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公开(公告)号：US08002908B2
公开(公告)日：2011-08-23
申请号：US12363896
申请日：2009-02-02
申请人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C21D8/0415 , C21D2211/004 , C22C38/02 , C22C38/04 , Y10T428/12993
摘要： A steel product with a high austenite grain coarsening temperature having less than 0.4% carbon, less than 0.06% aluminium, less than 0.01% titanium, less than 0.01% niobium, and less than 0.02% vanadium by weight, and having fine oxide particles containing silicon and iron distributed through the steel microstructure having an average particle size less than 50 nanometers and may be between 5 and 30 nanometers. The steel product may have fine oxide particles distributed through the microstructure capable of restricting ferrite recrystallization for strain levels up to at least 10.0%, for temperatures up to 750° C. with holding times up to 20 minutes. The steel product may be made by continuous casting of steel strip introduced between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls.
摘要翻译： 具有低奥氏体晶粒粗化温度的钢产品，具有小于0.4％的碳，小于0.06％的铝，小于0.01％的钛，小于0.01％的铌和小于0.02％的钒，并且具有含有 硅和铁通过平均粒度小于50纳米的钢微结构分布，并且可以在5和30纳米之间。 钢制品可以具有通过微结构分布的细小氧化物颗粒，其能够限制铁素体再结晶，对于至多10.0％的应变水平，对于高达750℃的温度，保持时间长达20分钟。 钢产品可以通过在铸辊之间引入的钢带的连续铸造来制造，以形成总氧含量通常低于250ppm，游离氧含量20和60的熔融碳钢的铸造池 ppm，反转铸辊。
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12.发明申请STEEL PRODUCT WITH A HIGH AUSTENITE GRAIN COARSENING TEMPERATURE, AND METHOD FOR MAKING THE SAME 有权具有高奥氏体颗粒冷却温度的钢产品及其制造方法公开(公告)号：US20090191425A1
公开(公告)日：2009-07-30
申请号：US12363896
申请日：2009-02-02
申请人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C21D8/0415 , C21D2211/004 , C22C38/02 , C22C38/04 , Y10T428/12993
摘要： A steel product with a high austenite grain coarsening temperature having less than 0.4% carbon, less than 0.06% aluminium, less than 0.01% titanium, less than 0.01% niobium, and less than 0.02% vanadium by weight, and having fine oxide particles containing silicon and iron distributed through the steel microstructure having an average particle size less than 50 nanometers and may be between 5 and 30 nanometers. The steel product may have fine oxide particles distributed through the microstructure capable of restricting ferrite recrystallization for strain levels up to at least 10.0%, for temperatures up to 750° C. with holding times up to 20 minutes. The steel product may be made by continuous casting of steel strip introduced between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls.
摘要翻译： 具有低奥氏体晶粒粗化温度的钢产品，具有小于0.4％的碳，小于0.06％的铝，小于0.01％的钛，小于0.01％的铌和小于0.02％的钒，并且具有含有 硅和铁通过平均粒度小于50纳米的钢微结构分布，并且可以在5和30纳米之间。 钢制品可以具有通过微结构分布的细小氧化物颗粒，其能够限制铁素体再结晶，对于至多10.0％的应变水平，对于高达750℃的温度，保持时间长达20分钟。 钢产品可以通过在铸辊之间引入的钢带的连续铸造来制造，以形成总氧含量通常低于250ppm，游离氧含量20和60的熔融碳钢的铸造池 ppm，反转铸辊。
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公开(公告)号：US20140261905A1
公开(公告)日：2014-09-18
申请号：US13838465
申请日：2013-03-15
CPC分类号： B22D11/0622 , B22D11/1206
摘要： A method for making alloy strip by continuous casting with tensile strength of at least 900 MPa and total elongation of at least 30%, strip with tensile strength of at least 1200 MPa and total elongation of at least 20%, or strip with tensile strength of at least 1500 MPa and total elongation of at least 15%. Molten metal is introduced forming a casting pool supported on the casting rolls and counter-rotating the A heat flux is provided with a peak heat flux >20 Mw/m2. The strip is cooled at 1000-3000 K/sec. A roll biasing force >40 kN/meter of casting roll length is applied to form thin metal strip. The strip is then conveyed through a first enclosure with an atmosphere having an oxygen content of
摘要翻译： 通过连续铸造制造合金带材的方法，其拉伸强度为至少900MPa，总伸长率为至少30％，拉伸强度为至少1200MPa，总伸长率为至少20％的条带，或拉伸强度为 至少1500MPa，总伸长率至少为15％。 引入熔融金属形成支撑在铸辊上的铸池并且相对旋转.A热通量具有> 20Mw / m 2的峰值热通量。 条带以1000-3000K /秒冷却。 施加> 40kN / m的铸辊长度的辊偏压力以形成薄金属带。 然后将条带通过具有氧含量<5％的气氛的第一外壳输送。 铸造轧辊通过轧机轧制，并且开始减少和改变微观结构。
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公开(公告)号：US07591917B2
公开(公告)日：2009-09-22
申请号：US10401300
申请日：2003-03-27
CPC分类号： B22D11/0622 , B22D11/225 , C21D1/18 , C21D8/0215 , C21D8/0226 , C21D9/573
摘要： Steel strips and methods for producing strip are provided. The method for producing steel strips comprises continuously casting low carbon, silicon/manganese killed or aluminum killed molten steel into a strip, the molten steel comprising a concentration of residuals of 2.0 equal to or less than about 2.0 wt % is selected with regard to the microstructure of the finished strip to provide a desired yield strength, where the residuals are selected in desired amounts from the group consisting of copper, nickel, chromium, molybdenum and tin, and cooling the strip to transform the strip from austenite to ferrite in a desired temperature range. Cast steel with improved yield strength properties is produced by such method.
摘要翻译： 提供钢带和生产带材的方法。 制造钢带的方法包括将低碳，硅/锰杀死的或铝的杀死的钢水连续铸造成带材，选择残余物浓度为2.0等于或小于约2.0重量％的钢水相对于 成品条的微观结构以提供期望的屈服强度，其中以铜，镍，铬，钼和锡组成的组中选择所需量的残余物，并且将条带冷却以使条带从奥氏体转变为铁素体 温度范围。 通过这种方法产生具有改善的屈服强度性能的铸钢。
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公开(公告)号：US07404431B2
公开(公告)日：2008-07-29
申请号：US10417694
申请日：2003-04-17
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。
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公开(公告)号：US08016021B2
公开(公告)日：2011-09-13
申请号：US11867977
申请日：2007-10-05
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 70 ppm and a free oxygen content between 20 and 60 ppm, and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The total oxygen content may be at least 100 ppm and the free oxygen content between 30 and 50 ppm. 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70ppm的总氧含量和20至60ppm的游离氧含量的钢水铸造而生产具有低表面粗糙度和低孔隙率的铸钢带的方法，以及允许大多数任何 氧化物夹杂物处于液相线状态。 总氧含量可以至少为100ppm，游离氧含量为30-50ppm。 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。
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公开(公告)号：US07484550B2
公开(公告)日：2009-02-03
申请号：US11052408
申请日：2005-02-07
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。
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公开(公告)号：US07938164B2
公开(公告)日：2011-05-10
申请号：US12126471
申请日：2008-05-23
CPC分类号： B22D11/0622 , B22D11/16
摘要： A method of continuously casting metal strip for a twin roll caster may include steps of sensing images of a casting pool in the casting area indicative of the casting pool depth, displaying the sensed images to an operator, and controlling a flow of molten metal from a metal supply system into the casting pool responsive to the sensed images indicative of the casting pool depth. The method may include producing separate electrical signals corresponding to the sensed images and controlling the flow of molten metal from the metal supply system into the casting pool responsive to one or more of the electrical signals. The electrical signals may be processed to determine the casting pool depth in each of the plurality of locations and the casting pool depth displayed to the operator. One or a combination of the electrical signals may be selected for providing a determined casting pool depth, and the flow of molten metal may be controlled responsive to the determined casting pool depth. The determined casting pool depth may be an average of casting pool depths from the selected electrical signals.
摘要翻译： 用于连续铸造用于双辊铸造机的金属带的方法可以包括以下步骤：感测铸造区域中的铸造池的图像，其指示铸造池深度，将感测到的图像显示给操作者，以及控制熔融金属从 金属供应系统响应于指示铸池深度的感测图像而进入铸池。 该方法可以包括响应于一个或多个电信号产生对应于感测到的图像的分离的电信号并且控制熔融金属从金属供应系统流入铸池中的流动。 可以处理电信号以确定在多个位置中的每一个中的铸造池深度以及向操作者显示的铸造池深度。 可以选择电信号的一个或组合以提供确定的铸池深度，并且可以响应于所确定的浇注池深度来控制熔融金属的流动。 所确定的铸造池深度可以是来自所选择的电信号的铸造池深度的平均值。
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公开(公告)号：US07594533B2
公开(公告)日：2009-09-29
申请号：US10436336
申请日：2003-05-12
IPC分类号： B22D11/06
CPC分类号： B22D11/0674 , B22D11/0622 , B22D11/0651 , Y10T428/12
摘要： A method of casting low carbon steel strip having inclusions is provided. 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： 提供了一种铸造具有夹杂物的低碳钢带的方法。 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。
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公开(公告)号：US07588649B2
公开(公告)日：2009-09-15
申请号：US11419684
申请日：2006-05-22
CPC分类号： B22D11/0622
摘要： A method of producing strip including the steps of assembling a pair of casting rolls with a nip between them, introducing between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm, usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls, solidifying the molten steel on the rolls to form metal shells with levels of oxide inclusions reflected by the total oxygen content of the molten steel, and forming thin steel strip through the nip between the casting rolls from the solidified shells. The molten steel may have a total oxygen content is at least 100 ppm and the free oxygen content may be between 30 and 50 ppm. A unique steel strip may be obtained using the method having ductile properties.
摘要翻译： 一种生产带材的方法，包括以下步骤：组合一对辊与它们之间的辊隙，在铸辊之间引入以形成总氧含量至少为70ppm，通常小于250的熔融碳钢铸造池 ppm，游离氧含量20和60ppm，反向旋转铸辊，固化辊上的钢水，形成金属壳，氧化物夹杂物水平由钢水的总氧含量反映，并形成薄钢带 通过来自凝固壳的铸辊之间的辊隙。 钢水的总氧含量可以至少为100ppm，游离氧含量可以在30-50ppm之间。 可以使用具有延展性的方法获得独特的钢带。
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