公开(公告)号：US08397792B2

公开(公告)日：2013-03-19

申请号：US13529262

申请日：2012-06-21

申请人： Masayuki Kawamoto ,  Yuichi Tsukaguchi ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

发明人： Masayuki Kawamoto ,  Yuichi Tsukaguchi ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

IPC分类号： B22D11/08

CPC分类号： B22D11/043 ,  B22D11/108

摘要： In a mold for continuously casting a round billet with a curved type continuous casting apparatus, assuming that D0 (m) is an inner diameter at a lower mold edge and R0 (m) is a curvature radius of an outer curvature side at the lower mold edge, when a rate of change Tp (%/m) in mold inner diameter per unit length along a casting direction is expressed by Formula 1, and when a rate of change Rp (%/m) in curvature radius of an outer curvature side per unit length along the casting direction is expressed by Formula 2, the rate of change Tp in mold inner diameter and the rate of change Rp in curvature radius satisfy a relationship expressed by Formula 3; Tp=(1/D0)×(dD/dx)×100(%/m)  Formula 1 Rp=(1/R0)×(dR/dx)×100(%/m)  Formula 2 where D in Formula 1 is a mold inner diameter at a distance x away from an upper mold edge and R in Formula 2 is a curvature radius of the outer curvature side at the distance x, Rp=(Tp/2)×(D0/R0)  Formula 3 Uniform and good contact is obtained between the billet and a mold inner peripheral surface over a whole circumference, so that the casting-defect-free high-quality round billet can stably be produced.

摘要翻译： 在用弯曲型连续铸造装置连续铸造圆坯的模具中，假设D0（m）是下模具边缘处的内径，R0（m）是下模具处的外曲率侧的曲率半径 边缘，当沿着铸造方向的每单位长度的模具内径中的变化率Tp（％/ m）由公式1表示时，并且当外曲率侧的曲率半径的变化率Rp（％/ m） 沿铸造方向每单位长度的公式2由式2表示，模具内径的变化率Tp和曲率半径的变化率Rp满足式3所示的关系; Tp =（1 / D0）×（dD / dx）×100（％/ m）式1 Rp =（1 / R0）×（dR / dx）×100（％/ m）式2式1中的D为 距离上模边缘距离x的模具内径和公式2中的R是距离x处的外曲率侧的曲率半径，Rp =（Tp / 2）×（D0 / R0）公式3均匀和 在坯料与模具内周面之间在整个圆周上获得良好的接触，从而可以稳定地制造无铸造缺陷的优质圆形钢坯。

公开(公告)号：US08225843B2

公开(公告)日：2012-07-24

申请号：US12579495

申请日：2009-10-15

申请人： Masayuki Kawamoto ,  Yuichi Tsukaguchi ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

发明人： Masayuki Kawamoto ,  Yuichi Tsukaguchi ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

IPC分类号： B22D11/08

CPC分类号： B22D11/043 ,  B22D11/108

摘要： In a mold for casting a billet with a curved type continuous casting apparatus, D0 (m) is an inner diameter at a lower mold edge and R0 (m) is a curvature radius of an outer curvature side at the lower mold edge. When a rate of change Tp (%/m) in mold inner diameter per unit length along a casting direction is Tp=(1/D0)×(dD/dx)×100 (%/m), and when a rate of change Rp (%/m) in curvature radius of an outer curvature side per unit length along the casting direction is Rp=(1/R0)×(dR/dx)×100 (%/m), the rate of change Tp in mold inner diameter and the rate of change Rp in curvature radius satisfy a relationship expressed Rp=(Tp/2)×(D0/R0), where D is a mold inner diameter at a distance x away from an upper mold edge and R in Formula 2 is a curvature radius of the outer curvature side at the distance x.

摘要翻译： 在用弯曲型连续铸造设备铸造坯料的模具中，D0（m）是下模具边缘处的内径，R0（m）是下模具边缘处的外曲率侧的曲率半径。 当沿着铸造方向的每单位长度的模具内径的变化率Tp（％/ m）为Tp =（1 / D0）×（dD / dx）×100（％/ m）时，当变化率 Rp =（1 / R0）×（dR / dx）×100（％/ m），模具中的每单位长度的外曲率侧的曲率半径的Rp（％/ m） 内径和曲率半径的变化率Rp满足表示为Rp =（Tp / 2）×（D0 / R0）的关系，其中D是距离上模边缘距离x的模具内径和式 2是距离x处的外曲率侧的曲率半径。

公开(公告)号：US20100032129A1

公开(公告)日：2010-02-11

申请号：US12579449

申请日：2009-10-15

申请人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

发明人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

IPC分类号： B22D11/00

CPC分类号： B22D11/1282 ,  B22D11/141 ,  B22D11/142 ,  B22D11/166 ,  B22D11/225

摘要： A method for continuously casting a billet with a small cross section in which a curved type or vertical type continuous casting machine is used while oscillating the mold upward and downward is characterized in that the casting machine is provided with a mechanism for withdrawing speed oscillation. The mechanism has structural play in the directions of driving and reverse driving in such a manner that the amount of a play-incurred displacement from the neutral position of the structural play in the direction of billet driving or reverse driving is ±2 to ±30 mm in the direction of driving on the pinch roll circumferential length equivalent basis. The mechanism produces a returning force toward the neutral position and operational parameters such as the billet length, the specific amount of secondary cooling water, the casting speed as well as the oscillation amplitude and frequency are optimized.

摘要翻译： 其特征在于，铸造机设置有用于取出速度振荡的机构，其中使用弯曲型或垂直型连续铸造机的小横截面的钢坯进行上下摆动的方法。 该机构在驱动和反向驱动的方向上具有结构性的作用，使得从坯料驱动或反向驱动的方向上的结构作用的中立位置起的游隙发生量为±2〜±30mm 在夹送辊的周向长度等效基础上的驱动方向。 该机构向中立位置产生返回力，优化了坯料长度，二次冷却水的具体量，铸造速度以及振荡幅度和频率等操作参数。

公开(公告)号：US20100032127A1

公开(公告)日：2010-02-11

申请号：US12579495

申请日：2009-10-15

申请人： Masayuki Kawamoto ,  Yuichi Tsukaguchi ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

发明人： Masayuki Kawamoto ,  Yuichi Tsukaguchi ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

IPC分类号： B22D11/00 ,  B22D11/14

CPC分类号： B22D11/043 ,  B22D11/108

摘要： In a mold for casting a billet with a curved type continuous casting apparatus, D0 (m) is an inner diameter at a lower mold edge and R0 (m) is a curvature radius of an outer curvature side at the lower mold edge. When a rate of change Tp (%/m) in mold inner diameter per unit length along a casting direction is Tp=(1/D0)×(dD/dx)×100 (%/m), and when a rate of change Rp (%/m) in curvature radius of an outer curvature side per unit length along the casting direction is Rp=(1/R0)×(dR/dx)×100 (%/m), the rate of change Tp in mold inner diameter and the rate of change Rp in curvature radius satisfy a relationship expressed Rp=(Tp/2)×(D0/R0), where D is a mold inner diameter at a distance x away from an upper mold edge and R in Formula 2 is a curvature radius of the outer curvature side at the distance x.

摘要翻译： 在用弯曲型连续铸造设备铸造坯料的模具中，D0（m）是下模具边缘处的内径，R0（m）是下模具边缘处的外曲率侧的曲率半径。 当沿着铸造方向的每单位长度的模具内径中的变化率Tp（％/ m）为Tp =（1 / D0）×（dD / dx）×100（％/ m）时，当变化率Rp 沿着铸造方向每单位长度的外曲率侧的曲率半径的折射率（％/ m）为Rp =（1 / R0）×（dR / dx）×100（％/ m），模具内径的变化率Tp 并且曲率半径上的变化率Rp满足表示为Rp =（Tp / 2）×（D0 / R0）的关系，其中D是距上模边缘距离x的模具内径和式2中的R 在距离x处的外曲率侧的曲率半径。

公开(公告)号：US06386271B1

公开(公告)日：2002-05-14

申请号：US09539613

申请日：2000-03-31

申请人： Masayuki Kawamoto ,  Masahito Hanao ,  Hirohisa Kikuchi ,  Toshihiko Murakami ,  Masahiko Oka

发明人： Masayuki Kawamoto ,  Masahito Hanao ,  Hirohisa Kikuchi ,  Toshihiko Murakami ,  Masahiko Oka

IPC分类号： B22D1107

CPC分类号： B22D11/111 ,  B22D11/128 ,  B22D11/14

摘要： A method of continuous casting of a steel employs a mold power having a viscosity of 0.5-1.5 poise at 1,300° C. and a solidification temperature of 1,190-1,270° C., in which the mass ratio of CaO to SiO2 is 1.2-1.9, and casting is carried out under the following conditions: casting speed is 2.5-10 m/minute; mold oscillation stroke is 4-15 mm; and specific cooling intensity in secondary cooling of a slab is 1.0-5.0 liter/kg-steel.

摘要翻译： 钢的连续铸造方法采用在1,300℃下粘度为0.5-1.5泊的模具功率和1,190-1,270℃的凝固温度，其中CaO与SiO 2的质量比为1.2-1.9 在以下条件下进行铸造：铸造速度为2.5-10m /分钟; 模具振荡行程为4-15 mm; 板坯二次冷却时的比冷却强度为1.0〜5.0升/ kg钢。

公开(公告)号：US07913745B2

公开(公告)日：2011-03-29

申请号：US12579449

申请日：2009-10-15

申请人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

发明人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi ,  Manabu Adachi

IPC分类号： B22D11/00

CPC分类号： B22D11/1282 ,  B22D11/141 ,  B22D11/142 ,  B22D11/166 ,  B22D11/225

摘要： A method for continuously casting a billet with a small cross section in which a curved type or vertical type continuous casting machine is used while oscillating the mold upward and downward is characterized in that the casting machine is provided with a mechanism for withdrawing speed oscillation. The mechanism has structural play in the directions of driving and reverse driving in such a manner that the amount of a play-incurred displacement from the neutral position of the structural play in the direction of billet driving or reverse driving is ±2 to ±30 mm in the direction of driving on the pinch roll circumferential length equivalent basis. The mechanism produces a returning force toward the neutral position and operational parameters such as the billet length, the specific amount of secondary cooling water, the casting speed as well as the oscillation amplitude and frequency are optimized.

摘要翻译： 其特征在于，铸造机设置有用于取出速度振荡的机构，其中使用弯曲型或垂直型连续铸造机的小横截面的钢坯进行上下摆动的方法。 该机构在驱动和反向驱动的方向上具有结构性的作用，使得从坯料驱动或反向驱动的方向上的结构作用的中立位置起的游隙发生量为±2〜±30mm 在夹送辊的周向长度等效基础上的驱动方向。 该机构向中立位置产生返回力，优化了坯料长度，二次冷却水的具体量，铸造速度以及振荡幅度和频率等操作参数。

公开(公告)号：US20110005705A1

公开(公告)日：2011-01-13

申请号：US12618932

申请日：2009-11-16

申请人： Masahito Hanao ,  Masayuki Kawamoto

发明人： Masahito Hanao ,  Masayuki Kawamoto

IPC分类号： B22D11/124 ,  B22D11/00 ,  C22B9/10

CPC分类号： B22D11/001 ,  B22D11/1245

摘要： Mold flux for continuously casting steel which contains SiO2, T.CaO, Al2O3 and MgO as main components, one or two or more of alkali metal oxides, and further the constituent F, while the ratio of the T.CaO content to the SiO2 content being from 0.7 to 2.0, the Al2O3 content being 35% or less, the MgO content being 20% or less, the total content of alkali metal oxides being 8% or less, the F content being 7% or less, characterized in that each of the contents expressed by formulae (b) to (e) below satisfies the formula (a): 0.63+2.51×YAl2O3≦YCaO/YSiO2≦1.23+2.51×YAl2O3 . . . (a), YSiO2=XSiO2/(XSiO2+XCaO+XAl2O3+XMgO) . . . (b), YCaO=XCaO/(XSiO2+XCaO+XAl2O3+XMgO) . . . (c), YAl2O3=XAl2O3/(XSiO2+XCaO+XAl2O3+XMgO) . . . (d), and YMgO=XMgO/(XSiO2+XCaO+XAl2O3+XMgO) . . . (e). Continuous casting of a round billet using this mold flux can effectively prevent the generation of pin-hole defects and longitudinal cracking.

摘要翻译： 含有SiO 2，T.CaO，Al 2 O 3和MgO作为主要成分的连续铸造钢的模具通量，一种或两种以上碱金属氧化物，以及其他组分F，而T.CaO含量与SiO 2含量的比例 0.7〜2.0，Al 2 O 3含量为35％以下，MgO含量为20％以下，碱金属氧化物的总含量为8％以下，F含量为7％以下，其特征在于， 由式（b）〜（e）表示的含量满足式（a）：0.63 + 2.51×YAl 2 O 3·nlE; YCaO / YSiO 2·nlE; 1.23 + 2.51×YAl 2 O 3。 。 。 （a），YSiO 2 = XSiO 2 /（XSiO 2 + XCaO + XAl 2 O 3 + XMgO）。 。 。 （b）中，YCaO = XCaO /（XSiO2 + XCaO + XAl2O3 + XMgO）。 。 。 （c），YAl2O3 = XAl2O3 /（XSiO2 + XCaO + XAl2O3 + XMgO）。 。 。 （d），YMgO = XMgO /（XSiO2 + XCaO + XAl2O3 + XMgO）。 。 。 （e）。 使用该模具焊剂连续铸造圆钢坯可以有效地防止产生针孔缺陷和纵向开裂。

公开(公告)号：US6125919A

公开(公告)日：2000-10-03

申请号：US134893

申请日：1998-08-17

申请人： Masahito Hanao ,  Masayuki Kawamoto ,  Yoshinori Tanizawa ,  Seiji Kumakura

发明人： Masahito Hanao ,  Masayuki Kawamoto ,  Yoshinori Tanizawa ,  Seiji Kumakura

IPC分类号： B22D11/10 ,  B22D11/108 ,  B22D11/111 ,  C04B35/22 ,  C21C7/076

CPC分类号： C21C7/076 ,  B22D11/111 ,  Y02P10/242

摘要： A mold powder for continuous steel casting, contains CaO, SiO.sub.2 and fluoride as the main components. The ratio by weight of CaO', represented by the following equation, to SiO.sub.2 is 0.9-2.8 and the CaF.sub.2 content is about 5-60 wt. %. The powder contains Na.sub.2 O in an amount of 0-25 wt. % and C in an amount of 0-10 wt. %.CaO'=T.CaO-F.times.(56/38)wherein T.CaO represents the total Ca content in the mold powder as converted to CaO(wt. %) and F represents the total F content in the mold powder(wt. %). The powder is used in a method for continuous steel casting.

摘要翻译： 用于连续铸钢的模具粉末，含有CaO，SiO2和氟化物作为主要成分。 由下式表示的CaO'与SiO 2的重量比为0.9-2.8，CaF 2含量为约5-60重量％。 ％。 粉末含有0-25重量％的Na 2 O。 ％和C为0-10wt。 ％.CaO'= T.CaO-Fx（56/38）其中T.CaO表示转化为CaO（wt。％）的模具粉末中的总Ca含量，F表示模具粉末中的总F含量（wt 。％）。 该粉末用于连续铸钢的方法中。

公开(公告)号：US07909086B2

公开(公告)日：2011-03-22

申请号：US12579471

申请日：2009-10-15

申请人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi

发明人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi

IPC分类号： B22D11/00

CPC分类号： B22D11/115 ,  B22D11/16 ,  B22D11/186 ,  B22D11/207 ,  B22D11/225

摘要： Continuously casting a billet with a small cross section by pouring molten steel into a mold using a cylindrical immersion nozzle is characterized by measuring the molten steel level in the mold using an eddy current sensor. The level is controlled based on the thus-measured value, motion of steel in the mold is adjusted by electromagnetic stirring, a cooling zone during the final period of solidification is disposed within a certain region ranging from the meniscus to the specific site, and casting speed is adjusted so that the region in which the solid phase ratio at the billet center is 0.3-0.99 may be included in the cooling zone during the final period of solidification. The secondary cooling water amount and the billet surface temperature at the entrance to the cooling zone the density of cooling water in the cooling zone during the final period of solidification are optimized.

摘要翻译： 使用圆柱形浸渍喷嘴将钢水浇注到模具中连续铸造具有小横截面的坯料，其特征在于使用涡流传感器测量模具中的钢水水平。 基于这样测量的值控制液位，通过电磁搅拌调节模具中的钢的运动，在最终凝固期间的冷却区设置在从弯液面到特定位置的一定区域内，铸造 调整速度，使得在坯料中心处的固相比为0.3-0.99的区域可以在凝固的最后期间包括在冷却区中。 冷却区入口处的二次冷却水量和坯料表面温度优化了最终固化期间冷却区中冷却水的密度。

公开(公告)号：US20100025004A1

公开(公告)日：2010-02-04

申请号：US12579471

申请日：2009-10-15

申请人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi

发明人： Yuichi Tsukaguchi ,  Masayuki Kawamoto ,  Masahito Hanao ,  Atsushi Hirata ,  Hiroshi Hayashi

IPC分类号： B22D11/18

CPC分类号： B22D11/115 ,  B22D11/16 ,  B22D11/186 ,  B22D11/207 ,  B22D11/225

摘要： Continuously casting a billet with a small cross section by pouring molten steel into a mold using a cylindrical immersion nozzle is characterized by measuring the molten steel level in the mold using an eddy current sensor. The level is controlled based on the thus-measured value, motion of steel in the mold is adjusted by electromagnetic stirring, a cooling zone during the final period of solidification is disposed within a certain region ranging from the meniscus to the specific site, and casting speed is adjusted so that the region in which the solid phase ratio at the billet center is 0.3-0.99 may be included in the cooling zone during the final period of solidification. The secondary cooling water amount and the billet surface temperature at the entrance to the cooling zone the density of cooling water in the cooling zone during the final period of solidification are optimized.

摘要翻译： 使用圆柱形浸渍喷嘴将钢水浇注到模具中连续铸造具有小横截面的坯料，其特征在于使用涡流传感器测量模具中的钢水水平。 基于这样测量的值控制液位，通过电磁搅拌调节模具中的钢的运动，在最终凝固期间的冷却区设置在从弯液面到特定位置的一定区域内，铸造 调整速度，使得在坯料中心处的固相比为0.3-0.99的区域可以在凝固的最后期间包括在冷却区中。 冷却区入口处的二次冷却水量和坯料表面温度优化了最终固化期间冷却区中冷却水的密度。