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    Contact material for a vacuum interrupter
    2.
    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。

    Contact material for vacuum circuit breakers
    4.
    发明授权
    Contact material for vacuum circuit breakers 失效
    真空断路器的触点材料

    公开(公告)号：US5354352A

    公开(公告)日：1994-10-11

    申请号：US868114

    申请日：1992-04-14

    申请人： Tsuneyo Seki ,  Tsutomu Okutomi ,  Atsushi Yamamoto ,  Mikio Okawa ,  Kiyofumi Otobe

    发明人： Tsuneyo Seki ,  Tsutomu Okutomi ,  Atsushi Yamamoto ,  Mikio Okawa ,  Kiyofumi Otobe

    IPC分类号： C22C1/04 ,  C22C9/00 ,  C22C27/06 ,  H01H1/02 ,  H01H33/66

    CPC分类号： C22C1/04 ,  C22C9/00 ,  H01H1/0206 ,  Y10T428/12028

    摘要： Disclosed is a contact material for vacuum circuit breakers and a manufacturing process thereof. The contact material includes a copper component, a chromium component and a bismuth component, and has a metallographic structure comprising: a first phase including the copper component and the bismuth component; and a second phase including the chromium component and interposed among the first phase. In this structure, the boundary surface between the first phase and the second phase appears in a structural cross section of the alloy composition as a substantially smooth boundary line, such that when a segment of the boundary line is defined by two arbitrary points which lie on the boundary line at a straight distance of 10 .mu.m, the ratio of the length of the segment to the straight distance of 10 .mu.m lies within a range of approximately 1.0 to 1.4. Moreover, the boundary line may be approximate to a circle such that the ratio of the length of the boundary line to the length of the circumference of an ideal circle having the same area as the area defined by the boundary line lies within a range of approximately 1.0 to 1.3.In the above contact material, the chromium component is preferably included at a content of approximately 20 % to 60% by weight, and the ratio of the bismuth component to the sum of the bismuth component and the copper component preferably lies within a range of approximately 0.05% to 1.0% by weight.

    摘要翻译： 公开了一种用于真空断路器的接触材料及其制造方法。 接触材料包括铜组分，铬组分和铋组分，并且具有金相组织，包括：包含铜组分和铋组分的第一相; 和包含铬成分的第二相插入第一相中。 在该结构中，第一相和第二相之间的边界面出现在合金组成的结构横截面中，作为基本平滑的边界线，使得当边界线的一段由位于 直线距离为10μm的边界线，段的长度与直线距离为10μm的比例在约1.0至1.4的范围内。 此外，边界线可以近似于圆，使得边界线的长度与具有与由边界线限定的面积相同的面积的理想圆的圆周的长度的比率在大约的范围内 1.0〜1.3。 在上述接触材料中，铬成分的含量优选为约20重量％〜60重量％，铋成分与铋成分与铜成分的和的比例优选在大约 0.05〜1.0重量％。

    Process for manufacturing a contact material for vacuum circuit breakers
    5.
    发明授权
    Process for manufacturing a contact material for vacuum circuit breakers 失效
    用于制造真空断路器的接触材料的方法

    公开(公告)号：US5403543A

    公开(公告)日：1995-04-04

    申请号：US893017

    申请日：1992-06-03

    申请人： Tsutomu Okutomi ,  Tsuneyo Seki ,  Atsushi Yamamoto ,  Mikio Okawa ,  Tadaaki Sekiguchi ,  Yoshiko Majima

    发明人： Tsutomu Okutomi ,  Tsuneyo Seki ,  Atsushi Yamamoto ,  Mikio Okawa ,  Tadaaki Sekiguchi ,  Yoshiko Majima

    IPC分类号： C22C9/00 ,  B22F1/00 ,  C22C1/04 ,  C22C27/06 ,  H01H1/02 ,  H01H11/04 ,  H01H33/66 ,  B22F3/00

    CPC分类号： B22F1/0088 ,  C22C1/04 ,  H01H1/0206

    摘要： Disclosed is a manufacturing process of an alloy material comprising a chromium component and a base component which comprises at least one element selected from tile group consisting of copper and silver, the manufacturing process comprising steps of: subjecting a chromium material with a carbon material to heat treatment; and manufacturing the alloy material using the chromium material treated at the heat treatment subjecting step and a raw material for tile base component. At the heat treatment subjecting step, the chromium material, mixed with 50 ppm to 5,000 ppm of the carbon material, is heated to a temperature within the range of 800.degree. C. to 1,400.degree. C. in a non-oxidizing atmosphere. According to this manufacturing process, the level of oxygen content in the alloy material are decreased to be not more than 200 ppm. The obtained alloy material can be used as a contact material for vacuum circuit breakers.

    摘要翻译： 公开了包含铬成分和碱成分的合金材料的制造方法，其包含选自由铜和银组成的瓷砖组中的至少一种元素，所述制造方法包括以下步骤：使具有碳材料的铬材料加热 治疗; 并且使用在热处理步骤中处理的铬材料和用于瓦片基础成分的原料来制造合金材料。 在热处理工序中，在非氧化性气氛中将与50ppm〜5,000ppm的碳材料混合的铬材料加热至800〜1400℃的温度。 根据该制造方法，合金材料中的氧含量降低到不大于200ppm。 所获得的合金材料可以用作真空断路器的接触材料。

    Process of making a contact forming material for a vacuum valve
    8.
    发明授权
    Process of making a contact forming material for a vacuum valve 失效
    制造用于真空阀的接触形成材料的方法

    公开(公告)号：US4830821A

    公开(公告)日：1989-05-16

    申请号：US224401

    申请日：1988-07-26

    申请人： Tsutomu Okutomi ,  Seishi Chiba ,  Mikio Okawa ,  Tadaaki Sekiguchi ,  Hiroshi Endo ,  Tsutomu Yamashita

    发明人： Tsutomu Okutomi ,  Seishi Chiba ,  Mikio Okawa ,  Tadaaki Sekiguchi ,  Hiroshi Endo ,  Tsutomu Yamashita

    IPC分类号： C22C1/04 ,  H01H1/02

    CPC分类号： C22C1/0475 ,  H01H1/0206

    摘要： A contact forming material for a vacuum valve or vacuum circuit breaker comprising (a) a conductive material consisting of copper and/or silver, and (b) an arc-proof material consisting of chromium, titanium, zirconium, or an alloy thereof wherein the amount of said arc-proof material present in said conductive material matrix is no more than 0.35% by weight. This contact forming material is produced by a process which comprises the steps of compacting arc-proof material powder into a green compact, sintering said green compact to obtain a skeleton of the arc-proof material, infiltrating the voids of said skeleton with a conductive material, and cooling the infiltrated material. The contact forming material can provide contacts for a vacuum valve or vacuum circuit breaker which has excellent characteristics such as temperature rise characteristic and contact resistance characteristic.

    摘要翻译： 一种用于真空阀或真空断路器的接触形成材料，包括（a）由铜和/或银组成的导电材料，和（b）由铬，钛，锆或其合金组成的防弧材料，其中 存在于所述导电材料基体中的所述防弧材料的量不大于0.35重量％。 该接触形成材料通过以下步骤制造，该方法包括以下步骤：将抗电弧材料粉末压实成生坯，烧结所述生坯以获得防弧材料的骨架，用导电材料渗透所述骨架的空隙 ，并冷却渗透的材料。 接触形成材料可以提供具有诸如温度上升特性和接触电阻特性等优异特性的真空阀或真空断路器的触头。

    Contact forming material for a vacuum valve
    9.
    发明授权
    Contact forming material for a vacuum valve 失效
    用于真空阀的接触成型材料

    公开(公告)号：US4777335A

    公开(公告)日：1988-10-11

    申请号：US4904

    申请日：1987-01-20

    申请人： Tsutomu Okutomi ,  Seishi Chiba ,  Mikio Okawa ,  Tadaaki Sekiguchi ,  Hiroshi Endo ,  Tsutomu Yamashita

    发明人： Tsutomu Okutomi ,  Seishi Chiba ,  Mikio Okawa ,  Tadaaki Sekiguchi ,  Hiroshi Endo ,  Tsutomu Yamashita

    IPC分类号： H01H1/023 ,  C22C1/04 ,  C22C5/06 ,  C22C9/00 ,  H01H1/02 ,  H01H33/66

    CPC分类号： C22C1/0475 ,  H01H1/0206

    摘要： A contact forming material for a vacuum valve or vacuum circuit breaker comprising (a) a conductive material consisting of copper and/or silver, and (b) an arc-proof material consisting of chromium, titanium, zirconium, or an alloy thereof wherein the amount of said arc-proof material present in said conductive material matrix is no more than 0.35% by weight. This contact forming material is produced by a process which comprises the steps of compacting arc-proof material powder into a green compact, sintering said green compact to obtain a skeleton of the arc-proof material, infiltrating the voids of said skeleton with a conductive material, and cooling the infiltrated material. The contact forming material can provide contacts for a vacuum valve or vacuum circuit breaker which has excellent characteristics such as temperature rise characteristic and contact resistance characteristic.

    摘要翻译： 一种用于真空阀或真空断路器的接触形成材料，包括（a）由铜和/或银组成的导电材料，和（b）由铬，钛，锆或其合金组成的防弧材料，其中 存在于所述导电材料基体中的所述防弧材料的量不大于0.35重量％。 该接触形成材料通过以下步骤制造，该方法包括以下步骤：将抗电弧材料粉末压实成生坯，烧结所述生坯以获得防弧材料的骨架，用导电材料渗透所述骨架的空隙 ，并冷却渗透的材料。 接触形成材料可以提供具有诸如温度上升特性和接触电阻特性等优异特性的真空阀或真空断路器的触头。