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。

公开(公告)号：US5985674A

公开(公告)日：1999-11-16

申请号：US737839

申请日：1996-12-13

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： G01N33/20 ,  G01N21/64

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： PCT No.PCT / JP96 / 00650 Sec。 371日期1996年12月13日第 102（e）日期1996年12月13日PCT提交1996年3月14日PCT公布。 公开号WO96 / 28729 日期1996年9月19日为了快速，经济地评价金属含量高的金属的含量，组成等对金属中存在的金属夹杂物的数量，组成等造成产品缺陷的清洁度， 本发明提供了一种评价方法，其包括以下步骤：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，并且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光滑样品表面，以测量或分析构成 非金属夹杂物颗粒并确定非金属夹杂物的量。

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。

公开(公告)号：US5884685A

公开(公告)日：1999-03-23

申请号：US737965

申请日：1996-11-26

申请人： Kazushige Umezawa ,  Takehiko Toh ,  Makoto Tanaka ,  Eiichi Takeuchi ,  Takeo Inomoto

发明人： Kazushige Umezawa ,  Takehiko Toh ,  Makoto Tanaka ,  Eiichi Takeuchi ,  Takeo Inomoto

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。

公开(公告)号：US5657816A

公开(公告)日：1997-08-19

申请号：US549735

申请日：1996-02-23

申请人： Hiroshi Harada ,  Eiichi Takeuchi ,  Takehiko Toh ,  Takanobu Ishii

发明人： Hiroshi Harada ,  Eiichi Takeuchi ,  Takehiko Toh ,  Takanobu Ishii

IPC分类号： B22D11/11 ,  B22D11/115 ,  B22D27/02

CPC分类号： B22D11/115

摘要： The present invention provides a method, for regulating the flow of a molten steel within a mold by taking advantage of a direct current magnetic field, comprising the step of carrying out continuous casting while regulating the flow of a molten steel, delivered through a nozzle, by applying a direct current magnetic field having a substantially uniform magnetic flux distribution over the whole width direction of the mold, characterized in that the flow velocity of a meniscus on the surface of the molten steel within the mold is regulated in a range of from 0.20 to 0.40 m/sec by regulating the molten steel delivery angle of the nozzle, the position of the magnetic field, and the magnetic flux density. When the flow velocity of the meniscus is greatly increased, a stream of the molten steel delivered through the nozzle is allowed to collide directly with a short-side wall of the mold and, thereafter, the flow velocity is regulated according to the following equation (1), while, when the flow velocity of the meniscus is increased or decreased, a stream of the molten steel delivered through the nozzle is allowed to traverse a magnetic field zone and then to collide with a short-side wall of the mold and, thereafter, the flow velocity is regulated according to the following equation (2):V.sub.P /V.sub.O =1+.alpha..sub.1 {1-exp(-.beta..sub.1 .multidot.H.sup.2)}(1)V.sub.P /V.sub.O =1+.alpha..sub.2 {sin (.beta..sub.2 .multidot.H)exp(-r.multidot.H)} (2)wherein H=185.8.multidot.B.sup.2 .multidot.D.multidot.T/(D+T)V.

摘要翻译： PCT No.PCT / JP94 / 00513 Sec。 371日期1996年2月23日 102（e）日期1996年2月23日PCT 1994年3月29日PCT公布。 公开号WO95 / 26243 日期：1995年10月5日本发明提供了一种通过利用直流磁场来调节模具内的钢水流动的方法，包括在调节钢水流动的同时进行连续铸造的步骤， 通过在模具的整个宽度方向施加具有基本上均匀的磁通分布的直流磁场，通过喷嘴输送，其特征在于，模具内的钢水表面上的弯液面的流速被调节在 通过调节喷嘴的钢水输送角度，磁场的位置和磁通密度，从0.20到0.40m / sec的范围。 当弯月面的流速大大增加时，通过喷嘴输送的钢水流被直接与模具的短边壁碰撞，然后根据下式来调节流速（ 1），而当弯月面的流速增加或减小时，允许通过喷嘴输送的钢水流过磁场区，然后与模具的短边壁碰撞， 此后，流速根据以下等式（2）进行调节：VP / VO = 1 +α1{1-exp（-β1XH2）}（1）VP / VO = 1 +α2{sin（β2×H ）exp（-rxH）}（2）其中H = 185.8×B 2×D×T /（D + T）V。

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。

公开(公告)号：US5722480A

公开(公告)日：1998-03-03

申请号：US628698

申请日：1996-04-17

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： B22D11/115 ,  B22D27/02 ,  B22D11/07

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 therefor, 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： PCT No.PCT / JP95 / 01672 Sec。 371日期：1996年4月17日 102（e）日期1996年4月17日PCT提交1995年8月23日PCT公布。 公开号WO96 / 05926 日本特开1996年2月29日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稳定地改善铸造金属的润滑和表面性能及其装置， 在连续铸造熔融金属的过程中，将交流电施加到电磁线圈上，该电磁线圈被设置成使其围绕连续铸模壁或嵌入在模具的侧壁中，由此电磁力施加在熔融 金属倒入模具中，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 本发明用于该方法。

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％ 。

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。

公开(公告)号：US5578143A

公开(公告)日：1996-11-26

申请号：US500883

申请日：1995-07-21

申请人： Kazuo Koyama ,  Eiichi Takeuchi ,  Masayoshi Suehiro

发明人： Kazuo Koyama ,  Eiichi Takeuchi ,  Masayoshi Suehiro

IPC分类号： B22D11/00 ,  B22D11/115 ,  B32B15/01 ,  C22C38/14 ,  C23C2/06 ,  B22D27/02 ,  B32B15/18 ,  C21D1/04

CPC分类号： C22C38/14 ,  B22D11/00 ,  B22D11/115 ,  B32B15/011 ,  C23C2/06 ,  Y10S148/903 ,  Y10T428/12958

摘要： (Object) IF-based, continuously cast slab essentially freed from defects such as surface defects, difficult production and poor strength, etc. of the product that the IF-based sheet steels have; sheet steels and a process for producing the same are provided.(Structure) A continuously cast slab of extremely low carbon steel comprising not more than 1.5% by mass of Si, not more than 2.0% by mass of Mn, not ore than 0.15% by mass of P, 0.01-0.15% by mass of Al, and not more than 0.0050% by mass of N, where the surface layer further contains 0.01-0.08% by mass of C existing as a cementite and the inner layer further contains not more than 0.0050% by mass of C, and at least one of 0.02-0.10% by mass of Ti, 0.01-0.10% by mass of Nb, 0.02-0.10% by mass of V and 0.03-0.10% by mass of Zr, the carbon existing substantially as carbides of these elements, preferably both the surface layer and the inner layer further contain 0.0001-0.0015% by mass of B, the balance being Fe and inevitable impurities; an sheet steel made from the slab; and a process for producing the slab and the sheet steel, combined with continuously casting powder, an electromagnetic brake and an alloy-adding wire.(Effect) The IF steel and its high strong steel, which have been suffered from impaired mass production, lower production yield and incomplete product characteristics have been established as satisfactory basis metallic materials.

摘要翻译： PCT No.PCT / JP94 / 01964 371日期1995年7月21日 102（e）1995年7月21日PCT PCT 1994年11月21日PCT公布。 出版物WO95 / 14794 日期1995年6月1日（对象）基于IF的连续铸坯基本上免除了IF型钢板所产生的产品的缺陷，如表面缺陷，生产难度和强度差等; 提供了钢板及其制造方法。 （结构）将超过1.5质量％的Si，不超过2.0质量％的Mn，不超过0.15质量％的P的0.01-0.15质量％的极低碳钢的连铸板， Al，0.0050质量％以下，其中，表层进一步含有0.01-0.08质量％的作为渗碳体的C，内层还含有不大于0.0050质量％的C，至少 Ti：0.02〜0.10质量％，Nb：0.01〜0.10质量％，V：0.02〜0.10质量％，Zr：0.03〜10质量％，碳，碳， 表面层和内层还含有0.0001-0.0015质量％的B，余量为Fe和不可避免的杂质; 由板坯制成的钢板; 以及连续铸造粉末，电磁制动器和合金添加线的板坯和钢板的制造方法。 （效果）已经建立了以金属材料为基础的IF钢及其高强度钢，其受到批量生产受损，生产率降低和产品特性不完善。