Oxonitrides of the formula LnTaON.sub.2 with enhanced brightness and a
process for their use
    52.
    发明授权
    Oxonitrides of the formula LnTaON.sub.2 with enhanced brightness and a process for their use 失效
    具有增强亮度的式LnTaON2的氧化氮及其使用方法

    公开(公告)号:US5693102A

    公开(公告)日:1997-12-02

    申请号:US534689

    申请日:1995-09-27

    摘要: Oxonitrides with a perovskite of the general formula LnTaOn.sub.2, where Ln is a rare-earth element, and which exhibit an enhanced brightness, are produced by annealing a powder mixture consisting of a Ta (V) compound and a Ln compound in a reducing atmosphere that contains ammonia. Added to the powder mixture being annealed is a mineralizing agent from the series of alkali metal or alkaline earth halides, Na.sub.3 AlF.sub.6, Na.sub.2 SiF.sub.6, AlF.sub.3 or of the ammonia salts of carbonic acid or a mono- or dicarboxylic acid with 1 to 4 C atoms in a quantity of 0.1 to 10 parts by weight, relative to 1 part by weight of the mixture of the Ta and Ln compounds. Such oxonitrides can be used as pigments that are yellow-orange to reddish brown in color.

    摘要翻译: 通过在还原气氛中还原由Ta(V)化合物和Ln化合物组成的粉末混合物来制备具有通式LnTaOn2的钙钛矿的氧化氮,其中Ln是稀土元素,并且具有增强的亮度, 含有氨。 加入待退火的粉末混合物是一系列碱金属或碱土金属卤化物,Na 3 AlF 6,Na 2 SiF 6,AlF 3或碳酸的氨盐或具有1至4个C原子的单羧酸或二羧酸的矿化剂, 相对于1重量份的Ta和Ln化合物的混合物,其量为0.1至10重量份。 这种氧氮化物可以用作黄橙色至红棕色的颜料。

    Adjustable fluid swivel
    54.
    发明授权
    Adjustable fluid swivel 失效
    可调节液体旋转

    公开(公告)号:US4828292A

    公开(公告)日:1989-05-09

    申请号:US139911

    申请日:1987-12-31

    申请人: Martin Jansen

    发明人: Martin Jansen

    IPC分类号: F16L27/08 F16L27/087

    CPC分类号: F16L27/087

    摘要: A fluid swivel is described, which enable the measurement and the adjustment of separation of seal surfaces. The fluid swivel includes inner and outer walls that are rotatably coupled about an axis and that form an annular chamber and a pair of gaps extending from the chamber. A hollow region is formed along each gap for holding a face seal, and the gap forms an extrusion gap portion extending radially from each hollow region. The inner and outer walls form axially-spaced wall surfaces adjacent to the hollow region, and one of the walls has a gage-passing passage leading from the outside of the wall to the space between the wall surfaces to pass a gage for measuring the separation gap between the wall surfaces. One of the walls includes a plurality of parts and also includes shims between the parts for enabling slight adjustment of the spacing between the seal surfaces, depending on the thickness of the shims.

    摘要翻译: 描述了一种流体旋转装置,其能够测量和调节密封表面的分离。 流体旋转件包括围绕轴线可旋转地联接并且形成环形室和从腔室延伸的一对间隙的内壁和外壁。 沿着每个间隙形成中空区以保持面密封,并且间隙形成从每个中空区域径向延伸的挤出间隙部分。 内壁和外壁形成与中空区域相邻的轴向隔开的壁表面,并且其中一个壁具有从壁的外部通向壁表面之间的空间的通过通道,以通过用于测量分离的计量器 墙面之间的间隙。 其中一个壁包括多个部件,并且还包括在这些部件之间的垫片,用于根据垫片的厚度能够轻微地调节密封表面之间的间距。