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1. 发明专利

JP2002301570A WELDING EQUIPMENT 失效
公开(公告)号：JP2002301570A
公开(公告)日：2002-10-15
申请号：JP2001104625
申请日：2001-04-03
申请人： MITSUBISHI HEAVY IND LTD
发明人： TSUNATANI TOSHIHIKO , NAGURA YASUMI , FUJITANI YASUYUKI , IKEDA TAKAO , UEDA TAKASHI
IPC分类号： B23K9/167 , B23K9/00 , B23K9/095
摘要： PROBLEM TO BE SOLVED: To provide a welding equipment which is capable of efficiently performing welding with high quality by automatic remote controlling. SOLUTION: The welding equipment which having TIG welding torches 11a and 11b for TIG welding a nozzle stub 8 penetrating a lower end plate (end plate section) 7 constituting a nuclear reactor vessel at narrow gaps 9 worked at the peripheral edges of the nozzle stub through-holes is constituted by mounting a welding equipment body 10 which is provided with two units of the TIG welding torches 11a and 11b around a swiveling shaft 18 and supports these torches in a manner as to make the multispindle movement inclusive of at least the swiveling shaft possible on traversing beams 3 supported in a lower cylinder 1 constituting the nuclear reactor vessel by means of a traversing truck 5 and a vertical moving truck 6.

2. 发明专利

JPH1015679A DEFECTIVE CUTTING PART CONFIRMING METHOD IN LASER CUT 失效
公开(公告)号：JPH1015679A
公开(公告)日：1998-01-20
申请号：JP18876596
申请日：1996-06-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： ISHIDE TAKASHI , IKEDA TAKAO
IPC分类号： G01J1/42 , B23K26/00 , B23K26/03 , B23K26/38 , B23K26/02
摘要： PROBLEM TO BE SOLVED: To easily detect the generation of defective cut part, and to easily detect even especially under in-process during machining by sampling an optical energy level of lower side range from the central part of the front face of cut part in the generation of various defective cut part. SOLUTION: An image-formation optical system 4 is always positioned at an upper stream side of a cutting line 2A of already cut with a laser beam 3, and it is arranged so that the lower side part of a cut part fore face 2 is always observed directly. The light energy of the lower side part of the cut part fore face 2 sampled with the image-formation optical system 4 is transmitted to a photoelectric converter 6 with an optical fiber 5, it is picked up as an electric output corresponding to the light energy of the cut part fore face 2 and it is sent to a computer 7. In the computer 7, in a case of generating a defective cut part at the cut part fore face 2 position, because the change of the electric output is generated, so the generation of the defective cut part is judged easily with the computer 7 side, a signal of cutting stop is transmitted to a controller 8 and cutting is stopped.

3. 发明专利

JPH07243018A SURFACE MODIFICATION METHOD FOR HEAT INSULATING FILM 失效
公开(公告)号：JPH07243018A
公开(公告)日：1995-09-19
申请号：JP3691994
申请日：1994-03-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： KANIKAWA MASAYA , IKEDA TAKAO , KAWAI YUKIHIRO
IPC分类号： C23C14/06 , C23C4/10 , C23C4/12 , C23C14/08
摘要： PURPOSE:To perform surface modification capable of preventing the peeling of a heat insulating film composed of a ceramic layer formed. on a base material via a metallic binding layer. CONSTITUTION:A heat insulating film 3 (about 200-400mum thickness) composed of ceramics is formed on a base material 1 via a metallic binding layer 2 by means of atmospheric pressure plasma thermal spraying. A surface modified layer 7 (about 10-100mum thickness) composed of a dense film (

4. 发明专利

JPH06277854A METHOD FOR JOINING SHORT FIBER REINFORCED METALLIC MATERIALS 失效
公开(公告)号：JPH06277854A
公开(公告)日：1994-10-04
申请号：JP5802793
申请日：1993-02-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOKIKAWA MASAYA , IKEDA TAKAO , KAWAI YUKIHIRO
IPC分类号： B23K11/18 , B23K20/12 , B23K103/16 , C22C47/20 , C22C1/09
摘要： PURPOSE:To provide a joint part having high joint strength by setting a material of the same kind as a metallic base as an insert material in the joint part. CONSTITUTION:The material of the same kind as the metal base 3, for example, Al alloy or the like, is previously set as the insert material 5 in the joint part 4 and thereafter, the short fiber reinforced metallic materials 1 are resistance welded or friction welded to each other at the time of resistance welding or friction welding of these materials to each other. The thickness of the insert material 5 is specified to about 0.001 to 2mm. The metallic base 3 is an Al-Zn system and the short fibers are included at 25vol.% in the metallic base. As a result, the insert material 5 is melted during joining, by which the deficiency of the molten Al alloy of the metallic base 3 near the joint part 4 is made up and the joint strength is enhanced.

5. 发明专利

JPH03151166A PLURAL ELECTRODE TYPE TIG WELDING METHOD 失效
公开(公告)号：JPH03151166A
公开(公告)日：1991-06-27
申请号：JP28915089
申请日：1989-11-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAGUCHI SEIICHI , FUJITA KEN , IKEDA TAKAO
IPC分类号： B23K9/167
摘要： PURPOSE:To perform stable welding by carrying a base current to plural electrodes which are provided surroundingly at equal intervals with respect to a welding wire and extend downward vertically and supplying a peak current pulsatively in order to the plural electrodes. CONSTITUTION:The base current to the extent to maintain arcs 5, 6 and 7 is given to the respective electrodes 1, 2 and 3 and while the peak current having size capable of welding base metal 02 and the welding wire 8 being given to the respective electrodes palsatively alternatively, the lower end of the welding wire 8 is moved along a groove, by which the wire 8 and the base metal 02 ate molten. By this method, complicated welding such as welding having high curvatare of a nonlinear groove or fillet welding of a small diameter nozzle can be performed easily and stably.

6. 发明专利

JPS61262462A METHOD FOR CONTROLLING PLASMA ARC WELDING CONDITIONS 失效
公开(公告)号：JPS61262462A
公开(公告)日：1986-11-20
申请号：JP10446285
申请日：1985-05-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIGE TAKASHI , IKEDA TAKAO
IPC分类号： B23K9/095 , B23K9/00 , B23K10/00
摘要： PURPOSE:To form a stable bead shape by detecting the gap quantity of a groove gap and adding a welding wire so as to meet the gap quantity. CONSTITUTION:A detector 4 detects the groove gap 9 ad profiles the weld line at a prescribed size pitch for the prescribed size from the welding start position. The detected position is corrected by following up with pulse motors 2a, 2b. The respective welding positions are detected and are temporarily stored by a control panel. The first weld position is read out upon starting of welding and the welding wire is fed according to the read out position; at the same time, the welding wire is automatically feed to meet the gap quantity while the previous gap quantity at the pitch of the prescribed size and the weld position are detected.

7. 发明专利

JPS6188971A Welding start and terminal processing method 失效
标题翻译：焊接开始和终端处理方法
公开(公告)号：JPS6188971A
公开(公告)日：1986-05-07
申请号：JP21165784
申请日：1984-10-09
申请人： Mitsubishi Heavy Ind Ltd
发明人： SHIGE TAKASHI , IKEDA TAKAO
IPC分类号： B23K9/02 , B23K9/12 , B23K31/00 , B23K31/06
CPC分类号： B23K9/12
摘要： PURPOSE:To prevent a welding bead from drooping by executing welding by rotating a base metal in a welding start part, and discontinuing temporarily the feed of a welding wire in a lapped part. CONSTITUTION:In a welding start part of plasma welding, a plasma arc 2 is generated by moving a base metal 3, and welding is executed by passing through the base metal 3. Subsequently, in a welding bead lap part, welding is executed by discontinuing temporarily the feed speed of a welding wire and welding a bulge part 9 of a surface bead of a start part. In a welding end part, welding is executed by making a plasma gas flow rate descend linearly. As a result, a good welding terminal part 12 having no blowhole is obtained.
摘要翻译：目的：通过在焊接起始部分中旋转贱金属进行焊接，并暂时停止研磨部件中的焊丝的进给，防止焊道下垂。构成：在等离子体焊接的焊接起始部分中，通过移动贱金属3产生等离子体弧2，并且通过贱金属3进行焊接。随后，在焊珠搭接部中，通过中断暂时焊丝的进给速度并焊接起始部分的表面珠的隆起部分9。在焊接端部，通过使等离子体气体流量线性下降来进行焊接。结果，获得了没有气孔的良好焊接端子部12。

8. 发明专利

JPS60196284A Plug welding method 失效
标题翻译：插头焊接方法
公开(公告)号：JPS60196284A
公开(公告)日：1985-10-04
申请号：JP5218584
申请日：1984-03-21
申请人： Mitsubishi Heavy Ind Ltd
发明人： KAMEI HIROMASA , IMADA TAKEHIKO , MURASE KAZUNORI , IKEDA TAKAO , FUKUNAGA YOSHIAKI
IPC分类号： B23K9/02 , B23K31/00
CPC分类号： B23K31/00
摘要： PURPOSE:To prevent lack of fusion at the restart of welding in the stage of subjecting the defective part of a weld zone to plug welding by opening a specific tapered hole to the deposited metal, inclining slightly the tip of a welding nozzle and rotating the tip thereby welding the defective part. CONSTITUTION:The shape 11 in the restart part of the deposited metal 10 formed in a welding stage is made into the tapered shape having the diameter d1 in the upper part thereof smaller than the diameter D of a repair hole and the diameter d2 in the lower part thereof smaller ahtn the diameter d1 in the stage of interrupting temporarily welding and performing welding again in order to subject the defective part of the weld zone, etc. of thick plates after removing said part by a drill of the like to plug welding. Some angle is provided to a welding tip 3 with respect to the perpendicular plane and a nozzle 2 is rotated by a rotating mechanism. The transmission of welding heat is thus made fast from right after the restart of welding and the molten pool is made uniform, by which stable penetration is obtd.
摘要翻译：目的：为了防止在焊接区的缺陷部分通过向沉积的金属开一个特定的锥孔来堵塞焊接的阶段，焊接重新开始时不会熔化，稍微倾斜焊接喷嘴的尖端并旋转尖端从而焊接缺陷部分。构成：在焊接台形成的沉积金属10的重启部分中的形状11被制成具有上部直径d1小于修理孔的直径D的锥形形状，下部的直径d2 其部分在中断暂时焊接和再次进行焊接的阶段中的直径d1较小，以便通过类似的钻头将其去除所述部件之后对厚板的焊接区等的缺陷部分进行插塞焊接。一个角度相对于垂直平面提供给焊嘴3，喷嘴2通过旋转机构旋转。焊接重新开始之后，焊接热量的传递迅速，并且使熔池均匀，从而达到稳定的穿透性。

9. 发明专利

JPS60174283A WELDING METHOD 失效
公开(公告)号：JPS60174283A
公开(公告)日：1985-09-07
申请号：JP2983384
申请日：1984-02-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAMEI HIROMASA , MURASE KAZUNORI , IKEDA TAKAO , FUKUNAGA YOSHIAKI , HASHIMOTO YOSHIO
IPC分类号： B23K9/028 , B23K9/32
摘要： PURPOSE:To prevent oxidation from arising in the part to be welded and to perform defectless welding by maintaining an inert atmosphere near the part to be welded by a shielding box. CONSTITUTION:An inert gas 22 is introduced through a gas introducing pipe 21 formed in an inert gaseous chamber 18 to maintain an inert gaseous atmosphere in a pipe hole part 11, a communicating hole 14 and a torch insertion path 17. The opening end of the path 17 of a shielding box 20 on the side to be welded is then closed by a light shielding plate 23 and a welding torch 25 is inserted into said path in such a way that the part of a tungsten electrode 24 is positioned above a tab plate 15. An arc 27 is generated between the electrode 24 and the plate 15 in an inert gaseous atmosphere while the transmission of welding heat to a pipe plate 12 is prevented by supplying a cooling liquid into a flow passage 16. A filler metal 26 is inserted into the arc 27 and the damaged part of the pipe hole part 11 is subjected to welding.

10. 发明专利

JPS5933072A Magnetically driven arc welding method 失效
标题翻译：磁力驱动电弧焊接方法
公开(公告)号：JPS5933072A
公开(公告)日：1984-02-22
申请号：JP14245482
申请日：1982-08-17
申请人： Mitsubishi Heavy Ind Ltd
发明人： NAGURA YASUMI , MURASE KAZUNORI , IKEDA TAKAO
IPC分类号： B23K9/08
CPC分类号： B23K9/08
摘要： PURPOSE:To make the starting of an arc smooth and make the traveling of the arc safe and to make weld metal sound, by improving the compsn. and ejecting direction of a shielding gas, the construction and material quality of an electrode and welding sequence. CONSTITUTION:Gaseous argon contg. oxygen is used for a shielding gas and the direction of the shielding gas is directed toward the traveling direction of an arc. Tungsten or thorium-contg. tungsten having high resistance to corrosion is coated on the arc generating region of an electrode to make the electrode exchangeable. Further the welding current is set at 3 levels in accordance with an arc starting stage, heating stage and melting stage. The excitation current is set at 2 levels in accordance with the arc starting stage and heating and melting stage.
摘要翻译：目的：通过改进电机，使电弧起弧顺利，使电弧的行驶安全，并使焊接金属发出声音。和喷射保护气体的方向，电极的结构和材料质量以及焊接顺序。构成：气态氩气氧被用作保护气体，并且保护气体的方向指向电弧的行进方向。钨或钍具有高耐腐蚀性的钨被涂覆在电极的电弧产生区上，以使电极可交换。另外根据电弧启动阶段，加热阶段和熔化阶段，将焊接电流设定在3个等级。励磁电流根据电弧启动阶段和加热熔化阶段设定在2级。

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