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。

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。

公开(公告)号：US08141618B2

公开(公告)日：2012-03-27

申请号：US12214913

申请日：2008-06-24

申请人： Walter N. Blejde ,  Mark Schlichting

发明人： Walter N. Blejde ,  Mark Schlichting

IPC分类号： B22D11/06

CPC分类号： B22D11/0622 ,  B22D11/0651 ,  B22D11/066

摘要： A method of continuously casting metal strip may include assembling a pair of casting rolls having casting surfaces laterally positioned to form a nip therebetween through which thin cast strip may be cast, a metal supply system capable of delivering molten steel above the nip, the casting rolls having a crown shape so that edge portions of the cast strip within 50 millimeters of edge of the cast strip have a higher temperature than the cast strip in center portions of the strip width and controlled edging up, forming a casting pool of molten steel supported on the casting surfaces above the nip and controlling side dams adjacent the ends of the nip to confine the casting pool, and forming a cast strip such that the edge portions of the cast strip within 50 millimeters of each edge of the cast strip is of a higher temperature than the strip in the center portions of the strip width.

摘要翻译： 连续铸造金属带的方法可以包括组装一对具有横向放置的铸造表面的铸辊，以在其间形成可铸造薄铸造钢带的辊隙，能够在辊隙上方输送钢水的金属供给系统， 具有冠形形状，使得铸带的边缘的50毫米内的铸造带的边缘部分具有比带宽的中心部分中的铸造条具有更高的温度并且被控制的边缘化，形成支撑在钢带上的钢水铸造池 压区和控制侧上方的铸造表面围绕压区的端部阻挡以限制铸造池，并且形成铸造条，使得铸造带的每个边缘的50毫米内的铸造带的边缘部分具有更高的 温度高于带宽中心部分的条带。

公开(公告)号：US20090314459A1

公开(公告)日：2009-12-24

申请号：US12214913

申请日：2008-06-24

申请人： Walter N. Blejde ,  Mark Schlichting

发明人： Walter N. Blejde ,  Mark Schlichting

IPC分类号： B22D11/06

CPC分类号： B22D11/0622 ,  B22D11/0651 ,  B22D11/066

摘要： A method of continuously casting metal strip may include assembling a pair of casting rolls having casting surfaces laterally positioned to form a nip there between through which thin cast strip may be cast, a metal supply system capable of delivering molten steel above the nip, the casting rolls having a crown shape so that edge portions of the cast strip within 50 millimeters of edge of the cast strip have a higher temperature than the cast strip in center portions of the strip width and controlled edging up, forming a casting pool of molten steel supported on the casting surfaces above the nip and controlling side dams adjacent the ends of the nip to confine the casting pool, and forming a cast strip such that the edge portions of the cast strip within 50 millimeters of each edge of the cast strip is of a higher temperature than the strip in the center portions of the strip width.

摘要翻译： 连续铸造金属带的方法可以包括组装一对具有横向定位的铸造表面的铸造辊，以在其间形成可以铸造薄铸造钢带的辊隙，能够将熔融钢输送到辊隙上方的金属供给系统，铸件 具有冠形的辊，使得铸带边缘的50毫米以内的铸造带的边缘部分在带宽的中心部分具有比铸造带更高的温度并且被控制的加工，形成支撑的钢水铸造池 在辊隙上方的铸造表面和邻近辊隙端部的控制侧挡板以限制铸造池，并且形成铸造条，使得铸造钢带的每个边缘的50毫米内的铸钢带的边缘部分为 比带宽中间部分的条带温度高。

公开(公告)号：US20110303386A1

公开(公告)日：2011-12-15

申请号：US13215388

申请日：2011-08-23

申请人： Walter N. Blejde ,  Jay Jon Ondrovic

发明人： Walter N. Blejde ,  Jay Jon Ondrovic

IPC分类号： B22D11/06

CPC分类号： B21B1/46 ,  B21B27/10 ,  B21B2027/103

摘要： A thin cast strip is formed having at least one microstructure selected from the group consisting of polygonal ferrite, acicular ferrite, Widmanstatten, bainite and martinsite, a surface roughness of less than 1.5 microns Ra and a scale thickness of less than about 10 microns by applying a mixture of water and oil on the work rolls of the hot rolling mill, passing the thin cast strip at a temperature of less than 1100° C. through the hot rolling mill while the mixture of oil and water is applied to the work rolls, and shrouding the thin cast strip from the casting rolls through the hot rolling mill in an atmosphere of less than 5% oxygen to form the thin cast strip.

摘要翻译： 形成具有选自多边形铁素体，针状铁素体，Widmanstatten，贝氏体和马氏体中的至少一种微结构的薄铸造带，小于1.5微米的表面粗糙度Ra和小于约10微米的氧化皮厚度 在热轧机的工作辊上的水和油的混合物，通过热轧机将低于1100℃的温度的薄铸造带通过，同时将油和水的混合物施加到工作辊上， 并且在低于5％氧气的气氛中通过热轧机将铸造薄带从铸辊上覆盖以形成薄铸造带材。

公开(公告)号：US20090126896A1

公开(公告)日：2009-05-21

申请号：US12272207

申请日：2008-11-17

申请人： Walter N. Blejde ,  Jay Jon Ondrovic

发明人： Walter N. Blejde ,  Jay Jon Ondrovic

IPC分类号： B22D11/06

CPC分类号： B21B1/46 ,  B21B1/463 ,  B21B27/10 ,  B21B2027/103 ,  B21B2261/14

摘要： A thin cast strip is formed having at least one microstructure selected from the group consisting of polygonal ferrite, acicular ferrite, Widmanstatten, bainite and martinsite, a surface roughness of less than 1.5 microns Ra and a scale thickness of less than about 10 microns by applying a mixture of water and oil on the work rolls of the hot rolling mill, passing the thin cast strip at a temperature of less than 1100° C. through the hot rolling mill while the mixture of oil and water is applied to the work rolls, and shrouding the thin cast strip from the casting rolls through the hot rolling mill in an atmosphere of less than 5% oxygen to form the thin cast strip.

摘要翻译： 形成具有选自多边形铁素体，针状铁素体，Widmanstatten，贝氏体和马氏体中的至少一种微结构的薄铸造带，小于1.5微米的表面粗糙度Ra和小于约10微米的氧化皮厚度 在热轧机的工作辊上的水和油的混合物，通过热轧机将低于1100℃的温度的薄铸造带通过，同时将油和水的混合物施加到工作辊上， 并且在低于5％氧气的气氛中通过热轧机将铸造薄带从铸辊上覆盖以形成薄铸造带材。

公开(公告)号：US08042601B2

公开(公告)日：2011-10-25

申请号：US12490720

申请日：2009-06-24

申请人： Brian E. Bowman ,  Michael A. Schueren ,  Walter N. Blejde

发明人： Brian E. Bowman ,  Michael A. Schueren ,  Walter N. Blejde

IPC分类号： B22D11/06

CPC分类号： B22D11/066 ,  B22D11/0622

摘要： A side dam for use in a continuous twin roll caster system includes a body of refractory material having opposed outer surfaces with one outer surface adapted to contact molten metal and casting rolls in a continuous twin roll caster system and retain molten metal, and an opposite outer surface having fastening portions of refractory material adapted to attach the side dam to a side dam holder to hold the side dam in place during casting; an aperture in the outer surface of the body positioned adjacent a nip of the continuous twin roll caster system and adapted to receive a side dam insert; and a side dam insert of a second refractory material harder than the refractory material of the body having a first surface adapted to contact molten metal and form with the outer surface of the body the outer surface of the side dam.

摘要翻译： 用于连续双辊连铸机系统的侧坝包括具有相对的外表面的耐火材料体，其一个外表面适于在连续的双辊连铸机系统中接触熔融金属和铸辊并保持熔融金属，并且相对的外表面 表面具有耐火材料的紧固部分，其适于将侧坝附接到侧坝保持件，以在铸造期间将侧坝保持在适当位置; 所述主体的外表面中的孔位于所述连续双辊连铸机系统的辊隙附近，并且适于接收侧挡板插入件; 以及具有比所述主体的耐火材料硬的第二耐火材料的侧坝嵌件，所述第二耐火材料具有适于接触熔融金属的第一表面并与所述主体的外表面形成所述侧坝的外表面。

公开(公告)号：US07281569B2

公开(公告)日：2007-10-16

申请号：US10761947

申请日：2004-01-21

申请人： Walter N. Blejde ,  Rama Mahapatra ,  Lazar Strezov

发明人： Walter N. Blejde ,  Rama Mahapatra ,  Lazar Strezov

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 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。

公开(公告)号：US08562766B2

公开(公告)日：2013-10-22

申请号：US13215388

申请日：2011-08-23

申请人： Walter N. Blejde ,  Jay Jon Ondrovic

发明人： Walter N. Blejde ,  Jay Jon Ondrovic

IPC分类号： C21D7/13 ,  C22C33/04

CPC分类号： B21B1/46 ,  B21B27/10 ,  B21B2027/103

摘要： A thin cast strip is formed having at least one microstructure selected from the group consisting of polygonal ferrite, acicular ferrite, Widmanstatten, bainite and martinsite, a surface roughness of less than 1.5 microns Ra and a scale thickness of less than about 10 microns by applying a mixture of water and oil on the work rolls of the hot rolling mill, passing the thin cast strip at a temperature of less than 1100° C. through the hot rolling mill while the mixture of oil and water is applied to the work rolls, and shrouding the thin cast strip from the casting rolls through the hot rolling mill in an atmosphere of less than 5% oxygen to form the thin cast strip.

摘要翻译： 形成具有选自多边形铁素体，针状铁素体，Widmanstatten，贝氏体和马氏体中的至少一种微结构的薄铸造带，小于1.5微米的表面粗糙度Ra和小于约10微米的氧化皮厚度 在热轧机的工作辊上的水和油的混合物，通过热轧机将低于1100℃的温度的薄铸造带通过，同时将油和水的混合物施加到工作辊上， 并且在低于5％氧气的气氛中通过热轧机将铸造薄带从铸辊上覆盖以形成薄铸造带材。

公开(公告)号：US07992621B2

公开(公告)日：2011-08-09

申请号：US12490720

申请日：2009-06-24

申请人： Brian E. Bowman ,  Michael A. Schueren ,  Walter N. Blejde

发明人： Brian E. Bowman ,  Michael A. Schueren ,  Walter N. Blejde

IPC分类号： B22D11/06

摘要： A side dam for use in a continuous twin roll caster system includes a body of refractory material having opposed outer surfaces with one outer surface adapted to contact molten metal and casting rolls in a continuous twin roll caster system and retain molten metal, and an opposite outer surface having fastening portions of refractory material adapted to attach the side dam to a side dam holder to hold the side dam in place during casting; an aperture in the outer surface of the body positioned adjacent a nip of the continuous twin roll caster system and adapted to receive a side dam insert; and a side dam insert of a second refractory material harder than the refractory material of the body having a first surface adapted to contact molten metal and form with the outer surface of the body the outer surface of the side dam.