Switch and arc extinguishing material for use therein
    1.
    发明授权
    Switch and arc extinguishing material for use therein 失效
    用于其中的开关和灭弧材料

    公开(公告)号:US5841088A

    公开(公告)日:1998-11-24

    申请号:US399578

    申请日:1995-03-07

    IPC分类号: H01H9/30 H01H33/02

    CPC分类号: H01H9/302 H01H9/30

    摘要: A switch comprising a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc. The switch according to the present invention is applicable to a switch expected to generate an arc upon interruption of electric current flowing therethrough such as a circuit breaker, current-limiting device or electromagnetic contactor and is capable of immediately extinguishing the arc and inhibiting the decrease in insulation resistance within and around the arc extinguishing chamber and at inner wall surfaces of the switch case.

    摘要翻译: 一种开关,包括开关壳体,适于打开和关闭的触点,设置在触点附近的灭弧室,以及能够减少金属颗粒和游离碳从待配置的组件散射的量的灭弧材料 当触点打开或闭合时产生的电弧的切换或能够使金属颗粒和游离碳绝缘转化为绝缘体,从而抑制在电弧的产生和消除时预期发生的电弧阻力的降低,以及 预期在灭弧室内和周围以及在电弧灭弧之后在开关壳体的内壁表面发生绝缘电阻的降低。 根据本发明的开关可应用于期望在诸如断路器,限流装置或电磁接触器之类的电流中断时产生电弧的开关,并且能够立即熄灭电弧并且抑制 灭弧室内部和周围以及开关箱内壁表面的绝缘电阻。

    Switch and arc extinguishing material for use therein
    2.
    发明授权
    Switch and arc extinguishing material for use therein 失效
    用于其中的开关和灭弧材料

    公开(公告)号:US5990440A

    公开(公告)日:1999-11-23

    申请号:US941090

    申请日:1997-09-30

    IPC分类号: H01H9/30 H01H33/08

    CPC分类号: H01H9/302 H01H9/30

    摘要: A switch containing a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc. The switch is applicable to a switch expected to generate an arc upon interruption of electric current flowing therethrough such as a circuit breaker, current-limiting device or electromagnetic contactor and is capable of immediately extinguishing the arc and inhibiting the decrease in insulation resistance within and around the arc extinguishing chamber and at inner wall surfaces of the switch case.

    摘要翻译: 包含开关壳体的开关,适于打开和关闭的触点,设置在触点附近的灭弧室,以及能够减少金属颗粒和游离碳从待配置的组件散射的量的灭弧材料 当触点打开或闭合时产生的电弧的切换或能够使金属颗粒和游离碳绝缘转化为绝缘体,从而抑制在电弧的产生和消除时预期发生的电弧阻力的降低,以及 预期在灭弧室内和周围以及在电弧灭弧之后在开关壳体的内壁表面发生绝缘电阻的降低。 该开关适用于预期在中断流过其中的电流(例如断路器,限流装置或电磁接触器)时产生电弧的开关,并且能够立即消除电弧并且抑制其内部和周围的绝缘电阻的降低 灭弧室和开关箱的内壁表面。

    Process for preparing mica-containing ceramic composite
    4.
    发明授权
    Process for preparing mica-containing ceramic composite 失效
    制备含云母陶瓷复合材料的方法

    公开(公告)号:US5180532A

    公开(公告)日:1993-01-19

    申请号:US461911

    申请日:1990-01-08

    摘要: Mica-containing ceramic composite having excellent characteristics such as capability of machining work, a small thermal expansion coefficient, high heat-shock resistant temperature difference as well as high heat deformation temperature, is prepared by: a) preparing powder mixture by blending 20 to 50% by weight of mica powder, 15 to 40% by weight of zinc oxide powder, 10 to 20% by weight of silica powder, 8 to 20% by weight of boric acid powder, and 4 to 20% by weight of cordierite powder; b) heating the powder mixture at a temperature of from 940.degree. C. to 1,050.degree. C. to prepare baked product; c) pulverizing the baked product into very fine powder to thereby obtain a shaping material; d) adding an organic binder to the shaping material to prepare a shaping composition; and e) shaping the shaping composition into a shaped body and heating a shaped body at a temperature ranging from 940.degree. C. to 1,050.degree. C. with simultaneous application of pressure to the shaped body to render the same into a baked body.

    摘要翻译: 通过以下方法制备具有加工性能优异,热膨胀系数小,耐热冲击温差高,热变形温度高等特性的含云母陶瓷复合体,其通过以下方法制备:a)通过混合20〜50 云母粉重量百分数,氧化锌粉末重量为15〜40%,二氧化硅粉末为10〜20重量%,硼酸粉末为8〜20重量%,堇青石粉末为4〜20重量%。 b)在940℃至1050℃的温度下加热粉末混合物以制备烘烤产品; c)将烘焙产品粉碎成非常细的粉末,从而获得成型材料; d)向成型材料中加入有机粘合剂以制备成型组合物; 和e)将成形组合物成形为成形体,并在940℃至1050℃的温度范围内加热成型体,同时向成形体施加压力以使其成为烘烤体。

    Method for producing air-tight, heat-resistant plate
    5.
    发明授权
    Method for producing air-tight, heat-resistant plate 失效
    生产气密,耐热板的方法

    公开(公告)号:US4746346A

    公开(公告)日:1988-05-24

    申请号:US7094

    申请日:1987-01-27

    摘要: A method for producing an air-tight, heat-resistant plate for a particular use in manufacturing bulbous fluorescent lamp, which comprises: preparing a shaping material by mixing an inorganic filler composed of alumina powder and silica powder in a specified compositional ratio, and glass powder having a thermal expansion coefficient of 8.5 to 11.5.times.10.sup.-6 /.degree.C., both inorganic filler and glass material being blended at a predetermined ratio then, forming the shaping material into a shaped product of any desired configuration by a known shaping method; thereafter heating this shaped body to a temperature, at which the glass powder used becomes molten and fused, thereby rendering it to be a burned body.

    摘要翻译: 一种用于制造球状荧光灯的特别用途的气密耐热板的方法,其包括:通过将由氧化铝粉末和二氧化硅粉末组成的无机填料以规定的组成比混合而制备成型材料,以及玻璃 粉末,其热膨胀系数为8.5〜11.5×10 -6 /℃,无机填料和玻璃材料以预定比例混合,然后通过已知的成型方法将成型材料形成成任何所需构型的成形制品; 然后将该成形体加热到使用的玻璃粉熔融融合的温度,从而使其成为烧结体。