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公开(公告)号:US4640336A
公开(公告)日:1987-02-03
申请号:US779417
申请日:1985-09-24
申请人: Kazumi Arakawa , Toshiyuki Hirao , Kenji Sugiura , Satoshi Kuroki , Sei Hiraki , Takao Suzuki , Ken Nakai
发明人: Kazumi Arakawa , Toshiyuki Hirao , Kenji Sugiura , Satoshi Kuroki , Sei Hiraki , Takao Suzuki , Ken Nakai
IPC分类号: B22D11/047 , C04B35/581 , C04B35/584 , C04B35/597 , B22D11/10 , B22D41/02
CPC分类号: B22D11/0475 , C04B35/581 , C04B35/584 , C04B35/597
摘要: A silicon aluminum oxynitride containing refractory for use in continuous casting is placed between a mold and a tundish and is formed by sintering an admixture of silicon nitride (Si.sub.3 N.sub.4), aluminum nitride (AlN), boron nitride(BN), and a mineral clay. The refractory further includes aluminum oxide(Al.sub.2 O.sub.3).
摘要翻译: 将含有用于连续铸造的耐火材料的硅铝氮氧化物放置在模具和中间包之间,并且通过烧结氮化硅(Si 3 N 4),氮化铝(AlN),氮化硼(BN)和矿物粘土的混合物形成。 耐火材料还包括氧化铝(Al 2 O 3)。
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公开(公告)号:US4632283A
公开(公告)日:1986-12-30
申请号:US581510
申请日:1984-02-17
申请人: Kazumi Arakawa , Masuo Sugie , Takashi Watanabe , Takumi Nishio , Toshio Kawamura , Tsutomu Nagahata , Takashi Matsushita
发明人: Kazumi Arakawa , Masuo Sugie , Takashi Watanabe , Takumi Nishio , Toshio Kawamura , Tsutomu Nagahata , Takashi Matsushita
CPC分类号: B22D41/42
摘要: A molten metal discharging device comprising:a stationary plate adapted to be mounted at a bottom portion of a container accomodating molten metal, the stationary plate having a molten metal passage bore for permitting the molten metal from the container to be discharged therethrough, anda slide plate slidable along a lower face of the stationary plate and adapted to open or close the passage bore by being slidably displaced relative to the stationary plate, in whicha circumferential wall of the passage bore in the stationary plate is made of dense refractory material and the circumferential wall made of the dense refractory material has a plurality of gas supply holes therein for permitting a gas to be supplied into the passage borehas less fear that the passage bore thereof may be blocked by the solidification of the molten metal and/or deposition of metal oxides and has an improved resistance against corrosion by the molten metal.
摘要翻译: 一种熔融金属排出装置,包括:固定板,其适于安装在容纳熔融金属的容器的底部,所述固定板具有用于允许来自容器的熔融金属从其中排出的熔融金属通道孔, 板可沿着固定板的下表面滑动并且适于通过相对于固定板可滑动地移动而打开或关闭通道孔,其中固定板中的通道孔的周向壁由致密的耐火材料制成,并且 由致密耐火材料制成的周壁在其中具有多个气体供应孔,用于允许气体供应到通道孔中,较少担心其通道孔可能被熔融金属的凝固所阻挡,和/或沉积 金属氧化物,并且具有改善的耐熔融金属腐蚀性。
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公开(公告)号:US4583721A
公开(公告)日:1986-04-22
申请号:US581359
申请日:1984-02-17
申请人: Kazumi Arakawa , Masuo Sugie , Takashi Watanabe , Takumi Nishio , Toshio Kawamura , Tsutomu Nagahata , Takashi Matsushita
发明人: Kazumi Arakawa , Masuo Sugie , Takashi Watanabe , Takumi Nishio , Toshio Kawamura , Tsutomu Nagahata , Takashi Matsushita
CPC分类号: B22D41/42
摘要: A molten metal discharging device including a stationary plate of refractory material and adapted to be mounted at a bottom portion of a container for accommodating molten metal, the stationary plate having a molten metal passage bore for permitting the molten metal from the container to be discharged therethrough, and a slide plate of refractory material slidable along a lower face of the stationary plate and adapted to open or close the passage bore by being slidably displaced relative to the stationary plate, wherein the stationary plate includes a stationary plate main body having the passage bore therein, at least a major part of the main body being made of porous refractory material, the stationary plate main body having a chamber around a circumferential wall part of the passage bore and a gas introduction hole communicated with the chamber for introducing a gas from outside into the chamber, the circumferential wall part having gas supply hole elements for supplying the gas therethrough from the chamber to the passage bore enables to reduce the heat dissipation through the stationary plate and to thereby reduce the risk of clogging of the molten metal passage bore in the stationary plate due to the solidification of the molten metal or the like.
摘要翻译: 一种熔融金属排出装置,包括耐火材料的固定板,并且适于安装在用于容纳熔融金属的容器的底部处,所述固定板具有用于允许来自容器的熔融金属从容器中排出的熔融金属通道孔 以及耐火材料的滑板,其可沿着固定板的下表面滑动,并且适于通过相对于固定板可滑动地移动而打开或关闭通道孔,其中固定板包括具有通道孔的固定板主体 其中,主体的至少主要部分由多孔耐火材料制成,固定板主体具有围绕通道孔的周壁部分的腔室和与腔室连通的气体导入孔,用于从外部引入气体 在该室中,周壁部具有用于供给气体的气体供给孔元件 从腔室到通道孔的再通孔能够减少通过固定板的散热,从而降低由于熔融金属等的固化而使固定板中的熔融金属通道孔堵塞的危险。
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公开(公告)号:US4857488A
公开(公告)日:1989-08-15
申请号:US7468
申请日:1987-02-28
申请人: Yoshiro Aiba , Kazumi Arakawa , Takashi Watanabe , Kazuhide Kawai
发明人: Yoshiro Aiba , Kazumi Arakawa , Takashi Watanabe , Kazuhide Kawai
IPC分类号: B22D11/10 , B22D41/54 , C04B35/00 , C04B35/103 , C04B35/106 , C04B35/66
CPC分类号: C04B35/013 , B22D41/54 , C04B35/103 , C04B35/106 , C04B35/62665 , C04B35/66 , C04B2235/3217 , C04B2235/3244 , C04B2235/3418 , C04B2235/3826
摘要: A method for making a casting nozzle, includes mixing a main casting nozzle material 70-95% by weight and electrofused aggregates 5-30% by weight, the electrofused aggregates consisting essentially of ZrO.sub.2 30-60% by weight, Al.sub.2 O.sub.3 20-50% by weight, SiO.sub.2 10-20% by weight and SiC 5-40% by weight together with a binder, thereby to make a mixture, forming the mixture in the shape of a casting nozzle thereby to make a formed body, and sintering the formed body.
摘要翻译: 制造铸造喷嘴的方法包括将70-95重量%的主铸造喷嘴材料和5-30重量%的电铸聚集体混合,基本上由30-60重量%的ZrO 2,Al 2 O 3 20-50重量% 的SiO 2为10〜20重量%,SiC为5-40重量%,与粘合剂一起形成混合物,形成铸造喷嘴形状的混合物,从而形成成形体,并烧结所形成的 身体。
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