公开(公告)号：US20060182989A1

公开(公告)日：2006-08-17

申请号：US11059137

申请日：2005-02-15

申请人： Walter Blejde ,  Rama Mahapatra

发明人： Walter Blejde ,  Rama Mahapatra

IPC分类号： C03C27/02

CPC分类号： C23C8/10 ,  Y10T428/12611 ,  Y10T428/12667

摘要： A steel strip made with protective layer of less than 100 nanometers with Fe203 adjacent the base metal of the strip. The steel strip may be made by assembling two casting rolls in lateral relationship to form a nip there between through which strip can be cast, forming a casting pool supported on the casting rolls above the nip at a temperature such that the temperature of the steel is greater than about 1,300° C. at the nip between the casting rolls, counter-rotating the casting rolls such that the peripheral surfaces of the casting rolls each travel toward the nip to produce a cast strip downwardly from the nip, and passing the continuous cast strip through at least one cooling chamber that has less than 5% oxygen to cool the strip to less than 150° C. or until coiled without disrupting the surface of the strip adjacent the protective layer formed.

摘要翻译： 钢带，其制成具有小于100纳米的保护层，与带材的基底金属相邻的Fe 2 O 3 3 。 钢带可以通过组装两个横向关系的铸辊来制造，以在其间形成辊隙，通过该轧辊可铸造带材，形成在轧辊上方的铸辊上承载的浇铸池，其温度使得钢的温度为 在铸辊之间的辊隙处大于约1300℃，相对旋转铸辊，使得铸辊的周向表面朝向压区移动，以从压区向下产生铸造带，并且使连续铸造 穿过具有小于5％氧气的至少一个冷却室，以将条带冷却至小于150℃，或直到盘绕而不破坏邻近形成的保护层的条带的表面。

公开(公告)号：US20050145304A1

公开(公告)日：2005-07-07

申请号：US11052408

申请日：2005-02-07

申请人： Walter Blejde ,  Rama Mahapatra

发明人： Walter Blejde ,  Rama Mahapatra

IPC分类号： B22D11/06

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，硅和氧化铝的炉渣的钢水，并在一对铸辊之间通过，形成具有MnO，SiO 2，Al 2 O 3， 夹杂物具有所需的MnO / SiO 2比率的夹杂物。

公开(公告)号：US07211127B2

公开(公告)日：2007-05-01

申请号：US11148796

申请日：2005-06-09

申请人： Rama Mahapatra ,  Walter Blejde ,  Joel Sommer ,  Scott Story ,  Dave Sosinsky

发明人： Rama Mahapatra ,  Walter Blejde ,  Joel Sommer ,  Scott Story ,  Dave Sosinsky

IPC分类号： C21C1/04 ,  C21B7/24

CPC分类号： F27D19/00 ,  B22D1/00 ,  B22D46/00 ,  C21C7/0075 ,  C21C7/06 ,  C21C7/064 ,  C21C7/072 ,  F27D21/00 ,  F27D21/0014 ,  F27D2019/0003

摘要： A system for determining process parameters for the ladle refinement of steel includes a computer executing a number of software algorithms for determining one or more process parameters for various steel refinement process steps. In one embodiment, for example, the computer is configured to determine the total amount of flux additions to achieve a desired sulfur percentage as part of a steel desulfurization process. In another embodiment, the computer is configured to determine the total quantity of oxygen to be injected into the steel as part of a steel reoxidation process. In still another embodiment, the computer is configured to determine a melting temperature of inclusions within the refined steel, and to determine whether this melting temperature is within an acceptable range to successfully process the steel in a continuous steel strip casting apparatus/process, or whether the steel must be reworked to achieve an acceptable inclusion melting temperature.

摘要翻译： 用于确定钢包的钢包精炼的工艺参数的系统包括执行许多软件算法的计算机，用于确定用于各种钢精炼工艺步骤的一个或多个工艺参数。 在一个实施例中，例如，计算机被配置为确定作为钢脱硫过程的一部分来实现所需硫百分比的助焊剂添加量的总量。 在另一个实施例中，计算机被配置为确定作为钢再氧化过程的一部分而被注入到钢中的氧的总量。 在另一个实施例中，计算机被配置为确定精炼钢内的夹杂物的熔融温度，并且确定该熔融温度是否在可接受的范围内以在连续钢带铸造设备/工艺中成功地处理钢，或者是否 钢必须进行再加工以达到可接受的夹杂物熔融温度。

公开(公告)号：US20070079950A1

公开(公告)日：2007-04-12

申请号：US11469686

申请日：2006-09-01

申请人： Rama Mahapatra ,  David Sosinsky

发明人： Rama Mahapatra ,  David Sosinsky

IPC分类号： B22D11/06

CPC分类号： B22D11/0622 ,  B22D11/1206 ,  B22D27/20 ,  C22C1/02 ,  C22C33/04 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/18

摘要： A method for making a thin cast strip with reduced meniscus marks includes assembling a pair of casting rolls laterally positioned to form a nip therebetween, preparing molten steel having a carbon content in the range of 0.01 to 0.3% by weight, a manganese content between 0.1 and 0.8% by weight, a silicon content between 0.05 and 0.5% by weight, a calcium content between 0.0008 and 0.004% by weight, an aluminum content between 2 and 500 ppm by weight, having a free oxygen content below about 50 ppm at 1600 ° C., forming a casting pool of the molten steel supported on casting surfaces of the casting rolls above the nip, and counter-rotating the casting rolls cause thin strip to be casted downwardly from the nip.

摘要翻译： 用于制造具有减小的弯月面标记的薄铸造带的方法包括组装一对横向定位以在其间形成辊隙的铸辊，制备碳含量在0.01至0.3重量％范围内的钢水，锰含量为0.1 和0.8重量％，硅含量在0.05至0.5重量％之间，钙含量在0.0008至0.004重量％之间，铝含量在2至500重量ppm之间，1600℃时游离氧含量低于约50ppm 形成支撑在辊隙上方的铸辊的铸造表面上的钢水铸造池，并且相对旋转铸辊使得薄带从辊隙向下铸造。

公开(公告)号：US20060157218A1

公开(公告)日：2006-07-20

申请号：US11277675

申请日：2006-03-28

申请人： Walter Blejde ,  Rama Mahapatra

发明人： Walter Blejde ,  Rama Mahapatra

IPC分类号： B22D11/06

CPC分类号： B22D11/0674 ,  B22D11/0622 ,  B22D11/0651 ,  Y10T428/12

摘要： A method of producing cast steel strip having low surface roughness and low porosity by casting with molten steel having a total oxygen content of at least about 100 ppm and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The steel strip produced by the method may have a per unit area density of at least about 120 oxide inclusions per square millimeter to a depth of about 2 microns from the strip surface.

摘要翻译： 一种通过铸造具有至少约100ppm的总氧含量的钢水和允许大部分任何氧化物夹杂物处于液相状态的温度来生产具有低表面粗糙度和低孔隙率的铸钢带的方法。 通过该方法生产的钢带可以具有每单位面积密度为每平方毫米至少约120个氧化物夹杂物，距带材表面约2微米的深度。