公开(公告)号：EP1414596A2

公开(公告)日：2004-05-06

申请号：EP02794551.8

申请日：2002-08-05

Applicant: SMS Demag Aktiengesellschaft

Inventor： ROSENTHAL, Dieter ,  SUDAU, Peter ,  HAFER, Joachim

IPC: B21B1/46

CPC classification number: B21B1/466 ,  B21B1/26 ,  B21B45/08 ,  B21B2013/003 ,  B21B2201/02 ,  Y10T29/49991

Abstract: A hot rolling installation should be constructed and able to be operated so that strips of materials, which can be shaped with different levels of difficulty and have a thickness of less than 1 mm, can be rolled. According to the invention, strip speeds of 15 m/sec should not be exceeded at the outlet of the last roll stand regardless of the material being used, and the hot-rolled strip should have austenitic structures. To this end, the invention provides that thin slab thicknesses of approximately 50 mm are used for easily shapeable material, that the first of seven stands is driven or executes only a smoothing pass, the slab is de-scaled in front of and behind the first stand, and that the second to seventh stand effects the reduction in thickness to less than 1 mm.

公开(公告)号：EP1326725A1

公开(公告)日：2003-07-16

申请号：EP01971506.9

申请日：2001-09-28

Applicant: NUCOR CORPORATION

Inventor： BLEJDE, Walter ,  MAHAPATRA, Rama Ballav ,  STREZOV, Lazar ,  MUKUNTHAN, Kannappar

IPC: B22D11/06 ,  B22D11/112 ,  B22D11/124 ,  B22D11/22

CPC classification number: B21B1/463 ,  B21B37/76 ,  B21B2201/02 ,  B22D11/0622 ,  B22D11/124 ,  C21D1/18 ,  C21D8/0215 ,  C21D8/0226 ,  C21D8/0263

Abstract: A plain carbon steel strip (12) is continuously cast in a twin roll caster (11) and passes to a run out table 17 on which it is subjected to accelerated cooling by means of cooling headers (18) whereby it is cooled to transform the strip from austenite to ferrite at a temperature range between 850 °C and 400 °C at a cooling rate of not less than 90 °C/sec, such that the strip has a yield strength of greater than 450MPa. The strip after casting and before cooling is passed through a hot rolling mill to reduce the thickness of strip by at least 15% and up to 50%.

公开(公告)号：EP1047510B1

公开(公告)日：2002-04-24

申请号：EP98962221.2

申请日：1998-11-03

Applicant: SMS Demag AG ,  Salzgitter AG

Inventor： WEHAGE, Harald ,  SKODA-DOPP, Ulrich ,  JACOBI, Horst

IPC: B21B1/26 ,  B21B1/46

CPC classification number: B21B1/463 ,  B21B1/26 ,  B21B2045/0212 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16 ,  B21B2273/08

Abstract: The invention relates to a method and installation for the continuous production of hot-rolled flat products made of a thin casting strip, comprising a casting machine (12) for producing a casting strip, a device for cooling the casting strip in the presence of a protective gas (2), a single-stand roughing train (3), a multiple-stand finishing train (5), a device (4) permitting a choice of cooling, heating or maintaining the temperature of the hot-rolled strip between the roughing train and finishing train (3, 5), shears (6) for separating the hot-rolled strip from coil to coil, a delivery roller table having devices for cooling (8, 9) the rolled hot strip and coiling machines (7, 10) mounted downstream from the production line for rolling up the finished strip.

公开(公告)号：EP0970256B1

公开(公告)日：2001-02-07

申请号：EP98912456.5

申请日：1998-03-07

Applicant: Thyssen Krupp Stahl AG

Inventor： PIRCHER, Hans ,  ESPENHAHN, Manfred ,  KAWALLA, Rudolf ,  WOLPERT, Waldemar

IPC: C21D8/02

CPC classification number: B21B1/26 ,  B21B1/46 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16 ,  C21D8/0226 ,  C21D8/0231

Abstract: The invention relates to a method for producing strips of non-alloy and low-alloy steel with homogeneous structures and properties by continuous hot-rolling, by passing several times in the austenite zone and then in the ferrite zone, as well as by reeling. The invention is characterized in that the steel strip that was continuously cast and/or rough rolled in the austenite zone is rolled by passing twice or more in the austenite zone, at a starting temperature T≥Ar3 +30 °C with a total strain of eh≥30 %. After each pass, the rolled product is intensively cooled until completion of the ferrite conversion. The rolled product is then subjected to final rolling by passing several times through the ferrite zone, with a total strain of en≥60 %, until a final thickness is obtained.

公开(公告)号：EP1007232A1

公开(公告)日：2000-06-14

申请号：EP97926273.0

申请日：1997-06-09

Applicant: HOOGOVENS STAAL B.V.

Inventor： CORNELISSEN, Marcus, Cornelis, Maria ,  GROOT, Aldricus, Maria ,  DEN HARTOG, Huibert, Willem

IPC: B21B1/46 ,  B21B1/26 ,  C21D8/02 ,  C21D8/04

CPC classification number: C21D8/0226 ,  B21B1/26 ,  B21B1/466 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16

Abstract: Method for the manufacture of a steel strip, whereby molten steel is cast in a continuous casting machine into a slab and, while making use of the casting heat, is conveyed through a furnace apparatus, is roughed in a roughing apparatus, and finish-rolled in a finishing apparatus into a steel strip of a desired finished thickness, whereby in an endless or semi-endless process a. for the manufacture of a ferritically rolled steel strip, the slab is rolled in the roughing apparatus in the austenitic range and after the rolling in the austenitic range is cooled to a temperature whereby the steel has essentially a ferritic structure, and the strip, the slab or a part of the slab is rolled in the finishing apparatus at speeds essentially corresponding to the entry speed into the finishing apparatus and the subsequent thickness reductions and in at least one stand of the finishing apparatus is rolled in the ferritic range; b. for the manufacture of an austenitically rolled steel strip, the strip leaving the roughing apparatus is heated to or held at a temperature in the austenitic range and is rolled in the finishing apparatus essentially in the austenitic range to the finished thickness and, following that rolling, is cooled down to a temperature in the ferritic range; and the ferritically or austenitically rolled strip after reaching the desired finished thickness is cut to portions of the desired length which are subsequently coiled.

公开(公告)号：EP0970256A1

公开(公告)日：2000-01-12

申请号：EP98912456.5

申请日：1998-03-07

Applicant: Thyssen Stahl Aktiengesellschaft

Inventor： PIRCHER, Hans ,  ESPENHAHN, Manfred ,  KAWALLA, Rudolf ,  WOLPERT, Waldemar

IPC: C21D8/02

CPC classification number: B21B1/26 ,  B21B1/46 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16 ,  C21D8/0226 ,  C21D8/0231

Abstract: The invention relates to a method for producing strips of non-alloy and low-alloy steel with homogeneous structures and properties by continuous hot-rolling, by passing several times in the austenite zone and then in the ferrite zone, as well as by reeling. The invention is characterized in that the steel strip that was continuously cast and/or rough rolled in the austenite zone is rolled by passing twice or more in the austenite zone, at a starting temperature T≥Ar3 +30 °C with a total strain of eh≥30 %. After each pass, the rolled product is intensively cooled until completion of the ferrite conversion. The rolled product is then subjected to final rolling by passing several times through the ferrite zone, with a total strain of en≥60 %, until a final thickness is obtained.

公开(公告)号：EP0889762B1

公开(公告)日：1999-10-27

申请号：EP97920581.2

申请日：1997-03-25

Applicant: MANNESMANN Aktiengesellschaft

Inventor： SCHÖNBECK, Joachim

IPC: B21B1/46 ,  B22D11/12 ,  C21D8/02

CPC classification number: C21D8/0215 ,  B21B1/26 ,  B21B1/463 ,  B21B28/04 ,  B21B31/10 ,  B21B45/004 ,  B21B45/0209 ,  B21B45/08 ,  B21B2201/02 ,  B21B2201/14 ,  B21B2265/06 ,  B21B2269/02 ,  C21D8/0226 ,  C21D9/46 ,  C21D2211/001

公开(公告)号：EP0937512A1

公开(公告)日：1999-08-25

申请号：EP99300895.2

申请日：1999-02-08

Applicant: Kvaerner Metals Continuous Casting Limited

Inventor： Silk, Nicholas James

IPC: B21B1/26 ,  B21B1/46 ,  B21B1/34

CPC classification number: B21B1/26 ,  B21B1/34 ,  B21B1/466 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16

Abstract: The invention relates to a method for the manufacture of light gauge steel strip comprising, sequentially, continually casting steel (1), cutting or shearing (2) the hot cast steel into slabs and charging into a furnace (3) which either reheats and/or homogenises the temperature and metallurgical quality of the material, descaling (4) the steel, and then reducing the steel in a roughing stand (5) and then rolling in a Steckel mill (7), or reducing directly in a Steckel mill (7) wherein the hot steel strip exits the Steckel mill (7) with a gauge of approximately 1 mm and is passed in tandem into a finishing mill (15). Zoned cooling units (14) are arranged between the Steckel mill (7) exit and the finishing mill to homogenise the temperature along the length and width of the strip and the cooling units may be adjusted to enable a wide range of entry temperatures of the strip to the finishing stand (15) such that the steel strip entering the finishing stand (15) may be in either the intercritical or ferritic phase.

Abstract translation: 本发明涉及用于轻型钢带的制造包含，顺序地，不断铸造钢（1），切割或剪切（2）的热铸钢成板坯并装入一个炉（3）其中或者再加热和方法/ 或homogenises温度和材料的冶金质量，除垢（4）的钢，然后还原钢在粗轧机架（5），然后轧制在Steckel碾机（7），或在Steckel碾机直接还原（7 ）worin的热轧钢带离开Steckel碾机（7）的大约1mm的规格和在串联被送入精轧机（15）。 划冷却单元（14）的Steckel碾机（7）的出口和精轧机以均化沿着长度和条带的宽度和冷却单元的温度之间布置可以被调整以使宽范围的带材的入口温度的 到精轧机（15）做了检查钢带进入精轧机架（15）可在任一帧间临界或铁素体相。

公开(公告)号：EP0919296A1

公开(公告)日：1999-06-02

申请号：EP97120406.0

申请日：1997-11-21

Applicant: SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT

Inventor： Rosenthal, Dieter ,  Kneppe, Günter, Dr. ,  Ladda, Dieter

IPC: B21B1/24 ,  B21B45/00 ,  C21D9/00 ,  F27B9/14

CPC classification number: C21D9/0081 ,  B21B1/24 ,  B21B1/26 ,  B21B1/34 ,  B21B45/004 ,  B21B2201/02 ,  F27B9/142 ,  F27B2009/3094

Abstract: Bestehende Warmbandstraßen mit einem Hubbalkenofen (1), einem diesem nachgeordneten Reversiergerüst (3) sowie einer folgenden Warmbandfertigstraße (6) zur Fertigung dünnen, austenitisch gewalzten Warmbandes sollen so nachgerüstet werden, daß das Warmband mit Dicken unter 1 mm gewalzt werden kann. Dazu wird vorgeschlagen, daß zwischen dem Reversiergerüst (3) und der Warmbandfertigstraße (6) ein Ausgleichsofen (7) vorgesehen wird, der durch eine Anzahl von Aufnahmeplätzen (8,8',..) für ausgleichend beheizbare Vorbänder eine Gesamtheizzeit für jedes Vorband sichert, die eine Mehrfaches der Walzzeit in der Warmbandfertigstraße (6) beträgt.

Abstract translation: 在反转辊架（3）和精热轧部（6）之间的温度均衡炉（7）降低最大速度和/或进一步减小带材厚度。 选择钢带的位置数（8），使得炉中每个批次的总时间是热轧部分的轧制时间的倍数。

公开(公告)号：EP0891826A1

公开(公告)日：1999-01-20

申请号：EP98112857.2

申请日：1998-07-11

Applicant: SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT

Inventor： Pleschiutschnigg, Fritz-Peter, Prof. Dr.

IPC: B22D11/00 ,  B22D11/06

CPC classification number: B21B1/463 ,  B21B9/00 ,  B21B13/22 ,  B21B41/08 ,  B21B2001/228 ,  B21B2001/383 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/18 ,  B22D11/008 ,  B22D11/0622

Abstract: Die Erfindung betrifft ein Verfahren zur Erzeugung von beschichteten Warm- oder Kaltprodukten, insbesondere von Stahlband. Das Verfahren wird dadurch verbessert, daß dünnes Band, insbesondere mittels einer Wanderkokille z.B. mittels eines Twin Rollers 1 nach Bessemer, gegossen wird und das gegossene Band 'online' als Mutterband in eine Inversionsgießanlage 25 zur Bandbeschichtung geführt wird, die Oberfläche des beschichteten Bandes mittels eines Glättwalzenpaares 18 geglättet wird und gegebenenfalls das beschichtete und geglättete Band 7 in einem Walzwerk 23 mit einem oder mehreren Walzgerüsten dickenreduziert wird.

Abstract translation: 特别是使用双辊工艺铸造薄带，并且在通过反转铸造装置的同时被涂覆成母带。 涂层表面通过轧制而平滑化。 通过热轧或冷轧来降低涂层带材的厚度。 成品的厚度为0.2-6mm，宽度为0.3-2μm。 该设备包括带有双辊（1）的带钢铸造设备，用于带材涂覆的在线转炉铸造设备（25），至少一个平滑辊对和用于减薄涂层钢带的轧制设备（23） 。