公开(公告)号：JP2010000544A

公开(公告)日：2010-01-07

申请号：JP2009231150

申请日：2009-10-05

Applicant: Nucor Corp ,  ニューコア・コーポレーション

Inventor： BLEJDE WALTER ,  MAHAPATRA RAMA BALLAV

IPC: B21B1/46 ,  B22D11/06 ,  B22D11/12 ,  B22D11/16 ,  B22D11/18 ,  B22D11/20

CPC classification number: B22D11/16 ,  B22D11/0622

Abstract: PROBLEM TO BE SOLVED: To produce a strip having the customer-specified characteristic by using single roll profiles for casting rolls of a substantially constant throughput, producing the extensively different cast strip thickness, maintaining a predetermined as-cast fine structure in a cast strip, and performing the decoration-control as expected firmly by the subsequent cooling system.
SOLUTION: In a twin roll strip caster, by determining a target depth of the casting pool and a target speed of the casting rolls to operate at them, the thickness of the as-cast strip is controlled. The as-cast strip may be cast to the customer-specified thickness or may be subsequently rolled to a customer-specified thickness.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了通过使用具有基本恒定生产量的铸辊的单辊轮廓来生产具有顾客指定特性的条带，产生广泛不同的铸造带材厚度，将预定的铸态精细结构保持在 铸钢带，并按照预期的顺序进行后续冷却系统的装饰控制。 解决方案：在双辊式连铸机中，通过确定铸造池的目标深度和铸造辊的目标速度在其上运行，控制铸钢带的厚度。 铸钢带可以铸造成客户指定的厚度，或者可以随后轧制成客户指定的厚度。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：KR20180021904A

公开(公告)日：2018-03-05

申请号：KR20187004792

申请日：2009-08-05

Applicant: NUCOR CORP

Inventor： SCHLICHTING MARK ,  BLEJDE WALTER N ,  SCHUEREN MIKE ,  MAHAPATRA RAMA BALLAV

IPC: B22D11/06 ,  B22D11/16

CPC classification number: B22D11/0622 ,  B22D11/16

Abstract: 반대로회전하는캐스팅롤들의 80 밀리미터이하의두께의원통형관 두께부분을통해길이방향으로배치된물 유동통로들을통해흐르는물의온도를조절함으로써, 그리고캐스팅공정기간중 센서들로부터수신된전기신호들에응답하여캐스팅롤 구동시스템으로써캐스팅롤들의단부들의감쇠에따라캐스팅롤들의속도를변화시킴으로써롤의캐스팅표면의형상을동적으로제어하는박판스트립을연속으로주조하는방법.

Abstract translation: 通过控制流经纵向水流通道的水的温度，以不大于80毫米的反向旋转铸辊的圆柱管厚度连续铸造薄带，从而动态地控制铸造辊表面形状，并且改变铸件的速度 通过铸造辊驱动系统对浇铸辊端部的衰减进行辊压，以响应铸造过程中从传感器接收到的电信号。

公开(公告)号：WO03055623A9

公开(公告)日：2003-11-20

申请号：PCT/AU0201736

申请日：2002-12-20

Applicant: NUCOR CORP ,  BLEJDE WALTER ,  MAHAPATRA RAMA BALLAV

Inventor： BLEJDE WALTER ,  MAHAPATRA RAMA BALLAV

IPC: B22D11/16 ,  B22D2/00 ,  B22D11/055 ,  B22D11/06 ,  B22D11/128 ,  B22D11/20 ,  B22D11/22

CPC classification number: B22D11/0682 ,  B22D11/20

Abstract: A model-based strategy is provided for determining casting roll operating temperature in a continuous thin strip casting process. A first temperature sensor produces a first temperature signal indicative of the temperature of cooling liquid supplied to the casting rolls and a second temperature sensor produces a second temperature signal indicative of the temperature of cooling liquid temperature exiting the casting rolls. A computer determines a heat flux value as a function of the first and second temperature signals, and computes the operating temperature of the casting rolls as a function of the heat flux value, the second temperature signal and a number of constants defined by fixed-valued operating parameters of the continuous thin strip casting process. A control strategy is also provided to modify one or more operating parameters of the continuous thin strip casting process as a function of the casting roll temperature.

Abstract translation: 提供了一种基于模型的策略，用于在连续薄带铸造工艺中确定铸辊工作温度。 第一温度传感器产生指示供应到铸辊的冷却液体的温度的第一温度信号，第二温度传感器产生指示离开铸辊的冷却液体温度的温度信号。 计算机确定作为第一和第二温度信号的函数的热通量值，并且根据热通量值，第二温度信号和由固定值定义的常数的数量来计算铸辊的工作温度 连续薄带铸造工艺的工作参数。 还提供控制策略来修改作为铸辊温度的函数的连续薄带铸造工艺的一个或多个操作参数。

公开(公告)号：WO2010000034A8

公开(公告)日：2011-02-03

申请号：PCT/AU2009000860

申请日：2009-07-02

Applicant: BLUESCOPE STEEL LTD ,  IHI CORP ,  NUCOR CORP ,  DIXON ANDREW EDWARD ,  MCQUILLIS GARY ,  MAHAPATRA RAMA BALLAV ,  WOLLEY LEIGH

Inventor： DIXON ANDREW EDWARD ,  MCQUILLIS GARY ,  MAHAPATRA RAMA BALLAV ,  WOLLEY LEIGH

IPC: B22D11/06 ,  B22D11/16

CPC classification number: B22D11/0622 ,  B21B1/463 ,  B22D11/1206 ,  B22D11/14

Abstract: An apparatus for continuously casting thin strip includes a caster having a pair of casting rolls having a nip there between capable of delivering cast strip downwardly from the nip and an first enclosure capable of forming a protective atmosphere into which the strip can be formed in loop to extend over a plurality of rollers into pinch rolls with the strip having a strain of less than 0.4 %, which may be provided by a plurality of rollers at entry of the strip into the pinch rolls to carry the strip into the pinch rolls, with at least a first entry roller having a diameter between 200 and 650 millimeters and being below a majority of other rollers.

Abstract translation: 用于连续铸造薄带的装置包括具有一对铸辊的脚轮，其具有能够从辊隙向下输送铸造带的第一外壳和能够形成环状的保护气氛的第一外壳 在多个辊子上延伸到夹送辊中，带材具有小于0.4％的应变，其可以由条带进入夹送辊中的多个辊子提供，以将带材带入夹送辊中，其中在 至少一个直径在200和650毫米之间并且低于其它辊的大部分的第一进入辊。

公开(公告)号：EP2178660A4

公开(公告)日：2015-03-18

申请号：EP08782912

申请日：2008-08-12

Applicant: NUCOR CORP

Inventor： OTSUKA HIROYUKI ,  YAMANE KOSHIRO ,  TERASAKI SATOSHI ,  SCHLICHTING MARK ,  MAHAPATRA RAMA BALLAV ,  SOSINSKY DAVID J

IPC: B22D11/00 ,  B22D11/06 ,  C22C38/00

CPC classification number: B22D11/0622 ,  C22C38/00 ,  Y10T428/12

Abstract: A thin cast steel strip and method of making thereof with improved resistance to microcracking, where the steel strip is produced by continuous casting and contains a carbon content between about 0.010% and about 0.065% by weight, less than 5.0% by weight chromium, at least 70 ppm of total oxygen and between 20 and 70 ppm of free oxygen, and manganese to sulfur ratio greater than about 250. The carbon content in the cast strip may be below about 0.035%, less than 0.005% by weight titanium, and the average manganese to silicon ratio in the strip produced may be greater than 3.5. The carbon content may be less than 0.035%, the casting speed less than 76.68 meters per minute, and the tundish temperature of the molten metal is maintained below 1612° C. (2933.7° F.).

Abstract translation: 一种薄铸钢带及其制造方法，具有改进的耐微裂纹性能，其中钢带通过连续铸造生产，并且含有碳含量为约0.010％至约0.065重量％，小于5.0重量％的铬，在 至少70ppm的总氧气和20-70ppm的游离氧，以及锰与硫的比例大于约250.铸造带材中的碳含量可以低于约0.035％，小于0.005重量％的钛，和 所生产的带材中的平均锰/硅比可以大于3.5。 碳含量可以小于0.035％，铸造速度小于76.68米/分钟，熔融金属的中间包温度保持在1612℃以下（2933.7°F）。

公开(公告)号：EP1439926A4

公开(公告)日：2004-11-03

申请号：EP02766948

申请日：2002-09-13

Applicant: NUCOR CORP

Inventor： BLEJDE WALTER ,  MAHAPATRA RAMA BALLAV ,  STREZOV LAZAR

IPC: B22D11/06 ,  B22D1/00 ,  B22D11/00 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06

CPC classification number: B22D11/0622 ,  C22C38/02 ,  C22C38/04

Abstract: Twin roll casting of thin steel strip. Molten steel is introduced between a pair of cooled casting rolls to form a casting pool from which steel solidifies on the rolls to produce a solidified strip. The molten steel has a total oxygen content in the range 100ppm to 250ppm and contains metal oxide inclusions comprising any one or more of MnO, SiO2 and Al2O3 distributed throughout the steel at an inclusion density in the range 2gm/cm3 to 4gm/cm3. Typically the inclusions range in size between 2 and 12 microns. The cast strip has a thickness of less than 5mm and contains solidified metal oxide inclusions distributed such that the regions of the strip contain solidified inclusions to a per unit area density of at least 120 inclusions/mm2.

Abstract translation: 一种生产带材的方法，包括以下步骤：将一对铸辊与它们之间的辊隙组装，在铸辊之间引入以形成总氧含量为至少100ppm且通常小于250的熔融碳钢铸造池 ppm，对铸辊进行反转，使辊上的钢水固化，形成金属壳，氧化物夹杂物水平由钢水的总氧含量反映出来，并通过铸辊之间的辊隙从固化后形成薄钢带 炮弹。 可以使用具有延展性的方法获得独特的钢带。

公开(公告)号：EP2493642A4

公开(公告)日：2015-03-11

申请号：EP10825863

申请日：2010-10-29

Applicant: NUCOR CORP

Inventor： MAHAPATRA RAMA BALLAV ,  MCGAUGHEY DAVID WAYNE ,  ONDROVIC JAY JON ,  PATTERSON TIM ,  SCHUEREN MIKE

IPC: B22D11/06

CPC classification number: B22D11/0665 ,  B22C9/06 ,  B22D11/06 ,  B22D11/0622 ,  B22D11/0651

Abstract: Apparatus and method for continuously casting metal strip includes a pair of casting rolls having casting surfaces with a center portion, edge portions each having average surface roughness between 3 and 7 Ra, and intermediate portion between each edge portion and the center portion, the center portion average surface roughness between 1.2 and 4.0 times the edge portion surface roughness, and the intermediate portions average surface roughness between that of the edge and center portions. The surface roughness of the center portion is tapered across its width, and may be tapered across its width is in stepped zones. The center portion may have surface roughness varied across the surface to correspond to a desired variation in metal shell thickness across the cast strip. The center portion may be at least 60% of the casting roll width, and each edge portion may be up to 7% of the casting roll width.

Abstract translation: 装置和方法用于连续铸造金属带材包括一对具有与中央部的浇铸表面铸辊，边缘部分3和7太阳神之间各自具有的平均表面粗糙度，并且每个边缘部分和中心部分，所述中心部分之间的中间部分 1.2和边缘部的表面粗糙度4.0倍，并且做了边缘和中心部分之间的中间部分的平均表面粗糙度之间的平均表面粗糙度。 中央部的表面粗糙度是在其宽度逐渐变细，并且可以是锥形的横跨其宽度是在阶梯状区域。 中心部分可以具有表面粗糙度在整个表面上变化，以对应于横跨铸带金属外壳厚度的期望的变化。 中心部分可以是铸辊宽度的至少60％，并且每个边缘部分可以是铸辊宽度高达7％。

公开(公告)号：EP1509350A4

公开(公告)日：2005-08-10

申请号：EP03722096

申请日：2003-05-30

Applicant: NUCOR CORP

Inventor： BLEJDE WALTER ,  MAHAPATRA RAMA BALLAV

IPC: B21B1/46 ,  B22D11/06 ,  B22D11/12 ,  B22D11/16 ,  B22D11/18 ,  B22D11/20

CPC classification number: B22D11/16 ,  B22D11/0622

Abstract: A method of controlling in a twin roll strip caster the thickness of as-cast strip by determining and operating at a target depth of the casting pool and a target speed of the casting rolls. The as-cast strip may be cast to a customer-specified thickness or may be subsequently rolled to a customer-specified thickness.

Abstract translation: 通过在铸池的目标深度和铸辊的目标速度下确定和操作来控制双辊轧机中铸态带材的厚度的方法。 铸造钢带可以铸造成客户指定的厚度，或者可以随后轧制成客户指定的厚度。

公开(公告)号：EP1326725A4

公开(公告)日：2004-11-03

申请号：EP01971506

申请日：2001-09-28

Applicant: NUCOR CORP

Inventor： BLEJDE WALTER ,  MAHAPATRA RAMA BALLAV ,  STREZOV LAZAR ,  MUKUNTHAN KANNAPPAR

IPC: B21B1/46 ,  B21B37/76 ,  B22D11/00 ,  B22D11/06 ,  B22D11/124 ,  C21D1/18 ,  C21D8/02 ,  C21D9/46 ,  C22C38/00 ,  C22C38/60 ,  B22D11/112 ,  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%.

Abstract translation: 普通碳钢带连续铸造在双辊铸造机中，并通过冷却集管从而将钢带从奥氏体转变成铁素体，并在两个轧辊之间的温度范围内， 850℃和400℃，冷却速度不低于90℃/秒，使得带材的屈服强度大于450MPa。 铸造后的钢带和冷却前通过热轧机将钢带的厚度减少至少15％和高达50％。

公开(公告)号：EP2300180A4

公开(公告)日：2015-03-25

申请号：EP09771851

申请日：2009-07-02

Applicant: NUCOR CORP

Inventor： DIXON ANDREW EDWARD ,  MCQUILLIS GARY ,  MAHAPATRA RAMA BALLAV ,  WOLLEY LEIGH

IPC: B22D11/06 ,  B22D11/16

CPC classification number: B22D11/0622 ,  B21B1/463 ,  B22D11/1206 ,  B22D11/14