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    Moldings composed of cordierite and a process for producing them
    1.
    发明授权
    Moldings composed of cordierite and a process for producing them 失效
    CORDIERITE组成的模具及其生产工艺

    公开(公告)号：US5061421A

    公开(公告)日：1991-10-29

    申请号：US321401

    申请日：1989-03-10

    申请人： Paul Girmscheid, deceased ,  Helmut Stuhler ,  Gisbert Schulze

    发明人： Paul Girmscheid, deceased ,  Helmut Stuhler ,  Gisbert Schulze

    IPC分类号： B28B17/02 ,  B29B7/56 ,  C04B35/195

    CPC分类号： C04B35/195 ,  B28B17/02 ,  B29B7/564

    摘要： For producing moldings composed of cordierite, a batch, which gives the composition of cordierite and contains clay and/or kaolin as well as soapstone and/or talc and also water and an organic aid, is subjected to shear mixing. For this purpose, the batch is placed between 2 bodies, which are at a small distance and move relative to one another, and at the same time the batch is subjected to a shear stress. Preferably, the batch is filled into the gap formed by 2 almost touching cylindrical shear rollers which rotate at different speeds or run in opposite directions. The batch is then deformed to give a molding, and the molding is fired until the cordierite phase is formed.Cordierite bodies of very low coefficients of thermal expansion (for example at most 1.1.times.10.sup.-6 /.degree.C. in all three spatial directions) can be obtained.

    摘要翻译： 为了生产由堇青石组成的模制品，将经堇青石组合并含有粘土和/或高岭土以及皂石和/或滑石以及水和有机助剂的批料进行剪切混合。 为此，将批料放置在两个相对较小距离的物体之间，并相互相对移动，同时批料受到剪切应力。 优选地，将批料填充到由两个几乎接触的圆柱形剪切辊形成的间隙中，所述两个几何接触的圆柱形剪切辊以不同的速度旋转或以相反的方向运行。 然后将批料变形以得到模制品，并且将模塑件烧制直到形成堇青石相。 可以获得非常低的热膨胀系数（在所有三个空间方向上为至多1.1×10 -6 /℃）的堇青石体。

    Process for the preparation of a silicate-bound material
    3.
    发明授权
    Process for the preparation of a silicate-bound material 失效
    制备硅酸盐结合材料的方法

    公开(公告)号：US5389583A

    公开(公告)日：1995-02-14

    申请号：US130087

    申请日：1993-09-20

    申请人： Gisbert Schulze

    发明人： Gisbert Schulze

    IPC分类号： C04B35/622 ,  C04B35/111 ,  C04B35/18 ,  C04B35/63 ,  C03C8/14

    CPC分类号： C04B35/111 ,  C04B35/6316

    摘要： To prepare a ceramic molded article based on silicate or based on alumina, a ceramic starting material containing clay, kaolin, steatite and/or alumina is mixed with a silicate-containing flux, the mixture is made into a molded article and the molded article is heated and dense-sintered. At least some of the flux used is composed of a preferably alkali metal-free glass frit whose beginning of softening is above 850.degree. C.Advantageously, an alkali metal-free boron silicate glass is used in amounts of 0.1-20% by weight of the starting mixture. This process makes it possible to prepare, inter alia, ceramic molded articles comprising a glass phase and a crystalline portion substantially containing Al.sub.2 O.sub.3, in which the glass phase content is 22-34% by weight and comprises 50-68% by weight of SiO.sub.2, 12-22% of Al.sub.2 O.sub.3, 0.1-4.5% of Fe.sub.2 O.sub.3, 0.1-13% of TiO.sub.2, 0.1-23% of CaO, 0.1-9% of MgO, 0-7% of Na.sub.2 O, 0-11% of K.sub.2 O, 0-9% of BaO and 0-23% of B.sub.2 O.sub.3 and the crystalline portion comprises 1-25% of SiO.sub.2, 70-80% of Al.sub.2 O.sub.3, 0.1-1% of Fe.sub.2 O.sub.3, 0.1-3% of TiO.sub.2, 0.1-5% of CaO, 0.1-2% of MgO, 0-1.5% of Na.sub.2 O, 0-2.5% of K.sub.2 O, 0-2% of Bao and 0-5% of B.sub.2 O.sub.3.

    摘要翻译： 为了制备基于硅酸盐或基于氧化铝的陶瓷成型体，将含有粘土，高岭土，滑石和/或氧化铝的陶瓷原料与含硅酸盐的助熔剂混合，将该混合物制成模塑制品， 加热和致密烧结。 所使用的助焊剂的至少一些由优选不含碱金属的玻璃料组成，其开始软化在850℃以上。有利地，不含碱金属的硼硅酸盐玻璃的用量为0.1-20重量％ 起始混合物。 该方法特别可以制备包含玻璃相和基本上含有Al 2 O 3的结晶部分的陶瓷模塑制品，其中玻璃相含量为22-34重量％，并且包含50-68重量％的SiO 2， 12-22％的Al2O3，0.1-4.5％的Fe2O3，0.1-13％的TiO2，0.1-23％的CaO，0.1-9％的MgO，0-7％的Na2O，0-11％的K2O，0 -9％的BaO和0-23％的B2O3，结晶部分包括1-25％的SiO2，70-80％的Al2O3，0.1-1％的Fe2O3，0.1-3％的TiO2，0.1-5％的 CaO，0.1-2％的MgO，0-1.5％的Na2O，0-2.5％的K2O，0-2％的Bao和0-5％的B2O3。

    Axially directed brush seal for rotor-stator arrangements
    4.
    发明授权
    Axially directed brush seal for rotor-stator arrangements 失效
    用于转子 - 定子装置的轴向刷密封

    公开(公告)号：US5927721A

    公开(公告)日：1999-07-27

    申请号：US963556

    申请日：1997-11-03

    申请人： Gisbert Schulze ,  Bernhard Woehrl

    发明人： Gisbert Schulze ,  Bernhard Woehrl

    IPC分类号： F16J15/453 ,  F16J15/16 ,  F16J15/3288 ,  F01D11/18

    CPC分类号： F16J15/3288 ,  F05B2220/302

    摘要： A brush seal (3) is provided to seal two differently pressurized spaces (R.sub.1, R.sub.2) on opposite sides of a rotor (1) cooperating with a stator (2), for example in a gas turbine engine, around a circumferential gap between the rotor (1) and the stator (2). The brush seal (3) includes seal bristles (5) having free ends extending annularly concentrically and parallel to a rotation axis of the rotor (1) and fixed ends received in a seal housing (6). A perimeter rim of the rotor (1) has an axis-concentric circumferential groove (7) therein, and the free ends of the seal bristles (5) reach into this circumferential groove (7). During operation of the rotor (1), fluid boundary layers are formed respectively between the seal bristles (5) and the side walls (9A, 9B) of the circumferential groove (7). The boundary layers (G.sub.I, G.sub.A) cause the seal bristles (5) to float up out of contact with and substantially centered between the side walls of the circumferential groove (7), and also enhance the seal effect. The axis-parallel orientation of the bristles (5) reduces the radial height of the seal arrangement, and ensures that good radial compensation is still achieved.

    摘要翻译： 提供刷密封件（3）以在与定子（2）（例如在燃气涡轮发动机中）配合的转子（1）的相对侧上的两个不同的加压空间（R1，R2）围绕第 转子（1）和定子（2）。 刷密封件（3）包括密封刷毛（5），其具有环形同心圆且平行于转子（1）的旋转轴线的自由端和容纳在密封壳体（6）中的固定端。 转子（1）的周缘在其中具有轴向同心圆周槽（7），并且密封刷毛（5）的自由端到达该周向凹槽（7）。 在转子（1）的操作期间，分别在密封刷毛（5）和周向槽（7）的侧壁（9A，9B）之间形成流体边界层。 边界层（GI，GA）使得密封刷毛（5）浮起而不与周向凹槽（7）的侧壁接触并且基本上居中，并且还增强了密封效果。 刷毛（5）的轴线平行取向减小了密封装置的径向高度，并且确保仍然实现良好的径向补偿。