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    Sealing compositions for bonding ceramics to metals
    1.
    发明授权
    Sealing compositions for bonding ceramics to metals 失效
    密封用于将陶瓷与金属结合的组合物

    公开(公告)号：US3469729A

    公开(公告)日：1969-09-30

    申请号：US3469729D

    申请日：1966-06-30

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： GREKILA RICHARD B ,  HO SHIH-MING ,  KNOCHEL WILLIAM J ,  LIN FRANCIS C M

    IPC: C03C3/062 ,  C03C3/12 ,  C03C8/02 ,  C04B37/00 ,  C04B37/02 ,  C09J1/00 ,  H01J61/36 ,  H01K1/42 ,  C04B39/00

    CPC classification number: C04B37/005 ,  C03C3/062 ,  C03C3/125 ,  C04B35/6365 ,  C04B37/025 ,  C04B2235/5436 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/76 ,  C04B2237/06 ,  C04B2237/064 ,  C04B2237/09 ,  C04B2237/343 ,  C04B2237/403 ,  C04B2237/62 ,  C04B2237/706 ,  C04B2237/80 ,  C04B2237/84

    Abstract: 1,173,386. Ceramic seals. WESTINGHOUSE ELECTRIC CORP. 26 April, 1967 [30 June, 1966], No. 19145/67. Heading B3V. [Also in Division C1] A method of sealing ceramic or refractory metal members to ceramic members comprises applying a sealing composition to the members, securing the sealing areas together, and heating the assembly to secure a bond, the composition of the sealing material after the sealing operation being, by weight per cent: and 0.5-10% of at least one of: SiO 2 BaO, ZrO 2 , SrO, TiO 2 , BeO, ThO 2 , Y 2 O 3 . Also included may be 0À5-3À5% by weight of Nd 2 O 3 , Ta 2 O 5 , W0 3 , Nb 2 O 5 , V 2 O 5 . A chart is included listing examples. The method may be applied to sealing Ta, Nb or ceramic, e.g. alumina, discs 12; 14 or caps on the ends of high-temperature metal vapour lamps 10 of alumina. Alumina rings 24, 26 are sealed to the discs 12, 14. One method preparing the sealing composition includes mixing 1 mole of CaCO 2 with ¢ a mole of alumina in powder form and adding the selected other constituents. Amyl acetate and cellulose acetate are included to obtain the desired viscosity and adhesion, and the composition is applied by brushing or spraying, after sand-blasting and cleaning the metal. The seals are air-dried before the assembly is located in a molybdenum clamping fixture, Fig. 2, having a tantalum R.F. susceptor 40. Alternatively, the sealing composition may be formed into compacted preforms. The fixture is placed on a rod. 48 within the R.F. coil of a vacuum furnace and subjected to a heating schedule, Fig. 3 (not shown). Another method of preparing the sealing composition to avoid a degassing period in the furnace includes melting the composition in a gas crucible furnace, pouring the molton mixture into water, ball-milling the mixture in distilled water to a fine powder, adding amyl acetate and cellulose acetate and subjecting the mixture to ultrasonic vibrations. A different firing schedule, Fig. 4 (not shown), may then be used. After evacuation of the tube 10 and insertion of the discharge sustaining filling, the tantalum tube 18 is closed and welded at 22. The expansion ratio of the tube 10, end plates and the sealing material match each other.

    Tubular electrode support for ceramic discharge lamp
    2.
    发明授权
    Tubular electrode support for ceramic discharge lamp 失效
    陶瓷放电灯的管状电极支架

    公开(公告)号：US3882344A

    公开(公告)日：1975-05-06

    申请号：US44761974

    申请日：1974-03-04

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： KNOCHEL WILLIAM J ,  WERNER LEO C ,  LIN FRANCIS C M

    IPC: H01J61/36 ,  H01J1/94 ,  H01J61/06

    CPC classification number: H01J61/36

    Abstract: An improved electrode support element for ceramic discharge lamps formed from the exhaust and fill tubulation extending through one or both of the arc tube refractory metal end caps. A section of the tubulation adjacent to but spaced from the inwardly extending end is notched out and that portion between the notch and the end is collapsed against the opposite side wall to form a double walled, U-shaped electrode rod gripping portion with improved centering and holding capabilities.

    Abstract translation: 一种用于陶瓷放电灯的改进的电极支撑元件，其由通过一个或两个电弧管难熔金属端盖延伸的排气和填充管形成。 一部分与内向延伸的端部相邻但间隔开的管道被切掉，凹口和端部之间的部分折叠在相对的侧壁上，以形成双壁的U形电极棒夹持部分，其具有改进的定心和 持有能力。

    Electrode support element for ceramic discharge lamp
    6.
    发明授权
    Electrode support element for ceramic discharge lamp 失效
    陶瓷放电灯用电极支撑元件

    公开(公告)号：US3872341A

    公开(公告)日：1975-03-18

    申请号：US44761874

    申请日：1974-03-04

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： WERNER LEO C ,  LIN FRANCIS C M ,  KNOCHEL WILLIAM J

    IPC: H01J61/36 ,  H01J17/04

    CPC classification number: H01J61/36

    Abstract: An improved electrode support element for ceramic discharge lamps formed from a single refractory metal strip and including at one end a pair of oppositely directed foot portions and at the other end a U-shaped electrode gripping portion with each end interconnected by a relatively rigid blade portion. The foot portions are welded to the inner surface of the refractory metal end closure or cap and provide improved centering and rigidity to the electrode mount.

    Abstract translation: 一种用于陶瓷放电灯的改进的电极支撑元件，其由单个难熔金属带形成，并且在一端包括一对相对定向的脚部，并且在另一端包括U形电极夹持部分，每个端部由相对刚性的刀片部分 。 脚部焊接到耐火金属端盖或盖的内表面，并且为电极座提供改进的定心和刚性。

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