| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | METHOD FOR MANUFACTURING ELECTRODE MATERIAL AND ELECTRODE MATERIAL | US15738275 | 2016-06-21 | US20180182573A1 | 2018-06-28 | Shota HAYASHI; Keita ISHIKAWA; Kenta YAMAMURA; Kosuke HASEGAWA |
| It is a method for manufacturing an electrode material containing Cu, Cr, a heat-resistant element, and a low melting metal. A Cr powder and a heat-resistant element powder are mixed together in a ratio such that the Cr is greater than the heat-resistant element by weight. The mixed powder of the heat-resistant element and the Cr powder is baked. A MoCr solid solution obtained by the baking and containing a solid solution of the heat-resistant element and the Cr is pulverized and then classified. The classified MoCr solid solution powder, a Cu powder, and a low-melting metal powder are mixed together, followed by sintering at a temperature that is 1010° C. or higher and is lower than 1038° C., thereby obtaining the electrode material. | ||||||
| 142 | Monolithic contact system and method of forming | US14571739 | 2014-12-16 | US10008341B2 | 2018-06-26 | Mohandas Nayak; Nagaveni Karkada; Shalini Thimmegowda; Mallikarjuna Heggadadevanapura Thammaiah; Janakiraman Narayanan; Linda Yvonne Jacobs |
| A circuit breaker having a monolithic structure and method of making is disclosed. The monolithic structure includes an arm portion having copper and a contact portion having a composite material. The composite material has a metallic matrix and a second phase disposed in the metallic matrix. The method of making the monolithic structure includes introducing a first powder into a first region of a mold, introducing a second powder into a second region of the mold, and consolidating the first powder and the second powder together. The first region of the mold corresponds to a contact portion, and the second region corresponds to an arm portion of the monolithic structure of the circuit breaker. | ||||||
| 143 | CONTACT MEMBER, SLIDING CONTACT, ELECTRICAL DEVICE AND METHOD FOR PRODUCING CONTACT MEMBER | US15900145 | 2018-02-20 | US20180174774A1 | 2018-06-21 | Ichizo SAKAMOTO; Makito MORII; Kazushi MAETA; Yuki YAMAMOTO |
| A surface layer including a base material made of a conductor and dispersed particles dispersed in the base material is formed on a surface of a fixed contact, and the dispersed particles each include a base particle that is metal oxide and a coating layer formed on an outer surface of the base particle. | ||||||
| 144 | METHOD FOR PRODUCING ELECTRODE MATERIAL AND ELECTRODE MATERIAL | US15570433 | 2016-04-26 | US20180174771A1 | 2018-06-21 | Shota HAYASHI; Keita ISHIKAWA; Takaaki FURUHATA; Kenta YAMAMURA; Kosuke HASEGAWA |
| It is a method for producing an electrode material containing Cu, Cr and a heat-resistant element. A heat-resistant element powder and a Cr powder are mixed together in a ratio such that the heat-resistant element is less than the Cr by weight. A mixed powder of the heat-resistant element powder and the Cr powder is baked. A sintered body obtained by the baking and containing a solid solution of the heat-resistant element and the Cr is pulverized, and a solid solution powder obtained by the pulverizing is classified, to have a particle size of 200 μm or less. 10-60 parts by weight of the classified solid solution powder and 90-40 parts by weight of a Cu powder are mixed together, followed by sintering to obtain the electrode material. If a low melting metal powder having a median size of 5-40 μm is mixed with a mixed powder of the solid solution powder and the Cu powder, the deposition resistance property is further improved. | ||||||
| 145 | Magnetically aligned circuit | US15011248 | 2016-01-29 | US09911559B2 | 2018-03-06 | James David Holbery; Andrew L. Fassler |
| Examples are disclosed that relate to magnetically aligned switching circuits. One disclosed example provides an electronic component comprising a first terminal, a second terminal, and a deformable host material arranged between the first terminal and the second terminal. Aligned magnetically within the host material is an ensemble of particles each comprising a ferromagnetic material, each particle having greater electrical conductivity than the host material. The ensemble of particles is configured to form at least one complete conduction path from the first terminal to the second terminal. | ||||||
| 146 | Silver-based electrical contact material | US14389441 | 2013-03-29 | US09620258B2 | 2017-04-11 | Nan Liu |
| The present invention relates to a new silver-based electrical contact material, in which silver is in a continuous phase and carbon being in a nano-dispersed phase is dispersed in continuous phase silver. The content of the dispersed phase carbon in the silver-based electrical contact material can be 0.02% to 5% by weight, on the basis of the total weight of the silver-based electrical contact material. According to the present invention, the carbon contains carbon in a diamond form. Such a silver-based electrical contact material shows excellent mechanical wear resistance and electrical performance. | ||||||
| 147 | ELECTRODE MATERIAL AND METHOD FOR PRODUCING ELECTRODE MATERIAL | US15112358 | 2015-01-05 | US20160332231A1 | 2016-11-17 | Keita ISHIKAWA; Kaoru KITAKIZAKI; Shota HAYASHI |
| An electrode material obtained by press molding a mixed powder where a Cu powder, a Cr powder and a refractory metal powder (for example, a Mo powder) are mixed and then sintering the thus-obtained molded body in a non-oxidizing atmosphere at a temperature that is not higher than the melting point of Cu. As the Cr powder to be mixed in the mixed powder, a Cr powder wherein the volume-based relative particle amount of particles having particle diameters of 40 μm or less is less than 10% is used. The Cr powder is mixed in the mixed powder in an amount of 10-50% by weight, while the refractory metal powder is mixed in the mixed powder in an amount of 1-10% by weight. | ||||||
| 148 | METHOD AND DEVICE FOR PRODUCING CONTACT ELEMENTS FOR ELECTRICAL SWITCH CONTACTS | US14898481 | 2014-06-04 | US20160133402A1 | 2016-05-12 | Dirk POHLE; Wolfgang ROSSNER; Klaus SCHACHTSCHNEIDER; Carsten SCHUH |
| A method is disclosed for improving the production of electrical switch contacts, in particular for vacuum tubes. In the method, an electrical or electromagnetic field assists and/or effects a sintering process. In the method, the sintering process takes place on a metallic carrier, and via the method, semi-finished contact elements for electrical switch contacts, contact elements for electrical switch contacts, and/or electrical switch contacts, in particular for vacuum tubes, are produced. | ||||||
| 149 | MONOLITHIC CONTACT SYSTEM AND METHOD OF FORMING | US14571739 | 2014-12-16 | US20150170846A1 | 2015-06-18 | Mohandas NAYAK; Nagaveni KARKADA; Shalini THIMMEGOWDA; Mallikarjuna Heggadadevanapura THAMMAIAH; Janakiraman NARAYANAN; Linda Yvonne JACOBS |
| A circuit breaker having a monolithic structure and method of making is disclosed. The monolithic structure includes an arm portion having copper and a contact portion having a composite material. The composite material has a metallic matrix and a second phase disposed in the metallic matrix. The method of making the monolithic structure includes introducing a first powder into a first region of a mold, introducing a second powder into a second region of the mold, and consolidating the first powder and the second powder together. The first region of the mold corresponds to a contact portion, and the second region corresponds to an arm portion of the monolithic structure of the circuit breaker. | ||||||
| 150 | METHOD FOR PREPARING SILVER-BASED ELECTRICAL CONTACT MATERIAL | US14389444 | 2013-03-29 | US20150083974A1 | 2015-03-26 | Nan Liu; Binyuan Zhao; Yijian Lai |
| The present invention relates to a new method for preparing a silver-based electrical contact material, comprising following steps of: (a) providing a carbonaceous mesophase solution; (b) adding a silver source into the carbonaceous mesophase solution and stirring to obtain a compound; (c) removing a solvent from the compound to obtain a solid; (d) performing a heat treatment on the solid, and obtaining a silver-based electrical contact material. The silver source is silver powder prepared by means of a chemical method. By means of the method, a uniform carbonaceous coating on silver is implemented, the silver is uniformly distributed in a nanometer scale, and a diamond is generated in situ of a material after being sintered. The silver-based electrical contact material processed by means of this method shows an excellent mechanical wear resistance and electrical property. | ||||||
| 151 | Process for manufacture of silver-based particles and electrical contact materials | US11394826 | 2006-03-31 | US07842274B2 | 2010-11-30 | Dan Goia; Sebastian Fritzsche; Bernd Kempf; Peter Braumann; Thierry Charles Simon Vandevelde |
| The invention is directed to a process for manufacture of fine precious metal containing particles, specifically silver-based particles and silver-based contact materials via an intermediate silver(+1)-oxide species.The process comprises in a first step the formation of a thermally instable silver (+1)-oxide species by adding a base to an aqueous silver salt solution comprising an organic dispersing agent. Due to the presence of the organic dispersing agent, the resulting silver (+1)-oxide species is thermally instable, thus the species is decomposing to metallic silver at temperature lower than 100° C.The process optionally may comprise the addition of a powdered compound selected from the group of inorganic oxides, metals, and carbon-based compounds. Furthermore the process may contain additional separating and drying steps.The process is versatile, cost efficient and environmentally friendly and is used for the manufacture of silver-based particles and electrical contact materials. Silver nanoparticles made according to the process are characterized by a narrow particle size distribution. Electrical contact materials manufactured according to the process reveal improved contact welding properties. | ||||||
| 152 | ELECTRODE, ELECTRICAL CONTACT AND METHOD OF MANUFACTURING THE SAME | US12708784 | 2010-02-19 | US20100147112A1 | 2010-06-17 | Shigeru Kikuchi; Masato Kobayashi; Kenji Tsuchiya; Noboru Baba |
| An electrical contact comprising a matrix of an alloy of a high electro-conductive metal and a low melting point metal and particles of a refractory metal dispersed in the matrix. The electrical contact comprises the alloy containing a low melting point metal of at least one of Sn, Te and Be, and the refractory metal is Cr. The alloy comprising the low melting point metal in an amount of 0.5 to 3% by weight and the balance being Cu. | ||||||
| 153 | METHOD FOR PRODUCTION OF A CONTACT PIECE FOR A SWITCHGEAR ASSEMBLY, AS WELL AS A CONTACT PIECE ITSELF | US12627613 | 2009-11-30 | US20100129254A1 | 2010-05-27 | Dietmar Gentsch; Guenter Pilsinger |
| The disclosure relates to a method for production of a component, such as a contact piece, for a switchgear assembly. To introduce a slot and apply a contact outer contour directly during the powder-metallurgical production process of the contact material, contouring in the form of a slot or slots is introduced into the powder-metal material, which is located in a mold, essentially in a direction parallel to a normal to a surface of the component, to form the component with a slot. | ||||||
| 154 | Method for Producing Contact Makers for Vacuum Switching Chambers | US11918045 | 2005-04-16 | US20090145883A1 | 2009-06-11 | Dietmar Gentsch |
| The invention relates to a method for producing contact makers for vacuum switching chambers, which are used in low-voltage, medium-high voltage, and high-voltage engineering, during which the contact makers are provided with slots extending from the middle area of the contact to the edge. The invention also relates to the contact maker itself. In order to improve a method for producing contact makers in vacuum switching chambers as well as a contact maker of the type in question so that the production method is distinctly less complicated, and the contact maker is sufficient for the highest functional demands, the invention provides that the contact makers are produced in a powder metallurgical process in which they are provided with near final contours and near final dimensions. During this process, said slots are already made in the green compact and are fixed during a subsequent sintering. | ||||||
| 155 | Process for manufacture of silver-based particles and electrical contact materials | US11394826 | 2006-03-31 | US20070234851A1 | 2007-10-11 | Dan Goia; Sebastian Fritzsche; Bernd Kempf; Peter Braumann; Thierry Vandevelde |
| The invention is directed to a process for manufacture of fine precious metal containing particles, specifically silver-based particles and silver-based contact materials via an intermediate silver(+1)-oxide species. The process comprises in a first step the formation of a thermally instable silver (+1)-oxide species by adding a base to an aqueous silver salt solution comprising an organic dispersing agent. Due to the presence of the organic dispersing agent, the resulting silver (+1)-oxide species is thermally instable, thus the species is decomposing to metallic silver at temperature lower than 100° C. The process optionally may comprise the addition of a powdered compound selected from the group of inorganic oxides, metals, and carbon-based compounds. Furthermore the process may contain additional separating and drying steps. The process is versatile, cost efficient and environmentally friendly and is used for the manufacture of silver-based particles and electrical contact materials. Silver nanoparticles made according to the process are characterized by a narrow particle size distribution. Electrical contact materials manufactured according to the process reveal improved contact welding properties. | ||||||
| 156 | Electrochemical displacement-deposition method for making composite metal powders | US10760667 | 2004-01-20 | US07041151B2 | 2006-05-09 | Raj Pal Singh Gaur; Scott A. Braymiller; Thomas A. Wolfe; Michael R. Pierce; David L. Houck |
| An electrochemical displacement-deposition method for making composite metal powders is described. The method is carried out by combining tungsten or molybdenum metal particles with particles of silver oxide or copper oxide in an aqueous hydroxide solution. Heat is applied to the solution to cause the oxide particles to convert to silver or copper metal particles which are substantially adhered to the refractory metal particles. Unlike conventional methods, it is not necessary to heat the oxide powders to a very high temperature in a reducing atmosphere in order to form the composite metal powder. | ||||||
| 157 | Vacuum circuit breaker, vacuum interrupter, electric contact and method of manufacturing the same | US11252549 | 2005-10-19 | US20060081560A1 | 2006-04-20 | Shigeru Kikuchi; Masato Kobayashi; Kenji Tsuchiya; Noboru Baba; Takashi Sato |
| An electrode having an electrical contact for a vacuum interrupter, wherein the electrical contact contains silver, copper and tungsten carbide, and wherein an amount of silver is 24 to 67% by weight, an amount of copper is 5 to 20% by weight and the balance being tungsten carbide, a ratio of copper to silver and copper being less than 28%. The disclosure is concerned with a vacuum interrupter, vacuum circuit breaker and other vacuum switches using the electrical contact. | ||||||
| 158 | Electric contact member and production method thereof | US09950679 | 2001-09-13 | US06765167B2 | 2004-07-20 | Shigeru Kikuchi; Masaya Takahashi; Noboru Baba; Masato Kobayashi; Yoshitomo Goto; Yasuaki Suzuki; Takashi Sato |
| An electric contact member has a texture wherein fire proof metal powder having the form of a flat plate is diffused in a matrix of a highly conductive metal. The flat surface is oriented in one direction and the surface in parallel with the flat surface of the fire proof metal powder is used as a contact point face. | ||||||
| 159 | Make break contact material comprising ag-ni based alloy having ni metal particles dispersed and relay using the same | US10070419 | 2002-03-15 | US06746551B2 | 2004-06-08 | Osamu Sakaguchi; Kengo Taneichi; Toshiya Yamamoto |
| A make-and-break contact material which is less worn out and is able to achieve an increased life compared to a conventional material of Ag—CdO-based alloy, in an AC general relay used for a resistive load of about 1 to 20A in a range of AC 100V to 250V. In the present invention, the make-and-break contact material of Ag—Ni-based alloy used for a switching part performing electrical switching through mechanical switching operation is the make-and-break contact material of Ag—Ni-based alloy with Ni metal particles dispersed therein which is obtained through mixing and stirring 3.1 to 20.0 wt % of Ni powder, a certain amount of Li2CO3 powder corresponding to 0.01 to 0.50 wt % of metal Li as an additive, and a balance being Ag powder to make a mixture with the above described powders uniformly dispersed therein, and through compacting and sintering the above described mixture. | ||||||
| 160 | Sliding contact material comprising Ag-Ni based alloy having Ni metal particles dispersed and clad composite material, and Dc compact motor using the same | US10088082 | 2002-07-01 | US06638334B2 | 2003-10-28 | Keiji Nakamura; Takemasa Honma; Yasuhiro Hashimoto; Osamu Sakaguchi; Kengo Taneichi; Toshiya Yamamoto |
| The present invention is aimed at providing a sliding contact material that has an alloy composition containing no harmful substance like Cd, especially excellent contact resistance properties, electrical functions that are good and is not subject to secular change, and abrasion resistance practically bearing comparison with conventional sliding contact materials, and is aimed at lengthening the life of a motor by the use of a sliding contact material having excellent durability as a commutator for a small direct-current motor. The present invention is a sliding contact material of an Ag—Ni-based alloy that is used in sliding part electrically switching on and off by mechanical sliding action, and the material is a sliding contact material of Ni metal particle-dispersed-type Ag—Ni-based alloy that is produced in such a method that 0.7 to 3.0 wt. % Ni powder, an additive of Li2CO3 powder corresponding to 0.01 to 0.50 wt. % Li after being converted to metal and the balance of Ag powder are mixed and stirred to form a uniformly dispersed mixture, then the mixture is treated with forming and sintering processes. | ||||||
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