP 1355747B1 EP 02701238 A EP02701238 A EP 02701238A EP 02701238 A EP02701238 A EP 02701238A EP 1355747 B1 EP1355747 B1 EP 1355747B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- edge
- profile
- altering
- roller strip
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
Definitions
- the invention relates to a method for influencing the profile of at least a roll stand cold rolled strip.
- edge drops When cold rolling of strips, the strip edge areas face the Belt areas different loads on the constancy of the thickness adversely affect the width of the tape.
- the width of the Thermal crowning and increased wear on the rollers in the band edge areas that have a thicker edge profile than the center of the band would essentially be caused by the material cross flow behavior in Bandwidth direction caused a sharp decrease in thickness in the edge area. This caused by the material flow behavior, thinner towards the center of the belt Band edge profiles are referred to as edge drops.
- a corresponding roll gap enlargement can also be achieved in the strip edge area Turning off the rollers at the end of the bale can be achieved.
- edge drops If the formation of edge drops is not counteracted, the rolled strips do not achieve the required strip thickness tolerance over the entire width, so that they cannot be used in this form. Further processing is then necessary, for example by trimming the edges. This is not just an additional step, it is. there are also significant additional costs.
- the invention has for its object to provide a method with which The occurrence of edge drops can be minimized.
- This cooling takes place by applying liquid nitrogen to the band edge areas.
- the strip edge regions are guided through U-shaped housings arranged on both sides of the strip, within which the coolant is applied to the strip edge regions.
- the strip edges of the unrolled strip are thus brought to a lower temperature before they enter the first or the first roll stand.
- the rolled material becomes harder at the strip edge areas, so that it is more difficult to deform. It also contracts a bit at these low temperatures, so it gets thinner.
- this low temperature of the strip edges also affects the bale ends of the rollers that come into contact with them, because in this area they are reduced in diameter due to the strong cooling. Together, this results in a summation of influences which result in the strip being less rolled at the strip edge regions relative to the central region of the strip, which consequently leads to a substantial reduction in the edge drops.
- the solution according to the invention is particularly advantageous over the known methods because, on the one hand, for example, no complex design of the roll stands is required, as would be required for the work roll shift.
- the above-mentioned influences increase the service life of the rolls and, finally, the device for cooling the strip edge areas can be retrofitted without any problems, without the need to intervene in the overall structure of the roll stands.
- cooling boxes are arranged on both sides of the strip to be rolled, which bring the strip to a lower temperature in the opposite strip edge areas when it passes through the strip. With these strongly cooled strip edges, the strip then runs into the roll stand and is rolled there in the usual way, the occurrence of edge drops being prevented or at least substantially reduced by the influences described above.
Landscapes
- 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)
Description
Notwendig ist dann eine weitere Bearbeitung, und zwar beispielsweise durch Besäumen der Kanten. Dies ist nicht nur ein zusätzlicher Arbeitsgang, sondern es. entstehen auch nicht unerhebliche weitere Kosten.
Um die Abkühlung unter Berücksichtigung der üblicherweise hohen Walzgeschwindigkeiten möglichst schnell zu erreichen werden die Bandkantenbereiche durch beidseitig des Bandes angeordnete u-förmige Einhausungen geführt , innerhalb derer die Bandkantenbereiche mit dem Kühlmittel beaufschlagt werden.
Zusammen ergibt sich somit eine Summierung von Einflüssen, die dazu führen, dass das Band an den Bandkantenbereichen relativ zu dem mittleren bereich des Bandes weniger gewalzt wird, was folglich zu einer wesentliche Verringerung der edge drops führt.
Andererseits erhöht sich durch oben genannten Einflüsse die Lebensdauer der Walzen und schließlich läßt sich die Einrichtung zur Kühlung der Bandkantenbereiche problemlos nachträglich installieren, ohne das Eingriffe in den Gesamtaufbau der Walzgerüste erforderlich sind.
Mit diesen stark abgekühlten Bandkanten läuft das Band dann in das Walzgerüst ein und wird dort in üblicher Weise gewalzt, wobei durch die vorher beschriebenen Einflüsse, die Entstehung von edge drops unterbunden zumindest aber wesentlich verringert wird.
Claims (1)
- Verfahren zum Beeinflussen des Profils von in mindestens einem Walzgerüst zu walzendem Walzband,
dadurch gekennzeichnet, dass das Walzband vor dem Einlaufen in das oder das erste Walzgerüst an den gegenüberliegenden Bandkantenbereichen durch beidseitig des Bandes angeordnete u- förmige Einhausungen geführt wird, wobei die Bandkantenbereiche innerhalb dieser durch Beaufschlagung mit flüssigem Stickstoff stark abgekühlt werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10106273A DE10106273A1 (de) | 2001-02-01 | 2001-02-01 | Verfahren zum Beeinflussen des Profils von Walzband |
DE10106273 | 2001-02-01 | ||
PCT/DE2002/000254 WO2002060611A1 (de) | 2001-02-01 | 2002-01-21 | Verfahren zum beeinflussen des profils von walzband |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1355747A1 EP1355747A1 (de) | 2003-10-29 |
EP1355747B1 true EP1355747B1 (de) | 2004-10-13 |
Family
ID=7673645
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02701238A Expired - Lifetime EP1355747B1 (de) | 2001-02-01 | 2002-01-21 | Verfahren zum beeinflussen des profils von walzband |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1355747B1 (de) |
JP (1) | JP2004520169A (de) |
KR (1) | KR100821243B1 (de) |
CN (1) | CN1230262C (de) |
AT (1) | ATE279271T1 (de) |
DE (2) | DE10106273A1 (de) |
TW (1) | TWI233378B (de) |
WO (1) | WO2002060611A1 (de) |
Families Citing this family (6)
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 |
CN117300079A (zh) * | 2023-08-21 | 2023-12-29 | 江苏省沙钢钢铁研究院有限公司 | 带边缘质量 |
Family Cites Families (7)
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 |
-
2001
- 2001-02-01 DE DE10106273A patent/DE10106273A1/de not_active Withdrawn
-
2002
- 2002-01-21 JP JP2002560796A patent/JP2004520169A/ja active Pending
- 2002-01-21 DE DE50201285T patent/DE50201285D1/de not_active Expired - Lifetime
- 2002-01-21 AT AT02701238T patent/ATE279271T1/de active
- 2002-01-21 WO PCT/DE2002/000254 patent/WO2002060611A1/de active IP Right Grant
- 2002-01-21 CN CNB028042158A patent/CN1230262C/zh not_active Expired - Fee Related
- 2002-01-21 KR KR1020037008894A patent/KR100821243B1/ko not_active IP Right Cessation
- 2002-01-21 EP EP02701238A patent/EP1355747B1/de not_active Expired - Lifetime
- 2002-01-24 TW TW091101183A patent/TWI233378B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2002060611A1 (de) | 2002-08-08 |
CN1230262C (zh) | 2005-12-07 |
DE50201285D1 (de) | 2004-11-18 |
KR100821243B1 (ko) | 2008-04-10 |
KR20030068572A (ko) | 2003-08-21 |
CN1489497A (zh) | 2004-04-14 |
TWI233378B (en) | 2005-06-01 |
EP1355747A1 (de) | 2003-10-29 |
JP2004520169A (ja) | 2004-07-08 |
ATE279271T1 (de) | 2004-10-15 |
DE10106273A1 (de) | 2002-08-08 |
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