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1. 发明专利

JPH10255606A MANUFACTURE OF VACUUM VALVE 失效
公开(公告)号：JPH10255606A
公开(公告)日：1998-09-25
申请号：JP5317197
申请日：1997-03-07
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KUSANO TAKASHI , NAKABASHI MASAKO , OSABE KIYOSHI , TAKIGAWA RIKA , MARUYAMA MIHO , YAMAMOTO ATSUSHI , SEKI KEISEI , OSHIUMI KATSUMI
IPC分类号： B23K1/19 , C04B37/02 , H01H33/66
摘要： PROBLEM TO BE SOLVED: To attain high reliability, excellent cost performance, and environment measures by performing metallizing and airtight faying at the same time. SOLUTION: Manufacture of this vacuum valve has a first process to finish ceramic member surface to the surface roughness of 0.1 to 15μm, a second process to arrange a brazing material composing foil or line state Ag or/and Cu and Ti so as to be 0.05 to 4wt.% of Ti between an opposite ceramic member and a metal member, and a third process to seal and deposit the ceramic member and the metal member at a melting temperature or more determined by Ti quantity in non-oxide atmosphere.

2. 发明专利

JPH10101304A OXYGEN RECYCLE TREATMENT DEVICE AND OZONE REACTION DEVICE 失效
公开(公告)号：JPH10101304A
公开(公告)日：1998-04-21
申请号：JP27886796
申请日：1996-09-30
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： TAGUCHI KENJI , ISHIKAWA KATSUHIRO , SATO YUZURU , SHIBAZAKI KAZUO , TANAKA KOJI
IPC分类号： C02F1/78 , C01B13/10
摘要： PROBLEM TO BE SOLVED: To provide an oxygen recycle treatment device for surely and inexpensively removing carbon dioxide in a waste ozone gas. SOLUTION: A liquid sodium carbon reaction device 37 is provided in a circulation line 80 from an ozone reaction device 15 to an ozonizer 1. Carbon dioxide in the waste ozone gas generated in the ozone reaction device 15 is removed by the liquid sodium carbonate reaction device 37 to turn the waste ozone gas to a raw material oxygen. Oxygen generated in an oxygen generator 1 is replenished to the raw material oxygen in which carbon dioxide is removed and the raw material oxygen is fed to the ozonizer 1.

3. 发明专利

JPH1092276A VACUUM VALVE AND ITS MANUFACTURE 失效
公开(公告)号：JPH1092276A
公开(公告)日：1998-04-10
申请号：JP24596496
申请日：1996-09-18
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KUSANO TAKASHI , SEKI KEISEI , YAMAMOTO ATSUSHI , NAKABASHI MASAKO , MARUYAMA MIHO
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To improve the airtightness and connecting strength of a vacuum valve by forming the brazing filler metal inserted and mounted for the connection of a sealing metal and a ceramic insulating container with Ag and Ti or the like at a specific ratio. SOLUTION: A pair of separable electrodes are arranged in a vacuum container airtightly sealed with a sealing metal via a brazing filler metal at the end section of a ceramic insulating container outer tube to form a vacuum valve. The inserted and mounted brazing filler metal is composed of the first metal containing at least one of Ag and Cu and the second metal containing at least one of Ti, Cr, V, Zr, Hf, and the percent content of the second metal is set to 0.05-5wt.%. The vacuum valve exerting a stable breaking property and a restriking characteristic over a long period is obtained.

4. 发明专利

JPH1076391A BRAZING FILLER METAL 失效
公开(公告)号：JPH1076391A
公开(公告)日：1998-03-24
申请号：JP23440096
申请日：1996-09-04
申请人： TOKURIKI HONTEN KK , SHIBAFU ENG KK , TOSHIBA F A SYSTEM ENG , TOSHIBA CORP
发明人： WATANABE OSAMU , NISHIJIMA MICHIHIKO , OKUTOMI ISAO , OKAWA MIKIO , KUSANO TAKASHI , YAMAMOTO ATSUSHI , SEKI KEISEI
IPC分类号： B23K35/14 , B23K35/30
摘要： PROBLEM TO BE SOLVED: To join a ceramic and ceramic, a metal and metal, and a ceramic and metal respectively with high reliability by using a brazing filler metal integrated a Cu-Ti alloy specified the amount of a Ti with an Ag or Ag alloy. SOLUTION: The Cu-Ti alloy specified the value of [Ti/(Cu+Ti)] to be 0.05-5% is integrated with the Ag or Ag alloy mainly composed of the Ag to form the brazing filler metal. In this brazing filler metal, 0.05-5% Ti is preferably entered into a Cu matrix with respect to the Cu-Ti alloy. By this way, the Ti is uniformly dispersed into the Cu matrix to obtain excellent workability. The value of Ag ratio [Ag/(Ag+Cu)] is preferably specified to be 30% or above as an Ag-Cu with respect to the Ag alloy. The Ag or Ag alloy is arranged on the surface of the Cu-Ti alloy and hot fixed by pressure at the temperature of the solid phase point of the Ag or Ag alloy or below under a vacuum or non-oxidizing atmosphere, whereby the integration is executed.

5. 发明专利

JPH09213153A CONTACT MATERIAL FOR VACUUM BREAKER AND MANUFACTURE OF CONTACT MATERIAL 失效
公开(公告)号：JPH09213153A
公开(公告)日：1997-08-15
申请号：JP2074296
申请日：1996-02-07
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , SEKIGUCHI SHIGEAKI , SEKI KEISEI , KUSANO TAKASHI , YAMAMOTO ATSUSHI
IPC分类号： H01H1/025 , H01H1/02 , H01H11/04
摘要： PROBLEM TO BE SOLVED: To provide a contact material for vacuum breaker, which can stabilize the fusion-resistant and non-consumable characteristics and excels in the breaking performance. SOLUTION: This contact material for a vacuum breaker is composed of a high conductive component containing either or both of Cu and Ag, an arc resistance component having particle sizes between 0.1-150μm and containing Cr in at least 90vol.% of the whole contents, and the first auxiliary component having particle sizes between 0.1-150μm and containing either or both of Al and Si, and these are mixed together uniformly to prepare a mixture powder, and the relative density is made over 88%.

6. 发明专利

JPH09198975A VACUUM VALVE AND CONTACT POINT FOR VACUUM VALVE 失效
公开(公告)号：JPH09198975A
公开(公告)日：1997-07-31
申请号：JP495696
申请日：1996-01-16
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KUSANO TAKASHI , SEKI KEISEI , YAMAMOTO ATSUSHI , SEKIGUCHI SHIGEAKI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To improve cutoff performance by providing a discontinuous portion in the composition change of components at least at one (r) section when the relation y=f(r) is satisfied between the component quantity (y) of the arc- resistant component and the distance (r) from the contact point center. SOLUTION: Contact points for a vacuum valve with the radius R having the same component composition for the same radius contain the conductive component, arc-resistant component, and auxiliary component as required. When the relation y=f(r) is satisfied between the component quantity y(0

7. 发明专利

JPH09106743A VACUUM BULB 失效
公开(公告)号：JPH09106743A
公开(公告)日：1997-04-22
申请号：JP26261595
申请日：1995-10-11
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KUSANO TAKASHI , SEKI KEISEI , YAMAMOTO ATSUSHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To prevent decrease of airtightness and joining strength resulting from a metal compound produced between active metal contained in brazing material and a sealing fitting. SOLUTION: Plating of Cu, Ag, or CuAg alloy is conducted on the brazing faces of sealing fittings 3A, 3B. Thereby, not all the plating layer is allowed to fuse but one part is left as a solid portion so that the diffusion of Ni in the sealing fitting 3A, 3B is suppressed.

8. 发明专利

JPH08220158A DETERIORATION DETECTOR FOR CREEPING INSULATION 失效
公开(公告)号：JPH08220158A
公开(公告)日：1996-08-30
申请号：JP2032095
申请日：1995-02-08
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： WATANABE HIROSHI , OKUBO ATSUMI , IDA SADAO
IPC分类号： G01R31/12 , G01R27/02
摘要： PURPOSE: To perform cleaning systematically by grasping the extent of contamination on the surface of an insulator. CONSTITUTION: An insulating board 6 is disposed continuously to an insulator and a pair of comb electrodes 1 are mounted on the upper surface of the insulating board 6 while facing each other through a creeping distance of 0.3mm. Each electrode 1 is connected with an AC power supply 2. Current flowing through each electrode 1 is detected by means of a dielectric characteristics detector 3. When the insulation resistance between the electrodes 1 decreases below 10 Ω, an alarm is actuated by a signal delivered from the dielectric characteristics detector 3.

9. 发明专利

JPH1139973A CONTACT MATERIAL FOR VACUUM BULB 失效
公开(公告)号：JPH1139973A
公开(公告)日：1999-02-12
申请号：JP19296697
申请日：1997-07-18
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , SEKI KEISEI , YAMAMOTO ATSUSHI , KUSANO TAKASHI
IPC分类号： C22C5/06 , C22C9/00 , H01H1/02 , H01H1/023 , H01H1/025
摘要： PROBLEM TO BE SOLVED: To provide a contact material for vacuum bulbs which provides a stable breakdown voltage characteristic while suppressing the probability of generation of restriking. SOLUTION: A contact material for at least either one of a fixed side contact 13a and a movable side contact 13b fixed in electrodes 7, 8, respectively contains a conductive component of Cu and/or Ag together with an ignition-resistant component of 15 wt.%-80 wt.% of one or more elements selected from Cr, W, Mo, and Ti as main components. Further, the contact material contains also an auxiliary component of either metal elements or non-metal elements forming solid solution with the conductive component in 0.02 wt.% or lower content and not more than the atomic weight of the conductive component and at least 0.5 times as much as the oxygen content.

10. 发明专利

JPH1116457A MANUFACTURE OF VACUUM CONTAINER 失效
公开(公告)号：JPH1116457A
公开(公告)日：1999-01-22
申请号：JP16903897
申请日：1997-06-25
申请人： SHIBAFU ENG KK , TOSHIBA CORP
发明人： OKUTOMI ISAO , KUSANO TAKASHI , SEKI KEISEI , YAMAMOTO ATSUSHI
IPC分类号： H01H33/66
摘要： PROBLEM TO BE SOLVED: To enhance reliability by locally bringing a specified ratio of activated metal contained into contact with a ceramic container before temperature rising, and airtightly sealing a lid body to the ceramic container with a brazing material containing the specified ratio of activated metal. SOLUTION: The ratio X of activated metal in a brazing material, coming into contact with a ceramic container before temperature rising is specified to 0 ] of the activated metal is specified to 10 X . Thereby, oxidation before brazing of the activated metal such as Ti, Zr, Hf, Nb, Ta and Cr is prevented, and sealing by reduction of the ceramic is not obstructed. Drop in joining capability caused by forming, during cooling, of an intermetallic compound of the activated metal not contributing to joining and Ni in the cover body is also prevented. As the brazing material, an alloy containing Ti and Ag or Cu of the main component, or a clad material integrally having Ag-Cu on both sides of Ti is preferable, and addition of at least one of In, Sn, Mn, Zn, and Cd is preferable.

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