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    Contact material for a vacuum interrupter
    3.
    发明授权
    Contact material for a vacuum interrupter 失效
    真空断路器的接触材料

    公开(公告)号：US5420384A

    公开(公告)日：1995-05-30

    申请号：US214016

    申请日：1994-03-15

    申请人： Tsutomu Okutomi ,  Atsushi Yamamoto ,  Tsuneyo Seki ,  Mikio Okawa ,  Mitsutaka Honma

    发明人： Tsutomu Okutomi ,  Atsushi Yamamoto ,  Tsuneyo Seki ,  Mikio Okawa ,  Mitsutaka Honma

    IPC分类号： H01H33/66 ,  H01H1/02 ,  H01H1/0233 ,  H01H33/00

    CPC分类号： H01H1/0203 ,  H01H1/0233 ,  H01H33/664

    摘要： A contact material for a vacuum interrupter includes: (a) from 25 to 70% by volume of a highly conductive component selected from the group consisting of Ag, Cu and combinations thereof, and (b) from 30 to 75% by volume of an arc-proof component comprising a carbide of an element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W and combinations thereof, wherein the average grain size of the said arc-proof component is from 0.3 to 3 micrometers and the average grain distance of the arc-proof component is within the range of 0.1 to 1 micrometer. Contacts for a vacuum interrupter obtained from the contact material have improved wear resistance, large current interruption characteristic, wear resistance, and chopping characteristic, and low temperature rise characteristic.

    摘要翻译： 用于真空断路器的接触材料包括：（a）25至70体积％的选自Ag，Cu及其组合的高导电组分，和（b）30至75体积％的 所述防弧成分包括选自Ti，Zr，Hf，V，Nb，Ta，Cr，Mo，W的元素的碳化物及其组合，其中所述防弧成分的平均粒径为 0.3〜3微米，防弧成分的平均晶粒距离在0.1〜1微米的范围内。 从接触材料获得的真空断路器触点具有改善的耐磨性，大电流中断特性，耐磨性和斩波特性，以及低温特性。

    Method of manufacturing a vacuum interrupter
    6.
    发明授权
    Method of manufacturing a vacuum interrupter 失效
    制造真空断路器的方法

    公开(公告)号：US5687472A

    公开(公告)日：1997-11-18

    申请号：US433015

    申请日：1995-05-03

    申请人： Mitsutaka Honma ,  Hiromichi Somei ,  Tadahiro Aihara ,  Tsuneyo Seki ,  Atsushi Yamamoto

    发明人： Mitsutaka Honma ,  Hiromichi Somei ,  Tadahiro Aihara ,  Tsuneyo Seki ,  Atsushi Yamamoto

    IPC分类号： B23K1/18 ,  H01H33/66 ,  H01H11/06 ,  B23K31/02

    CPC分类号： H01H33/66 ,  H01H2033/66215 ,  H01H2033/66276 ,  H01H33/66207 ,  H01H33/66261 ,  Y10T29/49105

    摘要： A method for manufacturing a vacuum interrupter including, a vacuum enclosure composed of an insulating tube sealed by metal flanges, a pair of electrodes in the vacuum enclosure which are able to make and break contact, and a pair of conducting shafts. The method includes the steps of preparing a fixed-side assembly composed of a fixed electrode, a fixed-side conducting shaft and a fixed-side flange jointed as one unit, preparing a movable-side subassembly composed of a movable electrode, a movable-side conducting shaft and a movable-side flange jointed as one unit, preparing an insulating tube subassembly composed of the insulating tube, preparing an assembly such that the movable-side, insulating tube, and fixed-side subassemblies are superimposed with first solders for gas-tight sealing being inserted between the movable-side and fixed-side subassemblies and end surfaces of the insulating tube subassembly and with a second solder for contact soldering being inserted between the contact and the electrode, and heating and evacuating the assembly in a vacuum furnace to evacuate inside the vacuum enclosure and to solder by the first solders and the second solder, thereby to obtain the vacuum interrupter. Whereby gas-tight soldering and soldering of the contact and the electrode are carried out simultaneously in the heating and evacuating step.

    摘要翻译： 一种真空断续器的制造方法，其特征在于，包括由金属法兰密封的绝缘管构成的真空封壳，能够断开接触的真空封壳中的一对电极和一对导电轴。 该方法包括以下步骤：制备由固定电极，固定侧导电轴和作为一个单元接合的固定侧凸缘组成的固定侧组件，制备由可动电极，可移动电极组成的可动侧组件， 侧面导电轴和作为一个单元接合的可动侧凸缘，制备由绝缘管构成的绝缘管子组件，制备组合件，使得可动侧绝缘管和固定侧组件与第一气体焊料重叠 密封被插入在可动侧和固定侧子组件和绝缘管子组件的端面之间，并且用于接触焊接的第二焊料插入在接触件和电极之间，并且在真空炉中加热和抽真空组件 在真空外壳内抽真空并通过第一焊料和第二焊料进行焊接，从而获得真空断路器。 在加热和抽空步骤中同时进行触点和电极的气密焊接和焊接。

    Vacuum valve
    7.
    发明授权
    Vacuum valve 失效
    真空阀

    公开(公告)号：US06376791B1

    公开(公告)日：2002-04-23

    申请号：US08836520

    申请日：1997-06-09

    申请人： Kenji Watanabe ,  Kumi Uchiyama ,  Kiyoshi Kagenaga ,  Junichi Sato ,  Eiji Kaneko ,  Mitsutaka Honma ,  Hiromichi Somei

    发明人： Kenji Watanabe ,  Kumi Uchiyama ,  Kiyoshi Kagenaga ,  Junichi Sato ,  Eiji Kaneko ,  Mitsutaka Honma ,  Hiromichi Somei

    IPC分类号： H01H3366

    CPC分类号： H01H33/6644 ,  H01H1/0206 ,  H01H33/185 ,  H01H33/6645

    摘要： A method for improving flux density in a vacuum valve, includes producing, with a vacuum valve, an axial magnetic field parallel to an arc generated between a movable and a stationary electrodes facing each other, and adjusting a magnitude of an axial flux density between the electrodes to increase gradually from a center area of the electrodes toward a circumferential area of each electrode. A point gives a maximum value (Bp) of the axial flux density at a location of and beyond 70% of a radius from the center of each electrode, and the maximum value (Bp) of the axial flux density in a radial line from the center to a circumferential end to be 1.4 to 2.4 times greater than a flux density of the center Bct of each electrode.

    摘要翻译： 一种用于提高真空阀中的通量密度的方法，包括使用真空阀产生平行于在彼此面对的可动和固定电极之间产生的电弧的轴向磁场，并且调节 电极从电极的中心区域逐渐增加到每个电极的周边区域。 点从每个电极的中心提供在半径的70％以上的位置处的轴向磁通密度的最大值（Bp），以及来自该电极的径向线中的轴向磁通密度的最大值（Bp） 中心到圆周端是每个电极的中心Bct的通量密度的1.4至2.4倍。

    Vacuum valve
    8.
    发明授权
    Vacuum valve 失效
    真空阀

    公开(公告)号：US06426475B2

    公开(公告)日：2002-07-30

    申请号：US09880035

    申请日：2001-06-14

    申请人： Kenji Watanabe ,  Kumi Uchiyama ,  Kiyoshi Kagenaga ,  Junichi Sato ,  Eiji Kaneko ,  Mitsutaka Honma ,  Hiromichi Somei

    发明人： Kenji Watanabe ,  Kumi Uchiyama ,  Kiyoshi Kagenaga ,  Junichi Sato ,  Eiji Kaneko ,  Mitsutaka Honma ,  Hiromichi Somei

    IPC分类号： H01H3375

    CPC分类号： H01H33/6644 ,  H01H1/0206 ,  H01H33/185 ,  H01H33/6645

    摘要： The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each breaking current. The axial flux density monotonously increases from the center to the circumferential area of the electrode. Here, the radial position where the axial flux density Bcr which gives the lowest arc voltage Vmin is adjusted within the region B of 20% to 40% of the radius of the electrode. The axial flux density is made monotonously increase in an outer area from the region B and give the maximum value Bp in a circumferential area equal to or beyond 70% of the radius of the electrode. The maximum value Bp is adjusted within the range C of 1.4 to 2.4 times greater than the flux density Bct given at the electrode center.

    摘要翻译： 磁通密度Bct被施加在电极的中心区域。 磁通密度Bct在比轴向通量密度Bcr的0.75至0.9倍的范围A内调节，这相对于每个断开电流给出电极之间的最低电弧电压。 轴向通量密度从电极的中心到圆周面积单调增加。 这里，在电极半径的20％〜40％的区域B内调整给出最低电弧电压Vmin的轴向通量密度Bcr的径向位置。 在区域B的外部区域的轴向通量密度单调增加，并且在等于或超过电极半径的70％的圆周区域中给出最大值Bp。 最大值Bp在比电极中心给出的通量密度Bct大1.4至2.4倍的范围C内调节。