公开(公告)号：US5355936A

公开(公告)日：1994-10-18

申请号：US84438

申请日：1993-07-01

申请人： Hastuyoshi Kumashiro ,  Taizou Kiyosuke ,  Jiro Arashi ,  Toshihiro Kosuge ,  Kazuaki Sueoka

发明人： Hastuyoshi Kumashiro ,  Taizou Kiyosuke ,  Jiro Arashi ,  Toshihiro Kosuge ,  Kazuaki Sueoka

IPC分类号： B22D11/05 ,  B22D11/124

CPC分类号： B22D11/05

摘要： An adjustable mold for a horizontal continuous casting apparatus includes an airtight cylindrical-shaped mold tube and an adjustable mold divided into a plural number of cooling plates in the direction of the periphery of the casting section and arranged after the airtight cylindrical-shaped mold tube. The plural number of cooling plates of the adjustable mold are able to move in the direction of the casting section radius. The inlet ends of each of the cooling plates of the adjustable mold are supported by support shafts that can have their position determined so that an inner diameter of an outlet end of the airtight cylindrical-shaped mold tube and an inner diameter of an inlet end of the adjustable mold can be brought into agreement. Thus, the plural number of cooling plates of the adjustable mold can swivel in the direction of the casting section radius around the support shaft by the reciprocating movement of a hydraulic cylinder provided to connect the side wall portion of a cooling box frame of the airtight cylindrical-shaped mold tube and the outlet end portion of each of the cooling plates of the adjustable mold.

摘要翻译： 水平连续铸造装置的可调节模具包括气密的圆柱形模具管和在铸造部分的周边方向上分成多个冷却板的可调节模具，并设置在气密的圆柱形模具管之后。 可调节模具的多个冷却板能够在铸造部分半径的方向上移动。 可调模具的每个冷却板的入口端由支撑轴支撑，支撑轴可以确定其位置，使得气密的圆柱形模具管的出口端的内径和入口端的内径 可调模具可以达成一致。 因此，可调节模具的多个冷却板可以通过设置用于连接气密圆柱形的冷却箱框架的侧壁部分的液压缸的往复运动而沿着支撑轴的铸造部分半径的方向旋转 形模具和可调模具的每个冷却板的出口端部分。

公开(公告)号：US5540753A

公开(公告)日：1996-07-30

申请号：US347925

申请日：1994-12-01

申请人： Hironori Takano ,  Hiroaki Morishige ,  Ryuji Nakao ,  Toshihiro Kosuge

发明人： Hironori Takano ,  Hiroaki Morishige ,  Ryuji Nakao ,  Toshihiro Kosuge

IPC分类号： C21C5/32 ,  C21C5/00 ,  C21C5/35 ,  C21C5/46 ,  C21C7/00 ,  C21C7/068 ,  C21C7/072

CPC分类号： C21C5/005 ,  C21C5/35 ,  C21C5/4606

摘要： The present invention provides a method for refining a molten chromium-containing steel by decarburization according to a combined-blown process, which contributes to an improvement in decarburization rate and realizes efficient decarburization while preventing [Cr] contained in the molten steel from being oxidized. The method is characterized in that, in a region where the [C] concentration of the molten chromium-containing steel is not less than 0.15%, oxygen or a gas mixture of oxygen with an inert gas is blown through a top-blown lance onto the surface of the molten steel under the following conditions:(1) the velocity of the gas immediately after spouting through one or at least two nozzle holes of the top-blown lance is not less than the velocity of sound; and(2) the ratio of the length h of a zone, in the vicinity of the surface of the molten steel, where the gas jet velocity is less than the velocity of sound, to the minimum hole diameter d.sub.0 of said nozzle, h/d.sub.0, is not more than 60, provided that when gas jets blown through a multihole nozzle overlap each other with a degree of overlap .beta., a requirement represented by the formula h/d.sub.0 .times.(1-.beta.).ltoreq.60 is met.

摘要翻译： 本发明提供了一种根据组合吹制方法通过脱碳来精炼含铬的含铬钢的方法，其有助于提高脱碳速率，并且在防止钢水中所含的[Cr]被氧化的同时实现有效的脱碳。 该方法的特征在于，在含有熔融铬的钢的[C]浓度不小于0.15％的区域中，氧气或惰性气体的氧气或气体混合物通过顶吹喷枪吹送到 在以下条件下钢水表面：（1）通过顶吹喷枪的一个或至少两个喷嘴孔喷射后的气体速度不小于声速; 和（2）气体喷射速度小于声速的钢水表面附近的区域长度h与所述喷嘴的最小孔径d0之比h / d0不大于60，条件是当通过多孔喷嘴吹扫的气体喷嘴以重叠度β重叠时，满足由公式h / d0x（1-β）= 60表示的要求。

公开(公告)号：US5458183A

公开(公告)日：1995-10-17

申请号：US226370

申请日：1994-04-12

申请人： Tatsuhito Matsushima ,  Seishiro Saita ,  Masayuki Inoue ,  Hiroyuki Nakashima ,  Shogo Matsumura ,  Hiroshi Iwasaki ,  Ryuuzou Hanzawa ,  Katsuhiko Kawamoto ,  Haruo Ohguro ,  Yukio Morimoto ,  Toshihiro Kosuge

发明人： Tatsuhito Matsushima ,  Seishiro Saita ,  Masayuki Inoue ,  Hiroyuki Nakashima ,  Shogo Matsumura ,  Hiroshi Iwasaki ,  Ryuuzou Hanzawa ,  Katsuhiko Kawamoto ,  Haruo Ohguro ,  Yukio Morimoto ,  Toshihiro Kosuge

IPC分类号： B22D11/047 ,  B22D11/00

CPC分类号： B22D11/047

摘要： A continuous casting method includes the steps of continuously supplying molten metal into a mold through at least one feed nozzle connected to the mold through a break ring, with the feed nozzle, the mold and the break ring forming at least a portion of a continuous casting apparatus, and intermittently withdrawing a cast piece formed from the molten metal in the mold thereby creating pressure in a space formed at a connecting point between the break ring, the mold and the cast piece as a result of the withdrawal from the mold. A shield means is placed to seal-off space between the at least one feed nozzle, and the mold to prevent entry of gas into the continuous casting apparatus and the pressure is reduced in the sealed-off space to thereby eliminate a pressure differential between the pressure in the sealed-off space and the pressure created in the space formed at the connecting point between the break ring, the mold and the cast piece during the intermittent withdrawal from the mold.

摘要翻译： 连续铸造方法包括以下步骤：通过穿过断环连接到模具的至少一个进料喷嘴将熔融金属连续供应到模具中，进料喷嘴，模具和断裂环形成至少一部分连续铸造 装置，并且间歇地取出由模具中的熔融金属形成的铸件，从而在由模具退出的结果中形成在断环，模具和铸件之间的连接点处的空间中产生压力。 屏蔽装置被放置成密封至少一个进料喷嘴和模具之间的空间，以防止气体进入连续铸造设备，并且在密封空间中降低压力，从而消除了压力差 在间歇地退出模具期间，密封空间中的压力以及在断环，模具和铸件之间的连接点处形成的空间中产生的压力。

公开(公告)号：US5743323A

公开(公告)日：1998-04-28

申请号：US231667

申请日：1994-04-25

申请人： Haruo Ohguro ,  Toshihiro Kosuge ,  Katsuhiko Kawamoto ,  Ryuuzou Hanzawa ,  Shogo Matsumura ,  Hiroyuki Kawai ,  Hiroyuki Nakashima ,  Yukio Morimoto ,  Youji Ao ,  Tsutomu Fujii ,  Hideo Kaneko ,  Hatsuyoshi Kumashiro

发明人： Haruo Ohguro ,  Toshihiro Kosuge ,  Katsuhiko Kawamoto ,  Ryuuzou Hanzawa ,  Shogo Matsumura ,  Hiroyuki Kawai ,  Hiroyuki Nakashima ,  Yukio Morimoto ,  Youji Ao ,  Tsutomu Fujii ,  Hideo Kaneko ,  Hatsuyoshi Kumashiro

IPC分类号： B22D11/04 ,  B22D11/045 ,  B22D11/047 ,  B22D11/10

CPC分类号： B22D11/047 ,  B22D11/045

摘要： A continuous casting apparatus comprises continuously supplying molten metal from a tundish to a cooled mold having an inlet and an outlet at least through a break ring, forming a cast section by continuously cooling the molten metal in the mold and starting the solidification of the molten metal below its surface, and intermittently withdrawing the cast section with respect to the mold through its outlet. During continuous casting, a sealing gas having a pressure higher than atmospheric and being soluble in the molten metal is invariable supplied to the entirety of the contact area of the mold and the break ring.

摘要翻译： 连续铸造设备包括将中间包中的熔融金属连续地供给至少通过断环的入口和出口的冷却模具，通过连续冷却模具中的熔融金属并开始熔融金属的固化形成铸造部分 在其表面下方，并通过其出口间歇性地将铸造部分相对于模具取出。 在连续铸造期间，不断地将压力高于大气压并且可溶于熔融金属的密封气体提供给模具和断环的整个接触区域。

公开(公告)号：US5335715A

公开(公告)日：1994-08-09

申请号：US742422

申请日：1991-08-08

申请人： Haruo Ohguro ,  Toshihiro Kosuge ,  Ryuuzou Hanzawa ,  Shogo Matsumura ,  Hiroyuki Kawai ,  Youji Ao ,  Tsutomu Fujii ,  Hideo Kaneko ,  Hatsuyoshi Kumashiro

发明人： Haruo Ohguro ,  Toshihiro Kosuge ,  Ryuuzou Hanzawa ,  Shogo Matsumura ,  Hiroyuki Kawai ,  Youji Ao ,  Tsutomu Fujii ,  Hideo Kaneko ,  Hatsuyoshi Kumashiro

IPC分类号： B22D11/04 ,  B22D11/045 ,  B22D11/047 ,  B22D11/00

CPC分类号： B22D11/047 ,  B22D11/045

摘要： A continuous cast method comprises continuously supplying molten metal from a tundish through a break ring to a cooled mold having an inlet and an outlet. A cast section is formed by continuously cooling the molten metal in the mold and starting the solidification of the molten metal below its surface and intermittently withdrawing the cast section with respect to the mold through its outlet. During continuous casting, a sealing gas having a pressure higher than atmospheric and soluble in the molten metal is constantly supplied to the entirety of the contact area of the mold and the break ring.

摘要翻译： 连续铸造方法包括将熔融金属从中间包通过断裂环连续供应到具有入口和出口的冷却模具。 通过连续冷却模具中的熔融金属并使熔融金属在其表面下方的凝固开始并且通过其出口相对于模具间歇地取出铸造部分而形成铸造部分。 在连续铸造期间，不断地向模具和断环的接触区域的整体提供具有高于大气压并且可溶于熔融金属的压力的密封气体。