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1. 发明专利

JPS648297B2 失效
公开(公告)号：JPS648297B2
公开(公告)日：1989-02-13
申请号：JP14542779
申请日：1979-11-12
申请人： HITACHI LTD
发明人： MATSUMOTO TERUO , TAKAHASHI YOICHI , UMEHARA NOBORU
IPC分类号： G01N23/18 , G21F5/02 , G21K5/02

2. 发明专利

JPS63309376A METHOD FOR CONTROLLING WELDING TORCH POSITION BY PICTURE PROCESSING 失效
公开(公告)号：JPS63309376A
公开(公告)日：1988-12-16
申请号：JP14381687
申请日：1987-06-09
申请人： HITACHI LTD
发明人： KOIDE HIROO , TAKAHASHI YOICHI , IWAMA TSUGIO , MORISAWA JUNICHIRO
IPC分类号： B23K9/127
摘要： PURPOSE:To improve the following-up property of the welding torch control by calculating X coordinates of the prescribed temperature area centroid from an isothermal area pattern of a weld zone to control the torch position so that the coordinates coincide with a bisecting point of a maximum width part in the X axial direction. CONSTITUTION:The welding torch is provided with an image pickup device 2 consisting of a fiberscope 3, an infrared camera 4, etc., and the camera 4 is connected to a picture processing device 5. A welding state at the time of welding is picked up on an image by the camera 4 and the isothermal area pattern is detected by the processing device 5 and a predetermined temperature area is extracted to draw up a binarized figure. At this time, X coordinates XG of the centroid where calculated areas S1 and S2 are equal to each other are calculated and the position of the welding torch 1 is controlled so that the coordinates XG coincide with X coordinates Xc of the bisecting point of coordinates X1 and X2. Since the calculating time of the X coordinates is shortened, the following-up property of the torch control is improved.

3. 发明专利

JPS6157469B2 失效
公开(公告)号：JPS6157469B2
公开(公告)日：1986-12-06
申请号：JP11357578
申请日：1978-09-18
申请人： HITACHI LTD
发明人： TAKAHASHI YOICHI , YOKOYAMA TOSHIAKI , KIRIHARA SEISHIN , KUJI MITSURU
IPC分类号： F03B11/02

4. 发明专利

JPH0877051A COMMON DATA MANAGEMENT SYSTEM 失效
公开(公告)号：JPH0877051A
公开(公告)日：1996-03-22
申请号：JP21230594
申请日：1994-09-06
申请人： HITACHI LTD
发明人： YAMAGISHI TOSHIYUKI , UMEMOTO HAJIME , TAKAHASHI YOICHI
IPC分类号： G06F9/06 , G06F12/00
摘要： PURPOSE: To access common data from plural scopes by controlling the order of referring to a scope table through a current scope table, and assigning the same scope when a data type is the same and registering the common data. CONSTITUTION: When common data is newly generated, a right processing program 6 refers to the scope table 2 in the order of scopes defined in the current scope table 3; when there is data of the same data type, its scope and discrimination information are added to and defined in a right table 14 and the newly generated data is added to and defined in a data table 5. When data is updated, the right table 4 and data table 5 are referred to on the basis of the discrimination information of the data to be updated to obtain the scope and data type of the data to be updated, and then the scope table 2 is referred to in the scope order defined in the current scope data table 3, so that when the same scope and the same type are defined, the update object data in the data table 5 is updated.

5. 发明专利

JPH029538B2 失效
公开(公告)号：JPH029538B2
公开(公告)日：1990-03-02
申请号：JP10258884
申请日：1984-05-23
申请人： HITACHI LTD
发明人： TAKAHASHI YOICHI , KASHIWAKURA KOJI , MORISAWA JUNICHIRO , KOBAYASHI MASAHIRO
IPC分类号： B23K9/12 , B23K9/095 , B23K9/127

6. 发明专利

JPS6313668A WELDING CONDITIONS CONTROL METHOD 失效
公开(公告)号：JPS6313668A
公开(公告)日：1988-01-20
申请号：JP15606886
申请日：1986-07-04
申请人： HITACHI LTD
发明人： NEZU TOSHIO , SAGI SHIGEKIYO , MORISAWA JUNICHIRO , TAKAHASHI YOICHI , KOIDE HIROO
IPC分类号： B23K9/095 , B23K9/00
摘要： PURPOSE:To correctly control welding conditions by detecting a certain constant length from a welding start point and the temp. area of a molten pool and performing a heat input controlling with the average value thereof as the reference temp. area. CONSTITUTION:A molten pool 15 is observed by an infrared rays camera, a multivalue constant temp. line diagram is made by an infrared rays pick-up device 18 and the bivalent picture image shown in the figure is made by segmenting the diagram at >= a constant temp. by an image processing device 8. For a certain constant length after starting the welding this operation is subjected to a sampling on each a fixed time and its averaged one is taken as the reference temp. area. And this value is compared with the reference value by a computer 16, the welding speed deviation and welding current deviation are calculated and outputted via a welding control device 4. The effect of the material, plate thickness, groove shape, etc. is allowed to include the reference temp. area, so a correct welding control can be performed.

7. 发明专利

JPH01249267A GAS SEALING METHOD AND DEVICE FOR WELDING CYLINDRICAL BODY AND WELDING METHOD 失效
公开(公告)号：JPH01249267A
公开(公告)日：1989-10-04
申请号：JP7437488
申请日：1988-03-30
申请人： HITACHI LTD
发明人： NEMOTO KIYOMITSU , SHIMOYASHIKI SHIGEHIRO , YOSHIOKA SENJI , SATO YOSHIHIKO , TAKAHASHI YOICHI , YOKOTA NORIKATSU
IPC分类号： B23K37/00 , B23K9/02 , B23K9/028 , B23K9/035
摘要： PURPOSE:To reduce the quantity of consumption of seal gas and the time for the seal gas by limiting a gas seal region for welding to a local part by a sealing member and exhausting the region to supply the seal gas to the same region. CONSTITUTION:Two rubber balloons 5 for sealing a weld zone 2 at both sides with the weld zone 2 of piping 1 to be welded between and a set of devices thereof are moved to the prescribed positions of the weld zone 2 by a moving rope 12. Ar gas is introduced and pressed by flexible coupling and an outer conduit 6 from an Ar gas supply system 9 and a piping inner wall and the rubber balloons 5 are stuck together to seal it. In addition, since the piping 1 weld zone is provided with a groove gap, two split type weld zone covers 3 are fitted to seal this. Ar gas atmospheres 10 partitioned by the rubber balloons 5 are evacuated from a flexible inner pipe 7 for evacuation and supplying the Ar gas and air is exhausted by an evacuation system 8. The Ar gas is then introduced from the flexible inner pipe 7 to fill the weld zone atmospheres 10.

8. 发明专利

JPH01148467A MANUFACTURE OF HEAT EXCHANGER 失效
公开(公告)号：JPH01148467A
公开(公告)日：1989-06-09
申请号：JP30723387
申请日：1987-12-04
申请人： HITACHI LTD
发明人： TAKAHASHI YOICHI , ONIISHI MASAKI , KOIDE HIROO , MIURA YUICHI , IWAMA TSUGIO
IPC分类号： B21D53/06 , B23K9/00 , B23K9/02 , B23K9/028
摘要： PURPOSE:To form a heat exchanger under excellent workability by a simple device by fixing one end of a heat exchanger tube shorter than a normal heat exchanger tube on a tube plate of one side and subsequently, heating a part of the heat exchanger tube and extending the other end up to the appropriate position with an opposite side tube plate to fix it on the tube plate. CONSTITUTION:The body 2 is welded to a couple of tube plates 1a and 1b and in consideration of assembling accuracy and contraction by welding and expansion length by heating in advance, the heat exchanger tube 3 whose both end faces are machined to the length shorter somewhat than the normal heat exchanger tube is inserted from a heat exchanger tube insertion hole of the tube plate 1b of one side and its one end face is welded and fixed to be tube plate 1b. The other end face of the heat exchanger tube 3 is in a state shorter by d1 than the appropriate position with respect to the tube plate 1a and the end face of the heat exchanger tube 3 is extended up to the appropriate position of the tube plate 1b by heating by a heating source 4 and the pertinent distance D between the tube plate 1b and the end face of the heat exchanger tube 3 is maintained. In this state, the end face of the heat exchanger tube 3 is welded and fixed to the tube plate 1a to complete assembling of the tube plates of the heat exchanger with the heat exchanger tube.

9. 发明专利

JPS62278447A TUBE INSERTION TYPE ULTRASONIC FLAW DETECTION PROBE 失效
公开(公告)号：JPS62278447A
公开(公告)日：1987-12-03
申请号：JP12125886
申请日：1986-05-28
申请人： HITACHI LTD
发明人： SAKAI TOYOHIDE , TSUDA KATSU , TAKAHASHI YOICHI
IPC分类号： G01N29/04 , G01N29/26 , G01N29/265
摘要： PURPOSE:To enable smooth adaption to changes in the inner diameter of a tube, by arranging a centering fin to be expanded or reduced freely with the tube utilizing a force of a fluid therein and hold an ultrasonic probe at a correct position. CONSTITUTION:A pair of taper guides 4 each having a tapered surface mounted concentrically are provided on both end faces of an ultrasonic probe body 2. A pair of centering fins 3 have an outer cylindrical section 3b to be inserted internally into a tube 1 to be inspected and an inner cylindrical section 3c to be inserted externally into the taper guides 4 connected with a pressure receiving section 3a. The outer cylindrical section 3b is provided with a through hole 6. The centering fins 3 is divided into two circumferentially. The taper guides 4 each have a dowel groove-shaped tapered groove 5 and holds the centering fins 3 thus divided into two. Then, as the inner cylindrical section 3c slides along the tapered surface of the taper guide 4 with the centering member 3 receiving a force of a fluid, the diameter of the outer cylindrical section 3b is expanded or reduced thereby always holding the probe body 2 at a proper position.

10. 发明专利

JPS616278B2 JPS616278B2 - 失效
公开(公告)号：JPS616278B2
公开(公告)日：1986-02-25
申请号：JP5271478
申请日：1978-05-04
申请人： Hitachi Ltd
发明人： TAKAHASHI YOICHI , SATO HARUMASA , YOSHIKAWA TSUGIO , KONO MICHITADA
IPC分类号： F16C33/12 , F03B3/18 , F03B15/18
CPC分类号： Y02E10/223 , Y02E10/226

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