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1. 发明专利

DE69808388D1 未知
公开(公告)号：DE69808388D1
公开(公告)日：2002-11-07
申请号：DE69808388
申请日：1998-07-07
申请人： HITACHI LTD
发明人： NIHEI MASAYASU , ONUKI JIN , FUNAMOTO TAKAO , SAKURAI IZUMI , ONUMA AKIRA
IPC分类号： B23K9/167 , B23K9/09 , B23K9/173
摘要： A method for high frequency pulse welding and an apparatus therefor and use thereof are provided. In the method and the apparatus, a highly directive arc can be obtained by eliminating effect of inductance of the welding cable make a high frequency electromagnetic pinch force large. In a method and an apparatus for high frequency pulse arc welding which is performed by generating an arc between an inconsumable electrode or a consumable electrode arranged near a portion of a base metal to be welded and the base metal with main pulse current, when the main pulse current is shifted from ON to OFF, a reverse pulse current having a polarity opposite to a polarity of the main pulse is supplied between the electrode and the base metal to improve stiffness (directivity) of the arc by making rises and falls of the pulses steeper. A rail-car and a nuclear power plant obtained by the method are also provided.

2. 发明专利

DE69808388T2 未知
公开(公告)号：DE69808388T2
公开(公告)日：2003-06-12
申请号：DE69808388
申请日：1998-07-07
申请人： HITACHI LTD
发明人： NIHEI MASAYASU , ONUKI JIN , FUNAMOTO TAKAO , SAKURAI IZUMI , ONUMA AKIRA
IPC分类号： B23K9/167 , B23K9/09 , B23K9/173
摘要： A method for high frequency pulse welding and an apparatus therefor and use thereof are provided. In the method and the apparatus, a highly directive arc can be obtained by eliminating effect of inductance of the welding cable make a high frequency electromagnetic pinch force large. In a method and an apparatus for high frequency pulse arc welding which is performed by generating an arc between an inconsumable electrode or a consumable electrode arranged near a portion of a base metal to be welded and the base metal with main pulse current, when the main pulse current is shifted from ON to OFF, a reverse pulse current having a polarity opposite to a polarity of the main pulse is supplied between the electrode and the base metal to improve stiffness (directivity) of the arc by making rises and falls of the pulses steeper. A rail-car and a nuclear power plant obtained by the method are also provided.

3. 发明专利

JP2000149755A LEAD WIRE FOR FUSE-FREE CIRCUIT BREAKER, AND ITS MANUFACTURE AND FUSE-FREE CIRCUIT BREAKER 失效
公开(公告)号：JP2000149755A
公开(公告)日：2000-05-30
申请号：JP31431398
申请日：1998-11-05
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI , KOJIMA YOSHIYUKI , SHIMANO TERUMI , SEKIGUCHI TOSHIHIRO
IPC分类号： H01R43/00 , H01H1/58 , H01H73/20 , H01R4/02 , H02G1/14
摘要： PROBLEM TO BE SOLVED: To provide a lead wire having a terminal part, formed without heating, to be used as a connection part to another terminal of a multiconductor wire, by using a multiconductor wire having a terminal part obtained by compression molding in the irregular and uneven state where multiconductor wires are intertwined with each other disorderly, as a connection part between the arm of a moving part lead wire and an external connection terminal. SOLUTION: As a connection part between the arm of a moving part lead wire of this fuse-free circuit breaker and an external connection terminal, such a multiconductor wire is preferably used that a terminal forming part of the multiconductor wire is obtained by intermingling the multiconductor wire with forming assistants, the material selected from copper, tin, lead, silver and indium, having a linear, powdery, belt, plated, or sprayed shape or the like, and thereafter by executing compression molding in the disorderly intermingled, irregular and uneven state. And besides, such a multiconductor wire is used that the wire diameter is in the range of 0.01-1.5 mm, and that the number of wires is three or more, and that wire material is Cu, Al, Ag, Au or the like.

4. 发明专利

JPH1128568A HIGH FREQUENCY PULSE ARC WELDING METHOD, EQUIPMENT THEREFOR AND ITS USAGE 失效
公开(公告)号：JPH1128568A
公开(公告)日：1999-02-02
申请号：JP18348497
申请日：1997-07-09
申请人： HITACHI LTD
发明人： NIHEI MASAYASU , ONUKI HITOSHI , FUNAMOTO TAKAO , SAKURAI IZUMI , KONUMA AKIRA
IPC分类号： B23K9/167 , B23K9/09 , B23K9/173
摘要： PROBLEM TO BE SOLVED: To eliminate an influence of a cable inductance and to obtain a highly directed arc having high frequency electromagnetic pinch force. SOLUTION: In a high pulse arc welding method, in which an arc is generated between a non-consumable electrode or a consumable electrode arranged near a welding part and a base metal and then welding is conducted, when a main pulse current is transferred from ON to OFF, stiffness (directivity) of an arc is improved by impressing a reverse pulse current having a polarity different to the main pulse current and by making rising/falling of the pulse very sharp. Its equipment and a rail way vehicle and nuclear power plant using the welding method are obtained.

5. 发明专利

JPH11283683A MULTICORE CONDUCTOR MEMBER, ITS MANUFACTURE, VARIOUS APPLICATIONS USING THE SAME, AND THEIR MANUFACTURE 失效
公开(公告)号：JPH11283683A
公开(公告)日：1999-10-15
申请号：JP8080098
申请日：1998-03-27
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI , KOJIMA YOSHIYUKI , SHIMANO TERUMI
IPC分类号： B23K1/00 , H01H73/02 , H01J9/236 , H01J29/76 , H01R4/02 , H01R43/02
摘要： PROBLEM TO BE SOLVED: To provide a multicore conductor member having a good brazing part between the end faces of a multicore conductor wires and another conductor member, a method for manufacturing the same, a variety of applications thereof, and a method for manufacturing the same. SOLUTION: A multicore conductor member has a building conductor plate 2 wound on the ends of a multicore conductor wires 1 and a conductor member 2 brazed to the end faces of the multicore conductor wires 1 on which the bundling conductor plate 2 is wound. A method for manufacturing the multicore conductor member has a process for winding the bundling conductor plate 2 on the ends of the multicore conductor wires 1, a process for flatly machining the ends of he multicore conductor wires 1 on which the building conductor plate 2 is wound, and a process for brazing the conductor member to the surfaces of the ends machined. The method is used for a phase-free circuit breaker, an image display unit, etc.

6. 发明专利

JPH11122878A DESIGN DEVICE OF CONDUCTOR COIL END AND MEMORY MEDIUM STORING ITS DESIGN PROGRAM 失效
公开(公告)号：JPH11122878A
公开(公告)日：1999-04-30
申请号：JP28534697
申请日：1997-10-17
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI
IPC分类号： H02K3/04 , H02K15/04
摘要： PROBLEM TO BE SOLVED: To releave a labor for the design of conductor coil ends and reduce a time necessary for the design, by a method wherein the length of a terminal which can envelope the outer circumference of the bundle of a plurality of conductors whose arrangement is determined by an arrangement determining means is obtained by using the diameters of the conductors and the thickness of the terminal. SOLUTION: When an input unit 11 of a design device 10 is operated, a condition input picture is displayed on a display. If various conditions are inputted, an arrangement determining means 13 determines the arrangement of a plurality of conductors 22 in accordance with various arrangement pattern stored in an arrangement pattern memory unit 12 and the inputted number of conductors 22. Then, a terminal length calculation unit 14 obtains the length L of a terminal 23 with solder which can envelope the outer circumference of the bundle of the plurality of conductors 22 whose arrangement is determined. Then, a coil end outer dimension calculation unit obtains the outer dimensions H and Y of a conductor coil end 21 in a non-joint state wherein the conductors are not soldered to a terminal main part 24. The terminal length L and the outer dimensions H and Y of the conductor coil end 21 are displayed with the cross-sectional view of the conductor coil end 21 in the non-joint state. With this constitution, the conductor coil end can be designed in a short time with little labor.

7. 发明专利

JPH09314333A DEVICE FOR JUDGING LIFE OF ELECTRODE IN GTA WELDING 失效
公开(公告)号：JPH09314333A
公开(公告)日：1997-12-09
申请号：JP13161796
申请日：1996-05-27
申请人： HITACHI LTD
发明人： ASHIDA EIJI , FUJIKI DAISUKE , SAKURAI IZUMI , KOBAYASHI MASAHIRO , UEHARA TAKEO , HINO EIJI
IPC分类号： B23K9/167 , B23K9/095 , H04N7/18
摘要： PROBLEM TO BE SOLVED: To accurately judge the life of an electrode based on a clear picture of top end face of the electrode by spotwisely illuminating the face of object to be welded, being as the back ground of the welding electrode top end from vertical direction with an optical means from a specific direction. SOLUTION: Welding is executed by generating an arc between a welding electrode 4 and an object to be welded 1 with a welding machine 2, melting the object 1 with the heat of the arc and forming a welding bead 9. In the above GTA welding equipment, the electrode top end part is observed by a CCD camera 5 from the direction of 45 to 70 to the electrode 4, this picture is inputted to an image processor 8 and it is treated. In this treatment, for example, the electrode consumable amount and the welding metal amount are measured in comparison with the initial picture and the life of electrode 4 is judged. In this case, an illumination device 6 is arranged at the position mutually opposing to the CCD camera 5 about the electrode 4, the object 1 to be welded is illuminated spotwisely from the vertical direction. Therefore, the clear picture can be obtained, the life of electrode can be judged accurately and the electrode changing working can be automatized.

8. 发明专利

JP2000208227A TERMINAL FORMING METHOD OF MULTICORE INSULATING-COVERED WIRE, DEFLECTION COIL FOR CATHODE-RAY TUBE USING IT AND IMAGE DISPLAY DEVICE THEREWITH 失效
公开(公告)号：JP2000208227A
公开(公告)日：2000-07-28
申请号：JP1016199
申请日：1999-01-19
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI , KOJIMA YOSHIYUKI
IPC分类号： H04N3/16 , H01R4/26 , H01R11/11 , H01R11/12 , H01R43/00
摘要： PROBLEM TO BE SOLVED: To provide a terminal forming method to connect a multicore covered wire and an engaging shaped terminal properly with a brazing material of the inside of the terminal without stripping a covering material and inserting three to many (for example 2000) multicore covered wires into the engaging terminal, and provide a deflection coil for a cathode-ray tube and image display device therewith. SOLUTION: The tip of a multicore insulating-covered wire 1 comprises not less than three insulating-covered wires is engaged facing to the bottom of the inside of a U-shaped conductor terminal which has connecting auxiliary material, by being pressed and electrically conducted, the cover of the multicore insulating-covered wire 1 is carbonized and removed, then the multicore insulating-covered wire 1 and U-shaped conductor terminal are connected by melting the connecting auxiliary material. This is the terminal forming method for the multicore insulating-covered wire.

9. 发明专利

JP2000057855A MULTICORE CONDUCTOR WIRE AND ITS MANUFACTURE 失效
公开(公告)号：JP2000057855A
公开(公告)日：2000-02-25
申请号：JP22668898
申请日：1998-08-11
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI , KOJIMA YOSHIYUKI
IPC分类号： H01R4/02 , B23K11/11 , H01B5/00 , H01B7/00
摘要： PROBLEM TO BE SOLVED: To reduce the number of manufacturing processes and enhance the strength of a terminal, by providing the terminal made by press-molding end parts of separate wires entwined with each other. SOLUTION: Multicore conductor wires 1 are cut to a specified length, and they are collected into a bundle. With one end part of the bundle fixed, the multicore conductor wires 1 are brought into a dumpling-like state of shape such that they are disorderly, irregularly, and unevenly entwined with each other by twisting them by a circumferentially rotating brush and an axially rotating brush. A dumpling-like portion thereof is pressed into a provisionally molded part by using a die. A molded part 5 of a specified shape, or a terminal, is obtained by applying a press to the provisionally molded part. The terminal thus obtained exhibits high fastening force or binding force between separate wires and has high strength because it is formed with the wires entwined with each other into an irregular and uneven state of shape. When it is connected to another conductor terminal, for example, by brazing, brazing filler metal wets the two and satisfactory bonding can be achieved, and in the event of screw connection, electrically stable characteristics can be obtained.

10. 发明专利

JPH11219841A DESIGN DEVICE OF CONDUCTOR COIL TERMINAL OF DIFFERENT DIAMETER AND MEMORY MEDIUM STORED WITH DESIGN PROGRAM THEREOF 失效
公开(公告)号：JPH11219841A
公开(公告)日：1999-08-10
申请号：JP2297398
申请日：1998-02-04
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI , KOJIMA YOSHIYUKI
IPC分类号： H01F41/10
摘要： PROBLEM TO BE SOLVED: To enable conductor wires of different diameters to be lessened in design manpower and shortened in design time by a method wherein a calculating means is provided to obtain the length of a terminal which wraps up the periphery of a bundle of conductor wires prescribed in arrangement using the diameter of the conductor wires and the thickness of the terminal. SOLUTION: A designer judges whether a joined conductor coil terminal 21 has a required structure or not, looking at a display scope, and the designer inputs his judgement result through a key board comprised in an input section 11. The input, section 11 goes to a following step when the coil terminal has a required structure or returns to a design condition input procedure when the coil terminal has not a required structure, a design drawing indicated on the display scope is printed in a printed section 17, and then the design of a conductor coil terminal is finished. As mentioned above, when various design conditions are inputted into a design device 10, the arrangement of conductor wires 22 and 23 is automatically determined, the length of a terminal and the external dimensions of a conductor coil terminal are obtained, and the sectional drawing of an unjoined conductor coil terminal is displayed.

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