Apparatus for detecting gaseous discharge in vacuum furnaces
    2.
    发明授权
    Apparatus for detecting gaseous discharge in vacuum furnaces 失效
    用于检测真空灭火器中的气体放电的装置

    公开(公告)号:US5193100A

    公开(公告)日:1993-03-09

    申请号:US718808

    申请日:1991-06-21

    摘要: An electrically heated vacuum furnace is provided with special lead-through devices for transmitting current to the heating elements. In order to recognize gas discharges which can occur between a lead-through and a tank wall, the insulation of the lead-through is surrounded by an auxiliary electrode. A thermocouple can also be used instead of an auxiliary electrode. A signal derived from the auxiliary electrode can be used to shut off the furnace power to avoid damage thereto.

    摘要翻译: 电加热真空炉设置有用于将电流传递到加热元件的特殊导通装置。 为了识别可能发生在引入通道和罐壁之间的气体放电,引线的绝缘被辅助电极包围。 也可以使用热电偶来代替辅助电极。 可以使用从辅助电极得到的信号来切断炉的功率,以避免损坏炉。

    High vacuum seal
    3.
    发明授权
    High vacuum seal 失效
    高真空密封

    公开(公告)号:US4244557A

    公开(公告)日:1981-01-13

    申请号:US948308

    申请日:1978-10-03

    IPC分类号: F16K3/18 F16K51/02 F16K25/00

    CPC分类号: F16K3/18 F16K51/02

    摘要: A vacuum-tight closure assembly includes a valve seat; a spreadable valve plate movable into a closed position for assuming a spreaded state in which it sealingly engages the valve seat; and a guide arrangement for a centered guiding of the valve plate during its motion into the closed position. The guide arrangement includes guide faces located in the vicinity of and stationarily with respect to the valve seat and counterguide faces located on and movable with the valve plate. The guide faces cooperate with the counterguide faces during the motion of the valve plate towards the closed position.

    摘要翻译: 真空密封闭合组件包括阀座; 可移动的阀板可移动到关闭位置,用于假设其密封地接合阀座的扩张状态; 以及用于阀板在其运动进入关闭位置期间的中心导向的引导装置。 引导装置包括位于阀座附近并相对于阀座固定的导向面和位于阀板上并可与阀板移动的对向面。 在阀板朝向关闭位置的运动期间,导向面与反向面协作。