EP1084004B1 - Walzverfahren für ein metallband - Google Patents

Walzverfahren für ein metallband Download PDF

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Publication number
EP1084004B1
EP1084004B1 EP99915727A EP99915727A EP1084004B1 EP 1084004 B1 EP1084004 B1 EP 1084004B1 EP 99915727 A EP99915727 A EP 99915727A EP 99915727 A EP99915727 A EP 99915727A EP 1084004 B1 EP1084004 B1 EP 1084004B1
Authority
EP
European Patent Office
Prior art keywords
strip
rolling
coiler
temperature
mill
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
Application number
EP99915727A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1084004A1 (de
Inventor
Werner Mertens
Stephan Krämer
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 Schloemann Siemag AG
Schloemann Siemag 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
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Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP1084004A1 publication Critical patent/EP1084004A1/de
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • 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
    • C21D8/0226—Hot rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2201/00—Special rolling modes
    • B21B2201/04—Ferritic 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
    • 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
    • C21D9/68—Furnace coilers; Hot coilers

Definitions

  • the present invention relates to a rolling process for a Metal strip, especially a steel strip, in a reversing mill with an upstream and a downstream reel in which the Strip is unwound from one of the reels, the reversing mill passes through with a stitch reduction of at least 10% and from the other reel.
  • the strip has a strip temperature before the rolling, which is often above a desired target temperature.
  • the object of the present invention is a method specify by means of which the tape as quickly as possible on the desired rolling temperature can be brought.
  • the object is achieved in that the tape with a tape thickness from the upstream reel with a strip temperature above the target temperature is unwound, the reversing mill with a first stitch decrease of maximum 5% with a throughput speed passes through and coiled up by the downstream reel is chosen, with the throughput speed being selected in this way is that the strip reaches the target temperature when it is rewound Has.
  • the strip is cooled much faster than in a temperature compensation oven.
  • the number of passes should be kept as low as possible be, e.g. B. be only 1%, because of the deformation during Rolling the strip temperature is increased again. It is optimal if the first pass acceptance is zero, so the rolling mill is only in an empty stitch acts as a driver.
  • the desired rolling temperature can be set even more precisely when the strip is heated in the reels, the reversing mill So designed as a so-called Steckel rolling mill is.
  • the method according to the invention can be particularly advantageous for this be used in a single rolling mill both hot rolling as well as cold rolling steel.
  • the strip temperature is therefore advantageously above the so-called GOS line and the target temperature below this line, if the metal to be rolled is steel.
  • the strip thickness at which the strip temperature reaches the set temperature is preferably in the range between 5 and 15 mm.
  • a Steckel mill consists of a reversing mill 1 with one or two roll stands 2, 3, each of which a reel 4, 5 is upstream and downstream.
  • a strip 6 is to be rolled, for example by one Initial thickness from 50 mm to a final thickness of 1.2 mm. This will the strip 6 is rolled in the Steckel mill. So it will uncoiled from one of the reels 4, 5, then passes through Reversing mill 1 and will eventually on the other of the Reel 4, 5 rewound. Then the operating direction vice versa.
  • the tape 6 will be the next run through other the coiler 4, 5 coiled, passes through the reversing mill 1 and is then again from one of the reels 4, 5 coiled.
  • Each of these passes through the reversing mill 1 is commonly referred to as a stitch.
  • To the strip temperature T of the band 6 to keep as constant as possible
  • Reel 4, 5 designed as reel furnaces, in which the band 6 is heated.
  • the band 6 is a steel band according to the embodiment.
  • the ribbon 6 is usually hot rolled at the beginning. So it has one Belt temperature T above the GOS line for steel.
  • the Belt temperature T is, for example, 1100 ° C.
  • the band 6 is now in the reversing mill 1 in several Reverse hot-rolled passes until its strip thickness d between 5 and 15 mm, e.g. B. 10 mm.
  • the further rolling on the Final thickness of 1.2 mm should be done by cold rolling the strip 6.
  • the belt temperature T must be from 1100 ° C to a target temperature T * can be lowered for cold rolling.
  • the target temperature T * is below the GOS line for steel and is e.g. 700 ° C.
  • the strip temperature T is reduced as follows:
  • the pass acceptance in the reversing mill 1 is used for this pass set as low as possible. Ideally this is Stitch acceptance zero.
  • Band 6 has therefore enough time to be on the route between the two Cool coils 4, 5 to the target temperature T *. When reeling of the belt 6, this can therefore the target temperature T *, z. B. 700 ° C have reached.
  • the subsequent cold rolling is carried out in principle in exactly the same way like the previous hot rolling.
  • the reversing mill works So again as a normal rolling mill, which with each pass Strip thickness d of strip 6 is reduced, usually by 20 up to 50%, sometimes by as much as 60% per stitch. Only the last one Stitch on the. Final thickness of - for example - 1.2 mm is usually performed with a smaller stitch decrease of approx. 10%.
  • the throughput speed v of the band 6 can not be chosen so small that lowering the strip temperature T to the target temperature T * in a single stitch, two or even more such cooling stitches are performed before using the further rolling - here cold rolling - is continued.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
EP99915727A 1998-04-03 1999-03-30 Walzverfahren für ein metallband Expired - Lifetime EP1084004B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19815032A DE19815032A1 (de) 1998-04-03 1998-04-03 Walzverfahren für ein Metallband
DE19815032 1998-04-03
PCT/EP1999/002198 WO1999051368A1 (de) 1998-04-03 1999-03-30 Walzverfahren für ein metallband

Publications (2)

Publication Number Publication Date
EP1084004A1 EP1084004A1 (de) 2001-03-21
EP1084004B1 true EP1084004B1 (de) 2002-07-31

Family

ID=7863529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99915727A Expired - Lifetime EP1084004B1 (de) 1998-04-03 1999-03-30 Walzverfahren für ein metallband

Country Status (12)

Country Link
US (1) US6282938B1 (ja)
EP (1) EP1084004B1 (ja)
JP (1) JP2002510555A (ja)
KR (1) KR20010042406A (ja)
CN (1) CN1295505A (ja)
AT (1) ATE221422T1 (ja)
BR (1) BR9909375A (ja)
CA (1) CA2327106A1 (ja)
DE (2) DE19815032A1 (ja)
MX (1) MXPA00009684A (ja)
TW (1) TW453908B (ja)
WO (1) WO1999051368A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008010062A1 (de) * 2007-06-22 2008-12-24 Sms Demag Ag Verfahren zum Warmwalzen und zur Wärmebehandlung eines Bandes aus Stahl
DE102007031333A1 (de) * 2007-07-05 2009-01-15 Siemens Ag Walzen eines Bandes in einer Walzstraße unter Nutzung des letzen Gerüsts der Walzstraße als Zugverringerer
WO2009101941A1 (ja) * 2008-02-13 2009-08-20 Nippon Steel Corporation 鋼板の冷間圧延方法及び冷間圧延設備
WO2009110251A1 (ja) * 2008-03-07 2009-09-11 日本碍子株式会社 金属条の連続繰り返し圧延方法
EP3300809A1 (fr) 2016-09-28 2018-04-04 Primetals Technologies France SAS Installation et méthode de planage de produit métallique
CN109468438A (zh) * 2018-12-21 2019-03-15 武汉万实新能源科技股份有限公司 一种硅钢极薄带生产方法
EP3715002B2 (en) * 2019-01-29 2024-10-30 Primetals Technologies Japan, Ltd. Rolling equipment and method for operating rolling device
CN111872117B (zh) * 2020-07-07 2022-05-13 南京高精工程设备有限公司 一种模具钢连续可逆高速轧制机组设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505141A (en) * 1982-07-13 1985-03-19 Tippins Machinery Company, Inc. Apparatus for thermomechanically rolling hot strip product to a controlled microstructure
US4793401A (en) * 1985-12-12 1988-12-27 Kawasaki Steel Corporation Method of producing thin steel sheets having an improved processability
JPS62151209A (ja) * 1985-12-25 1987-07-06 Sumitomo Metal Ind Ltd 鋼板の圧延方法
US5195344A (en) * 1987-03-06 1993-03-23 Nippon Kokan Kabushiki Kaisha Warm rolling facility for steel strip coils
US4840051A (en) * 1987-06-01 1989-06-20 Ipsco Inc. Steel rolling using optimized rolling schedule
IT1259487B (it) 1992-08-26 1996-03-20 Danieli Off Mecc Procedimento per la produzione di lamiere sottili ed impianto di laminazione compatto adottante tale procedimento
US5706690A (en) * 1995-03-02 1998-01-13 Tippins Incorporated Twin stand cold reversing mill
US5810951A (en) * 1995-06-07 1998-09-22 Ipsco Enterprises Inc. Steckel mill/on-line accelerated cooling combination
ES2142528T3 (es) * 1995-09-06 2000-04-16 Schloemann Siemag Ag Instalacion de produccion de banda en caliente para laminar banda delgada.
IT1290743B1 (it) * 1997-04-10 1998-12-10 Danieli Off Mecc Procedimento di laminazione per prodotti piani con spessori sottili e relativa linea di laminazione

Also Published As

Publication number Publication date
US6282938B1 (en) 2001-09-04
EP1084004A1 (de) 2001-03-21
DE59902199D1 (de) 2002-09-05
KR20010042406A (ko) 2001-05-25
DE19815032A1 (de) 1999-10-07
JP2002510555A (ja) 2002-04-09
CN1295505A (zh) 2001-05-16
WO1999051368A1 (de) 1999-10-14
ATE221422T1 (de) 2002-08-15
MXPA00009684A (es) 2002-06-21
CA2327106A1 (en) 1999-10-14
TW453908B (en) 2001-09-11
BR9909375A (pt) 2000-12-05

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