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公开(公告)号：US4424429A
公开(公告)日：1984-01-03
申请号：US335836
申请日：1981-12-30
CPC分类号： H01H1/0203 , C22C32/0021
摘要： A contactor for a vacuum type circuit interrupter having a pair of detachable electrodes in a vacuum chamber comprises an electrode obtained by melting or sintering a composition of an electric conductive metal of copper or silver as a main component and at least one metal oxide having a melting point lower than that of said conductive metal of bismuth oxide, thallium oxide, indium oxide, antimony oxide or tellurium oxide as an additive, in vacuum or a reduced atmosphere or a nonoxidative atmosphere.
摘要翻译： 在真空室中具有一对可拆卸电极的真空型断路器的接触器包括通过熔化或烧结铜或银的导电金属作为主要成分的组合物和至少一种熔融金属氧化物而获得的电极 在真空或还原气氛或非氧化气氛中，比氧化铋，氧化铊，氧化铟，氧化锑或氧化碲作为添加剂的导电金属低。
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公开(公告)号：US4537743A
公开(公告)日：1985-08-27
申请号：US624519
申请日：1984-06-25
申请人： Takashi Yamanaka , Yasushi Takeya , Mitsumasa Yorita , Toshiaki Horiuchi , Kouichi Inagaki , Eizo Naya , Michinosuke Demizu , Mitsuhiro Okumura
发明人： Takashi Yamanaka , Yasushi Takeya , Mitsumasa Yorita , Toshiaki Horiuchi , Kouichi Inagaki , Eizo Naya , Michinosuke Demizu , Mitsuhiro Okumura
CPC分类号： H01H1/0203 , Y10T29/49105 , Y10T29/49213 , Y10T29/53248
摘要： The disclosed electrode composition for a vacuum switch comprises copper, as a principal ingredient, a low melting point metal such as Bi, Pb, In, Li, Sn or any of their alloys, in a content not exceeding 20% by weight, a first additional metal such as Te, Sb, La, Mg or any of their alloys and a refractory metal such as Cr, Fe, Co, Ni, Ti, W or any of their alloys in a content less than 40% by weight.
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公开(公告)号：US4499009A
公开(公告)日：1985-02-12
申请号：US451324
申请日：1982-12-20
申请人： Takashi Yamanaka , Yasushi Takeya , Mitsumasa Yorita , Toshiaki Horiuchi , Kouichi Inagaki , Eizo Naya , Michinosuke Demizu , Mitsuhiro Okumura
发明人： Takashi Yamanaka , Yasushi Takeya , Mitsumasa Yorita , Toshiaki Horiuchi , Kouichi Inagaki , Eizo Naya , Michinosuke Demizu , Mitsuhiro Okumura
CPC分类号： H01H1/0203 , Y10T29/49105 , Y10T29/49213 , Y10T29/53248
摘要： The disclosed electrode composition for a vacuum switch comprises copper, as a principal ingredient, a low melting point metal such as Bi, Pb, In, Li, Sn or any of their alloys, in a content not exceeding 20% by weight, a first additional metal such as Te, Sb, La, Mg or any of their alloys and a refractory metal such as Cr, Fe, Co, Ni, Ti, W or any of their alloys in a content less than 40% by weight.
摘要翻译： 所公开的真空开关用电极组合物包括作为主要成分的铜，低熔点金属如Bi，Pb，In，Li，Sn或其任何合金，其含量不超过20重量％，第一 附加金属如Te，Sb，La，Mg或其任何合金，以及难熔金属如Cr，Fe，Co，Ni，Ti，W或其合金中的任何一种含量小于40％（重量）。
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公开(公告)号：US4486631A
公开(公告)日：1984-12-04
申请号：US452052
申请日：1982-12-22
申请人： Eizo Naya , Toshiaki Horiuchi , Yasushi Takeya , Kouichi Inagaki , Michinosuke Demizu , Mitsuhiro Okumura
发明人： Eizo Naya , Toshiaki Horiuchi , Yasushi Takeya , Kouichi Inagaki , Michinosuke Demizu , Mitsuhiro Okumura
CPC分类号： H01H1/0206
摘要： A contact for a vacuum circuit breaker is disclosed which contains copper as a first component and also at least two elements of the group of chromium, molybdenum, and tungsten as the other components. Each of these other components is contained in an amount not greater than 40% by weight.
摘要翻译： 公开了一种用于真空断路器的接触件，其包含铜作为第一部件，并且还包括作为其它部件的铬，钼和钨组中的至少两个元件。 这些其它成分中的每一种都不超过40重量％。
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公开(公告)号：US4517033A
公开(公告)日：1985-05-14
申请号：US547218
申请日：1983-10-31
申请人： Mitsuhiro Okumura , Eizo Naya , Michinosuke Demizu
发明人： Mitsuhiro Okumura , Eizo Naya , Michinosuke Demizu
CPC分类号： H01H1/0206
摘要： A contact material for a vacuum circuit breaker consists essentially of copper as the basic component, and, as the other components, 35% by weight or below of chromium and 50% by weight or below of tantalum, the total quantity of chromium and tantalum in said contact material being 10% by weight and above.
摘要翻译： 用于真空断路器的接触材料基本上由铜作为基本组分，并且作为其他组分，35重量％以下的铬和50重量％以下的钽，铬和钽的总量 所述接触材料为10重量％以上。
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公开(公告)号：US4927989A
公开(公告)日：1990-05-22
申请号：US336517
申请日：1989-04-11
申请人： Eizo Naya , Mitsuhiro Okumura , Seiichi Miyamoto
发明人： Eizo Naya , Mitsuhiro Okumura , Seiichi Miyamoto
CPC分类号： H01H1/0203 , C22C1/0425 , C22C1/045 , C22C9/00
摘要： A contact material for a vacuum circuit breaker having excellent properties, which consists essentially of copper, molybdenum, one member selected from the group consisting of niobium and tantalum, and one or more kinds of low melting point materials.
摘要翻译： 一种用于真空断路器的接触材料，其具有优异的性能，其基本上由铜，钼，选自铌和钽的一种元素和一种或多种低熔点材料组成。
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公开(公告)号：US4626282A
公开(公告)日：1986-12-02
申请号：US792983
申请日：1985-10-30
申请人： Eizo Naya , Mitsuhiro Okumura
发明人： Eizo Naya , Mitsuhiro Okumura
CPC分类号： H01H1/0203
摘要： Contact material for vacuum circuit breaker according to the present invention contains (1) copper, (2) molybdenum, and (3) niobium or tantalum.
摘要翻译： 根据本发明的真空断路器的接触材料包含（1）铜，（2）钼和（3）铌或钽。
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公开(公告)号：US4971866A
公开(公告)日：1990-11-20
申请号：US462022
申请日：1990-01-08
申请人： Eizo Naya , Mitsuhiro Okumura
发明人： Eizo Naya , Mitsuhiro Okumura
CPC分类号： H01H1/0203 , C22C32/0021 , Y10T428/12486
摘要： In manufacturing contact materials which satisfy all the criteria required for use in vacuum switches as to chopping current, circuit breaking performance, withstanding voltage, welding separation force and wear, Cu powder and Ta.sub.2 O.sub.5 powder are mixed, and compressed while heating below the melting point of Cu in a nonoxidizing atmosphere. Alternatively a green compact is first manufactured from Ta.sub.2 O.sub.5 powder or a mixture of Ta.sub.2 O.sub.5 and Cu powder, and molten Cu is made to infiltrate into the compact. Preparing a green compact from a mixture of Cu powder and Ta.sub.2 O.sub.5 powder, it may be sintered at a temperature below the melting point of Cu, re-pressed, and resintered at 400.degree.-900.degree. C. in a nonoxidizing atmosphere.
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公开(公告)号：US4870231A
公开(公告)日：1989-09-26
申请号：US80260
申请日：1987-07-27
申请人： Eizo Naya , Mitsuhiro Okumura
发明人： Eizo Naya , Mitsuhiro Okumura
IPC分类号： H01H1/02
CPC分类号： H01H1/0206
摘要： A contact for a vacuum interrupter, of a material containing copper (Cu), chromium (Cr), molybdenum (Mo), and either tantalum (Ta) or niobium (Nb), has splendid interrupting ability and breakdown voltage ability.
摘要翻译： 包含铜（Cu），铬（Cr），钼（Mo）和钽（Ta）或铌（Nb）的材料的真空断路器的触点具有极佳的中断能力和击穿电压能力。
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10.发明授权Method of manufacturing vacuum switch contact material from Cr.sub.2 O.sub.3 powder 失效从CR2O3粉末制造真空开关接触材料的方法
公开(公告)号：US5130068A
公开(公告)日：1992-07-14
申请号：US592791
申请日：1990-10-04
申请人： Eizo Naya , Mitsuhiro Okumura
发明人： Eizo Naya , Mitsuhiro Okumura
CPC分类号： H01H1/0203 , C22C32/0021
摘要： A vacuum switch contact material consists essentially of a mixture of Cu and Cr.sub.x O.sub.y (x=1 to 2, y=0 to 3) wherein Cr.sub.x O.sub.y is in a particulate state, the center part of the particles consists of Cr.sub.2 O.sub.3 (x=2, y=3), and the peripheral part of the particles consists of Cr (x=1, y=0). The Cr.sub.x O.sub.y particles having Cr.sub.2 O.sub.3 central part and Cr periphery can be formed by reducing the surface of Cr.sub.2 O.sub.3 particles. Cu may be infiltrated into the open pores of Cr.sub.x O.sub.y particles after a green compact of Cr.sub.2 O.sub.3 is formed. Alternatively, a mixture of Cr.sub.2 O.sub.y particles and Cu particles may be formed into a green compact, which may then be sintered. Still alternatively, a mixture of Cr.sub.2 O.sub.y particles and Cu particles may be hot-pressed.
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