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31. 发明专利

JPH10216877A MANUFACTURE OF CONTACT MATERIAL FOR SWITCHING DEVICE 失效
公开(公告)号：JPH10216877A
公开(公告)日：1998-08-18
申请号：JP1872997
申请日：1997-01-31
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , YAMAMOTO ATSUSHI , SEKI KEISEI , KUSANO TAKASHI
IPC分类号： B21F99/00 , H01H1/04 , H01H11/04 , B21F21/00
摘要： PROBLEM TO BE SOLVED: To provide a contact material for a switching device in which the dielectric characteristic and the consumption resistance characteristic are further improved by melting and penetrating the conductive material in a gap of the arc-resistant material consisting of small wires or sheets wound in a ring. SOLUTION: The arc-resistant material 1 consisting of small W wires is wound around a jig comprising an upper alumina jig and a lower alumina jig. The material is heated up to about 1200 deg.C in the vacuum atmosphere, and kept for about two hours, and cooled to the room temperature, and the arc- resistant material 1 consisting of the W wire is drawn out of the jig. The conductive material 2 of the inner volume of about 1/2 that of an alumina container 6, e.g. disk-shaped Cu or Cu powder of the same weight is placed in the alumina container, and the arc-resistant material 1 formed in a winding shape is placed thereon. The material is stored in a vacuum container 7, and heated up to about 1130 deg.C in the vacuum atmosphere, and kept for about 30 minutes to melt Cu, and then, cooled to the room temperature in the furnace. The small W wire part in which Cu is impregnated is cut in the ring shape.

32. 发明专利

JPH10199379A CONTACT MATERIAL FOR VACUUM BREAKER 失效
公开(公告)号：JPH10199379A
公开(公告)日：1998-07-31
申请号：JP378997
申请日：1997-01-13
申请人： SHIBAFU ENG KK , TOSHIBA ELECTRONIC ENG , TOSHIBA CORP
发明人： OKUTOMI ISAO , OSHIMA IWAO , SEKIGUCHI SHIGEAKI , YAMAMOTO ATSUSHI , OSABE KIYOSHI , SEKI KEISEI , KUSANO TAKASHI
IPC分类号： H01H33/66 , H01H1/02
摘要： PROBLEM TO BE SOLVED: To maintain basic three characteristics, namely, fusion resistance, voltage resistance, and breaking at a certain level, and obtain superior arc consumption resistance characteristics and re-arc characteristics by integrating WMO in Cu alloy in which a specific average particle size of W and Mo and a specific rate is contained and specifying a specific average particle size. SOLUTION: W of 0.4 to 6 micrometers in average particle size is 74 to 88wt.%, Mo of 0.4 to 4 micrometers in average particle size is 0.001 to 5wt.%, and the remaining part is Cu. Due to this quantity containing W, a required high hardness and high fusion property are obtained without lowering conductivity, re-arc generation frequency, breaking characteristics, static pressure resistance characteristics are obtained in this average particle size of W, and the average particle size of WMo particles is less distorted. Mo of this contained quantity is integrated as an auxiliary component of W, and wetting property with W and Cu is improved, the average particle size of WMo particle is 0.4 to 10 micrometers, and thereby radiation of micro-metal particles and surface coarseness are reduced in the case of a single component. This alloy may contain Mo and Fe. This manufacture is by invasion method or sintering method or the like.

33. 发明专利

JPH1083746A ELECTRODE FOR VACUUM VALVE AND ITS MANUFACTURE 失效
公开(公告)号：JPH1083746A
公开(公告)日：1998-03-31
申请号：JP23492496
申请日：1996-09-05
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , YAMAMOTO ATSUSHI , SEKI KEISEI , KUSANO TAKASHI
IPC分类号： C22C29/06 , C22C1/10 , C22C9/00 , C22C27/06 , H01H1/02 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To obtain excellent large electric current breaking characteristic and cutting characteristic by arranging small electric current breaking contact points on large electric current breaking electrodes. SOLUTION: A breaking chamber 1 is airtightly constituted in a vacuum by a cylindrical insulating vessel 2 and metallic cover bodies 4a and 4b arranged on its both ends through sealing metal fittings 3a and 3b. A pair of large electric current breaking electrodes which are installed in an end part where electrode bars 5 and 6 are opposed to each other and has large electric current breaking capacity, are arranging in the breaking chamber 1, and an upper part becomes a fixed large electric current breaking electrode 7, and a lower part becomes a movable large electric current breaking electrode 8. A metallic arc shield 11 is arranged so as to cover both electrodes 7 and 8, and prevents bellows 9 from being covered with arc vapor. A fixed small electric current breaking contact point 13b having a low cutting characteristic is fixed to a central part of the fixed large electric current breaking electrode 7, and a movable small electric current breaking contact point 13a having a low cutting characteristic is fixed to a central part of the movable large electric current breaking electrode 8.

34. 发明专利

JPH09115371A CONTACT MATERIAL FOR VACUUM VALVE 失效
公开(公告)号：JPH09115371A
公开(公告)日：1997-05-02
申请号：JP26959495
申请日：1995-10-18
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , SEKI KEISEI , KUSANO TAKASHI , YAMAMOTO ATSUSHI
IPC分类号： H01H33/66 , H01H1/04 , H01H11/04
摘要： PROBLEM TO BE SOLVED: To provide corneal material for a vacuum valve in which cutoff performance is improved by making the peripheral length of the boundary of respective materials longer than the peripheral length of a complete round in the contact material for the vacuum valve having plural compositions in a radial direction. SOLUTION: Conduction bars 5, 6 confront each other in a cutoff chamber 1, one pair of electrodes 7, 8 are fitted to the end portions thereof, the upper electrode is used as the fixed electrode 7, the lower electrode is used as the moving electrode 8, and contacts 13a, 13b are respectively brazed to the respective electrodes 7, 8. The contacts 13a, 13b are respectively formed of compositions composed of, for instance, Cr and Cu in radial directions, the peripheral length of the boundary of te composition is set to be longer than the peripheral length of a true circle having a nearly equal area to the area inside the boundary, for instance to have a wave form. Thereby, contact material having a increased cutoff current value is obtained.

35. 发明专利

JPH0973847A VACUUM BULB 失效
公开(公告)号：JPH0973847A
公开(公告)日：1997-03-18
申请号：JP22819995
申请日：1995-09-05
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , SUZUKI HIDEO , KUSANO TAKASHI , SEKI KEISEI , YAMAMOTO ATSUSHI
IPC分类号： B23K1/20 , H01H1/00 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To facilitate work for fixingly attaching reinforcement members or reinforcement plate parts by silver brazing or the like and to improve breaking characteristics and restriking characteristics in a reduced size. SOLUTION: There is provided a reinforcement plate 17 a part of which is fixedly attached to a peripheral part of a fixingly-attaching part 16a of a reinforcement member 16 and which is arranged in a recessed part 23e of a coil electrode 23. A surface layer, of the whole surface excepting the fixingly- attaching part or of a part of the surface, of at least one of the reinforcement member 16 and/or the reinforcement plate 17 is composed of a film of oxide of at least one element of constituents of the reinforcement member 16 and/or the reinforcement plate 17.

36. 发明专利

JPH0973846A CONTACT MATERIAL FOR VACUUM BULB AND ITS MANUFACTURE 失效
公开(公告)号：JPH0973846A
公开(公告)日：1997-03-18
申请号：JP22820795
申请日：1995-09-05
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , SEKI KEISEI , YAMAMOTO ATSUSHI , KUSANO TAKASHI
IPC分类号： C22C9/00 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To provide a contact material for a vacuum bulb which is able to contribute toward realizing a vacuum bulb which is able to withstand a high voltage and is able to interrupt a large current. SOLUTION: A composition is made wherein there are contained copper, chromium particles a mean particle size of which is not greater than 30μm, and chromium particles a mean particle size of which is greater than 30μm. Surface condition of a CuCr contact brought about by breaking is caused to be such that chromium is dissolved as much as possible in a cu liquid phase by containing chromium particles a mean particle size of which is small, and breaking performance is thereby improved without deteriorating withstand voltage characteristics.

37. 发明专利

JP2013025870A Joining material for vacuum valve 有权
标题翻译：真空阀门接合材料
公开(公告)号：JP2013025870A
公开(公告)日：2013-02-04
申请号：JP2011156155
申请日：2011-07-14
申请人： Toshiba Corp , 株式会社東芝
发明人： KUSANO TAKASHI , YAMAMOTO ATSUSHI , SASAGE KOSUKE , KATO KENJI , SASAKI HARUKA
IPC分类号： H01H33/664 , B23K35/30 , C22C5/06 , C22C29/06 , C22C29/08 , C22C29/10 , H01H33/662
摘要： PROBLEM TO BE SOLVED: To provide a joining material for a vacuum valve, firmly joining a contact and an electrode and suitable for increased capacity and frequent opening/closing.SOLUTION: Contacts 6, 8 made of an Ag-carbide system alloy and electrodes 5, 9 made of Cu are joined with a joining material for a vacuum valve, respectively. In the joining material, Ag similar to the contact system and Cu similar to the electrodes are used as a base material, a metal same as a metal constituting the carbide of the contact system is added, and the carbide is formed at junctions 7, 10 where the contacts 6, 8 and the electrodes 5, 9 are joined, respectively.
摘要翻译：要解决的问题：提供一种用于真空阀的接合材料，牢固地接合接触和电极，并且适合于增加容量和频繁的打开/关闭。解决方案：由Ag碳化物系合金制成的接头6,8和由Cu制成的电极5,9分别与用于真空阀的接合材料接合。在接合材料中，使用类似于接触系统的Ag和类似于电极的Cu作为基材，添加与构成接触体系的碳化物的金属相同的金属，并且在接合部7,10处形成碳化物其中触点6,8和电极5,9分别连接。版权所有（C）2013，JPO＆INPIT

38. 发明专利

JP2012004076A Vacuum valve contact and manufacturing method thereof 审中-公开
标题翻译：真空阀联系人及其制造方法
公开(公告)号：JP2012004076A
公开(公告)日：2012-01-05
申请号：JP2010140693
申请日：2010-06-21
申请人： Toshiba Corp , 株式会社東芝
发明人： SASAKI HARUKA , ASARI NAOKI , YAMAMOTO ATSUSHI , KUSANO TAKASHI , SASAGE KOSUKE
IPC分类号： H01H33/664 , C22C9/00 , C22C27/06 , H01H1/04 , H01H11/04
摘要： PROBLEM TO BE SOLVED: To easily form an alloy layer including a conductive component and an arc-resistant component having a fine structure on a contact surface of a contact.SOLUTION: A vacuum valve contact for use in a vacuum valve having a pair of contacts which can be freely brought into contact with and separated from each other comprises a conductive component layer 20 and an alloy layer 22 which serves as the contact surface formed on the surface of the conductive component layer 20. The alloy layer 22 is formed by disposing an arc-resistant layer 21 on the conductive component layer 20 and fusing the arc-resistant component 21 and a predetermined volume of the conductive component layer 20 on the arc-resistant layer 21 side with energy irradiation to mix the conductive component layer with the arc-resistant component layer. In addition, particles 23b of the arc-resistant component are made fine by the energy irradiation.
摘要翻译：要解决的问题：为了容易地形成包含导电组分的合金层和在接触的接触表面上具有精细结构的耐电弧成分。解决方案：用于真空阀的真空阀接触器具有可以自由地与彼此接触和分离的一对触头，该导电组件层20和用作接触表面的合金层22 形成在导电性部件层20的表面上。合金层22是通过在导电性部件层20上设置耐电弧层21，将耐电弧成分21和导电性成分层20的规定体积固定在耐电弧层21侧进行能量照射，以将导电性成分层与耐电弧成分层混合。此外，通过能量照射使耐弧成分的粒子23b变细。版权所有（C）2012，JPO＆INPIT

39. 发明专利

JP2008019481A Material for contact point of vacuum valve 审中-公开
标题翻译：真空阀接点的材料
公开(公告)号：JP2008019481A
公开(公告)日：2008-01-31
申请号：JP2006192886
申请日：2006-07-13
申请人： Shibafu Engineering Corp , Toshiba Corp , 株式会社東芝 , 芝府エンジニアリング株式会社
发明人： KUSANO TAKASHI , YAMAMOTO ATSUSHI , SASAGE KOSUKE , OKUTOMI ISAO
IPC分类号： C22C29/08 , B22F3/10 , C22C1/05 , H01H1/023
摘要： PROBLEM TO BE SOLVED: To improve the fusing characteristics and breaking characteristics of a vacuum valve having a contact point made from an Ag-WC type material.
SOLUTION: The Ag-WC type material for the contact point of the vacuum valve has WC particles 22 which are an arc resistant component and comprise WC particles 22a having different large particle diameters and WC particles 22b having different small particle diameters dispersed in an Ag matrix 21 of an electroconductive component. The WC particles 22b1 and 22b2 having the small particle diameter exist in the triangle shape region formed by lines connecting respective central points of three adjacent WC particles 22a1, 22a2 and 22a3 having the large particle diameter.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提高具有由Ag-WC型材料制成的接触点的真空阀的熔融特性和断裂特性。解决方案：用于真空阀的接触点的Ag-WC型材料具有WC颗粒22，其是耐电弧组分，并且包括具有不同大粒径的WC颗粒22a和分散在其中的不同小粒径的WC颗粒22b 导电部件的Ag基体21。具有小粒径的WC颗粒22b1和22b2存在于通过连接具有大粒径的三个相邻WC颗粒22a1,22a2和22a3的各个中心点的线形成的三角形区域中。版权所有（C）2008，JPO＆INPIT

40. 发明专利

JP2007066753A Contact material for vacuum valve, and manufacturing method therefor 审中-公开
标题翻译：真空阀的接触材料及其制造方法
公开(公告)号：JP2007066753A
公开(公告)日：2007-03-15
申请号：JP2005252416
申请日：2005-08-31
申请人： Toshiba Corp , 株式会社東芝
发明人： YAMAMOTO ATSUSHI , KUSANO TAKASHI , SASAGE KOSUKE
IPC分类号： H01H33/66 , B22F3/02 , B22F3/10 , B22F9/08 , C22C9/00 , C22F1/00 , C22F1/08 , H01H1/025 , H01H11/04
摘要： PROBLEM TO BE SOLVED: To obtain a contact material for a vacuum valve, equipped concurrently with superior blocking characteristics and voltage resistance characteristics, and to obtain its manufacturing method.
SOLUTION: In the contact material for the vacuum valve with the mixed powder of Cu powder and Cr powder being the raw material, this is the contact material for the vacuum valve in which the content of the Cr is 23 to 50 wt.%, and with the mixed powder being used, by mixing a first powder manufactured by an atomization method with water as a cooling medium and a second powder manufactured by the atomization method with an inert gas as the cooling medium.
COPYRIGHT: (C)2007,JPO&INPIT

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