公开(公告)号：EP1037721B1

公开(公告)日：2003-11-12

申请号：EP98959304.1

申请日：1998-12-08

Applicant: Corus Staal BV

Inventor： BODIN, André

IPC: B21B1/46 ,  B21B1/26

CPC classification number: B21B1/466 ,  B21B1/26 ,  B21B2201/04

Abstract: Process for producing a ferritically rolled steel strip, in which liquid steel is cast in a continuous-casting machine (1) to form a slab and, utilizing the casting heat, is conveyed through a furnace device (7) undergoes preliminary rolling in a preliminary rolling device (10) and, in a final rolling device (14), is finishing-rolled to form the ferritic steel strip with a desired final thickness, in which process, in a completely continuous, an endless or a semi-endless process, the slab is rolled in the austenitic range in the preliminary rolling device (10) and, after rolling in the austenitic range, is cooled to a temperature at which the steel has a substantially ferritic structure, and the strip is rolled, in the final rolling device, at speeds which substantially correspond to the speed at which it enters the final rolling device (14) and the following thickness reduction stages, and in at least one stand of the final rolling device (14), the strip is ferritically rolled at a temperature of between 850 °C and 600 °C, and, after leaving the final rolling device (14), is cooled rapidly to a temperature below 500 °C in order substantially to avoid recrystallization.

公开(公告)号：EP0894037B1

公开(公告)日：2002-05-02

申请号：EP97906804.6

申请日：1997-02-18

Applicant: ThyssenKrupp Stahl AG

Inventor： BLÜMEL, Klaus ,  BEHR, Friedrich

IPC: B23K11/14 ,  B23K26/00 ,  E04C3/10 ,  F16S1/10

CPC classification number: B23K11/14 ,  B21B1/227 ,  B21B2045/006 ,  B21B2201/04 ,  B23K26/22

公开(公告)号：EP1015144B1

公开(公告)日：2002-04-10

申请号：EP96922895.6

申请日：1996-06-28

Applicant: Corus Staal BV

Inventor： PRONK, Cornelis ,  DEN HARTOG, Huibert, Willem

IPC: B21B1/46 ,  B21B1/28 ,  C21D8/04

CPC classification number: B21B1/28 ,  B21B1/463 ,  B21B2045/006 ,  B21B2201/04 ,  C21D8/0426 ,  C21D8/0431

Abstract: In the manufacture of steel strip or sheet, suitable for use as deep-drawing steel for the manufacture of can bodies by deep-drawing and ironing, there are performed the steps of (i) providing a low-carbon steel in the form of a slab, (ii) rolling the slab in the austenitic region to reduce its thickness to a transfer thickness, (iii) cooling the rolled slab having the transfer thickness into the ferritic region, (iv) rolling the rolled slab in the ferritic region to a finished thickness. To provide a steel having reduced tendency to "earing" in can body manufacture, the transfer thickness is less than 1.8 mm and the total thickness reduction in the ferritic region from the transfer thickness to the finished thickness is less than 90 %.

公开(公告)号：EP0761325B1

公开(公告)日：2001-11-28

申请号：EP96113056.4

申请日：1996-08-14

Applicant: SMS Demag AG

Inventor： Rohde, Wolfgang, Prof. Dr. ,  Albedyhl, Manfred

IPC: B21B1/26

CPC classification number: B21B1/26 ,  B21B1/28 ,  B21B1/466 ,  B21B2201/04

公开(公告)号：EP1056890B1

公开(公告)日：2001-08-29

申请号：EP99910250.2

申请日：1999-02-20

Applicant: Thyssen Krupp Stahl AG

Inventor： PIRCHER, Hans ,  KAWALLA, Rudolf ,  ESPENHAHN, Manfred ,  HAMMER, Brigitte ,  PETERS, Klaus ,  SCHNEIDER, Jürgen ,  WUPPERMANN, Carl-Dieter

IPC: C21D8/12

CPC classification number: C21D8/1222 ,  B21B2201/04 ,  B21B2201/16 ,  C21D8/1211 ,  C21D8/1233 ,  C22C38/02 ,  C22C38/04

Abstract: The invention relates to a method for producing non-grain oriented electro sheet steel out of continuously cast slabs or thin slabs with low magnetic loss, high polarisation and good mechanical properties. The invention is characterized in that the steel slabs are hot-rolled directly after casting or after reheating to a temperature ≥900 °C and in that during finishing rolling two or more deformation passes are carried out in the austenite/ferrite two-phase region.

公开(公告)号：EP1121208A1

公开(公告)日：2001-08-08

申请号：EP99948880.2

申请日：1999-09-28

Applicant: Thyssen Krupp Stahl AG

Inventor： KAWALLA, Rudolf ,  BEHR, Friedrich ,  SCHMITZ, Hans-Peter

IPC: B21B37/24 ,  B21B37/74 ,  B21B37/62

CPC classification number: B21B37/74 ,  B21B31/20 ,  B21B31/32 ,  B21B37/24 ,  B21B37/62 ,  B21B45/0233 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2205/02

Abstract: The invention relates to a method for producing tailored blanks by hot-rolling a strip, and to a device for carrying out the method. The tailored blanks to be cut to length from the rolled strip are obtained by cooling or heating the hot strip in sections, so that it experiences a different reduction in thickness in the individual sections whilst the roll force remains essentially constant, the sections having been given a different yield stress value due to the different temperature settings.

公开(公告)号：EP1037721A1

公开(公告)日：2000-09-27

申请号：EP98959304.1

申请日：1998-12-08

Applicant: Corus Staal BV

Inventor： BODIN, André

IPC: B21B1/46 ,  B21B1/26

CPC classification number: B21B1/466 ,  B21B1/26 ,  B21B2201/04

Abstract: Process for producing a ferritically rolled steel strip, in which liquid steel is cast in a continuous-casting machine (1) to form a slab and, utilizing the casting heat, is conveyed through a furnace device (7) undergoes preliminary rolling in a preliminary rolling device (10) and, in a final rolling device (14), is finishing-rolled to form the ferritic steel strip with a desired final thickness, in which process, in a completely continuous, an endless or a semi-endless process, the slab is rolled in the austenitic range in the preliminary rolling device (10) and, after rolling in the austenitic range, is cooled to a temperature at which the steel has a substantially ferritic structure, and the strip is rolled, in the final rolling device, at speeds which substantially correspond to the speed at which it enters the final rolling device (14) and the following thickness reduction stages, and in at least one stand of the final rolling device (14), the strip is ferritically rolled at a temperature of between 850 °C and 600 °C, and, after leaving the final rolling device (14), is cooled rapidly to a temperature below 500 °C in order substantially to avoid recrystallization.

公开(公告)号：EP0761326B1

公开(公告)日：2000-02-09

申请号：EP96113523.3

申请日：1996-08-23

Applicant: SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT

Inventor： Kneppe, Günter, Dr. ,  Rosenthal, Dieter ,  Krämer, Stephan

IPC: B21B1/34 ,  B21B1/26

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

公开(公告)号：EP0870553A3

公开(公告)日：1999-02-10

申请号：EP98101103.4

申请日：1998-01-23

Applicant: DANIELI & C. OFFICINE MECCANICHE S.p.A.

Inventor： Bobig, Paolo ,  Di Giusto, Bruno

IPC: B21B1/26 ,  B21B1/46

CPC classification number: C21D8/0226 ,  B21B1/24 ,  B21B1/26 ,  B21B1/32 ,  B21B1/466 ,  B21B2013/003 ,  B21B2015/0057 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/14

Abstract: Rolling method for thin flat products, used in the production of flat rolled products with a final thickness in the range of 0.6÷1.5 mm or more, up to 2.0÷3.0 mm, in a plant suitable to work thicknesses of up to 25.4 mm, the method being applied to slabs with a thickness of between 50 and 90 mm if arriving directly from the continuous casting machine or on slabs with a greater thickness, of between 80 and 200÷250 mm, if fed from a furnace to accumulate and heat the slabs (22), the method comprising at least a first heat treatment, a roughing or pre-finishing pass, a temperature equalisation treatment and a finishing pass in a finishing train (19) comprising at least three reduction passes, the finishing pass being followed by a step of cooling and coiling the flat finished product, the product at the outlet of the roughing or pre-finishing pass being in the austenitic state γ, the finishing pass taking place in the rolling line (10) at least partly in the ferritic step or in the austenitic step, as desired.
Rolling line adopting the method as above, wherein the finishing train (19) cooperates with a system (24) to condition and adjust the temperature of the slab.

公开(公告)号：EP0875304A2

公开(公告)日：1998-11-04

申请号：EP98107703.5

申请日：1998-04-28

Applicant: SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT

Inventor： Meyer, Meinert, Dipl.-Ing. ,  Plociennik, Uwe, Dipl.-Ing.

IPC: B21B45/02

CPC classification number: B21B45/0218 ,  B21B2201/04 ,  C21D1/62 ,  C21D9/573

Abstract: Die Erfindung betrifft ein Verfahren zum Kühlen von walzwarmem Walzgut (1), insbesondere zum beidseitigen Kühlen von Warmbreitband, bei dem eine Zwangskonvektion beim Wärmeaustausch zwischen Walzgut (1) und Kühlmedium mit Hilfe einer Druckwasserströmung in einem Druckraum (10) und Konvektionsraum (13) vorgenommen und das Walzgut (1) durch gezieltes Steuern der Intensität der Zwangskonvektion gekühlt wird. Das Verfahren wird dadurch verbessert, daß die Intensität der Zwangskonvektion durch relative Abstimmung voneinander unabhängig einstellbarer Parameter wie Verweilzeit des Walzgutes (1) beim Durchlauf durch den Druckraum (10) und durch den Konvektionsraum (13) sowie Menge, Druck und Strömungsgeschwindigkeit des Kühlmediums gesteuert und von diesem Wärme aus dem Walzgut (1) bevorzugt bis zu einem Sicherheitsabstand zum Siedepunkt zur Vermeidung der instabilen Filmverdampfung aufgenommen wird. Die Erfindung beschreibt auch eine Vorrichtung zur Durchführung des Verfahrens.

Abstract translation: 本发明涉及一种方法，用于冷却轧制热轧金属（1），特别是对在其中（13）由在辊轧件之间的热交换的强制对流（1）和由在压力空间中的加压水的流动（10）和对流空间的装置的冷却介质的热轧钢带的双面冷却 和机车车辆（1）通过选择性地控制强制对流的强度进行冷却。 该方法的改进之处在相对于投票独立可调的参数，例如通过压力室（10）和对流空间（13）通过时的辊轧件（1）的停留时间的强制对流的强度以及量，压力和流动的冷却介质的速度控制和 从轧制热从其（1），优选添加到从所述沸点的安全距离，以避免不稳定的膜蒸发。 本发明还描述了一种用于执行该方法的装置。