专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPS62150618A MANUFACTURE OF CONTACT ALLOY FOR VACUUM VALVE 失效
公开(公告)号：JPS62150618A
公开(公告)日：1987-07-04
申请号：JP29134285
申请日：1985-12-24
申请人： TOSHIBA CORP
发明人： OKUTOMI ISAO , CHIBA SEIJI , SEKIGUCHI SHIGEAKI
IPC分类号： H01H1/023 , B22F3/00 , H01H20060101 , H01H1/02 , H01H1/025 , H01H11/04 , H01H33/66

12. 发明专利

JPS62127449A ELECTRODE MATERIAL FOR ELECTRIC DISCHARGE MACHINING AND ITS PRODUCTION 失效
公开(公告)号：JPS62127449A
公开(公告)日：1987-06-09
申请号：JP26389385
申请日：1985-11-26
申请人： TOSHIBA CORP
发明人： SEKIGUCHI SHIGEAKI , MATSUURA IKUO
IPC分类号： B23H1/06 , C22C1/04 , C22C27/04
摘要： PURPOSE:To manufacture an electrode material for electric discharge machining excellent in workability and having superior consumption characteristics, by mixing powdered W and powdered Ca, by subjecting the resulting powder mixture to compacting and sintering, and by infiltrating Cu or Ag into the obtained sintered compact so as to form a specific composition. CONSTITUTION:The powdered W and the powdered Ca are mixed in a prescribed ratio, and the powder mixture is compacted and sintered with proper addition of a binder. It is preferable that the average grain size of above- mentioned powdered W is 2-10mum and that sintering is carried out at about 1,000-1,200 deg.C in a nonoxidizing atmosphere. Then Cu and/or Ag is infiltrated into a skeleton consisting of W and Ca obtained by the above-mentioned sintering at about 1,100-1,300 deg.C, so that electrode material for electric discharge machining having a composition consisting of 0.3-3.0wt% Ca, 20-40wt% of Cu and/or Ag, and the balance W can be obtained. The above electrode material is reduced in bores, excellent in workability such as grindability, polishability, etc., and further reduced in electrode consumption in the working of super hard materials, so that long-lived electrodes can be obtained.

13. 发明专利

JPS5935643A Production of contact point material 失效
标题翻译：生产接触点材料
公开(公告)号：JPS5935643A
公开(公告)日：1984-02-27
申请号：JP14384482
申请日：1982-08-19
申请人： Toshiba Corp
发明人： OKUTOMI ISAO , SUZUKI HIDEO , SEKIGUCHI SHIGEAKI , MATSUURA IKUO
IPC分类号： B22F1/00 , C22C1/04 , C22C1/05 , C22C1/10 , H01H11/04
摘要： PURPOSE: To produce a sintered type contact point material having a uniform contact point characteristic by mixing a part of the main componet material powder of roughly the same amt. as the amt. of auxiliary component material powder with the auxiliary powder then mixing the remaining main component material powder therewith.
CONSTITUTION: A main component material is constituted of about 15W65% highly conductive components consisting of at least 1 kind of Cu and Ag, and the balance an arc resistant component of at least 1 kind among W, Mo, Cr, Ti, WC, MoC, Cr
3 C
2 , TiC. An auxiliary component material is constituted of a component for preventing melt sticking consisting at least 1 kind among Bi, Te, Sb, and a component for improving sintering property consisting of at least 1 kind among Ni, Fe, Co, B. The content of the auxiliary component material in the product, i.e., contact point material, is set at ≤3wt%, and part of the main component material of roughly the same amt. as the amt. of the auxiliary component material is first mixed with the auxiliary component material to prepare a primary powder mixture; further, the remaining main component material is mixed therewith. Such powder mixture is molded under about 1W10 tons/ cm
2 pressure and is sintered at about 1,000W1,300°C in a non-oxidative atmosphere, whereby the contact point material is obtd.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过混合大致相同的主要成分材料粉末的一部分，制造具有均匀接触点特性的烧结型接触点材料。作为amt。辅助成分材料粉末与辅助粉末混合，然后将剩余的主要成分材料粉末与其混合。构成：主要成分材料由至少1种Cu和Ag组成的约15-65％的高导电性组分构成，余量为W，Mo，Cr，Ti，WC中至少1种的电弧组分，MoC，Cr3C2，TiC。辅助成分材料由用于防止在Bi，Te，Sb中至少1种的熔融粘附的组分和用于改善由Ni，Fe，Co，B中的至少1种组成的烧结性的组分构成。产品中的辅助成分材料即接触点材料设定为<= 3wt％，主要成分材料的一部分大致相同。作为amt。的辅助成分材料首先与辅助成分材料混合以制备初级粉末混合物; 此外，剩余的主要成分材料与其混合。将这种粉末混合物在约1-10吨/ cm 2的压力下成型，并在非氧化性气氛中在约1,000-1300℃下烧结，由此可以接触接触材料。

14. 发明专利

JPS5925948A Tungsten alloy for electrode of ignition plug 失效
标题翻译：用于点火电极的钨合金
公开(公告)号：JPS5925948A
公开(公告)日：1984-02-10
申请号：JP13470582
申请日：1982-08-03
申请人： Toshiba Corp
发明人： KOIZUMI HIDEO , FUKUHARA YOSHIO , HAYASHI KEISUKE , SEKIGUCHI SHIGEAKI , MATSUURA IKUO
IPC分类号： C22C27/04 , H01T13/20 , H01T13/39
摘要： PURPOSE: To improve the oxidation resistance of an electrode of an ignition plug by using tungsten contg. a high m.p. metal as the material of the electrode.
CONSTITUTION: An electrode of an ignition plug is made of tungsten contg. 3W 10wt% Re and/or Ta as high m.p. metals or tungsten contg. ThO
2 or ZrO
2 as an electron emitting substance as well as Re and/or Ta. The resulting electrode has improved oxidation resistance and improved resistance to consumption due to arc by the effect of the combination of the high m.p. metal with the electron emitting substance.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过使用钨丝来提高火花塞电极的抗氧化性。高温金属作为电极的材料。构成：火花塞的电极由钨制成。 3-10wt％Re和/或Ta高。金属或钨 ThO 2或ZrO 2作为电子发射物质以及Re和/或Ta。所得电极具有改善的抗氧化性，并且通过高熔点组合的效果，由于电弧而提高了耐消耗电流。金属与电子发射物质。

15. 发明专利

JPH0512965A MANUFACTURE OF CONTACT ALLOY FOR VACUUM VALVE 失效
公开(公告)号：JPH0512965A
公开(公告)日：1993-01-22
申请号：JP16492291
申请日：1991-07-05
申请人： TOSHIBA CORP
发明人： OKUTOMI ISAO , SEKI KEISEI , YAMAMOTO ATSUSHI , OKAWA MIKIO , SEKIGUCHI SHIGEAKI , MAJIMA YOSHIKO
IPC分类号： C22C9/00 , B22F1/00 , C22C1/04 , C22C27/06 , H01H1/02 , H01H11/04 , H01H33/66
摘要： PURPOSE:To reduce the re-arcing frequency to a grear extent. CONSTITUTION:A Cr powder as crude material is crushed is crushed into mean particle sizes 1-250mum, to which a carbon powder of approx. the same particle size is added in an amount 50-5000ppm. Thus a Cr-C mixture powder is accomplished, wherefrom a Cr-C molding is produced, which is subjected to a 800-1400 deg.C heat treatment in a non-oxidative atmosphere to produce degassed Cr lump. This Cr lump is crushed to produce a degassed Cr powder of mean particle sizes 5-250 mum, which in an amount 20-80Wt.% is mixed with Cu and/or Ag as the remainder. The resultant is embodied and subjected to a solid phase sintering process.

16. 发明专利

JPH02288033A CONTACT MATERIAL FOR VACUUM BULB 失效
公开(公告)号：JPH02288033A
公开(公告)日：1990-11-28
申请号：JP10874289
申请日：1989-04-27
申请人： TOSHIBA CORP
发明人： OKUTOMI ISAO , CHIBA SEIJI , YAMAMOTO ATSUSHI , SEKI KEISEI , SEKIGUCHI SHIGEAKI
IPC分类号： H01H33/66
摘要： PURPOSE:To obtain a vacuum bulb excellent in current cutting property and breaking property by dispersing the discontinuous phase of a high conductive component finely and uniformly at intervals of a specified value or less in high conductive matrix. CONSTITUTION:In contact material for Ag-Cu-metallic boride vacuum bulb which contains high conductive components consisting of Ag and Cu and arc- resistant components consisting of metallic borides, for the content of high conductive components, the total quantity of Ag and Cu(Ag+Cu) is 10-70wt.%, and the ratio of Ag[Ag/ (Ag+Cu)] occupying in the total quantity of Ag and Cu is 40-80wt.%. Hereupon, the content of arc-resistant components are 35-80wt.%. The structure of this contact material consists of matrix of high conductive component, discontinuous phase of 5mum or less in thickness or width, and discontinuous particles of arc-resistant components of 10mum or less. And the discontinuous phase of the high conductive components is dispersed finely and uniformly at intervals of 5mum or less in this matrix.

17. 发明专利

JPH02270232A CONTACT MATERIAL FOR VACUUM VALVE 失效
公开(公告)号：JPH02270232A
公开(公告)日：1990-11-05
申请号：JP9020289
申请日：1989-04-10
申请人： TOSHIBA CORP
发明人： OKUTOMI ISAO , SEKIGUCHI SHIGEAKI , SEKI KEISEI , YAMAMOTO ATSUSHI , CHIBA SEIJI , HONMA MITSUTAKA
IPC分类号： H01H33/66
摘要： PURPOSE:To obtain good low shredding current characteristic and high frequency wave arc extinction characteristic by optimizing the content af Ag and Cu, and their ratio and existing condition, and setting the grain size of arc-resistant component fine. CONSTITUTION:For the inclusion of high conductive components, the total of Ag and Cu (Ag+Cu) is set at 20-65wt.%, the ratio of Ag included in the total of Ag and Cu [Ag/(Ag+Cu)] is set at 40-80wt.%, and the inclusion of arc-resistant component is set at 30-80wt.%. The organization of contact material consists of matrix of the high conductive components, a discontinuous layer of a thickness or width of less than 5mum, and discontinuous grains of less than 3mum of the arc-resistant components, and the discontinuous layer of the high conductive components is scattered finely and uniformly in the matrix at an interval of less than 5mum. If dielectric breakdown occurs at the time of a fine gap between electrode, a load current of a commercial frequency is easy to rise, and production of an excessive surge voltage is restricted, thereby low shredding current characteristics and high frequency arc extinction characteristic can be improved.

18. 发明专利

JPH0237634A VACUUM VALVE 失效
公开(公告)号：JPH0237634A
公开(公告)日：1990-02-07
申请号：JP18565688
申请日：1988-07-27
申请人： TOSHIBA CORP
发明人： SEKIGUCHI SHIGEAKI , MATSUURA IKUO , SEKI KEISEI , OKUTOMI ISAO
IPC分类号： H01H33/66 , H01H1/02
摘要： PURPOSE:To improve the deposition resistance and reignition occurrence rate by arranging a contact made of Cu-Cr alloy by the inherent sintering method on one end and arranging a contact made of Cu-Cr alloy by the infiltration method on the other end. CONSTITUTION:A solid phase sintered Cu-Cr alloy is formed by molding and sintering the Cu and Cr metal powder by the powder metallurgy method, the mixing ratio can be changed with the wide composition ratio of Cr 25-75wt.% against Cu 75-25wt.%. The infiltrated Cu-Cr alloy on one end is formed by sintering the Cr powder by the powder metallurgy method as a skeleton and infiltrating Cu into void sections of this skeleton. The mixing ratio is the composition ratio of Cr 40-75wt.% against Cu 60-25wt.%. The deposition resistance and reignition occurrence rate are improved while merits of the contacts of respective Cu-Cr alloys are maintained.

19. 发明专利

JPS62284029A PRODUCTION OF CONTACT POINT ELEMENT FOR VACUUM VALVE 失效
公开(公告)号：JPS62284029A
公开(公告)日：1987-12-09
申请号：JP12568086
申请日：1986-06-02
申请人： TOSHIBA CORP
发明人： SEKIGUCHI SHIGEAKI , OKUTOMI ISAO
IPC分类号： H01H11/04 , B22F3/26 , C22C1/04
摘要： PURPOSE:To produce a contact point element for a vacuum valve having excellent reliability by putting high-purity Cr powder into a container having a plateau-shaped projection at the center of the bottom, sintering the same in a nonoxidative atmosphere to form a Cr skeleton and infiltering high-purity Cu or Ag therein. CONSTITUTION:The high-purity Cr particles 2 which contain

20. 发明专利

JPS62224648A ELECTRIC CONTACT POINT MATERIAL AND ITS PRODUCTION 失效
公开(公告)号：JPS62224648A
公开(公告)日：1987-10-02
申请号：JP6580386
申请日：1986-03-26
申请人： TOSHIBA CORP
发明人： SEKIGUCHI SHIGEAKI , MATSUURA IKUO
IPC分类号： C22C1/05 , C22C1/04 , C22C5/06 , C22C29/08 , C22C32/00
摘要： PURPOSE:To manufacture an electric contact point material reduced in contact resistance, its variance, and consumption, by preparing an alloy which consists of specific percentage of silver, Co, carbon, and WC and in which maximum and average values by a specific contact resistance test are specified, respectively. CONSTITUTION:The alloy consisting of, by weight, 45-75% silver, 0.5-10.0% Co, 0.01-2.5% carbon, and the balance essentially WC is prepared. By using fixed and movable contacts formed of the above alloy, a making and breaking operation consisting of turning on an electric current for 0.5sec under the conditions of 200V, 100A, and 0.8 power factor and cutting off an electric current for 2.0sec is repeated 10,000 or more times and contact resistance is measured every 100 times. The maximum and average values of the contact resistance of the above alloy in the above contact resistance test are regulated to

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式