Casting steel strip
    11.
    发明授权
    Casting steel strip 失效
    铸钢带

    公开(公告)号:US5983980A

    公开(公告)日:1999-11-16

    申请号:US63437

    申请日:1998-04-21

    IPC分类号: B22D11/06

    CPC分类号: B22D11/0668 B22D11/0674

    摘要: Method of continuously casting metal strip from a casting pool of molten metal supported on chilled casting rolls such that metal solidifies onto moving casting surfaces of the rolls. The metal is austenitic stainless steel containing chromium and nickel in a ratio (Cr/Ni).sub.eq of less than 1.60 and the casting surface of each roll has an Arithmetical Mean Roughness Value (R.sub.a) of more than 2.5 microns. The heat transferring from the austenitic stainless steel solidifying on the textured surface of the moving casting surface to the casting surface at an initial peak heat transfer rate is more than 15 MW/m within the initial 20 ms of contact.

    摘要翻译: 从支撑在冷却的铸辊上的熔融金属铸池连续铸造金属带的方法,使得金属固化到辊的移动的铸造表面上。 金属是奥氏体不锈钢,其比例(Cr / Ni)eq小于1.60的铬和镍,每个辊的铸造表面具有大于2.5微米的算术平均粗糙度值(Ra)。 在最初的20ms的接触时间内,以最初的峰值传热速率在移动的铸造表面的纹理表面上固化到铸造表面上的奥氏体不锈钢的热传递大于15MW / m 2。

    CASTING THIN STRIP AND DELIVERY NOZZLE THEREFOR
    12.
    发明申请
    CASTING THIN STRIP AND DELIVERY NOZZLE THEREFOR 审中-公开
    铸造薄条和输送喷嘴

    公开(公告)号:US20130119094A1

    公开(公告)日:2013-05-16

    申请号:US13464188

    申请日:2012-05-04

    IPC分类号: B22D11/06

    摘要: A method of casting metal strip and equipment therefor where an elongated metal delivery nozzle extending along in a continuous caster with at least one segment having a main portion adapted to deliver molten metal in the casting pool above the nip along the metal delivery nozzle and an end portion adjacent side dams having a reservoir portion with first and second passages adapted to deliver molten metal into a molten metal pool adjacent the side dams while shells are forming on the casting rolls. The first passages are adapted to deliver molten metal shallowly into the casting pool adjacent the side dams, and the second passages adapted to deliver molten metal deeper into the casting pool than the first passages adjacent the side dams to inhibit formation of skulls during the formation of the cast strip during a casting campaign.

    摘要翻译: 一种铸造金属带及其设备的方法,其中细长的金属输送喷嘴沿着连铸机延伸,其中至少一个段具有主要部分,该主要部分适于沿着金属输送喷嘴在压区上方的熔池中输送熔融金属, 部分相邻侧坝具有储存部分,其具有第一和第二通道,其适于将熔融金属输送到邻近侧坝的熔融金属池中,同时壳体在铸辊上形成。 第一通道适于将熔融金属浅地输送到邻近侧坝的铸池中,并且第二通道适于将熔融金属输送到比浇筑池更深的第一通道,而不是靠近侧坝的第一通道以在形成期间抑制头骨的形成 铸造活动期间的铸钢带。

    APPARATUS FOR CONTINUOUS STRIP CASTING
    13.
    发明申请
    APPARATUS FOR CONTINUOUS STRIP CASTING 有权
    连续条纹铸造设备

    公开(公告)号:US20110253336A1

    公开(公告)日:2011-10-20

    申请号:US13170394

    申请日:2011-06-28

    IPC分类号: B22D11/16

    摘要: 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.

    摘要翻译: 用于连续铸造薄带的装置包括具有一对铸辊的脚轮,其具有能够从压区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。

    METHOD AND APPARATUS FOR CONTROLLING VARIABLE SHELL THICKNESS IN CAST STRIP
    14.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING VARIABLE SHELL THICKNESS IN CAST STRIP 有权
    用于控制箱体中可变壳厚度的方法和装置

    公开(公告)号:US20110108228A1

    公开(公告)日:2011-05-12

    申请号:US12916096

    申请日:2010-10-29

    IPC分类号: B22D11/06 B22C9/06

    摘要: 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.

    摘要翻译: 用于连续铸造金属带的设备和方法包括一对铸造辊,其具有中心部分的铸造表面,平均表面粗糙度在3和7Ra之间的边缘部分以及每个边缘部分和中心部分之间的中间部分, 平均表面粗糙度在边缘部分表面粗糙度的1.2和4.0倍之间,中间部分在边缘和中心部分之间的平均表面粗糙度。 中心部分的表面粗糙度在其宽度上是锥形的,并且其宽度上的锥形可以是阶梯状的。 中心部分可以具有在表面上变化的表面粗糙度,以对应于跨过铸造带材的金属壳厚度的期望变化。 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高达铸辊宽度的7%。

    Casting steel strip
    15.
    发明授权
    Casting steel strip 有权
    铸钢带

    公开(公告)号:US07484550B2

    公开(公告)日:2009-02-03

    申请号:US11052408

    申请日:2005-02-07

    IPC分类号: B22D11/06 C22C38/00

    CPC分类号: B22D11/0651 B22D11/0622

    摘要: A molten steel having a slag of iron, manganese, silicon and aluminum oxides is formed and passed between a pair of casting rolls to form the steel strip having MnO.SiO2.Al2O3 inclusions, the inclusions having a desired ratio of MnO/SiO2.

    摘要翻译: 形成具有铁,锰,硅和氧化铝渣的钢水,并在一对铸辊之间通过,形成具有MnO.SiO 2·Al 2 O 3夹杂物的钢带,所述夹杂物具有所需的MnO / SiO 2比。

    Ladle refining of steel
    16.
    发明授权
    Ladle refining of steel 有权
    钢包炼钢

    公开(公告)号:US06547849B2

    公开(公告)日:2003-04-15

    申请号:US10114627

    申请日:2002-04-02

    IPC分类号: C21C7064

    摘要: A steel charge and slag forming material is heated in a ladle to form molten steel covered by a slag containing silicon, manganese and calcium oxides. The steel is stirred by injection of an inert gas such as argon or nitrogen to cause silicon/manganese-deoxidation and desulphurization to produce a silicon/manganese killed molten steel. Stirring of the molten steel by the inert gas injection while in contact with slag high in calcium oxide generates low free oxygen levels in the steel and desulphurization to sulphur levels below 0.009%. The slag may subsequently be thickened by lime addition to prevent reversion of sulphur back into the steel and oxygen may be injected into the steel to increase its free oxygen content to produce a steel that is readily castable in a twin roll caster.

    摘要翻译: 钢包装和成渣材料在钢包中加热以形成由含硅,锰和氧化钙的炉渣覆盖的钢水。 通过注入惰性气体例如氩气或氮气来搅拌钢,以引起硅/锰脱氧和脱硫以产生硅/锰杀死的钢水。 通过惰性气体注入在与氧化钙高的矿渣接触的情况下搅拌钢水,在钢中产生低的游离氧含量,脱硫至低于0.009%的硫含量。 炉渣随后可以通过石灰添加来增稠,以防止硫回到钢中,并且可以将氧气注入到钢中以增加其游离氧含量,以产生易于在双辊铸造机中浇铸的钢。

    Method for casting metal strip with dynamic crown control
    17.
    发明授权
    Method for casting metal strip with dynamic crown control 有权
    用于铸造具有动态表冠控制的金属条的方法

    公开(公告)号:US08607848B2

    公开(公告)日:2013-12-17

    申请号:US12511381

    申请日:2009-07-29

    CPC分类号: B22D11/0622 B22D11/16

    摘要: A method of continuously casting thin strip dynamically controlling roll casting surface configuration by controlling the temperature of water flowing through the longitudinal water flow passages in a cylindrical tube thickness of no more than 80 millimeters of counter rotated casting rolls, and varying the speed of the casting rolls with attenuation of the ends of the casting rolls with a casting roll drive system responsive to electrical signals received from sensors during a casting campaign.

    摘要翻译: 通过控制流过纵向水流通道的水的温度连续铸造薄带,其方法是以不超过80毫米的反向旋转浇铸辊的圆柱管厚度,并改变铸造速度 通过响应于在铸造活动期间从传感器接收的电信号的铸辊驱动系统,使铸辊的端部具有衰减的辊。

    CASTING DELIVERY NOZZLE
    18.
    发明申请
    CASTING DELIVERY NOZZLE 有权
    铸造喷嘴

    公开(公告)号:US20100230070A1

    公开(公告)日:2010-09-16

    申请号:US12403876

    申请日:2009-03-13

    IPC分类号: B22D11/06 B22D11/00 B22D37/00

    CPC分类号: B22D11/06 B22D11/0642

    摘要: A metal strip casting apparatus and method of casting continuous metal strip include assembling a pair of counter-rotatable casting rolls having casting surfaces positioned laterally forming a nip between for casting, and delivering molten metal through a delivery nozzle disposed above the nip to form a casting pool supported on the casting rolls. The delivery nozzle comprises at least one segment having a main portion and an end portion and an inner trough extending longitudinally through the main portion and into the end portion with end walls at opposite ends thereof, the inner trough communicating with outlets adjacent bottom portions formed in each segment adapted to deliver molten metal to a casting pool and the end portion having a reservoir portion having passages adapted to deliver molten metal to a casting pool.

    摘要翻译: 铸造连续金属条的金属带铸造装置和方法包括组装一对可逆转铸造辊,其具有横向形成用于铸造的辊隙的铸造表面,并且通过设置在辊隙上方的输送喷嘴输送熔融金属以形成铸件 水池支撑在铸辊上。 输送喷嘴包括具有主要部分和端部的至少一个部分和沿着主要部分纵向延伸并且在其相对端部处具有端壁的端部的内部槽,内部槽与邻近形成的底部的出口连通 每个段适于将熔融金属输送到铸造池,并且所述端部具有储存部分,该储存部分具有适于将熔融金属输送到浇注池的通道。

    Production of thin steel strip
    19.
    发明授权
    Production of thin steel strip 有权
    生产薄钢带

    公开(公告)号:US07775259B2

    公开(公告)日:2010-08-17

    申请号:US12170968

    申请日:2008-07-10

    IPC分类号: B22D11/16 B22D11/06

    CPC分类号: B22D11/16 B22D11/0622

    摘要: 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.

    摘要翻译: 通过在铸池的目标深度和铸辊的目标速度下的确定和操作来控制双辊带式铸造机的铸态厚度的方法。 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。

    METHOD FOR CASTING METAL STRIP WITH DYNAMIC CROWN CONTROL
    20.
    发明申请
    METHOD FOR CASTING METAL STRIP WITH DYNAMIC CROWN CONTROL 有权
    用动态冠状控制铸造金属条的方法

    公开(公告)号:US20100032128A1

    公开(公告)日:2010-02-11

    申请号:US12186155

    申请日:2008-08-05

    IPC分类号: B22D11/06 B22D11/16

    CPC分类号: B22D11/0622 B22D11/16

    摘要: A method of continuously casting thin strip dynamically controlling roll casting surface configuation by controlling the temperature of water flowing through the longitudinal water flow passages in a cyclindrical tube thickness of no more than 80 millimeters of counter rotated casting rolls, and varying the speed of the casting rolls with attenuation of the ends of the casting rolls with a casting roll drive system responsive to electrical signals received from sensors during a casting campaign.

    摘要翻译: 通过控制流过纵向水流通道的水的温度连续铸造薄带,其方法是以不大于80毫米的反向旋转铸辊的循环管厚度,并改变铸造速度 通过响应于在铸造活动期间从传感器接收的电信号的铸辊驱动系统,使铸辊的端部具有衰减的辊。