公开(公告)号：US06503339B1

公开(公告)日：2003-01-07

申请号：US09622604

申请日：2000-11-07

Applicant: Hans Pircher ,  Rudolf Kawalla ,  Manfred Espenhahn ,  Brigitte Hammer ,  Klaus Peters ,  Jürgen Schneider ,  Carl-Dieter Wuppermann

Inventor： Hans Pircher ,  Rudolf Kawalla ,  Manfred Espenhahn ,  Brigitte Hammer ,  Klaus Peters ,  Jürgen Schneider ,  Carl-Dieter Wuppermann

IPC: H01F1147

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

Abstract: The invention relates to a method to produce non-grain-oriented magnetic steel sheet made of thin-slab or slab casting with low specific total loss and high polarisation and favourable mechanical properties. It is a characteristic of the invention that the steel slabs are hot rolled either directly from the casting heat or after a reheating to T≧900 ° C. and two or more metal forming passes are performed in the two-phase region austenite/ferrite in the course of finishing rolling.

Abstract translation: 本发明涉及一种制造薄板坯或板坯铸造的非晶粒取向电磁钢板的方法，该薄板坯或板坯铸件具有低的总损耗和高极化性以及良好的机械性能。 本发明的特征在于，钢坯从铸造热直接或热再加热至T> = 900℃热轧，并且在两相区奥氏体/铁素体中进行两次以上的金属成形 在整理轧制过程中。

公开(公告)号：US20020062942A1

公开(公告)日：2002-05-30

申请号：US09968424

申请日：2001-10-01

Inventor： Lazar Strezov ,  Kannappar Mukunthan ,  Walter Blejde ,  Rama Mahapatra

IPC: B22D011/16 ,  B22D011/06

CPC classification number: C21D8/0226 ,  B21B1/26 ,  B21B1/463 ,  B21B37/76 ,  B21B45/0233 ,  B21B2201/02 ,  B21B2201/04 ,  B22D11/0622 ,  B22D11/124 ,  B22D11/16 ,  B22D11/225 ,  C21D1/18 ,  C21D8/0215 ,  C21D8/0263 ,  C21D9/573 ,  C21D2211/005

Abstract: A method of controlling a continuous steel strip casting process based on customer-specified requirements includes a general purpose computer in which product specifications of steel product ordered by a customer is entered. The computer is configured to automatically map the product specifications to process parameters/set points for controlling the continuous steel strip casting process in a manner to produce the customer ordered product, and in one embodiment produces a process change report detailing such process parameters/set points for operator use in physically implementing such process parameters/set points in the strip casting process. Alternatively, the computer may provide the process parameters/set points directly to the strip casting process for automatic control thereof in producing the customer ordered steel product. The process of the present invention is capable of substantially reducing the time between a customer request for a steel product and delivery thereof over that of conventional steel manufacturing processes.

Abstract translation: 根据客户指定的要求控制连续钢带铸造过程的方法包括进入客户订购的钢产品的产品规格的通用计算机。 计算机被配置为以产生客户订购产品的方式自动地将产品规格映射到用于控制连续钢带铸造过程的工艺参数/设定点，并且在一个实施例中产生详细描述这些工艺参数/设定点的过程变化报告 用于操作者在物料实施条带铸造过程中的这些工艺参数/设定点。 或者，计算机可以将工艺参数/设定点直接提供给带材铸造过程，以便在生产客户订购的钢产品时进行自动控制。 本发明的方法能够大大减少客户对钢铁产品的要求与其传送之间的时间超过常规钢铁制造工艺的时间。

公开(公告)号：US6149740A

公开(公告)日：2000-11-21

申请号：US59327

申请日：1998-04-13

Applicant: Wilfried Bald ,  Dieter Rosenthal

Inventor： Wilfried Bald ,  Dieter Rosenthal

IPC: B21B1/46 ,  C21D5/00

CPC classification number: B21B1/466 ,  B21B2201/04

Abstract: A method of and apparatus for manufacturing hot-rolled steel strips from a continuously cast primary material, preferably thin slabs, in a plurality of successive steps in a continuous operation is disclosed. In the invention, thin slabs, which leave an equalizing furnace, are heated above the maximum temperature that can be achieved in the equalizing furnace and are thereafter are broken down in a break-down train, with the broken-down thin slabs being subsequently recrystallized and cooled down to a rolling temperature before being finish-rolled in the finishing train.

Abstract translation: 公开了一种在连续操作中的多个连续步骤中从连铸第一材料（优选薄板）制造热轧钢带的方法和装置。 在本发明中，将均热炉的薄板加热到均压炉中可达到的最高温度之上，然后在分解炉中分解，随后将破碎的薄板随后重结晶 并在精整列车中精轧前冷却至轧制温度。

公开(公告)号：US6053996A

公开(公告)日：2000-04-25

申请号：US981612

申请日：1998-04-15

Applicant: Cornelis Pronk ,  Huibert Willem Den Hartog ,  Marcus Cornelis Maria Cornelissen

Inventor： Cornelis Pronk ,  Huibert Willem Den Hartog ,  Marcus Cornelis Maria Cornelissen

IPC: B21B1/00 ,  B21B1/34 ,  B21B1/46 ,  B21B9/00 ,  C21D1/76 ,  C21D8/02 ,  C21D8/04 ,  C21D9/00 ,  C21D9/46 ,  C21D9/68 ,  C21D1/09

CPC classification number: B21B1/463 ,  C21D8/0426 ,  C21D9/0081 ,  C21D9/68 ,  B21B1/34 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16 ,  B21B9/00 ,  C21D1/76

Abstract: A method for the manufacture of a strip of formable steel comprises the steps of (i) forming liquid steel by continuous casting into a slab having a thickness of not more than 100 mm, (ii) rolling the slab in the austenitic region into an intermediate slab having a thickness in the range 5 to 20 mm, (iii) cooling the intermediate slab to below the Ar.sub.3 temperature, (iv) holding the intermediate slab in an enclosure for temperature homogenisation, (v) rolling the intermediate slab into strip, with at least one rolling pass applying a thickness reduction of more than 50%, at a temperature below T.sub.t and above 200.degree. C., wherein T.sub.t is the temperature at which 75% of the steel is converted into ferrite, and (vi) coiling said strip at a temperature above 500.degree. C. Advantages of simplicity of the method and the plant required for it are obtained.

Abstract translation: PCT No.PCT / EP96 / 02874 Sec。 371日期：1998年4月15日 102（e）1998年4月15日PCT PCT 1996年6月28日PCT公布。 公开号WO97 / 01402 日本1997年1月16日制造可成形钢带的方法包括以下步骤：（i）通过连续铸造形成液态钢至厚度不大于100mm的板坯，（ii）在 奥氏体区域变成厚度在5至20mm的中间板坯，（iii）将中间板坯冷却至低于Ar 3温度，（iv）将中间板坯保持在用于温度均化的外壳中，（v） 在低于Tt和高于200℃的温度下，将至少一个轧制通道施加大于50％的厚度减少，其中Tt是钢的75％转化为铁素体的温度，以及 （vi）在高于500℃的温度下卷绕所述条带。获得方法和所需植物简单性的优点。

公开(公告)号：US5910184A

公开(公告)日：1999-06-08

申请号：US907388

申请日：1997-08-07

Applicant: Gunter Kneppe ,  Dieter Rosenthal ,  Stephan Kramer

Inventor： Gunter Kneppe ,  Dieter Rosenthal ,  Stephan Kramer

IPC: B21B1/32 ,  B21B1/26 ,  B21B1/34 ,  B21B1/46 ,  C21D9/52 ,  C21D9/68 ,  B21B27/06 ,  B21B41/06

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

Abstract: A production plant for producing hot-rolled flat products includes a rolling train composed of a plurality of roll stands, a run-out table with devices for cooling the hot strip, and with subsequently arranged coiling machines for coiling the strip. At least the first roll stand of the rolling train is a reversing stand. At least one reeling furnace each is arranged in front of and following the reversing stand. A controllable cooling unit is provided between the reversing stand and the reeling furnace in front of the reversing stand.

Abstract translation: 用于生产热轧扁平产品的生产设备包括由多个辊架组成的轧制组，具有用于冷却热轧带材的装置的排出台，以及用于卷绕带材的随后布置的卷取机。 至少轧制列车的第一轧机架是倒车架。 每个至少一个卷取炉布置在换向架的前面和后面。 可逆冷却单元设置在换向架和翻转架前面的卷取炉之间。

公开(公告)号：US5329688A

公开(公告)日：1994-07-19

申请号：US971846

申请日：1993-01-08

Applicant: Giovanni Arvedi ,  Giovanni Gosio

Inventor： Giovanni Arvedi ,  Giovanni Gosio

IPC: B21B20060101 ,  B21B1/24 ,  B21B1/46 ,  B22D11/12 ,  B22D11/14 ,  C21D8/02

CPC classification number: B21B1/24 ,  B21B1/463 ,  C21D8/0226 ,  B21B2201/04 ,  B21B2201/14 ,  C21D8/021 ,  C21D8/0215 ,  C21D8/0231 ,  C21D8/0236 ,  Y10S29/032 ,  Y10T29/4517 ,  Y10T29/49991 ,  Y10T29/5184

Abstract: A process for obtaining steel strip coils with characteristics of a cold-rolled product, directly in a hot-rolling line, comprises subsequently to steps of casting and thickness reduction at a temperature of more than 1100.degree. C. upon solidification, induction heating of the product and a further step of hot rolling, above point Ar.sub.3, a step of cooling and temperature control in a range of between 600.degree. and 250.degree. C., thus lower than said point Ar.sub.3, as well as one or more passes of cold-rolling in series, with final coiling of the obtained product. Also a preferred plant is described for putting into practice such a process.

Abstract translation: PCT No.PCT / IT91 / 00057 Sec。 371日期：1993年1月8日 102（e）日期1993年1月8日PCT PCT 1991年7月5日PCT公布。 出版物WO92 / 00815 日本1992年1月23日。一种直接在热轧生产线中获得具有冷轧产品特性的钢带卷材的方法包括随后在1100℃以上的温度下进行铸造和厚度还原的步骤。 在固化后，产品的感应加热和再次热轧的步骤，高于点Ar3，冷却和温度控制步骤在600℃至250℃的范围内，因此低于所述点Ar3，以及 一次或多次连续冷轧，最终卷取所得产品。 还描述了一种优选的设备来实施这样一个过程。

公开(公告)号：US5200005A

公开(公告)日：1993-04-06

申请号：US652872

申请日：1991-02-08

Applicant: Abbas Najah-Zadeh ,  John J. Jonas ,  Stephen Yue

Inventor： Abbas Najah-Zadeh ,  John J. Jonas ,  Stephen Yue

IPC: C21D8/00 ,  C21D8/02

CPC classification number: C21D8/0231 ,  C21D8/00 ,  B21B2201/04 ,  C21D2211/005 ,  C21D8/0226

Abstract: The strength of interstitial free steels is increased by up to 100% and the ductile to brittle transition temperature is decreased by up to 100.degree. C. by warm finish rolling in the single phase ferrite region below A.sub.rl to effect ferrite dynamic recrystallization of the steel microstructure to a ferrite structure of grain size having a grain size of up to 5 .mu.m, and especially an ultra fine grain size of 1 to 2 .mu.m; the method may be employed in various hot working methods including strip and rod mills, planetary hot rolling and extrusion.

Abstract translation: 无间隙钢的强度提高高达100％，延性至脆性转变温度通过在Arl以下的单相铁素体区域中的热精轧降低高达100℃，以实现钢微观结构的铁素体动态再结晶 涉及粒径高达5μm的粒径的铁素体结构，特别是1〜2μm的超细晶粒度; 该方法可以用于各种热加工方法，包括带钢和棒磨机，行星式热轧和挤压。

公开(公告)号：US5042564A

公开(公告)日：1991-08-27

申请号：US438040

申请日：1989-11-20

Applicant: Erik B. Van Perlstein ,  Robert F. Gadellaa ,  Huibert W. Den Hartog

Inventor： Erik B. Van Perlstein ,  Robert F. Gadellaa ,  Huibert W. Den Hartog

IPC: B21B1/38 ,  B21B1/46 ,  B21B3/00 ,  C21D8/02 ,  C21D8/04 ,  C21D9/46 ,  C21D9/48

CPC classification number: C21D8/0431 ,  B21B1/463 ,  B21B2001/383 ,  B21B2201/04 ,  C21D8/0426 ,  C21D8/0463 ,  C21D8/0478

Abstract: In the manufacture of formable steel in the form of a strip with a final thickness of between 0.5 and 1.5 mm, in a number of continuous successive process stages, molten steel is continuously cast into a slab of less than 100 mm thickness and the slab is rolled into the strip. To simplify the apparatus required, and improve process control, the slab is cooled down to a rolling temperature of between 300.degree. C. and a temperature T.sub.t at which at least 75% of the material is converted into ferrite, and the rolling of the slab into strip comprises at least one reduction stage with a thickness reduction of over 30%. The rolling exit speed is less than 1000 m/min. After recrystallization, the strip is coiled.

公开(公告)号：US4840051A

公开(公告)日：1989-06-20

申请号：US55945

申请日：1987-06-01

Applicant: Francisco Boratto ,  Stephen Yue ,  John J. Jonas

Inventor： Francisco Boratto ,  Stephen Yue ,  John J. Jonas

IPC: B21B1/26 ,  B21B1/32

CPC classification number: B21B1/32 ,  B21B1/26 ,  B21B2201/04 ,  B21B2265/22 ,  Y10T70/375

Abstract: A series of thermomechanical workings such as temperature-controlled torsional strains are applied to a specimen of steel at strain and temperature levels and interpass times selected to simulate rolling mill conditions. The measured stress values are compared with the temperatures of the steel during the working periods during which the respective values were obtained. Thermomechanical working schedules are repeated at selected varying starting and terminating temperatures thereby to obtain a series of possible rolling schedules. These simulations are selected so that a varying number of reduction passes in the sequence occur at steel temperatures below temperature A.sub.r3. The value of a selected parameter of the worked steel, e.g. yield strength, is measured at ambient temperature. From the rolling mill analogue of possible rolling schedule simulations, an optimized rolling schedule is selected which will predictably impart to the steel a value of the selected parameter falling within a predetermined range. Linear regression analysis is applied to empirically obtained rolling mill data to derive one or more linear relationships between a selected property (e.g. yield strength) of the steel and rolling mill parameters thereby to permit selection of an optimum rolling schedule suitable to obtain a preselected value of the selected property of the steel.

Abstract translation: 将温度控制的扭转应变的一系列热机械工作应用于钢的样品的应变和温度水平以及所选择的插层时间以模拟轧机条件。 将测量的应力值与获得各个值的工作期间的钢的温度进行比较。 在选择的变化的起始和终止温度下重复热机械工作时间表，从而获得一系列可能的轧制时间表。 选择这些模拟，使得在低于温度Ar 3的钢温度下，顺序发生不同数量的还原。 加工钢的选定参数的值，例如 屈服强度，在环境温度下测量。 从可能的轧制计划模拟的轧机模拟中，选择优化的轧制计划，其可预测地赋予钢所选参数的值落在预定范围内。 线性回归分析被应用于经验获得的轧机数据以导出钢的选定性质（例如屈服强度）与轧机参数之间的一个或多个线性关系，从而允许选择适于获得预定值 钢的选定属性。

公开(公告)号：US4537643A

公开(公告)日：1985-08-27

申请号：US629579

申请日：1984-07-11

Applicant: John E. Thomas ,  Ronald D. Gretz ,  George W. Tippins

Inventor： John E. Thomas ,  Ronald D. Gretz ,  George W. Tippins

IPC: B21B1/22 ,  B21B1/26 ,  B21B1/32 ,  B21B1/34 ,  B21B1/38 ,  B21B45/00 ,  C21D8/02 ,  C21D9/68

CPC classification number: B21B1/26 ,  B21B1/32 ,  C21D8/0226 ,  B21B1/34 ,  B21B1/38 ,  B21B2001/228 ,  B21B2045/006 ,  B21B2201/04 ,  B21B2201/06 ,  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.

Abstract translation: 具有最终还原架和脱水冷却装置的热轧带钢轧机在还原架的下游包括能够卷取和解卷热轧带的培养箱。 孵化器位于跳动冷却装置的中间。 在优选的形式中，最终的还原台是热反转轧机。 第二培养箱和/或回火磨机和/或分切机可以位于第一培养箱的下游。 轧制方法包括在随后的处理之前在培养箱中的预定时间和温度范围内等温处理条带。 后续处理可以包括以下任何一个或多个：通过冷轧进行进一步的变形，回火轧制或以期望的热损失率冷却。