公开(公告)号：US5265665A

公开(公告)日：1993-11-30

申请号：US892154

申请日：1992-06-02

申请人： Tetsuya Fujii ,  Seiko Nara ,  Nagayasu Bessho ,  Hisao Yamasaki

发明人： Tetsuya Fujii ,  Seiko Nara ,  Nagayasu Bessho ,  Hisao Yamasaki

IPC分类号： B22D11/115 ,  B22D11/12 ,  B22D11/18 ,  B22D27/02

CPC分类号： B22D11/122 ,  B22D11/115 ,  B22D11/186

摘要： In a continuous casting of steel slab, a molten steel is provided having an oxygen concentration of not more than 35 ppm and is supplied from a tundish into a continuous casting mold through a straight immersion nozzle having an open end at the forward end thereof, the mold consisting of a combination of a pair of narrow face mold walls and a pair of wide face mold walls. A traveling magnetic field generating device is disposed on a central area of the outer surface of the wide face mold walls. While the open forward end of the nozzle is positioned in the magnetic field region of the traveling magnetic field generating device, a traveling magnetic field which is perpendicular to the wide face mold walls and which is traveling upward is applied to a flow of the molten steel discharged from the nozzle, thereby controlling the flow. Preferably, an upper or lower static magnetic field generating device or both of them may be also used.

公开(公告)号：US5632324A

公开(公告)日：1997-05-27

申请号：US602782

申请日：1996-03-07

申请人： Seiko Nara ,  Akira Idogawa ,  Nagayasu Bessho ,  Tetsuya Fujii

发明人： Seiko Nara ,  Akira Idogawa ,  Nagayasu Bessho ,  Tetsuya Fujii

IPC分类号： B22D11/04 ,  B22D11/10 ,  B22D11/11 ,  B22D11/112 ,  B22D11/115 ,  B22D11/116 ,  B22D17/02 ,  B22D11/00

CPC分类号： B22D11/115

摘要： When molten steel jetted through an immersion nozzle into a mold for continuous casting is controlled by applying static field between opposed side walls of the mold for the continuous casting, this invention provides cast slabs having good surface and internal qualities by feeding molten steel to the mold for the continuous casting at a throughput of not less than 6 t/min and simultaneously applying a static field having a magnetic flux density of at least 0.5 T to a meniscus portion in the mold for the continuous casting and a static field having a magnetic flux density of not less than 0.5 T to a lower portion of molten steel jetted out from a discharge port of the immersion nozzle.

摘要翻译： PCT No.PCT / JP95 / 01405 Sec。 371日期：1996年3月7日 102（e）1996年3月7日PCT PCT 1995年7月14日PCT公布。 公开号WO96 / 02342 日期1996年2月1日当连续铸造的模具的相对侧壁之间施加静电场时，通过浸入式喷嘴喷射到连铸模具中的钢水被控制，本发明通过进料提供具有良好表面和内部质量的铸坯 以不小于6t / min的通过量将连续铸造的钢水浇铸到模具中，同时将至少为0.5T的磁通密度的静磁场施加到用于连续铸造的模具中的弯液面部分，并且静态 从浸入式喷嘴的排出口喷出的钢水的下部的磁通密度为0.5T以上。

公开(公告)号：US5207777A

公开(公告)日：1993-05-04

申请号：US886305

申请日：1992-05-21

申请人： Kiyoshi Shibuya ,  Toru Sato ,  Nobuyuki Morito ,  Seiko Nara ,  Teruo Hiramatsu

发明人： Kiyoshi Shibuya ,  Toru Sato ,  Nobuyuki Morito ,  Seiko Nara ,  Teruo Hiramatsu

IPC分类号： B22D11/06

CPC分类号： B22D11/0694

摘要： A method of guiding and transferring a rapidly quenched metallic tape includes steps of peeling the rapidly quenched metallic tape produced by solidification through rapid quenching on a circumferential surface of a single cooling roll rotating at a high speed, introducing the metallic tape into a cylindrical transfer guide to a pinch roll unit arranged at a terminal end of the transfer guide to catch the metallic tape by the pinch roll unit, and moving the pinch roll unit to a winder for the metal tape. The metallic tape is fed in the transfer guide substantially without being in contact with the transfer guide. An apparatus for guiding and transferring a rapidly quenched metallic tape includes a cylindrical transfer guide arranged on a normal line of a single cooling roll for introducing and guiding the metallic tape, a pinch roll unit arranged at a terminal end of the transfer guide for catching the metallic tape, and a transfer trolley for transferring the pinch roll unit to a winder for the metallic tape.

摘要翻译： 引导和转移快速淬火的金属带的方法包括以下步骤：通过快速淬火将快速淬火的金属带剥离在高速旋转的单个冷却辊的圆周表面上，将金属带引入圆柱形转移导向件 涉及一种夹送辊单元，其布置在转印导向件的终端处，以通过夹送辊单元捕获金属带，并将夹送辊单元移动到用于金属带的卷绕机。 金属带基本上不与转印引导件接触地供给到转印导向件中。 用于引导和传送快速淬火的金属带的装置包括：布置在单个冷却辊的法线上的圆柱形转移引导件，用于引导和引导金属带;压辊单元，布置在转移引导件的终端处，用于捕获 金属带和用于将夹送辊单元转移到用于金属带的卷绕机的转运手推车。

公开(公告)号：US5230381A

公开(公告)日：1993-07-27

申请号：US910575

申请日：1992-07-08

申请人： Seiko Nara ,  Kiyoshi Shibuya ,  Toru Sato ,  Kyoji Nakanishi

发明人： Seiko Nara ,  Kiyoshi Shibuya ,  Toru Sato ,  Kyoji Nakanishi

IPC分类号： B22D11/06

CPC分类号： B22D11/0697

摘要： A gaseous atmosphere having a predetermined composition is formed near an injected molten metal flow and an injection nozzle of the atmospheric gas so as to manufacture a thin metal strip exhibiting excellent surface property. A thin strip manufacturing apparatus includes an injection nozzle 1 for injecting a molten metal onto a cooling roll 2, an atmospheric gas injection nozzle 3 for injecting an atmosphere having a predetermined composition, a sensor 5 for measuring the concentration of the atmospheric gas, a control device 6 for adjusting a flow rate of the atmospheric gas on the basis of the output of the sensor 5, a cover 4 for maintaining the concentration of the atmospheric gas, and a heating device for preventing cooling of the injection nozzle 1.

公开(公告)号：US5609199A

公开(公告)日：1997-03-11

申请号：US489994

申请日：1995-06-12

申请人： Yoshiei Kato ,  Seiko Nara ,  Kenichi Sorimachi

发明人： Yoshiei Kato ,  Seiko Nara ,  Kenichi Sorimachi

IPC分类号： B22D1/00 ,  B22D11/10 ,  B22D11/108 ,  C21C7/00 ,  C21C7/04 ,  C21C7/064 ,  C21C7/10

CPC分类号： B22D1/00 ,  C21C7/0006 ,  C21C7/04 ,  C21C7/064 ,  C21C7/10

摘要： A method of manufacturing steel having Ca including the steps of adding Ca metal or alloy containing Ca to molten steel in a ladle that has been killed by adding a reducing agent, such as Al, to the molten steel in a predetermined quantity when or after the molten steel has been discharged from a converter, subjecting the molten steel to a vacuum degasification process, and supplying the molten steel to a mold through a tundish so that the molten steel is continuously cast, wherein Ca metal or alloy containing Ca is added to the molten steel in the tundish.

摘要翻译： 一种制造具有Ca的钢的方法，包括以下步骤：将Ca金属或含有Ca的合金添加到钢水中，所述钢包中已经通过在钢水中加入还原剂例如Al而以等于或等于 从转炉中排出钢水，对钢水进行真空脱气处理，并通过中间包将钢水供给到模具，使钢水连续铸造，其中将含有Ca的Ca金属或合金添加到 中间包中的钢水。

公开(公告)号：US4977949A

公开(公告)日：1990-12-18

申请号：US444030

申请日：1989-11-30

申请人： Kiyoshi Shibuya ,  Toru Sato ,  Nobuyuki Morito ,  Seiko Nara ,  Teruo Hiramatsu

发明人： Kiyoshi Shibuya ,  Toru Sato ,  Nobuyuki Morito ,  Seiko Nara ,  Teruo Hiramatsu

IPC分类号： B22D11/06 ,  B22F9/00

CPC分类号： B22F9/008 ,  B22D11/0611

摘要： An apparatus for transferring a rapidly quenched metallic tape, which is produced by solidification through rapid quenching on a circumferential surface of a single cooling roll rotating at a high speed, from the cooling roll into a winder, comprises a transfer means provided with a pinch roll unit for catching and feeding out the peeled metallic tape, a fan for breaking and discharging the metallic tape fed out from the pinch roll unit, and a dust device for recovering metallic pieces and powder generated in the breakage of the metallic tape by the fan.