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公开(公告)号:US4609347A
公开(公告)日:1986-09-02
申请号:US722453
申请日:1985-04-12
CPC分类号: F27D3/024
摘要: A walking beam type heating furnace for steels has a conventional skid pipe through which a coolant flows, a skid button made of a ceramic material, a base fixed to an upper portion of the skid pipe, an attachment frame attached to the base for holding the skid button in its supporting position, and a thermal insulating material placed at a bottom portion of the skid button for supporting the skid button. The thermal insulating material has a high strength, high density, low thermal conductivity and high coefficient of thermal expansion such as quartz glass, vycol glass, hard glass and soda lime glass.
摘要翻译: 用于钢的步行梁式加热炉具有常规的冷却剂流动的滑动管,由陶瓷材料制成的滑动按钮,固定到滑动管的上部的基部,附接到基座的附接框架,用于保持 防滑按钮处于其支撑位置,并且放置在滑动按钮的底部的隔热材料用于支撑防滑按钮。 绝热材料具有高强度,高密度,低导热性和高膨胀系数,如石英玻璃,玻璃玻璃,硬质玻璃和钠钙玻璃。
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公开(公告)号:US4975260A
公开(公告)日:1990-12-04
申请号:US333223
申请日:1989-04-05
申请人: Isao Imai , Toshitsugu Ishii , Kouichi Sueyoshi , Toshiyuki Hirao
发明人: Isao Imai , Toshitsugu Ishii , Kouichi Sueyoshi , Toshiyuki Hirao
IPC分类号: C01B21/06 , C01B21/072 , C01B21/076
CPC分类号: C01B21/06 , C01B21/072 , C01B21/076 , C01P2004/61 , C01P2004/62
摘要: Metal nitride powder is prepared by heating a mixture substantially containing powder of a metal oxide or a metal hydroxide in a mixed gas of ammonia gas (NH.sub.3) and a hydrocarbon gas (CmHn) at a temperature ranging from 1300.degree. C. to 1,600.degree. C., in which the mixed gas has a ratio of ammonia gas (NH.sub.3) to hydrocarbon gas (CmHn) translated into CH.sub.4, ranging from 10 (NH.sub.3) to 1.0 (CH.sub.4) to 2,000 (NH.sub.3) to 1 (CH.sub.4), by volume.The metal nitride powder contains lesser amounts of oxygen and carbon.
摘要翻译: 通过在1300℃〜1600℃的温度下,将氨气(NH 3)和烃类气体(C m H n)的混合气体中的金属氧化物或金属氢氧化物粉末的混合物加热而制备金属氮化物粉末 ,其中混合气体具有从10(NH 3)至1.0(CH 4)至2,000(NH 3)至1(CH 4)的氨气比(NH 3)与烃气体(C m H n)的比例转化为CH 4,体积 。 金属氮化物粉末含有较少量的氧和碳。
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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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