公开(公告)号：US06616778B1

公开(公告)日：2003-09-09

申请号：US09555404

申请日：2000-07-06

Applicant: André Bodin

Inventor： André Bodin

IPC: C21D700

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

Abstract: A 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.

Abstract translation: 一种生产铁素体钢带的方法，其中将液态钢铸造在连续铸造机（1）中以形成板坯，并且利用铸造热量输送通过炉装置（7）进行初步轧制 预轧装置（10）和在最终轧制装置（14）中进行精轧，以形成具有期望最终厚度的铁素体钢带，其中以完全连续的无限循环或半无限制方式 ，在预轧装置（10）的奥氏体区域中轧制板坯，在奥氏体区域中轧制后，被冷却到钢基本上为铁素体结构的温度，并且在最终的轧制 滚动装置，其速度基本上对应于其进入最终滚动装置（14）的速度和随后的厚度减小阶段，并且在最终滚动装置（14）的至少一个支架中，钢带以铁素体 一个 温度在850℃至600℃之间，并且在离开最终轧制装置（14）之后，迅速冷却至低于500℃的温度，以便大体上避免重结晶。

公开(公告)号：US20020046824A1

公开(公告)日：2002-04-25

申请号：US09966184

申请日：2001-09-28

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

IPC: B22D011/06 ,  B21B001/46

CPC classification number: C21D8/0226 ,  B21B1/26 ,  B21B1/463 ,  B21B2201/04 ,  C21D8/0215 ,  C21D2211/005

Abstract: Steel strips and methods for producing steel strips are provided. In an illustrated embodiment, a method includes continuously casting molten low carbon steel into a strip and hot rolling the cast strip within a temperature range such that the strip passes through the Ar3 transformation temperature from austenite to ferrite under strain during rolling, thereby producing a strip having a yield strength above 400 Mpa and an elongation in excess of 30%. The cast steel strip has desired microstructures.

Abstract translation: 提供钢带和生产钢带的方法。 在图示的实施例中，一种方法包括将熔融的低碳钢连续铸造成带材，并在一定温度范围内热轧轧制钢带，使得钢带在轧制过程中在应变下通过Ar3相变温度从奥氏体转变为铁素体， 屈服强度高于400Mpa，伸长率超过30％。 铸钢带具有期望的微结构。

公开(公告)号：US06284069B1

公开(公告)日：2001-09-04

申请号：US09381892

申请日：1999-12-28

Applicant: Hans Pircher ,  Manfred Espenhahn ,  Rudolf Kawalla ,  Waldemar Wolpert

Inventor： Hans Pircher ,  Manfred Espenhahn ,  Rudolf Kawalla ,  Waldemar Wolpert

IPC: C21D802

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

Abstract: The invention relates to a process for producing strips of homogenous structures and characteristics made of non-alloyed and low-alloyed steel by continuous hot rolling in several roll passes in the austenitic region and subsequently in the ferritic region, as well as coiling. The invention is characterised in that continuous-cast strip and/or strip rough rolled in the austenitic region, starting with a temperature T≧Ar3+30° C., with a total degree of deformation of eh≧30% is rolled in two or several roll passes in the austenitic region and in that the rolling stock is intensively cooled after every roll pass until the ferritic transformation has been completed, after which the rolling stock is end rolled to final thickness in the ferritic range in several passes with a total degree of deformation eh≧60%.

Abstract translation: 本发明涉及一种通过在奥氏体区域中随后在铁素体区域中的多次辊道中的连续热轧以及卷绕来制造由非合金和低合金钢制成的均匀结构和特性的条带的方法。 本发明的特征在于，在温度T> = Ar 3 + 30℃，总变形度为> 30％的奥氏体区域粗轧的连续铸造带材和/或带材被轧制 在奥氏体区域中的两个或几个辊道，并且在每次轧制之后，将车辆集中冷却直到铁素体相变已经完成，然后在多次通过中将车辆端部轧制成铁素体范围的最终厚度， 总变形度eh> = 60％。

公开(公告)号：US06280542B1

公开(公告)日：2001-08-28

申请号：US09194948

申请日：1999-04-07

Applicant: Marcus Cornelis Maria Cornelissen ,  Aldricus Maria Groot ,  Huibert Willem Den Hartog

Inventor： Marcus Cornelis Maria Cornelissen ,  Aldricus Maria Groot ,  Huibert Willem Den Hartog

IPC: B21B146

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

Abstract: Method for the manufacture of a steel strip, wherein molten steel is cast into a slab, conveyed through a furnace, roughed in a roughing apparatus and finish-rolled in a finishing apparatus. The method comprises an endless or semi-endless process having either step a or step b, wherein a and b respectively comprise (a) manufacturing a ferritically rolled steel strip, wherein the slab is rolled in the roughing apparatus in the austenitic range and then cooled to a ferritic structure, and wherein the strip is rolled in the finishing apparatus at speeds essentially corresponding to the entry speed into the finishing apparatus, and (b) manufacturing an austenitically rolled steel strip, wherein the strip leaving the roughing apparatus is heated to the austenitic range and is rolled in the finishing apparatus and then cooled down to the ferritic range. In both step a and b, there is no material connection between the steel in the continuous casting machine and the steel being rolled in the finishing apparatus, and the strip is fed from the roughing apparatus to the finishing apparatus without intermediate storage. Additional steps include cutting the ferritically or austenitically rolled strip, after reaching the desired finished thickness, to portions of the desired length, and coiling the cut portions.

Abstract translation: 钢带的制造方法，其中将钢水铸造成板坯，通过炉子输送，在粗加工装置中粗糙化并在精加工装置中精轧。 该方法包括具有步骤a或步骤b的环形或半循环方法，其中a和b分别包括（a）制造铁素体钢带，其中将板坯在粗加工装置中在奥氏体范围内轧制，然后冷却 铁素体结构，并且其中带材在精加工设备中以基本对应于进入精加工设备的进入速度的速度轧制，和（b）制造奥氏体轧制钢带，其中离开粗加工设备的条带被加热到 奥氏体范围，并在整理设备中轧制，然后冷却至铁素体范围。 在步骤a和b中，连续铸造机中的钢和在精轧设备中被轧制的钢之间没有材料连接，并且条带从粗加工装置进给到精加工装置而没有中间储存。 另外的步骤包括在达到期望的最终厚度之后将铁素体或奥氏体轧制的钢带切割成所需长度的部分，并且切割切割部分。

公开(公告)号：US06109336A

公开(公告)日：2000-08-29

申请号：US983084

申请日：1998-10-23

Applicant: Cornelis Pronk ,  Huibert Willem Den Hartog

Inventor： Cornelis Pronk ,  Huibert Willem Den Hartog

IPC: B21B3/00 ,  B21B1/28 ,  B21B1/46 ,  B21B45/00 ,  C21D8/04 ,  C21D9/48

CPC classification number: B21B1/28 ,  B21B1/463 ,  C21D8/0426 ,  B21B2045/006 ,  B21B2201/04 ,  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, a low-carbon steel is provided in the form of a slab, the slab is rolled in the austenitic region to reduce its thickness to a transfer thickness, the rolled slab is cooled having the transfer thickness into the ferritic region, and the rolled slab is rolled 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%.

Abstract translation: PCT No.PCT / EP96 / 02875 Sec。 371 1998年10月23日第 102（e）1998年10月23日PCT PCT 1996年6月28日在制造钢带或板材时，适用于通过深拉和熨烫制造罐体的深拉伸钢，低碳 钢以板坯的形式提供，在奥氏体区域中轧制板坯以将其厚度减小到转移厚度，将具有转移厚度的轧制板坯冷却成铁素体区域，并且轧制的板坯在铁素体中轧制 区域到成品厚度。 为了提供在罐体制造中具有降低倾向的“钢”的钢，转印厚度小于1.8mm，并且从转印厚度到成品厚度的铁素体区域的总厚度减少小于90％。

公开(公告)号：US4583387A

公开(公告)日：1986-04-22

申请号：US660091

申请日：1984-10-12

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 ,  B21B45/02 ,  B21B9/00

CPC classification number: C21D8/0226 ,  B21B1/26 ,  B21B1/32 ,  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。

公开(公告)号：US20180078981A1

公开(公告)日：2018-03-22

申请号：US15562768

申请日：2016-03-16

Applicant: Nisshin Steel Co., Ltd.

Inventor： Takafumi KAWAGOE ,  Junichi KATSUKI

IPC: B21B1/22 ,  B21B3/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/16 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/40

CPC classification number: B21B1/22 ,  B21B3/02 ,  B21B2001/221 ,  B21B2001/228 ,  B21B2201/04 ,  B21B2261/04 ,  B21B2261/14 ,  C21D1/76 ,  C21D8/0236 ,  C21D8/0273 ,  C21D8/0294 ,  C21D9/46 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/34 ,  C22C38/40 ,  C23C8/02 ,  C23C8/10 ,  C23C8/18 ,  C23C8/60 ,  G11B33/08 ,  G11B33/14

Abstract: In a ferritic stainless steel sheet, the arithmetic average roughness Ra is 0.2 μm or more and 1.2 μm or less. In addition, the dull pattern transfer rate on the steel sheet surface is 15% or more and 70% or less. Furthermore, micropits with a depth of 0.5 μm or more and an open area of 10 μm2 or more which are formed on the steel sheet surface have an existing density of 10.0 or less per 0.01 mm2 and an open area ratio of 1.0% or less. In addition, a film formed on the steel sheet surface is constituted from an oxide containing SiO2 as a main constituent, which oxide contains at least Si, N, Al, Mn, Cr, Fe, Nb, Ti and O as film-forming elements other than C, wherein the Si content is 10 at % or more, and the N content is 10 at % or less.

公开(公告)号：US06773522B1

公开(公告)日：2004-08-10

申请号：US09555402

申请日：2000-08-14

Applicant: André Bodin ,  Thomas Martinus Hoogendoorn

Inventor： André Bodin ,  Thomas Martinus Hoogendoorn

IPC: C21D713

CPC classification number: B21B1/46 ,  B21B1/26 ,  B21B2201/02 ,  B21B2201/04 ,  B21B2201/16 ,  C21D1/185 ,  C21D8/021 ,  C21D8/0226 ,  C21D2211/002 ,  C21D2211/008

Abstract: A process and device for producing a high-strength steel strip. In the process, liquid steel is cast in at least one continuous-casting machine (1) with one or more strands to form a slab and, utilizing the casting heat, is conveyed through a furnace device (7). The slab undergoes preliminary rolling in a preliminary rolling device (10) and, in a final rolling device (14), is finishing-rolled to form a steel strip with the desired final thickness. In a continuous, endless or semi-endless process, the slab undergoes preliminary rolling in, essentially, the austenitic range in the preliminary rolling device (10) and, in the final rolling device (14), is rolled in the austenitic range or, in at lest one stand of the final rolling device (14), is rolled in the two-phase austenitic-ferritic range, the austenitic or austenitic, ferritic rolled strip. After leaving the final rolling device (14), the strip is cooled rapidly to obtain the desired structure.

Abstract translation: 一种用于生产高强度钢带的方法和装置。 在此过程中，液态钢用至少一根连续铸造机（1）铸成一根或多股，形成板坯，利用铸造热量将其输送通过炉装置（7）。 板坯在预轧装置（10）中进行预轧，并且在最终轧制装置（14）中进行精轧，以形成具有所需最终厚度的钢带。 在连续，无限或半循环的过程中，板坯基本上在预轧部件（10）中的奥氏体范围内进行初轧，并且在最终轧制装置（14）中，在奥氏体范围内轧制， 在最终轧制装置（14）的至少一个立场中，在奥氏体或奥氏体铁素体轧制带的两相奥氏体 - 铁素体范围内轧制。 在离开最终轧制装置（14）之后，快速冷却钢带以获得所需的结构。

公开(公告)号：US06533876B1

公开(公告)日：2003-03-18

申请号：US09331211

申请日：1999-09-03

Applicant: Marcus Cornelis Maria Cornelissen ,  Aldricus Maria Groot ,  Huibert Willem Den Hartog

Inventor： Marcus Cornelis Maria Cornelissen ,  Aldricus Maria Groot ,  Huibert Willem Den Hartog

IPC: C12D804

CPC classification number: B21B1/26 ,  B21B1/466 ,  B21B2201/04 ,  C21D8/0231

Abstract: Process for producing a steel strip or sheet, in which liquid steel is cast in a continuous-casting machine to form a thin plate and, while making use of the casting heat, is fed through a furnace device, is roughed in a roughing stand to a pass-over thickness and is rerolled in a finishing rolling stand to form a steel strip or sheet of the desired final thickness, in which (a) to produce a ferritically rolled steel strip, the strip, the plate or a part thereof is fed without interruption at least from the furnace device, at speeds which essentially correspond to the speed of entry into the roughing stand and the following reductions in thickness, from the roughing stand to a processing device which is disposed downstream of the finishing rolling stand, the strip coming out of the roughing stand being cooled to a temperature at which the steel has an essentially ferritic structure; (b) to produce an austenitically rolled steel strip, the strip coming out of the roughing roll is brought to or held at a temperature in the austenitic range, and in the finishing rolling stand it is rolled to the final thickness essentially in the austenitic field and is then cooled, after this rolling, to the ferritic field.

Abstract translation: 制造钢带或片材的方法，其中液态钢在连续铸造机中铸造以形成薄板，并且在使用铸造热的同时，通过炉装置进料，在粗轧机架中粗糙化 转印厚度并在精轧机中回转以形成所需最终厚度的钢带或片，其中（a）生产铁素体钢带，将带，板或其一部分进给 至少来自炉装置的速度，其速度基本上对应于进入粗加工台的速度和随后的粗加工的减小，其从粗轧台到位于精轧机组下游的处理装置，带材 从粗加工台出来冷却到钢基本上是铁素体结构的温度; （b）为了制造奥氏体轧制钢带，从粗轧辊出来的钢带被带到或保持在奥氏体范围内的温度，在精轧机构中，轧制至基本上在奥氏体场中的最终厚度 然后在该轧制之后冷却至铁素体场。

公开(公告)号：US06276437B1

公开(公告)日：2001-08-21

申请号：US09091516

申请日：1998-10-02

Applicant: Huibert Willem Den Hartog

Inventor： Huibert Willem Den Hartog

IPC: B22D1110

CPC classification number: B22D11/113 ,  B21B1/24 ,  B21B1/463 ,  B21B2201/04

Abstract: Continuous casting machine for the casting of a thin slab with a thickness of less than 150 mm comprising a vacuum tundish having a first atmospheric chamber (7) and a second low pressure or vacuum chamber (1) hydraulically connected to the first chamber and purging means (11) for introducing a purging gas into the liquid steel after it has entered the first chamber but before it entered the second chamber.

Abstract translation: 用于铸造厚度小于150mm的薄板坯的连续铸造机，包括具有液压连接到第一室的第一大气室（7）和第二低压或真空室（1）的真空中间包和清洗装置 （11），用于在吹入气体进入第一室之后但在其进入第二室之前将吹扫气体引入液态钢。