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1. 发明授权

US07073565B2 Casting steel strip 失效
标题翻译：铸钢带
公开(公告)号：US07073565B2
公开(公告)日：2006-07-11
申请号：US10077391
申请日：2002-02-15
申请人： Nikolco S. Nikolovski , Rama Ballav Mahapatra , Lazar Strezov
发明人： Nikolco S. Nikolovski , Rama Ballav Mahapatra , Lazar Strezov
IPC分类号： B22D11/06
CPC分类号： B22D11/0651 , B22D11/00 , B22D11/0622
摘要： In twin roll casting of steel strip, molten steel is introduced into the nip 16B between parallel casting rolls to create casting pool supported on casting surfaces of the rolls and the rolls are rotated to deliver solidified strip downwardly from the nip. Casting surfaces are textured by a random pattern of discrete projections, which may have an average surface distribution of between 5 and 200 peaks per mm2 and an average height of at least 10 microns. In order to suppress chatter defects, the molten steel also has manganese content of at least 0.55% by weight and a silicon content in the range of 0.1 to 0.35% by weight. The strip is thus capable of moving away from the casting pool at a speed of more than 60 meters per minute without substantial high speed chattering defects.
摘要翻译：在钢带的双辊铸造中，将钢水引入到平行铸辊之间的辊隙16B中，以形成支撑在辊的铸造表面上的铸池，并且辊旋转以将压实带从辊隙向下输送。铸造表面通过离散突起的随机图案进行纹理化，其可以具有平均表面分布为每平方毫米2至500个峰值和至少10微米的平均高度。为了抑制颤振缺陷，钢水的锰含量至少为0.55重量％，硅含量为0.1〜0.35重量％。因此，条带能够以超过60米/分钟的速度远离铸池移动，而没有实质的高速振动缺陷。

2. 发明授权

US07604039B2 Casting steel strip 有权
标题翻译：铸钢带
公开(公告)号：US07604039B2
公开(公告)日：2009-10-20
申请号：US11456633
申请日：2006-07-11
申请人： Nikolco S. Nikolovski , Rama Ballav Mahapatra , Lazar Strezov
发明人： Nikolco S. Nikolovski , Rama Ballav Mahapatra , Lazar Strezov
IPC分类号： B22D11/06
CPC分类号： B22D11/0651 , B22D11/00 , B22D11/0622
摘要： In twin roll casting of steel strip, molten steel is introduced into the nip between parallel casting rolls to create a casting pool supported on casting surfaces of the rolls and the rolls are rotated to deliver solidified strip downwardly from the nip. Casting surfaces are textured by a random pattern of discrete projections, which may have an average surface distribution of between 5 and 200 peaks per mm2 and an average height of at least 10 microns. In order to suppress chatter defects, the molten steel also has manganese content of at least 0.55% by weight and a silicon content in the range of 0.1 to 0.35% by weight. The strip is thus capable of moving away from the casting pool at a speed of more than 60 meters per minute without substantial high speed chattering defects.
摘要翻译：在钢带的双辊铸造中，将钢水引入到平行铸辊之间的辊隙中，以形成支撑在辊的铸造表面上的铸池，并且辊旋转以将压实带从辊隙向下输送。铸造表面通过离散突起的随机图案进行纹理化，其可以具有平均表面分布在每平方毫米2至500个峰值和至少10微米的平均高度之间。为了抑制颤振缺陷，钢水的锰含量至少为0.55重量％，硅含量为0.1〜0.35重量％。因此，条带能够以超过60米/分钟的速度远离铸池移动，而没有实质的高速振动缺陷。

3. 发明授权

US5701948A Casting steel strip 失效
标题翻译：铸钢带
公开(公告)号：US5701948A
公开(公告)日：1997-12-30
申请号：US633949
申请日：1996-04-17
申请人： Lazar Strezov , Rama Ballav Mahapatra , Fred de Sylva , Kannappar Mukunthan
发明人： Lazar Strezov , Rama Ballav Mahapatra , Fred de Sylva , Kannappar Mukunthan
IPC分类号： B22D11/00 , B22D11/04 , B22D11/059 , B22D11/06 , B27D11/06
CPC分类号： B22D11/0651
摘要： In continuous casting of steel strip, a casting pool of molten metal is supported on moving casting surfaces which are chilled to cause solidification of steel on the casting surfaces. The casting surfaces are textured by provision of parallel groove and ridge formations (11) defining V-shaped grooves (12) and ridges (13) with sharp edges (14). The depth (d) of the texture from ridge peak to groove root is in the range 5 to 50 microns and the pitch (p) between the grooves is in the range 100 to 250 microns. The casting surfaces may be peripheral surfaces of casting rolls of a twin roll caster.
摘要翻译：在钢带的连续铸造中，熔融金属铸造池被支撑在移动的铸造表面上，该铸造表面被冷却以在铸造表面上引起钢的凝固。通过设置限定具有尖锐边缘（14）的V形凹槽（12）和脊（13）的平行凹槽和脊形结构（11），铸造表面被纹理化。从脊峰到凹槽根纹理的深度（d）在5至50微米的范围内，并且凹槽之间的间距（p）在100至250微米的范围内。铸造表面可以是双辊铸造机的铸辊的周边表面。

4. 发明授权

US08016021B2 Casting steel strip with low surface roughness and low porosity 有权
标题翻译：铸造钢带，表面粗糙度低，孔隙率低
公开(公告)号：US08016021B2
公开(公告)日：2011-09-13
申请号：US11867977
申请日：2007-10-05
申请人： Walter N. Blejde , Rama Ballav Mahapatra , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , Lazar Strezov
IPC分类号： B22D11/06 , C22C38/00
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。

5. 发明授权

US07591917B2 Method of producing steel strip 失效
标题翻译：生产钢带的方法
公开(公告)号：US07591917B2
公开(公告)日：2009-09-22
申请号：US10401300
申请日：2003-03-27
申请人： Lazar Strezov , Kannappar Mukunthan , Walter N. Blejde , Rama Ballav Mahapatra
发明人： Lazar Strezov , Kannappar Mukunthan , Walter N. Blejde , Rama Ballav Mahapatra
IPC分类号： C21D6/00 , B22D11/16 , C22C38/00 , B22D11/12 , C21D8/02
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。

6. 发明授权

US08002908B2 Steel product with a high austenite grain coarsening temperature 有权
标题翻译：钢产品具有高奥氏体晶粒粗化温度
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
IPC分类号： C22C38/00 , B22D11/06
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。

7. 发明申请

US20090191425A1 STEEL PRODUCT WITH A HIGH AUSTENITE GRAIN COARSENING TEMPERATURE, AND METHOD FOR MAKING THE SAME 有权
标题翻译：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
IPC分类号： C22C38/02 , B32B15/18
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。

8. 发明授权

US07588649B2 Casting steel strip 有权
标题翻译：铸钢带
公开(公告)号：US07588649B2
公开(公告)日：2009-09-15
申请号：US11419684
申请日：2006-05-22
申请人： Walter N. Blejde , Rama Ballav Mahapatra , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , Lazar Strezov
IPC分类号： C22C38/00 , B22D11/06
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。

9. 发明授权

US07485196B2 Steel product with a high austenite grain coarsening temperature 有权
标题翻译：钢产品具有高奥氏体晶粒粗化温度
公开(公告)号：US07485196B2
公开(公告)日：2009-02-03
申请号：US11255604
申请日：2005-10-20
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
IPC分类号： C22C38/00
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 recrystallisation 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，对于高达750℃的温度，至多达到10.0％的应变水平，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。

10. 发明授权

US07048033B2 Casting steel strip 有权
标题翻译：铸钢带
公开(公告)号：US07048033B2
公开(公告)日：2006-05-23
申请号：US10761953
申请日：2004-01-21
申请人： Walter N. Blejde , Rama Ballav Mahapatra , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , Lazar Strezov
IPC分类号： B22D11/00
CPC分类号： B22D11/0622
摘要： A method of producing strip comprising 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：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至少为70ppm，通常小于250ppm的熔融碳钢铸造池，游离氧含量为20〜60ppm，对浇铸辊进行反转，固化轧辊上的钢水，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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