公开(公告)号：US06712124B1

公开(公告)日：2004-03-30

申请号：US09714161

申请日：2000-11-17

申请人： Hiroshi Yamane ,  Nagayasu Bessho ,  Yuji Miki ,  Shuji Takeuchi ,  Tadasu Kirihara

发明人： Hiroshi Yamane ,  Nagayasu Bessho ,  Yuji Miki ,  Shuji Takeuchi ,  Tadasu Kirihara

IPC分类号： B22D11049

CPC分类号： B22D11/115

摘要： During continuous casting of metals, a non-moving, vibrating magnetic field is applied to a molten metal in a casting mold to impose only vibration on the molten metal. This continuous casting method can produce a cast slab much less susceptible to flux entrainment, capture of bubbles and non-metal inclusions near the surface of the molten metal, and surface segregation. The magnetic field is preferably produced by arranging electromagnets in an opposing relation on both sides of the mold to lie side by side in the direction of longitudinal width of the mold, and supplying a single-phase AC current to each coil. The single-phase AC current preferably has frequency of 0.10 to 60 Hz. A static magnetic field can be applied intermittently in the direction of thickness of a cast slab. This technique can produce a cast slab substantially free from the flux entrainment and the surface segregation. Preferably, the static magnetic field is intermittently applied under setting of an on-time t1=0.10 to 30 seconds and an off-time t0=0.10 to 30 seconds. Also, the static magnetic field is preferably applied to the surface of the molten metal.

摘要翻译： 在连续铸造金属的过程中，将非移动的振动磁场施加到铸模中的熔融金属上，以在熔融金属上施加振动。 这种连续铸造方法可以产生不易熔融夹带，在熔融金属表面附近捕获气泡和非金属夹杂物以及表面偏析的铸坯。 磁场优选通过在模具的两侧上以相对的关系布置电磁体，以沿模具的纵向宽度方向并排放置，并且向每个线圈提供单相交流电流来产生。 单相交流电流的频率优选为0.10〜60Hz。 静态磁场可以在铸坯的厚度方向间歇地施加。 这种技术可以产生基本上没有助焊剂夹带和表面分离的铸坯。 优选地，在导通时间t1 = 0.10〜30秒，关断时间t0 = 0.10〜30秒的设定下，静态施加磁场。 此外，静态磁场优选地施加到熔融金属的表面。

公开(公告)号：US07628196B2

公开(公告)日：2009-12-08

申请号：US10766910

申请日：2004-01-30

申请人： Hiroshi Yamane ,  Nagayasu Bessho ,  Yuji Miki ,  Shuji Takeuchi ,  Tadasu Kirihara

发明人： Hiroshi Yamane ,  Nagayasu Bessho ,  Yuji Miki ,  Shuji Takeuchi ,  Tadasu Kirihara

IPC分类号： B22D11/00 ,  B22D27/02

CPC分类号： B22D11/115

摘要： During continuous casting of metals, a non-moving, vibrating magnetic field is applied to a molten metal in a casting mold to impose only vibration on the molten metal. This continuous casting method can produce a cast slab much less susceptible to flux entrainment, capture of bubbles and non-metal inclusions near the surface of the molten metal, and surface segregation. The magnetic field is preferably produced by arranging electromagnets in an opposing relation on both sides of the mold to lie side by side in the direction of longitudinal width of the mold, and supplying a single-phase AC current to each coil. The single-phase AC current preferably has frequency of 0.10 to 60 Hz. A static magnetic field can be applied intermittently in the direction of thickness of a cast slab. This technique can produce a cast slab substantially free from the flux entrainment and the surface segregation. Preferably, the static magnetic field is intermittently applied under setting of an on-time t1=0.10 to 30 seconds and an off-time t0=0.10 to 30 seconds. Also, the static magnetic field is preferably applied to the surface of the molten metal.

摘要翻译： 在连续铸造金属的过程中，将非移动的振动磁场施加到铸模中的熔融金属上，以在熔融金属上施加振动。 这种连续铸造方法可以产生不易熔融夹带，在熔融金属表面附近捕获气泡和非金属夹杂物以及表面偏析的铸坯。 磁场优选通过在模具的两侧上以相对的关系布置电磁体，以沿模具的纵向宽度方向并排放置，并且向每个线圈提供单相交流电流来产生。 单相交流电流的频率优选为0.10〜60Hz。 静态磁场可以在铸坯的厚度方向间歇地施加。 这种技术可以产生基本上没有助焊剂夹带和表面分离的铸坯。 优选地，在导通时间t1 = 0.10〜30秒，关断时间t0 = 0.10〜30秒的设定下，静态施加磁场。 此外，静态磁场优选地施加到熔融金属的表面。

公开(公告)号：US5882377A

公开(公告)日：1999-03-16

申请号：US793687

申请日：1997-03-05

申请人： Kimiharu Aida ,  Shuji Takeuchi ,  Nagayasu Bessho ,  Tomomichi Terabatake ,  Yasuo Kishimoto ,  Hiroshi Nishikawa ,  Fumio Sudo

发明人： Kimiharu Aida ,  Shuji Takeuchi ,  Nagayasu Bessho ,  Tomomichi Terabatake ,  Yasuo Kishimoto ,  Hiroshi Nishikawa ,  Fumio Sudo

IPC分类号： C21C5/00 ,  C21C5/35 ,  C21C7/00 ,  C22B34/32 ,  C21B13/00

CPC分类号： C21C5/005 ,  C21C5/35 ,  C22B34/32 ,  C21C7/0006

摘要： In this invention, the smelting reduction operation can be carried out in a high efficiency by charging a carbonaceous material in such an amount that total surface area is not less than 60 m.sup.2 per 1 ton of slag weight. Carbon substance finely particulating through thermal crumbling under a high-temperature atmosphere inside the vessel is used as the carbonaceous material, whereby it is possible to stably conduct the smelting reduction while controlling the scattering of the carbonaceous material, and also the erosion, particularly locally erosion of refractory in the smelting reduction furnace, which was a serious problem in the conventional technique, can considerably be decreased to largely prolong the service life of refractory.

摘要翻译： PCT No.PCT / JP96 / 02813 Sec。 371日期1997年3月5日 102（e）1997年3月5日PCT PCT 1996年9月27日PCT公布。 公开号WO97 / 12066 日期1997年3月4日在本发明中，通过以每1吨矿渣重量的总表面积不小于60m 2的量加入碳质材料，可以高效率地进行熔融还原操作。 作为碳质材料，使用在容器内的高温气氛下通过热破碎而微细化的碳物质，由此可以在控制碳质材料的飞散的同时稳定地进行熔炼还原，并且特别是局部侵蚀 在常规技术中是严重问题的熔融还原炉中的耐火材料可以显着降低，从而大大延长耐火材料的使用寿命。

公开(公告)号：US5775404A

公开(公告)日：1998-07-07

申请号：US704591

申请日：1996-09-16

申请人： Yuji Miki ,  Seiji Itoyama ,  Nagayasu Bessho ,  Sumio Yamada ,  Hiroshi Nomura

发明人： Yuji Miki ,  Seiji Itoyama ,  Nagayasu Bessho ,  Sumio Yamada ,  Hiroshi Nomura

IPC分类号： B22D11/00 ,  B22D11/16 ,  B22D11/20

CPC分类号： B22D11/16

摘要： This invention proposes a continuous casting method for austenitic stainless steel capable of simultaneously establishing productivity and an excellent surface quality of steel sheet. For this purpose, the invention lies in a method of continuously casting austenitic stainless steel by pouring melt of austenitic stainless steel from a tundish through an immersion nozzle into a continuously casting mold of a continuous slab caster, solidifying it in the mold and continually drawing the resulting slab of given size out from the mold, characterized in that a high-speed continuous casting is carried out so as to satisfy a relation of casting speed, superheating degree of molten steel in the tundish, sectional area of discharge port in the immersion nozzle and slab width represented by the following equation: 0.30.ltoreq.V.sup.0.58 .multidot.W.sup.-0.04 .multidot..DELTA.T.multidot.d.sup.-0.96 .ltoreq.0.85 wherein V: casting speed (m/min) W: slab width (mm) .DELTA.T: superheating degree of molten steel in tundish (.degree.C.) d: square root of sectional area of nozzle discharge port (mm).

摘要翻译： PCT No.PCT / JP96 / 00281 Sec。 371日期1996年9月16日 102（e）1996年9月16日PCT PCT 1996年2月9日PCT公布。 出版物WO96 / 24452 日期1996年8月15日本发明提出了一种能够同时确定钢板的生产率和优异表面质量的奥氏体不锈钢的连续铸造方法。 为此，本发明的目的在于，通过将来自中间包的熔融奥氏体不锈钢通过浸渍喷嘴浸入连续板坯连铸机的连续铸造模具中连续铸造奥氏体不锈钢的方法，将其固化在模具中并连续拉伸 其特征在于，进行高速连续铸造以满足铸造速度，中间包中的钢水的过热度，浸渍喷嘴的排出口的截面积的关系 和平坦宽度由以下等式表示：0.30

公开(公告)号：US5759232A

公开(公告)日：1998-06-02

申请号：US814484

申请日：1997-03-10

申请人： Yukio Takahashi ,  Shuji Takeuchi ,  Nagayasu Bessho

发明人： Yukio Takahashi ,  Shuji Takeuchi ,  Nagayasu Bessho

IPC分类号： C21B11/02 ,  F27B1/20 ,  C21B5/00

CPC分类号： F27B1/20 ,  Y10S266/90

摘要： A method of charging an iron scrap melting cupola with iron scrap and coke enables the iron scrap to be melted with high energy efficiency. The charging pipe feed is set at a level "h" which meets the condition of h .ltoreq. (r-r') tan .theta., and iron scrap of a quantity Ws meeting the condition of Ws .ltoreq. 1/3.multidot..pi.r.sup.3 .multidot.tan .theta..multidot..rho..sub.s is charged through the charging pipe, followed by charging of coke, wherein h represents the height of the charging feed above the material in the cupola (meters), r represents the inside radius of the cupola (meters), r' represents the inside radius of the charging pipe (meters), .theta. represents the angle of repose of the iron scrap (degrees), Ws represents the quantity of iron scrap per cycle (kg/ch), and .rho..sub.s represents the bulk specific gravity of the iron scrap (kg/m.sup.3).

摘要翻译： 用废铁和焦炭装入废铁熔融圆顶炉的方法使铁屑以高能量效率熔化。 充电管进料设定在满足h

公开(公告)号：US4825935A

公开(公告)日：1989-05-02

申请号：US130601

申请日：1987-12-09

申请人： Hirokazu Tozawa ,  Nagayasu Bessho ,  Tetsuya Fujii ,  Saburo Moriwaki ,  Noboru Yasukawa ,  Tomoaki Kimura

发明人： Hirokazu Tozawa ,  Nagayasu Bessho ,  Tetsuya Fujii ,  Saburo Moriwaki ,  Noboru Yasukawa ,  Tomoaki Kimura

IPC分类号： B22D11/06 ,  B22D11/124

CPC分类号： B22D11/0685

摘要： In order to securely hold a moving belt of a continuous casting device against selective movable side walls, a first group of rotatable control rods which are disposed in a first supply header and an adjacent exhaust header are arranged to produce narrow high pressure zones in the film defined between the cooling pad in which the header are formed and the moving belt. These zones can be selectively moved to juxtapose the side walls when the gap between the walls is adjusted. A second group of rotatable control rods which are disposed in second and third supply headers selectively heat the side edges of the belt which are relatively cool as compared with the center section which is exposed to molten metal. As the side walls are moved apart the width of the edge sections which are exposed to pre-heated coolant can be reduced and the amount of normal temperature coolant applied thereto also increased.

摘要翻译： 为了牢固地将连续铸造装置的移动带抵靠选择性可移动的侧壁，设置在第一供应集管和相邻的排气集管中的第一组可旋转控制杆被布置成在膜中产生窄的高压区 限定在其中形成头部的冷却垫和移动带之间。 当调整壁之间的间隙时，可以选择性地移动这些区域以使侧壁并列。 与暴露于熔融金属的中心部分相比，设置在第二和第三供应集管中的第二组可旋转控制棒选择性地加热带的侧边缘，其相对较冷。 当侧壁移开时，暴露于预热冷却剂的边缘部分的宽度可以减小，并且施加到其上的常温冷却剂的量也增加。

公开(公告)号：US5570736A

公开(公告)日：1996-11-05

申请号：US64084

申请日：1993-05-19

申请人： Seikou Nara ,  Hisao Yamazaki ,  Nagayasu Bessho ,  Seiji Taguchi ,  Tetsuya Fujii

发明人： Seikou Nara ,  Hisao Yamazaki ,  Nagayasu Bessho ,  Seiji Taguchi ,  Tetsuya Fujii

IPC分类号： B22D11/115 ,  B22D11/00

CPC分类号： B22D11/115

摘要： A process for continuously casting steel slabs employing a molten steel containing an oxygen concentration of 30 ppm or less, preferably, 20 ppm or less, using a straight immersion nozzle to which an inert gas is not injected, and disposing a static magnetic field generator on the back surface of the mold for applying the strong static magnetic field to the molten steel within the mold, thereby restricting the flow of the molten steel. With this process, it is possible to prevent the nozzle blocking, and hence to obtain the steel slabs excellent in the internal and surface qualities.

摘要翻译： PCT No.PCT / JP92 / 01221 Sec。 371日期：1993年5月19日 102（e）日期1993年5月19日PCT提交1992年9月25日PCT公布。 公开号WO93 / 05907 日本1993年1月4日使用不注入惰性气体的直浸式喷嘴连续铸造使用含有氧浓度为30ppm以下，优选为20ppm以下的钢水的钢坯的方法， 在模具背面的静磁场发生器，用于将强静态磁场施加到模具内的钢水，从而限制钢水的流动。 通过该处理，能够防止喷嘴堵塞，从而获得内部和表面质量优异的钢坯。

公开(公告)号：US4817702A

公开(公告)日：1989-04-04

申请号：US102114

申请日：1987-09-29

申请人： Seiji Itoyama ,  Hakaru Nakato ,  Tsutomu Nozaki ,  Yasuhiro Habu ,  Nagayasu Bessho ,  Tetsuya Fujii

发明人： Seiji Itoyama ,  Hakaru Nakato ,  Tsutomu Nozaki ,  Yasuhiro Habu ,  Nagayasu Bessho ,  Tetsuya Fujii

IPC分类号： B22D11/06 ,  B22D11/10

CPC分类号： B22D11/0605

摘要： A method and apparatus for continuous casting of an elongated thin metal strip achieves substantially high yield without allowing break-out or sticking. The method for casting a continuous elongated metal strip includes a step of driving endless belts at a varying speed so as to apply jerks to the slightly and half-solidified metal that release the metal from the surfaces of the stationary side walls. Applying jerks to the casting chamber by varying the driving speed of the endless belt ensures that the solidifying metal will travel smoothly and thus ensures a high manufacturing yield.

公开(公告)号：US5375648A

公开(公告)日：1994-12-27

申请号：US116138

申请日：1993-09-02

申请人： Akira Idogawa ,  Nagayasu Bessho ,  Kenichi Sorimachi ,  Tetsuya Fujii ,  Toshikazu Sakuraya

发明人： Akira Idogawa ,  Nagayasu Bessho ,  Kenichi Sorimachi ,  Tetsuya Fujii ,  Toshikazu Sakuraya

IPC分类号： B22D11/11 ,  B22D27/02

CPC分类号： B22D11/11

摘要： An apparatus and method for continuous casting steel. A vertical continuous-casting mold consists of a pair of long side frames and a pair of short side frames formed of a metal having low electrical conductivity. An immersion nozzle supplies molten steel to the mold. An induction heating coil surrounded by a backup frame surrounds the vertical continuous-casting mold. The induction heating coil induction-heats the surface of the molten steel and neighboring portions thereof. The apparatus meets the following conditions;.xi..sup.2 =.sigma..sub.1 /.sigma..sub.2 .ltoreq.4 1/10.ltoreq. .eta.=(2.mu. .sub.0 .multidot..sigma..sub.2 .multidot..omega.).sup.0.5 .multidot.d.ltoreq. 10where .xi. designates the ratio of electrical conductivity of the mold and the molten steel.sigma..sub.1 designates the electrical conductivity of the mold.sigma..sub.2 designates the electrical conductivity of the molten steel.mu..sub.0 designates the permeability in a vacuumd designates the thickness of the mold.omega. designates the pulsatance of the electromagnetic wave.eta. designates the ratio of the penetration depth of the magnetic field to the molten steel to the mold thickness.

摘要翻译： 连铸钢的设备和方法。 垂直连铸铸模由一对长边框架和一对由导电性低的金属构成的短边框架构成。 浸入式喷嘴将钢水提供给模具。 由支撑框架包围的感应加热线圈围绕垂直连铸铸模。 感应加热线圈感应加热钢水的表面及其相邻部分。 仪器符合以下条件; xi 2 = sigma 1 / sigma 2

公开(公告)号：US4635703A

公开(公告)日：1987-01-13

申请号：US762965

申请日：1985-08-06

申请人： Hakaru Nakato ,  Nagayasu Bessho ,  Tsutomu Nozaki ,  Yasuhiro Habu ,  Tomoaki Kimura

发明人： Hakaru Nakato ,  Nagayasu Bessho ,  Tsutomu Nozaki ,  Yasuhiro Habu ,  Tomoaki Kimura

IPC分类号： B22D11/06 ,  B22D11/124

CPC分类号： B22D11/0685

摘要： A cooling pad for use in a continuous casting apparatus for the production of cast sheets. The pad is provided with plural water supply and discharge holes satisfying the particular relations on the arrangement thereof. By using such a cooling pad, a filmy cooling water flow is uniformly and stably formed in the casting.

摘要翻译： 一种用于生产铸片的连续铸造设备中的冷却垫。 垫具有多个满足关于其排列的关系的供水和排放孔。 通过使用这样的冷却垫，在铸件中均匀且稳定地形成膜状的冷却水流。