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：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：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。

公开(公告)号：US20070158884A1

公开(公告)日：2007-07-12

申请号：US10586346

申请日：2004-12-22

申请人： Yuichi Tsukaguchi

发明人： Yuichi Tsukaguchi

IPC分类号： C21C5/42

CPC分类号： B22D41/50

摘要： An immersion nozzle for continuous casting which enables improvement in quality of a slab surface and increase in the efficiency of casting by suppressing the self-excited oscillation of a flow in a mold without using a complicated mechanism such as a swirl flow generating immersion nozzle is to be provided. A first immersion nozzle for continuous casting is a nozzle comprising a cylindrical body and a pair of outlet ports formed to face each other in a side wall in the vicinity of a bottom part of the cylindrical body, wherein a ridge-shaped projection extending parallel with the discharge direction projected on a cross section of the nozzle is formed on an inner surface of the bottom part, which is formed in a waterfall basin-like recessed shape having a maximum depth of 5 mm to 50 mm. A second immersion nozzle for continuous casting is a nozzle comprising a cylindrical body and a pair of outlet ports formed to face each other in a side wall in the vicinity of a bottom part of the cylindrical body, wherein each sectional area of the outlet ports vertical to a discharge direction projected on a cross section or longitudinal section of the nozzle is decreased toward an exit.

摘要翻译： 通过抑制模具中的流动的自激振荡而不使用诸如旋流产生浸入式喷嘴的复杂机构，能够提高板坯表面的质量并提高铸造效率的连续铸造用浸渍喷嘴为 提供。 用于连续铸造的第一浸入式喷嘴是包括圆筒体和在圆柱体的底部附近的侧壁中彼此相对形成的一对出口，所述喷嘴形成为与 在喷嘴的横截面上投影的排出方向形成在底部的内表面上，该内表面形成为最大深度为5mm至50mm的瀑布状凹陷形状。 用于连续铸造的第二浸入式喷嘴是包括圆柱形主体和在圆柱体的底部附近的侧壁中彼此面对形成的一对出口的喷嘴，其中出口的每个截面积垂直 喷射到喷嘴的横截面或纵向部分上的喷射方向朝向出口减小。

公开(公告)号：US20110277951A1

公开(公告)日：2011-11-17

申请号：US12779277

申请日：2010-05-13

申请人： Katsumi MORIKAWA ,  Akinari SASAKI ,  Hiroshi OTSUKA ,  Yuichi Tsukaguchi

发明人： Katsumi MORIKAWA ,  Akinari SASAKI ,  Hiroshi OTSUKA ,  Yuichi Tsukaguchi

IPC分类号： B22D11/103 ,  B29C43/18 ,  C04B35/057

CPC分类号： B22D41/54 ,  B22D41/505 ,  C04B35/057 ,  C04B35/1015 ,  C04B35/103 ,  C04B35/106 ,  C04B35/62665 ,  C04B35/63476 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3244 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/48 ,  C04B2235/5292 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/72 ,  C04B2235/9676

摘要： [OBJECT]In an operation of continuous casting of steel grade such as aluminum-killed steel where a nozzle clogging phenomenon is particularly likely to occur, it is intended to prevent adhesion of inclusions (typically, Al2O3) on a nozzle used in the casting operation, and clogging of the nozzle due to the inclusions[SOLUTION]A refractory material 10 is arranged to define a part or an entirety of a molten steel-contacting surface of a continuous casting nozzle, wherein the refractory material 10 contains: a CaO component in an amount of 0.5 mass % or more; one or both of B2O3 and R2O (R is one selected from the group consisting of Na, K and Li) in an amount of 0.5 mass % or more; Al2O3 in an amount of 50 mass % or more; and free carbon in an amount of 8.0 to 34.5 mass %, and wherein a total amount of CaO, B2O3 and R2O is in the range of 1.0 to 15.0 mass %, and a mass ratio of CaO/(B2O3+R2O) is in the range of 0.1 to 3.0.

摘要翻译： [对象]在特别容易发生喷嘴堵塞现象的钢等连续铸造铝铸造钢的操作中，旨在防止夹杂物（通常为Al 2 O 3）在铸造操作中使用的喷嘴上的粘合 ，以及由夹杂物引起的喷嘴的堵塞[解决方案]耐火材料10被布置成限定连续铸造喷嘴的钢水接触表面的一部分或全部，其中耐火材料10包含： 0.5质量％以上的量; 0.5质量％以上的B2O3和R2O中的一种或两种（R选自Na，K和Li中的一种）; 50质量％以上的Al 2 O 3; 和游离碳量为8.0〜34.5质量％，CaO，B2O3和R2O的总量在1.0〜15.0质量％的范围内，CaO /（B2O3 + R2O）的质量比在 范围为0.1〜3.0。

公开(公告)号：US08251129B2

公开(公告)日：2012-08-28

申请号：US12779277

申请日：2010-05-13

申请人： Katsumi Morikawa ,  Akinari Sasaki ,  Hiroshi Otsuka ,  Yuichi Tsukaguchi

发明人： Katsumi Morikawa ,  Akinari Sasaki ,  Hiroshi Otsuka ,  Yuichi Tsukaguchi

IPC分类号： B22D11/10 ,  B22D41/54 ,  C04B35/10 ,  C04B35/52 ,  B29C43/18

CPC分类号： B22D41/54 ,  B22D41/505 ,  C04B35/057 ,  C04B35/1015 ,  C04B35/103 ,  C04B35/106 ,  C04B35/62665 ,  C04B35/63476 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3244 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/422 ,  C04B2235/425 ,  C04B2235/48 ,  C04B2235/5292 ,  C04B2235/5427 ,  C04B2235/5436 ,  C04B2235/5472 ,  C04B2235/72 ,  C04B2235/9676

摘要： In an operation of continuous casting of steel grade such as aluminum-killed steel where a nozzle clogging phenomenon is particularly likely to occur, it is intended to prevent adhesion of inclusions (typically, Al2O3) on a nozzle used in the casting operation, and clogging of the nozzle due to the inclusions. A refractory material 10 is arranged to define a part or an entirety of a molten steel-contacting surface of a continuous casting nozzle, wherein the refractory material 10 contains: a CaO component in an amount of 0.5 mass % or more; one or both of B2O3 and R2O (R is one selected from the group consisting of Na, K and Li) in an amount of 0.5 mass % or more; Al2O3 in an amount of 50 mass % or more; and free carbon in an amount of 8.0 to 34.5 mass %, and wherein a total amount of CaO, B2O3 and R2O is in the range of 1.0 to 15.0 mass %, and a mass ratio of CaO/(B2O3+R2O) is in the range of 0.1 to 3.0.

摘要翻译： 在特别容易发生喷嘴堵塞现象的诸如铝 - 杀死钢的钢等连续铸造的操作中，旨在防止夹杂物（通常为Al 2 O 3）对铸造操作中使用的喷嘴的粘附和堵塞 的喷嘴。 耐火材料10被布置成限定连续铸造喷嘴的钢水接触表面的一部分或全部，其中耐火材料10包含：0.5质量％以上的CaO成分; 0.5质量％以上的B2O3和R2O中的一种或两种（R选自Na，K和Li中的一种）; 50质量％以上的Al 2 O 3; 和游离碳量为8.0〜34.5质量％，CaO，B2O3和R2O的总量在1.0〜15.0质量％的范围内，CaO /（B2O3 + R2O）的质量比在 范围为0.1〜3.0。