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公开(公告)号：US20110209847A1
公开(公告)日：2011-09-01
申请号：US13126948
申请日：2009-11-04
申请人： Takehiko Toh , Hideaki Yamamura , Kenji Umetsu
发明人： Takehiko Toh , Hideaki Yamamura , Kenji Umetsu
CPC分类号： B22D11/115 , B22D11/043
摘要： A continuous casting device for steel of the present invention includes a casting mold for casting a molten steel, a submerged entry nozzle, an electromagnetic stirring device, and an electromagnetic brake device. Further, a curved portion which is curved toward the electromagnetic stirring device is formed at least at a position where the curved portion faces the submerged entry nozzle, on each of the long side walls. Moreover, the horizontal distance between a top of the curved portion and the submerged entry nozzle in plan view is equal to or more than 35 mm and less than 50 mm.
摘要翻译： 本发明的钢的连续铸造装置包括铸钢浇铸用模具，浸入式喷嘴，电磁搅拌装置以及电磁制动装置。 此外，在每个长侧壁上至少形成有弯曲部分朝向浸没式入口喷嘴的位置弯曲的电磁搅拌装置的弯曲部分。 此外，平面图中弯曲部分的顶部和浸没入口喷嘴之间的水平距离等于或大于35mm且小于50mm。
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公开(公告)号：US06555063B1
公开(公告)日：2003-04-29
申请号：US09374826
申请日：1999-08-13
申请人： Kazushige Umezawa , Tokio Suzuki , Koichi Chiba , Ryuji Uemori , Takehiko Toh , Hiroyuki Kondo , Katsuhiro Fuchigami , Eiichi Takeuchi , Masamitsu Wakoh , Akihiro Ono
发明人： Kazushige Umezawa , Tokio Suzuki , Koichi Chiba , Ryuji Uemori , Takehiko Toh , Hiroyuki Kondo , Katsuhiro Fuchigami , Eiichi Takeuchi , Masamitsu Wakoh , Akihiro Ono
IPC分类号： G01N3300
CPC分类号： G01N33/206 , G01N33/20 , Y10T436/20 , Y10T436/25375
摘要： In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and directly analyzing a curved and non-smooth sample surface after solidification by a fluorescent X-ray analysis method using an energy dispersion type spectroscope, or by other chemical or physical measurements, to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.
摘要翻译： 为了快速，经济地评估具有高代表性的金属的清洁度，当金属中存在的非金属夹杂物颗粒的数量，组成等等，并且由金属制造过程中收集的样品评估产品缺陷时 本发明提供一种评价方法，包括以下步骤：通过冷坩埚悬浮熔化装置将金属片悬浮熔融预定时间，将包含在金属片中的非金属夹杂物颗粒排出到熔融金属表面;以及 通过使用能量分散型分光器的荧光X射线分析方法或通过其他化学或物理测量直接分析固化后的弯曲和非平滑样品表面，以测量或分析构成非金属夹杂物颗粒的元素的量 并确定非金属夹杂物的数量。
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公开(公告)号：US08210239B2
公开(公告)日：2012-07-03
申请号：US12516061
申请日：2007-12-03
IPC分类号： B22D11/10 , B22D11/115
CPC分类号： B22D11/115
摘要： A continuous casting method of molten metal using electromagnetic force to improve the cast slab surface properties and reduce the nonmetallic inclusions and bubbles trapped inside the cast slab is provided. An alternating current is run through an electromagnetic coil arranged around a casting mold so as to surround a casting space to control the meniscus shape to improve the cast slab surface properties. The discharge ports of a submerged entry nozzle are oriented upward and the direction of the discharge flow from the discharge ports is above the intersection of the casting mold short side and meniscus.
摘要翻译： 提供了一种使用电磁力连续铸造熔融金属以提高铸坯表面性能并减少非金属夹杂物和被困在铸坯内部的气泡的方法。 交流电流穿过围绕铸模布置的电磁线圈，以围绕铸造空间来控制弯月面形状以改善铸坯表面性能。 浸入式喷嘴的排出口向上取向，排出口的排出方向高于铸模短边和弯液面的交点。
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公开(公告)号：US06773829B2
公开(公告)日：2004-08-10
申请号：US10093916
申请日：2002-03-07
申请人： Katsuhiro Sasai , Eiichi Takeuchi , Hiroshi Harada , Hajime Hasegawa , Takehiko Toh , Keisuke Fujisaki
发明人： Katsuhiro Sasai , Eiichi Takeuchi , Hiroshi Harada , Hajime Hasegawa , Takehiko Toh , Keisuke Fujisaki
IPC分类号： B32B1501
CPC分类号： B22D11/041 , B22D11/115 , B22D11/20 , Y10T428/12 , Y10T428/12458 , Y10T428/12472 , Y10T428/12576 , Y10T428/12958 , Y10T428/12965
摘要： A cast slab has a negative segregation zone composed of a multilayer structure of negative segregation layers disposed between dendrite or crystalline layers. The dendrite or crystalline layers are a deflection structure caused by vibration during formation of the cast slab. The negative segregation layers have a distance between them of not more than 2 mm and the number of negative segregation layers is not less than 3. The cast slab has an equi-axed crystal ratio of not less than 50% inside the multilayer negative segregation zone.
摘要翻译： 铸造板坯具有负偏析区域，该偏析区域由设置在枝晶层或结晶层之间的负偏析层的多层结构构成。 枝晶或结晶层是由铸造板形成期间的振动引起的偏转结构。 负偏析层之间的距离不大于2mm，负偏析层的数量不小于3.多层负极偏析区内的铸坯的等轴晶体比不小于50％ 。
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公开(公告)号：US06432718B1
公开(公告)日：2002-08-13
申请号：US09404990
申请日：1999-09-22
申请人： Kazushige Umezawa , Tokio Suzuki , Koichi Chiba , Ryuji Uemori , Takehiko Toh , Hiroyuki Kondo , Katsuhiro Fuchigami , Eiichi Takeuchi , Masamitsu Wakoh , Akihiro Ono
发明人： Kazushige Umezawa , Tokio Suzuki , Koichi Chiba , Ryuji Uemori , Takehiko Toh , Hiroyuki Kondo , Katsuhiro Fuchigami , Eiichi Takeuchi , Masamitsu Wakoh , Akihiro Ono
IPC分类号： G01N134
CPC分类号： G01N33/206 , Y10T436/20 , Y10T436/25375 , Y10T436/255 , Y10T436/25875
摘要： In order to quickly and economically evaluate cleanliness of a metal with high representativity when quantities, compositions, etc., of non-metallic inclusion particles existing in a metal and resulting in product defects are evaluated by a sample collected during the production process of the metal, the present invention provides an evaluation method involving the steps of levitation-melting a metal piece for a predetermined time by cold crucible levitation-melting means, discharging non-metallic inclusion particles contained in the metal piece to the surface of a molten metal, and directly analyzing a curved and non-smooth sample surface after solidification by dissolving the surface and extracting and filtering the inclusions to measure or analyze the quantities of elements constituting the non-metallic inclusion particles and to determine quantity of the non-metallic inclusions.
摘要翻译： 为了快速，经济地评估具有高代表性的金属的清洁度，当金属中存在的非金属夹杂物颗粒的数量，组成等等，并且由金属制造过程中收集的样品评估产品缺陷时 本发明提供一种评价方法，包括以下步骤：通过冷坩埚悬浮熔化装置将金属片悬浮熔融预定时间，将包含在金属片中的非金属夹杂物颗粒排出到熔融金属表面;以及 通过溶解表面并提取和过滤夹杂物来直接分析固化后的弯曲和非光滑样品表面，以测量或分析构成非金属夹杂物颗粒的元素的量并确定非金属夹杂物的量。
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公开(公告)号：US06336496B1
公开(公告)日：2002-01-08
申请号：US08931848
申请日：1997-09-16
申请人： Shigeo Asai , Takehiko Toh , Kiyoshi Wajima , Kenzo Sawada , Eiichi Takeuchi , Kensuke Sassa , Tingju Li
发明人： Shigeo Asai , Takehiko Toh , Kiyoshi Wajima , Kenzo Sawada , Eiichi Takeuchi , Kensuke Sassa , Tingju Li
IPC分类号： B22D2702
CPC分类号： B22D11/115
摘要： An object of the present invention is to provide a process for continuously casting a molten metal which process suppresses the instability of the initial solidification and stably improves the lubrication and the surface properties of the cast metal, and an apparatus therefore, in the process for continuously casting a molten metal an alternating current is applied to an electromagnetic coil which is provided so that it surrounds a continuous casting mold wall or is embedded in the side wall of the mold, whereby an electromagnetic force is exerted on the molten metal poured into the mold which either oscillates in a constant mode or does not oscillate and is starting to be solidified the process of the present invention also comprises periodically changing the amplitude or waveform of the alternating current to be applied, and the apparatus of the present invention is used for the process.
摘要翻译： 本发明的目的是提供一种连续铸造熔融金属的方法，该方法抑制初始凝固的不稳定性并且稳定地改善铸造金属的润滑和表面性能，因此在连续的方法中 铸造熔融金属交替电流被施加到电磁线圈，电磁线圈被设置成使得其围绕连续铸模壁或嵌入在模具的侧壁中，由此电磁力施加到浇注到模具中的熔融金属上 其以恒定模式振荡或不振荡并且开始固化，本发明的方法还包括周期性地改变要施加的交流电流的幅度或波形，并且本发明的装置用于 处理。
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公开(公告)号：US08418749B2
公开(公告)日：2013-04-16
申请号：US13126948
申请日：2009-11-04
申请人： Takehiko Toh , Hideaki Yamamura , Kenji Umetsu
发明人： Takehiko Toh , Hideaki Yamamura , Kenji Umetsu
IPC分类号： B22D11/115
CPC分类号： B22D11/115 , B22D11/043
摘要： A continuous casting device for steel of the present invention includes a casting mold for casting a molten steel, a submerged entry nozzle, an electromagnetic stirring device, and an electromagnetic brake device. Further, a curved portion which is curved toward the electromagnetic stirring device is formed at least at a position where the curved portion faces the submerged entry nozzle, on each of the long side walls. Moreover, the horizontal distance between a top of the curved portion and the submerged entry nozzle in plan view is equal to or more than 35 mm and less than 50 mm.
摘要翻译： 本发明的钢的连续铸造装置包括铸钢浇铸用模具，浸入式喷嘴，电磁搅拌装置以及电磁制动装置。 此外，在每个长侧壁上至少形成有弯曲部分朝向浸没式入口喷嘴的位置弯曲的电磁搅拌装置的弯曲部分。 此外，平面图中弯曲部分的顶部和浸没入口喷嘴之间的水平距离等于或大于35mm且小于50mm。
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公开(公告)号：US20100059197A1
公开(公告)日：2010-03-11
申请号：US12516061
申请日：2007-12-03
IPC分类号： B22D27/02
CPC分类号： B22D11/115
摘要： The present invention provides a continuous casting method of molten metal using electromagnetic force to improve the cast slab surface properties and reduce the nonmetallic inclusions and bubbles trapped inside the cast slab. An alternating current is run through an electromagnetic coil 4 arranged around a casting mold 1 so as to surround a casting space 8 to control the meniscus shape to improve the cast slab surface properties, the discharge ports 6 of a submerged entry nozzle 5 are made upward oriented, and the direction of the discharge flow 14 from the discharge ports 6 is made one to above the intersection A of the casting mold short side and meniscus. Due to this, the nonmetallic inclusions and bubbles in the discharge flow are absorbed by the continuous casting mold flux of the meniscus 11 at the part of the meniscus reached. Further, the discharge flow 14 receives electromagnetic force due to the electromagnetic coil 4 whereby the spread of the discharge flow in the cast slab thickness direction is suppressed and the discharge flow 14 does not contact the long side shell 12, so it is possible to keep nonmetallic inclusions and bubbles from being trapped from the discharge flow 14 at the long side shell 12.
摘要翻译： 本发明提供一种使用电磁力的熔融金属的连续铸造方法，以改善铸坯表面性能并减少非铸造板坯内的非金属夹杂物和气泡。 交流电流穿过围绕铸模1布置的电磁线圈4，以围绕铸造空间8以控制弯月面形状以改善铸坯表面性能，使浸入式喷嘴5的排出口6向上 并且将排出口6的排出流路14的方向设置在铸模短边和弯液面的交点A之上。 由此，排出流中的非金属夹杂物和气泡被半月板部分的弯液面11的连续铸模熔剂吸收。 此外，排出流14受到电磁线圈4的电磁力的影响，能够抑制铸坯厚度方向的排出流的扩散，排出流14不与长边壳12接触，因此能够保持 非金属夹杂物和气泡被从长侧壳12的排出流14捕获。
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公开(公告)号：US06443219B1
公开(公告)日：2002-09-03
申请号：US09367183
申请日：1999-08-09
申请人： Katsuhiro Sasai , Eiichi Takeuchi , Hiroshi Harada , Hajime Hasegawa , Takehiko Toh , Keisuke Fujisaki
发明人： Katsuhiro Sasai , Eiichi Takeuchi , Hiroshi Harada , Hajime Hasegawa , Takehiko Toh , Keisuke Fujisaki
IPC分类号： B22D2702
CPC分类号： B22D11/041 , B22D11/115 , B22D11/20 , Y10T428/12 , Y10T428/12458 , Y10T428/12472 , Y10T428/12576 , Y10T428/12958 , Y10T428/12965
摘要： The present invention provides a continuous casting method in which vibration is given to molten metal by a shifting magnetic field so that the equi-axed crystal ratio can be enhanced and the equi-axed crystals can be made fine without generating surface defects caused by powder trapping. Further, the present invention provides an apparatus to which the continuous casting method is applied. Furthermore the present invention provides a cast slab produced by the above method and apparatus. The method of casting molten metal comprises the following steps: pouring molten metal into a mold and solidifying it in the mold while applying an electromagnetic force, which is generated by an electromagnetic coil arranged in the proximity of a molten metal pool in the mold, upon the molten metal; and vibrating the molten metal, which has been solidified in the mold while being cooled and solidified, by a shifting magnetic field generated by the electromagnetic coil so that the molten metal is accelerated by a high intensity and a low intensity of acceleration in a range not exceeding a predetermined flow velocity when the directional vectors of high acceleration and low acceleration in the same direction or in the opposite direction are combined with each other.
摘要翻译： 本发明提供了一种连续铸造方法，其中通过移动磁场对熔融金属进行振动，从而可以提高等轴晶体比，并且可以使等轴晶体细化而不产生由粉末捕获引起的表面缺陷 。 此外，本发明提供了一种应用连续铸造方法的装置。 此外，本发明提供了通过上述方法和装置制造的铸造板坯。 铸造熔融金属的方法包括以下步骤：将熔融金属浇注到模具中并将其固化在模具中，同时施加由布置在模具中的熔融金属池附近的电磁线圈产生的电磁力， 熔融金属; 并且通过由电磁线圈产生的移动磁场使已在模具中固化的熔融金属振动，使得熔融金属在不是的范围内以高强度和低强度的加速度加速 当相同方向或相反方向上的高加速度和低加速度的方向矢量彼此组合时，超过预定流速。
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公开(公告)号：US5884685A
公开(公告)日：1999-03-23
申请号：US737965
申请日：1996-11-26
IPC分类号： B22D11/16
CPC分类号： B22D11/16
摘要： A rapid analysis device for analyzing nonmetallic inclusions in steel by a cold crucible method is combined with a mathematical model, and the quality of cast steel is predicted online by simulating the behavior. of the nonmetallic inclusions by calculation. Further, continuous casting process variables are controlled to minimize the amount of nonmetallic inclusions in the cast steel.
摘要翻译： PCT No.PCT / JP96 / 00871 Sec。 371日期1996年11月26日 102（e）1996年11月26日PCT 1996年3月26日PCT公布。 出版物WO96 / 30141 日期1996年10月3日用冷坩埚法分析钢中非金属夹杂物的快速分析装置与数学模型相结合，通过模拟行为在线预测铸钢质量。 的非金属夹杂物。 此外，控制连续铸造工艺变量以最小化铸钢中的非金属夹杂物的量。
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