公开(公告)号：US08033319B2

公开(公告)日：2011-10-11

申请号：US12913290

申请日：2010-10-27

申请人： Nobuhiro Okada ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

发明人： Nobuhiro Okada ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

IPC分类号： B22D11/115

CPC分类号： B22D11/122 ,  B22D11/115 ,  B22D11/1206

摘要： Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions. The continuous casting method stably ensures excellent center segregation qualities over a long time in casting of high-strength steel with high crack susceptibility or steel grade for extremely thick plate product.

摘要翻译： 公开了一种连续铸造，其中电磁搅拌器沿铸造方向安装在板坯的压下轧制位置的上游，并且其中具有液芯的板坯的厚度减小，其中通过使冲击流形成 - 单向搅拌和单向交替流动式搅拌，具有浓缩偏析元素的钢水在板坯的宽度方向上搅拌扩散，由此可以通过长时间的铸造操作生产稳定中心偏析品质的板坯 。 由于通过相同的电磁搅拌器选择性地施加搅拌流动模式，因此降低设备成本和提高维护性以及广泛地应对各种铸造条件是有效的。 连续铸造方法在极高的板材产品的高裂纹敏感性或钢级的高强度钢的铸造中，长时间稳定地确保优异的中心偏析性。

公开(公告)号：US20110036533A1

公开(公告)日：2011-02-17

申请号：US12913290

申请日：2010-10-27

申请人： Nobuhiro Okada ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

发明人： Nobuhiro Okada ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

IPC分类号： B22D27/02 ,  B22D11/00

CPC分类号： B22D11/122 ,  B22D11/115 ,  B22D11/1206

摘要： Disclosed is a continuous casting in which an electromagnetic stirrer is installed upstream, in the casting direction, of the reduction rolling position of a slab, and in which a slab with a liquid core is reduced in thickness, wherein by imparting a collision flow forming-type stirring and a uni-directional alternating flow forming-type stirring, molten steel with concentrated segregation elements is stirred and diffused in a width-wise direction of slab, whereby a slab stabilized in center segregation qualities can be produced over long-time casting operation. Since the stirring flowing pattern is selectively imparted by means of the same electromagnetic stirrer, it is effective to decrease facility and equipment costs, improve maintainability, and extensively cope with various casting conditions. The continuous casting method stably ensures excellent center segregation qualities over a long time in casting of high-strength steel with high crack susceptibility or steel grade for extremely thick plate product.

摘要翻译： 公开了一种连续铸造，其中电磁搅拌器沿铸造方向安装在板坯的压下轧制位置的上游，并且其中具有液芯的板坯的厚度减小，其中通过使冲击流形成 - 单向搅拌和单向交替流动式搅拌，具有浓缩偏析元素的钢水在板坯的宽度方向上搅拌扩散，由此可以通过长时间的铸造操作生产稳定中心偏析品质的板坯 。 由于通过相同的电磁搅拌器选择性地施加搅拌流动模式，因此降低设备成本和提高维护性以及广泛地应对各种铸造条件是有效的。 连续铸造方法在极高的板材产品的高裂纹敏感性或钢级的高强度钢的铸造中，长时间稳定地确保优异的中心偏析性。

公开(公告)号：US08191611B2

公开(公告)日：2012-06-05

申请号：US13227737

申请日：2011-09-08

申请人： Nobuhiro Okada ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

发明人： Nobuhiro Okada ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

IPC分类号： B22D11/115

CPC分类号： B22D11/122 ,  B22D11/115 ,  B22D11/1206

摘要： An electromagnetic stirrer for stirring molten steel of the liquid core in a width-wise direction of the slab includes an iron core disposed with its length-wise axis along a width-wise direction of slab, and a plurality of exciting coils wound around the outer circumference of and about a length-wise axis of the iron core, wherein two-phase or three-phase alternating current is passed through the coils. The phases of the current in the exciting coils are distributed to impart a stirring flow to the molten that includes flow from the minor sides to the center of the slab or from one minor side to the other minor side with a reversing flow at predetermined time intervals.

摘要翻译： 一种电磁搅拌器，用于搅拌钢芯在板坯的宽度方向上的钢水，包括沿着板坯的宽度方向的长度方向设置的铁芯，以及围绕外部的多个励磁线圈 铁心的长度方向的周长和周围，其中两相或三相交流电流通过线圈。 分配励磁线圈中的电流的相位以向熔融物施加搅动流，包括从短边到板坯中心的流动或从一个次侧到另一个小侧，以预定时间间隔的反向流动 。

公开(公告)号：US20120012274A1

公开(公告)日：2012-01-19

申请号：US13227737

申请日：2011-09-08

申请人： Nobuhiro OKADA ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

发明人： Nobuhiro OKADA ,  Sei Hiraki ,  Kouji Takatani ,  Akihiro Yamanaka ,  Hidetoshi Suwa

IPC分类号： B22D27/02

CPC分类号： B22D11/122 ,  B22D11/115 ,  B22D11/1206

摘要： An electromagnetic stirrer for stirring molten steel of the liquid core in a width-wise direction of the slab includes an iron core disposed with its length-wise axis along a width-wise direction of slab, and a plurality of exciting coils wound around the outer circumference of and about a length-wise axis of the iron core, wherein two-phase or three-phase alternating current is passed through the coils. The phases of the current in the exciting coils are distributed to impart a stirring flow to the molten that includes flow from the minor sides to the center of the slab or from one minor side to the other minor side with a reversing flow at predetermined time intervals.

摘要翻译： 一种电磁搅拌器，用于搅拌钢芯在板坯的宽度方向上的钢水，包括沿着板坯的宽度方向的长度方向设置的铁芯，以及围绕外部的多个励磁线圈 铁心的长度方向的周长和周围，其中两相或三相交流电流通过线圈。 分配励磁线圈中的电流的相位以向熔融物施加搅动流，包括从短边到板坯中心的流动或从一个次侧到另一个小侧，以预定时间间隔的反向流动 。