Skid button structure
    1.
    发明授权
    Skid button structure 失效
    滑动按钮结构

    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。

    Process for preparing metal nitride powder
    2.
    发明授权
    Process for preparing metal nitride powder 失效
    制备金属氮化物粉末的方法

    公开(公告)号:US4975260A

    公开(公告)日:1990-12-04

    申请号:US333223

    申请日:1989-04-05

    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。