公开(公告)号：US4905753A

公开(公告)日：1990-03-06

申请号：US203980

申请日：1988-06-08

申请人： Kiyomi Shio ,  Kaname Wada ,  Katsuhiro Maeda ,  Noriyuki Kanai ,  Hideyuki Takahama ,  Keiichi Katahira ,  Tsuyoshi Saeki

发明人： Kiyomi Shio ,  Kaname Wada ,  Katsuhiro Maeda ,  Noriyuki Kanai ,  Hideyuki Takahama ,  Keiichi Katahira ,  Tsuyoshi Saeki

IPC分类号： B22D11/06

CPC分类号： B22D11/0605

摘要： A twin belt continuous casting machine for producing thin slabs includes a pair of belts and a pair of edge dams for forming a metal pool, which are movable in the transverse direction of the belt. A plurality of cooling/heating chambers partitioned in the transverse direction of the belt are provided on the rear surface of the belt in the vicinity of respective side end portions of the belts. A plurality of supporting members which are capable of pressing the rear surface of the belt are respectively provided in the plurality of cooling/heating chambers. The movement of the edge dams is synchronized with the operation of the plurality of supporting members. A fluid introduced into each of the cooling/heating chambers is changed into a heating fluid or a cooling fluid in synchronism with the movement of the edge dams.

公开(公告)号：US4854371A

公开(公告)日：1989-08-08

申请号：US287240

申请日：1988-12-21

申请人： Keiichi Katahira ,  Kiyomi Shio ,  Noriyuki Kanai

发明人： Keiichi Katahira ,  Kiyomi Shio ,  Noriyuki Kanai

IPC分类号： B22D11/06

CPC分类号： B22D11/0605 ,  B22D11/066

摘要： A continuous casting machine has a mold of a rectangular cross-section having short sides formed by parallel runs of a pair of metallic belts and short sides constituted by parallel runs of a pair of endless loops each comprising a plurality of dam blocks. The parallel runs of each endless loop are guided by inner and outer guide rails sandwiched between the edges of the parallel runs of the metallic belts and moved in the same direction as the movements of the metallic belts and substantially in synchronism therewith. So as to vary the widthwise dimension of a slab to be cast by the mold, the inner and outer guide rails are independently movable. The endless loop comprises first and second groups of dam blocks which groups are respectively shifted widthwise of the slab by one of the guide rails and by the other guide rail, whereby the width of the slab can be varied perpendicularly to the length of the slab being cast.

公开(公告)号：US06468467B1

公开(公告)日：2002-10-22

申请号：US09712303

申请日：2000-11-14

申请人： Kenichiro Miyamoto ,  Katsuhiko Kato ,  Akio Shinkai ,  Takayuki Kaneyasu ,  Shinya Kitamura ,  Hiroyuki Ishimatsu ,  Hiroshi Sugano ,  Keiichi Katahira ,  Ryuzou Hayakawa

发明人： Kenichiro Miyamoto ,  Katsuhiko Kato ,  Akio Shinkai ,  Takayuki Kaneyasu ,  Shinya Kitamura ,  Hiroyuki Ishimatsu ,  Hiroshi Sugano ,  Keiichi Katahira ,  Ryuzou Hayakawa

IPC分类号： C21C710

CPC分类号： C21C7/10

摘要： In a straight barrel type vacuum refining apparatus, use is made of a combination of: a decarburization method wherein the flow rate of oxygen fed into a vacuum tank and the flow rate of an inert gas fed into the vacuum tank are regulated and, at the same time, the flow rate of oxygen gas blown is reduced at a rate of 0.5 to 12.5 Nm3/h/t/min in a low carbon concentration region having a carbon concentration of not more than the critical carbon concentration; and a vacuum refining apparatus provided with dust accumulation preventing means.

摘要翻译： 在直筒型真空精炼装置中，使用以下组合的脱碳方法：其中供给到真空槽中的氧气的流量和供给到真空槽中的惰性气体的流量被调节，并且在 同时，在碳浓度不超过临界碳浓度的低碳浓度区域内，吹入的氧气的流量以0.5〜12.5Nm 3 / h / t / min的速度降低， 以及设置有防尘装置的真空精炼装置。

公开(公告)号：US06190435B1

公开(公告)日：2001-02-20

申请号：US09101859

申请日：1998-08-17

申请人： Kenichiro Miyamoto ,  Katsuhiko Kato ,  Akio Shinkai ,  Takayuki Kaneyasu ,  Shinya Kitamura ,  Hiroyuki Ishimatsu ,  Hiroshi Sugano ,  Keiichi Katahira ,  Ryuzou Hayakawa

发明人： Kenichiro Miyamoto ,  Katsuhiko Kato ,  Akio Shinkai ,  Takayuki Kaneyasu ,  Shinya Kitamura ,  Hiroyuki Ishimatsu ,  Hiroshi Sugano ,  Keiichi Katahira ,  Ryuzou Hayakawa

IPC分类号： C21C710

CPC分类号： C21C7/10

摘要： A method for vacuum decarburization refining of a molten steel includes providing a vacuum tank having a one-legged, straight barrel snorkel as a lower portion of the vacuum tank. The a degree of vacuum in the vacuum tank is regulated at a high carbon concentration region to a value in a range of −35 to −20 in terms of G defined by the following equation (1): G=5.96×10−3×T×ln(P/Pco)  (1), wherein Pco=760{10(−13800/T+8.75)}×(% C)/(% Cr)  (2), and wherein P

摘要翻译： 一种用于钢水真空脱碳精炼的方法包括提供一个具有单腿直筒桶通气管的真空罐作为真空罐的下部。 真空槽中的真空度以高碳浓度区域调节至以下式（1）定义的G-35至-20的范围内的值：其中P <760，T表示 钢水温度K和P表示真空槽中的真空度Torr。