Method of manufacturing a scandate dispenser cathode and dispenser
cathode manufactured by means of the method
    2.
    发明授权
    Method of manufacturing a scandate dispenser cathode and dispenser cathode manufactured by means of the method 失效
    通过该方法制造钪酸盐分配器阴极和分配器阴极的方法

    公开(公告)号:US4594220A

    公开(公告)日:1986-06-10

    申请号:US685678

    申请日:1984-12-24

    CPC分类号: H01J9/047 H01J1/28

    摘要: A method of manufacturing a scandate dispenser cathode having a matrix at least the top layer of which at the surface consists substantially of tungsten (W) and scandium oxide (Sc.sub.2 O.sub.3) and with emitter material in or below said matrix. If said method comprises the following steps:(a) compressing a porous plug of tungsten powder(b) heating said plug in a non-reactive atmosphere and in contact with scandium to above the melting temperature of scandium,(c) cooling the plug in a hydrogen (H.sub.2) atmosphere(d) pulverizing the plug to fragments(e) heating said fragments to approximately 800.degree. C. and firing them at this temperature for a few to a few tens of minutes in a hydrogen atmosphere and slowly cooling in said hydrogen atmosphere(f) grinding the fragments to scandium hydride-tungsten powder (ScH.sub.2 /W)(g) compressing a matrix or a top layer on a matrix of pure tungsten from said ScH.sub.2 /W powder or from a mixture of this powder with tungsten powder(h) sintering and cooling the said matrix(i) bringing emissive material into the cathode, a scandate dispenser cathode is obtained the recovery of which after ion bombardment occurs better than in cathodes having Sc.sub.2 O.sub.3 grains. The scandium is also distributed more homogeneously in the cathode than in cathodes having Sc.sub.2 O.sub.3 grains.

    摘要翻译: 一种制造钪酸盐分配器阴极的方法,其具有基体至少其表面的顶层基本上由钨(W)和氧化钪(Sc 2 O 3)构成的基体和在所述基体内或之下的发射体材料。 如果所述方法包括以下步骤:(a)压缩钨粉的多孔塞(b)将所述塞在非反应性气氛中加热并与钪接触以高于钪的熔融温度,(c)将塞冷却 氢气(H2)气氛(d)将塞子粉碎成碎片(e)将所述碎片加热至约800℃,并在该温度下在氢气气氛中将其烧制几至几十分钟,并在所述 氢气气氛(f)将碎片研磨成氢化钨 - 钨粉(ScH2 / W)(g)从所述ScH2 / W粉末或从该粉末与钨的混合物中压制纯钨基体上的基体或顶层 粉末(h)烧结和冷却所述基质(i)将发射材料引入阴极,得到钪酸盐分配器阴极,其在离子轰击之后的回收比具有Sc 2 O 3晶粒的阴极更好地发生。 钪也在阴极中分布得更均匀,而不是具有Sc2O3晶粒的阴极。

    Ink-jet printer
    3.
    发明授权
    Ink-jet printer 失效
    喷墨打印机

    公开(公告)号:US4730196A

    公开(公告)日:1988-03-08

    申请号:US31220

    申请日:1987-03-26

    摘要: The ink-jet printer contains an ink-jet nozzle (1) connected to a pressure chamber (5) which is recessed in a body (7) and is covered with a diaphragm (13, 15) on which a driving element (17) is fitted. The diaphragm contains an outer plate (13) on which the driving element (17) is fitted and an inner plate (15) provided with an oblong opening (19) which extends between the pressure chamber (5) and the ink-feed channel (11). The opening (19) forms a narrow passage with very accurately defined dimensions between the ink-feed channel (11) and the pressure chamber (5).

    摘要翻译: 喷墨打印机包括连接到压入室(5)的喷墨喷嘴(1),所述喷射喷嘴(1)凹入主体(7)并被其上驱动元件(17)的隔膜(13,15)覆盖, 装配。 隔膜包含外部板(13),驱动元件(17)装配在该外板上,内板(15)设置有在压力室(5)和供墨通道( 11)。 开口(19)在墨水供给通道(11)和压力室(5)之间形成具有非常精确限定的尺寸的窄通道。

    Color television display tube and method of manufacturing same
    6.
    发明授权
    Color television display tube and method of manufacturing same 失效
    彩色电视显示管及其制造方法

    公开(公告)号:US4207656A

    公开(公告)日:1980-06-17

    申请号:US928171

    申请日:1978-07-26

    IPC分类号: H01J9/14 H01J29/81 H01J9/18

    CPC分类号: H01J29/81 H01J9/142

    摘要: In an assembly of at least two electrodes which are connected together in an insulating manner, said electrodes are kept at a given distance from each other by at least one member of an electrically insulating material situated between the electrodes which comprises a core which determines the distance between the electrodes and a jacket which directly adheres to the electrode material by heating. The material of the core has a higher melting point than the material of the jacket so that the core during effecting a connection between the jacket and the electrode material maintains its shape.

    摘要翻译: 在以绝缘方式连接在一起的至少两个电极的组件中,所述电极通过位于电极之间的电绝缘材料的至少一个构件保持在给定距离处,该电绝缘材料包括确定距离 电极和通过加热直接粘附到电极材料的护套。 芯的材料具有比夹套的材料更高的熔点,使得芯在实现夹套和电极材料之间的连接时保持其形状。

    Vacuum-tight thermocompression seal involving the formation of an oxide
skin
    7.
    发明授权
    Vacuum-tight thermocompression seal involving the formation of an oxide skin 失效
    涉及形成氧化皮的真空密封热压密封

    公开(公告)号:US4749119A

    公开(公告)日:1988-06-07

    申请号:US854257

    申请日:1986-04-21

    IPC分类号: B23K20/24 H01J9/26

    CPC分类号: H01J9/263 B23K20/24

    摘要: For thermocompression sealing at least one of the materials to be joined is provided with an oxide skin before or during the sealing operation. The oxide skin can be formed, for example by firing in air. It has been found that the method is particularly advantageous for seals between a CrNi-alloy and, for example a second element which consists of aluminium, for example the seal between an Al entrance window and a CrNi-steel envelope of an X-ray intensifier tube. Notably by addition of an intermediate material, in particular aluminium, seals can thus be realized between many materials.

    摘要翻译: 对于热压密封,至少一种要接合的材料在密封操作之前或期间设置有氧化皮。 可以例如通过在空气中烧制来形成氧化皮。 已经发现,该方法对于CrNi合金和例如由铝组成的第二元件之间的密封特别有利,例如,铝入口窗口和X射线增强器的CrNi钢外壳之间的密封 管。 因此,通过添加中间材料,特别是铝,可以在许多材料之间实现密封。

    Display tube with fluid cooled window
    8.
    发明授权
    Display tube with fluid cooled window 失效
    带流体冷却窗的显示管

    公开(公告)号:US4645966A

    公开(公告)日:1987-02-24

    申请号:US873865

    申请日:1986-06-12

    摘要: A display window (11) of a display tube is manufactured from a plate (21) having grooves (22), which plate is fused to a plate (20), so that ducts (25) are present in the display window (11). The phosphor screen (14) is provided on the inside of plate (20). The ducts (25) communicate at one end with a common supply duct (26) having an inlet aperture (27) and communicate at the other end with a common exhaust duct (28) having an outlet aperture (29). A coolant is forced through the ducts (25) for cooling the phosphor screen (14).

    摘要翻译: 显示管的显示窗(11)由具有凹槽(22)的板(21)制成,该板与板(20)熔合,使得管道(25)存在于显示窗(11)中, 。 荧光屏(14)设置在板(20)的内侧。 管道(25)的一端与具有入口孔(27)的公共供应管道(26)连通并且在另一端与具有出口孔(29)的公共排气管道(28)连通。 冷却剂被迫通过用于冷却荧光屏(14)的管道(25)。