公开(公告)号：EP0870553A2

公开(公告)日：1998-10-14

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.

Abstract translation: 用于生产平板轧制产品的轧制方法，最终厚度在0.6 DIVIDED 1.5 mm或更高，最高2.0 DIVIDED 3.0 mm的范围内，适用于工作厚度高达25.4 mm的工厂， 该方法适用于厚度在50至90mm之间的板坯，如果从连续铸造机或厚度较大的板坯达到80至200DIVEDED 250mm的板坯，如果从炉子进料而积聚和加热 板坯（22），该方法包括至少包括至少三个还原道次的精轧机组（19）中的至少第一热处理，粗加工或预精加工通过，温度均衡处理和精加工过程，精加工通过被跟随 通过冷却和卷绕扁平成品的步骤，粗加工或预精加工出口处的产品处于奥氏体状态γ，在轧制线（10）中至少部分地在f 不规则的步骤或奥氏体步骤。 采用上述方法的轧制线，其中精轧机（19）与系统（24）配合以调节和调节板坯的温度。

公开(公告)号：EP0584605A1

公开(公告)日：1994-03-02

申请号：EP93112560.3

申请日：1993-08-05

Applicant: DANIELI & C. OFFICINE MECCANICHE S.p.A. ,  UNITED ENGINEERING, INC. ,  INTERNATIONAL ROLLING MILL CONSULTANTS, INC.

Inventor： Di Giusto, Bruno ,  Ginzburg, Vladimir B.

IPC: B21B1/46

CPC classification number: B21B1/26 ,  B21B1/34 ,  B21B1/466 ,  B21B45/004 ,  B21B2015/0057 ,  B21B2201/04

Abstract: The present invention relates to a compact rolling plant and method for using it to manufacture hot rolled metal strip. The rolling mill and method are capable of rolling both thick and thin slabs with minimum delays between slabs. The complete rolling of a bar or a strip below a critical transformation temperature range may be done at any speed without heat losses in unrolled portions of the strip or bar.

Abstract translation: 本发明涉及一种紧凑型轧制设备及其制造热轧金属带材的方法。 轧机和方法能够在板坯之间以最小的延迟滚动厚板和薄板。 在临界转变温度范围内的条或条的完全轧制可以以任何速度进行，而不会在条带或条的展开部分发生热损失。

公开(公告)号：EP0306076B1

公开(公告)日：1991-09-25

申请号：EP88201777.5

申请日：1988-08-19

Applicant: HOOGOVENS GROEP B.V.

Inventor： Den Hartog, Huibert Willem, Dr., Ir. ,  Van Perlstein, Erik Bernard

IPC: B21B1/46 ,  C21D8/04

CPC classification number: C21D8/0431 ,  B21B1/463 ,  B21B13/20 ,  B21B2201/04

公开(公告)号：EP0226446A3

公开(公告)日：1987-09-09

申请号：EP86309598

申请日：1986-12-10

Applicant: KAWASAKI STEEL CORPORATION

Inventor： Matsuoka, Saiji ,  Satoh, Susumu ,  Obara, Takashi ,  Tsunoyama, Kozo ,  Abe, Hideo

IPC: B21B01/46 ,  B21B01/26 ,  B21B01/34 ,  B21B01/28

CPC classification number: B21B1/46 ,  B21B1/28 ,  B21B1/34 ,  B21B1/40 ,  B21B9/00 ,  B21B2201/04 ,  B21B2261/20 ,  B21B2275/06 ,  C21D8/0226 ,  C21D8/0231 ,  C21D8/0263 ,  Y10T29/49991

Abstract: Thin steel sheets having an improved processability are produced when a steel sheet or cast strip obtained through a continuous casting or strip caster process is subjected to a lubrication rolling step at a temperature of from Ar₃ transformation point to 300°C and a rolling speed of not less than l,500 m/min. By this method, the cold rolling step or cold rolling-­annealing step can be omitted.

公开(公告)号：EP0194118A2

公开(公告)日：1986-09-10

申请号：EP86301469.2

申请日：1986-02-28

Applicant: KAWASAKI STEEL CORPORATION

Inventor： Satoh, Susumu c/o Technical Research Division ,  Matsuoka, Saiji c/o Technical Research Division ,  Obara, Takashi c/o Technical Research Division ,  Tsunoyama, Kozo c/o Technical Research Division ,  Irie, Toshio c/o Technical Research Division

IPC: C21D8/04 ,  C21D9/48

CPC classification number: C21D8/0426 ,  B21B2201/04 ,  C21D8/0431 ,  C21D8/0463

Abstract: A process for producing a formable thin steel sheet excellent in ridging resistance. Said process comprises finishing a low carbon steel at a strain rate of not less than 300 (s 1 ) in a temperature range of 800 to 300°C in at least one pass when the low carbon steel is rolled into a specified thickness, and subsequently performing recrystallization annealing.

公开(公告)号：EP0099520A2

公开(公告)日：1984-02-01

申请号：EP83106671.7

申请日：1983-07-07

Applicant: TIPPINS INCORPORATED

Inventor： Thomas, John Edward ,  Gretz, Ronald David ,  Tippins, George William

IPC: C21D8/02 ,  B21B1/26

CPC classification number: B21B1/32 ,  B21B1/26 ,  B21B1/34 ,  B21B1/38 ,  B21B37/74 ,  B21B2001/228 ,  B21B2045/006 ,  B21B2201/04 ,  B21B2201/06 ,  C21D8/0226 ,  C21D8/0231 ,  C21D8/0263 ,  C21D9/68

Abstract: A hot strip mill having a final reducing stand and runout cooling means downstream of the reducing stand includes an incubator capable of coiling and decoiling the hot strip. The incubator is located intermediate the runout cooling means. In a preferred form the final reducing stand is a hot reversing mill. A second incubator and/or a temper mill and/or a slitter may be positioned downstream of the first incubator. The method of rolling includes isothermally treating the strip within a predetermined time and temperature range in the incubator prior to subsequent processing. The subsequent processing may include any one or more of the following: further deformation by cold rolling, temper rolling or cooling at a desired heat loss rate.

公开(公告)号：EP1711868A1

公开(公告)日：2006-10-18

申请号：EP04805035.5

申请日：2004-12-27

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： FRANZ, Klaus ,  WEINZIERL, Klaus ,  BORCHERS, Wolfgang

IPC: G05B17/02 ,  B21B37/74

CPC classification number: G05B17/02 ,  B21B37/74 ,  B21B2201/04 ,  C21D11/005

Abstract: The present invention concerns a computer (4) which determines a subsequent state (ZF) of a steel volume (1), based on an instantaneous initial state (ZA) of said steel volume (1) and at least one volumetric surface, the temporary influence quantities (W) acting on said steel volume (1), by resolution of an equation of thermal conduction and phase change. The states (ZA; ZF) include for at least one volumetric element (9) of the steel volume (1), a local distribution in concentration (K) of a alloy element mobile in the steel, the local proportions (p1, p2, p3) of the modelled phases of the steel and a quantity (H) describing the local energy content of the steel. The phases comprise austenite and another phase, generally, ferrite or cementite. In the context of the change equation, the concentration levels (k1, k3; k2, k4) of the mobile alloy element, which are located on either side of the phase boundary (11, 12), between the austenite and the other phase are determined. Moreover, it is determined, by resolution of the Stephan problem, whether and how the distribution in concentration (K) of the mobile alloy element is modified in the austenitic zone of the volumetric element (9) observed and whether and to what extent (δx', δx') the phase boundary (11, 12) is thereby displaced. The proportions (p1, p2, p3) of phases are then determined based on the position of the limite phase (11, 12).

公开(公告)号：EP1121208B1

公开(公告)日：2003-01-22

申请号：EP99948880.2

申请日：1999-09-28

Applicant: ThyssenKrupp 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

公开(公告)号：EP1112129B1

公开(公告)日：2002-08-28

申请号：EP99969358.3

申请日：1999-09-14

Applicant: SMS Demag AG

Inventor： RUNDE, Wilfried ,  SKODA-DOPP, Ulrich

IPC: B21B38/12 ,  B21B37/28 ,  B21B37/62

CPC classification number: B21B37/62 ,  B21B1/46 ,  B21B37/28 ,  B21B38/12 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16

Abstract: The invention relates to a combined regulating system for producing defined product characteristics in the rolling of austentic, mixed austentic and ferritic and ferritic steel qualities, using a measuring method to determine the roll gap of a roll pair by detecting the absolute position of the work and back-up rolls on the side facing away from the roll gap by optical position measurement. The upper edge of the top roll or the lower edge of the bottom roll is detected relative to the absolute position of the rolls, in segments over the barrel length, by means of adjacent sensors situated along the roll. The measuring results are incorporated in a suitable regulating operation that influences the geometry of the roll gap and rolled stock using a model that takes into account the influences of the deflecting and roll adjusting systems, the deflection of the rolls, flattening between the rolls, flattening between the work roll and the rolled stock and the wear and thermal crowning of the rolls. In addition to the necessary absolute thickness, the regulating operation ensures that the necessary thickness profile and the flatness criteria are produced.

公开(公告)号：EP1228254A1

公开(公告)日：2002-08-07

申请号：EP00964323.0

申请日：2000-09-20

Applicant: USINOR SACILOR Société Anonyme

Inventor： FARAL, Michel ,  GUTTMANN, Michel ,  SCHMITT, Jean-Hubert ,  JUCKUM, Catherine ,  REGLE, Hélène

IPC: C21D8/04 ,  C22C38/00

CPC classification number: C21D8/0436 ,  B21B2201/04 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0431 ,  C22C38/04

Abstract: The invention concerns a method for making carbon steel bands, in particular packaging steel bands, which consists in: casting in the form of a thin steel band between 0.7 and 10 mm thick, directly from molten metal, steel having a composition adapted for use as packaging steel; hot rolling in-line said band, ending in the austenitic domain of said steel; forced cooling of said band at a speed of 80 to 400 °C/s ending in the ferritic domain of said steel; cold rolling said band at a reduction ratio of less than 85 % at least; and annealing said band. The invention also concerns a steel band, in particular for packaging, characterised in that it is obtainable by said above method.