EP0201744A2 - Procédé pour laminer à chaud des brames en larges bandes - Google Patents

Procédé pour laminer à chaud des brames en larges bandes Download PDF

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Publication number
EP0201744A2
EP0201744A2 EP86105241A EP86105241A EP0201744A2 EP 0201744 A2 EP0201744 A2 EP 0201744A2 EP 86105241 A EP86105241 A EP 86105241A EP 86105241 A EP86105241 A EP 86105241A EP 0201744 A2 EP0201744 A2 EP 0201744A2
Authority
EP
European Patent Office
Prior art keywords
strip
lengths
hot
rolling
finishing train
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.)
Withdrawn
Application number
EP86105241A
Other languages
German (de)
English (en)
Other versions
EP0201744A3 (fr
Inventor
Wolfgang Dr. Rohde
Manfred Kolakowski
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
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0201744A2 publication Critical patent/EP0201744A2/fr
Publication of EP0201744A3 publication Critical patent/EP0201744A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0085—Joining ends of material to continuous strip, bar or sheet
    • 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
    • B21B1/24—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 continuous or semi-continuous process
    • B21B1/26—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 continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing 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

Definitions

  • the invention relates to a method for rolling from pre-strip to hot wide strip, with pre-strip lengths being rolled successively in a finishing train.
  • Hot strip mills of conventional design consist of single or multi-stand roughing streets and multi-stand finishing lines.
  • the roughing mill produces a hot strip with a thickness in the range of 25 to 60 mm, which can run freely behind the roughing mill before it is introduced into the finishing mill.
  • the belt is scooped before entering the finishing train. At this point it has already left the Vor No.
  • the finishing train When tapping into the finishing train, the finishing train is at a so-called infeed rate, which for small finished thicknesses of 2-3 mm is of the order of 1 m / s.
  • This speed results as a limitation from the exit roller table behind the finishing train, which does not allow a higher speed of approx. 11 m / s for the start of the belt. If the speed were to be increased, the beginning of the belt would be thrown up by bumping against the roller table rollers and would be bent between the roller table rollers if it fell. This results in known disruptive effects behind the finishing train.
  • the belt runs at a speed of 11 m / s constantly or with little acceleration over the roller table and is taken up in the reel system. After grasping the reel system, the speed limit no longer applies. The road can be accelerated.
  • the finish rolling temperature in the finishing stand increases. This increase in finish roll temperature is undesirable.
  • the increase is compensated for by a steady drop in temperature in the hot strip with increasing rolling time. If the acceleration is selected correctly, the temperature rise due to the acceleration can compensate for the temperature drop due to the increasing rolling time. The acceleration is therefore called temperature acceleration.
  • the production of the finishing train is limited for a given ring weight by the maximum possible threading speed of e.g. 10 to 11 m / s and the maximum possible temperature acceleration. Production can be increased if the acceleration is increased beyond the temperature acceleration. This measure is known and is practiced, but leads to the need for additional cooling in the finishing train.
  • the object of the invention is to provide a method and a system for rolling from pre-strip to hot wide strip with higher dimensional accuracy and more uniform structure, the productivity being increased again and the power requirement being reduced.
  • this is achieved by successively connecting pre-strip lengths fed to the finishing train to form an endless strip, which is finished-rolled at a constant speed, and then the connection points are separated from the finished hot-rolled strip.
  • the successive pre-strip lengths can be welded on the end face entirely or over partial areas.
  • the successive pre-strip lengths can be connected in a form-fitting manner, the positive-locking contour advantageously being produced by notching end faces of the pre-strip lengths assigned to one another.
  • a hot strip production line is preceded by a strip length connecting device which is movable in the conveying direction and a flying cross-cutting unit, a switch and a plurality of strip reels are arranged downstream.
  • pre-strip lengths produced by continuous casting can be used in the method according to the invention.
  • Strip lengths 1a, 1b coming from a roughing train or directly from a continuous caster are kept in a furnace 2 at the rolling temperature and successively conveyed out on a roller table 3.
  • the pre-strip lengths 1a, 1b pass through a descaler 4 and are then fed by a driver 5 to a device for connecting their associated ends.
  • This connecting device 6 is movable along a guide 7 parallel to the roller table 3 in parallel with the lengths of the sliver and back.
  • the pre-strip lengths can be connected either by butt welding according to FIG. 3 or by notching and latching the ends according to FIG. 4.
  • the moving connecting device 6 consists of a cutting device 8 and a butt welding device 9.
  • the ends of the pre-strip lengths 1a, 1b are first tapered in width and then pressed together and butt-welded according to FIG. 3.
  • the connecting device consists of the cutting device 8 and a latching device 10.
  • First, complementary form-fitting contours 11 are produced at the assigned ends of the pre-strip lengths 1a, 1b, which are brought into engagement in the latching device by sliding one over the other.
  • a hot wide strip finishing train consisting of seven four-high rolling stands 12.
  • Spray cooling devices 13 are arranged between the four-high rolling stands 12 in order to reduce excessively high final rolling temperatures.
  • the rolled hot wide strip 1c is cooled to reel temperature in a laminar cooling section 14.
  • a flying cross-cut shear 15 is arranged behind the laminar cooling section 14, by means of which the welding or interlocking connection point S or E is separated from the hot wide strip 1c.
  • the hot wide strip 1c is optionally guided to reels 17 and 19 via deflection and drive rollers 16, 18 serving as switches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP86105241A 1985-05-11 1986-04-16 Procédé pour laminer à chaud des brames en larges bandes Withdrawn EP0201744A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3517090 1985-05-11
DE19853517090 DE3517090A1 (de) 1985-05-11 1985-05-11 Verfahren zum walzen von vorband zu warmbreitband

Publications (2)

Publication Number Publication Date
EP0201744A2 true EP0201744A2 (fr) 1986-11-20
EP0201744A3 EP0201744A3 (fr) 1987-11-04

Family

ID=6270539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105241A Withdrawn EP0201744A3 (fr) 1985-05-11 1986-04-16 Procédé pour laminer à chaud des brames en larges bandes

Country Status (5)

Country Link
US (1) US4711114A (fr)
EP (1) EP0201744A3 (fr)
JP (1) JPS61259804A (fr)
CN (1) CN86102922A (fr)
DE (1) DE3517090A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490333A2 (fr) * 1990-12-10 1992-06-17 Hitachi, Ltd. Procédé et dispositif pour laminer et connecter des bandes d' acier
EP0528385A1 (fr) * 1991-08-16 1993-02-24 Kawasaki Steel Corporation Procédé pour le laminage continu à chaud de bandes
EP0647484A1 (fr) * 1993-10-07 1995-04-12 Kawasaki Steel Corporation Procédé pour laminer et couper un feuillard laminé à chaud en continu
EP0718412A1 (fr) * 1994-12-20 1996-06-26 Kawasaki Steel Corporation Procédé de fabrication de bandes d'acier électromagnétique non orienté ayant des propriétés magnétiques uniformes dans toute une bobine
CN1080602C (zh) * 1994-03-18 2002-03-13 株式会社日立制作所 用热工作状态制造薄板的系统和方法
WO2017140886A1 (fr) 2016-02-17 2017-08-24 Sms Group Gmbh Dispositif et procédé de soudage par friction de produits métalliques chauds
WO2019030392A1 (fr) 2017-08-10 2019-02-14 Sms Group Gmbh Dispositif et procédé de soudage par friction de produits métalliques chauds
EP4122613A1 (fr) * 2021-07-23 2023-01-25 SMS Group GmbH Procédé de fabrication d'une bande métallique
EP4122614A1 (fr) * 2021-07-23 2023-01-25 SMS Group GmbH Procédé de fabrication d'une bande métallique en bobine

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824698C2 (de) * 1987-07-20 1999-05-12 Fuji Photo Film Co Ltd Verfahren und Einrichtung zum Stoßverbinden von Metallbahnen oder -bändern
US5037024A (en) * 1987-07-20 1991-08-06 Fuji Photo Film Co., Ltd. Method of splicing metal webs
US5234154A (en) * 1991-04-26 1993-08-10 Hitachi, Ltd. Method and apparatus for joining hot strips
JPH0617133A (ja) * 1992-07-03 1994-01-25 Nippon Steel Corp 大重量コイルで磁性均一な方向性電磁鋼板の製造方法
EP0641614B1 (fr) * 1993-01-28 2001-11-14 Nippon Steel Corporation Procede de laminage a chaud continu et dispositif de jonction de materiaux lamines
JPH06299245A (ja) * 1993-04-12 1994-10-25 Nippon Steel Corp コイル長手方向に均一な高磁束密度を持つ一方向性電磁鋼板の製造方法
JP3254067B2 (ja) † 1993-05-07 2002-02-04 川崎製鉄株式会社 エンドレス圧延における板クラウンの制御方法
KR100241167B1 (ko) * 1995-04-18 2000-03-02 에모토 간지 연속열간압연에 있어서의 강편접합부의 압연방법
IT1288863B1 (it) * 1996-03-15 1998-09-25 Danieli Off Mecc Procedimento di laminazione in continuo per lamiere e/o nastri e relativa linea di laminazione in continuo
FR2746214B1 (fr) * 1996-03-15 1998-04-24 Procede et machine d'hybridation par refusion
JP3929147B2 (ja) * 1997-11-11 2007-06-13 石川島播磨重工業株式会社 巻き取り設備
DE19821301A1 (de) * 1998-05-13 1999-11-18 Abb Patent Gmbh Anordnung und Verfahren zum Erzeugen von Stahlband
CN100382903C (zh) * 2006-05-30 2008-04-23 江阴博丰钢铁有限公司 热轧条形宽扁钢的轧制工艺
JP5817430B2 (ja) * 2011-10-24 2015-11-18 Ｊｆｅスチール株式会社 シートバーの接合方法
CN103752610B (zh) * 2013-12-25 2016-03-23 马钢(集团)控股有限公司 一种改善汽车外板用钢表面质量的2250热连轧生产方法
CN104588418B (zh) * 2014-11-28 2016-09-28 首钢总公司 一种消除超低碳钢表面麻点缺陷的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394466A (en) * 1943-10-01 1946-02-05 Carnegie Illinois Steel Corp Metal strip processing apparatus
FR2266556A1 (en) * 1974-04-06 1975-10-31 Kyoei Steel Works Ltd Hot rolling mill for slabs - where slab heating furnace is followed by welding unit to make continuous material
JPS5522464A (en) * 1978-08-07 1980-02-18 Hitachi Ltd Continuous rolling method of slab
JPS5522500A (en) * 1979-08-06 1980-02-18 Nippon Steel Corp Hot rolling equipment array of steel product
JPS5677008A (en) * 1979-11-27 1981-06-25 Sumitomo Metal Ind Ltd Cold rolling method
EP0135133A2 (fr) * 1983-08-12 1985-03-27 Hitachi, Ltd. Méthode et appareil pour le laminage continu à chaud de pièces métalliques

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214618A (en) * 1937-08-28 1940-09-10 Westinghouse Electric & Mfg Co Continuously operating strip mill
US2348283A (en) * 1941-05-09 1944-05-09 Bethlehem Steel Corp Burr masher
SU75729A1 (ru) * 1948-04-17 1948-11-30 А.С. Гельман Способ стыковани концов непрерывно движущихс листов при прокатке
SU719715A1 (ru) * 1978-02-15 1980-03-05 Институт черной металлургии Способ бесконечной прокатки полос
JPS55112104A (en) * 1979-02-22 1980-08-29 Nippon Steel Corp Cold rolling mill
JPS58122109A (ja) * 1982-01-13 1983-07-20 Kawasaki Steel Corp 熱間圧延材の接続方法
AT372881B (de) * 1982-03-05 1983-11-25 Voest Alpine Ag Anlage zum warmwalzen von band- oder tafelfoermigem walzgut
SU1079317A1 (ru) * 1983-01-28 1984-03-15 Липецкий политехнический институт Способ подготовки полосы со сварными швами к прокатке

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394466A (en) * 1943-10-01 1946-02-05 Carnegie Illinois Steel Corp Metal strip processing apparatus
FR2266556A1 (en) * 1974-04-06 1975-10-31 Kyoei Steel Works Ltd Hot rolling mill for slabs - where slab heating furnace is followed by welding unit to make continuous material
JPS5522464A (en) * 1978-08-07 1980-02-18 Hitachi Ltd Continuous rolling method of slab
JPS5522500A (en) * 1979-08-06 1980-02-18 Nippon Steel Corp Hot rolling equipment array of steel product
JPS5677008A (en) * 1979-11-27 1981-06-25 Sumitomo Metal Ind Ltd Cold rolling method
EP0135133A2 (fr) * 1983-08-12 1985-03-27 Hitachi, Ltd. Méthode et appareil pour le laminage continu à chaud de pièces métalliques

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 4, Nr. 53 (M-8)[535], 19. April 1980; & JP-A-55 022 464 (HITACHI SEISAKUSHO K.K.) 18-02-1980 *
PATENT ABSTRACTS OF JAPAN, Band 4, Nr. 53 (M-8)[535], 19. April 1980; & JP-A-55 022 500 (SHIN NIPPON SEITETSU K.K.) 18-02-1980 *
PATENT ABSTRACTS OF JAPAN, Band 5, Nr. 147 (M-88)[819], 17. September 1981; & JP-A-56 077 008 (SUMITOMO KINZOKU KOGYO K.K.) 25-06-1981 *

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490333A2 (fr) * 1990-12-10 1992-06-17 Hitachi, Ltd. Procédé et dispositif pour laminer et connecter des bandes d' acier
EP0490333A3 (en) * 1990-12-10 1992-09-30 Hitachi, Ltd. Crop shear apparatus and crop shear equipment
US5260541A (en) * 1990-12-10 1993-11-09 Hitachi, Ltd. Crop shear apparatus and crop shear equipment
EP0528385A1 (fr) * 1991-08-16 1993-02-24 Kawasaki Steel Corporation Procédé pour le laminage continu à chaud de bandes
CN1058424C (zh) * 1993-10-07 2000-11-15 川崎制铁株式会社 无接头热轧钢带的轧制切断方法
KR100231980B1 (ko) * 1993-10-07 1999-12-01 에모토 간지 연속적열연강대의 압연절단방법
EP0647484A1 (fr) * 1993-10-07 1995-04-12 Kawasaki Steel Corporation Procédé pour laminer et couper un feuillard laminé à chaud en continu
CN1080602C (zh) * 1994-03-18 2002-03-13 株式会社日立制作所 用热工作状态制造薄板的系统和方法
EP0718412A1 (fr) * 1994-12-20 1996-06-26 Kawasaki Steel Corporation Procédé de fabrication de bandes d'acier électromagnétique non orienté ayant des propriétés magnétiques uniformes dans toute une bobine
US5639315A (en) * 1994-12-20 1997-06-17 Kawasaki Steel Corporation Process for producing non-oriented electromagnetic steel strip capable of retaining uniform magnetic quality in a product coil
CN1060528C (zh) * 1994-12-20 2001-01-10 川崎制铁株式会社 带卷内磁性能均一的无方向性电工钢带的制造方法
WO2017140886A1 (fr) 2016-02-17 2017-08-24 Sms Group Gmbh Dispositif et procédé de soudage par friction de produits métalliques chauds
WO2017140891A1 (fr) 2016-02-17 2017-08-24 Sms Group Gmbh Laminage en continu dans une installation csp à plusieurs lignes
WO2019030392A1 (fr) 2017-08-10 2019-02-14 Sms Group Gmbh Dispositif et procédé de soudage par friction de produits métalliques chauds
DE102017213986A1 (de) 2017-08-10 2019-02-14 Sms Group Gmbh Vorrichtung und Verfahren zum Reibschweißen warmer metallischer Produkte
EP4122613A1 (fr) * 2021-07-23 2023-01-25 SMS Group GmbH Procédé de fabrication d'une bande métallique
EP4122614A1 (fr) * 2021-07-23 2023-01-25 SMS Group GmbH Procédé de fabrication d'une bande métallique en bobine

Also Published As

Publication number Publication date
US4711114A (en) 1987-12-08
CN86102922A (zh) 1986-11-05
DE3517090A1 (de) 1986-11-13
EP0201744A3 (fr) 1987-11-04
JPS61259804A (ja) 1986-11-18

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Inventor name: KOLAKOWSKI, MANFRED