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21. 发明专利

JPS6138780A Magnetic stirring and welding device 失效
标题翻译：磁力搅拌和焊接设备
公开(公告)号：JPS6138780A
公开(公告)日：1986-02-24
申请号：JP16092184
申请日：1984-07-31
申请人： Mitsubishi Heavy Ind Ltd
发明人： TSUJI KURETAKA , TODA OSAMU , BEPPU SEIJI , TADA YOSHIHIRO , NAGURA YASUMI , IMADA TAKEHIKO , NISHIKAWA YOSHIHISA , FUKUNAGA YOSHIAKI , MASAKI TSUTOMU
IPC分类号： B23K9/08
CPC分类号： B23K9/08
摘要： PURPOSE:To improve the quality of a welding joint by providing an electromagnetic coil opposed to a welding torch by placing a groove between them, and also providing a hollow iron core for jetting a back shield gas, on the center of its coil. CONSTITUTION:An electromagnetic coil 19 opposed to a welding torch 18 is placed by placing a welding groove 13 between them. A hollow iron core 22 passing through the center part of the electromagnetic coil 19 is provided, and from its tip, a back shield gas such as argon, etc. is jetted to the rear side of the groove 13. Also, from many holes of the iron core 22, a shield gas is blown to the electromagnetic coil 19. By this mechanism, a molten pool is stirred by a large electromagnetic force, and also the electromagnetic coil 19 is cooled. Moreover, since the back shield gas covers the rear side of the groove 13, the quality of a welding joint is improved.
摘要翻译：目的：为了提高焊接质量，通过在它们之间放置一个槽，提供与焊炬对置的电磁线圈，并且在其线圈的中心还提供用于喷射背面保护气体的中空铁芯。构成：通过在它们之间放置焊接槽13来放置与焊炬18相对的电磁线圈19。设置穿过电磁线圈19的中心部分的中空铁芯22，并且从其尖端将诸如氩等的背面保护气体喷射到槽13的后侧。另外，从多个孔铁芯22将屏蔽气体吹送到电磁线圈19.通过该机构，通过大的电磁力搅拌熔池，并且电磁线圈19也被冷却。此外，由于后挡板气体覆盖槽13的后侧，所以提高了焊接接头的质量。

22. 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。

23. 发明专利

JPS60145275A ROOT PASS METHOD 失效
公开(公告)号：JPS60145275A
公开(公告)日：1985-07-31
申请号：JP69084
申请日：1984-01-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAMEI HIROMASA , IMADA TAKEHIKO , NISHIKAWA YOSHIHISA , FUKUNAGA YOSHIAKI , MASAKI TSUTOMU , ISHIDE TAKASHI
IPC分类号： B23K9/173 , B23K9/02 , B23K9/022 , B23K9/16
摘要： PURPOSE:To perform satisfactory root pass of a consumable electrode type gas shielded arc welding by welding the wide angle side of a groove by a high current spray arc and a narrow angle side by a low current short arc respectively and moving circularly the arcs in the weld line direction. CONSTITUTION:A high current spray arc 12 and a low current short arc 11 are continuously and alternately changed over and are circularly moved in the welding direction so that the wide angle side of the groove 23 of materials 21, 22 to be welded is welded by the arc 12 to form the 1st weld metal 32 and the narrow angle side is welded by the arc 11 to form the 2nd weld metal 33 in each unit circular movement to perform satisfactory root pass in the stage of performing butt welding between the materials 21 and 22 by consumable electrode type gas shielded arc welding. Formation of satisfactory penetration beads is made possible by changing the ratio between the low current region theta1 and high current region theta2 in the above-mentioned unit circular movement according to the varying size of the gap 24 of the groove 23.

24. 发明专利

JPS5948708B2 JPS5948708B2 - 失效
公开(公告)号：JPS5948708B2
公开(公告)日：1984-11-28
申请号：JP16566579
申请日：1979-12-21
申请人： Mitsubishi Heavy Ind Ltd
发明人： KAMEI HIROMASA , IMADA TAKEHIKO , FUKUNAGA YOSHIAKI , TAKANO GENTA , MISHIMA TAKEKATSU , NISHIKAWA YOSHIHISA , TOYOHARA TSUTOMU
IPC分类号： B23K9/127 , B23K9/00 , B23K9/028 , B23K9/032 , B23K9/12

25. 发明专利

JPS57209774A METHOD AND DEVICE FOR NARROW GROOVE ARC WELDING 失效
公开(公告)号：JPS57209774A
公开(公告)日：1982-12-23
申请号：JP9324181
申请日：1981-06-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： SATOU SHIYOUZOU , SHIMOYAMA JINICHI , SHIYOUNO SUSUMU , MATSUMOTO TAKERU , KAMEI HIROMASA , IMADA TAKEHIKO
IPC分类号： B23K9/16 , B23K9/02 , B23K9/12 , B23K9/173 , B23K9/30
摘要： PURPOSE:To prevent the generation of unwelded parts by deforming a welding wire plastically to a wave shape at prescribed pitches and forming widths by means of a pair of forming gears, and supplying such wire to the welding zones so that the leading end of the wire faces the sides of a pair of materials to be welded, alternately. CONSTITUTION:A linear welding wire 16 from a coil is supplied through a guiding means 23 into between forming gears 17a and 17b. The wire 16 is deformed plastically to a curved welding wire 16' and is fed into an upper guiding cylinder 32 by means of the gears 17a, 17b which are driven to revolve. The wire 16' out through the cylinder 32 enters a lower guiding cylinder 39, and is conducted with electricity from an electricity conducting tip 42 at the leading end of said cylinder, by which the arc is generated between the wire and materials 1 to be welded and the wire is deposited on a narrow groove part 2. The wire 16 is fed at the speed equal to the rate of consumption of the wire 16'. A pair of the materials 1 to be welded are successively welded via a deposited part 63.

26. 发明专利

JPS57181763A VERTICAL NARROW GROOVE MAG WELDING METHOD FOR SHORT SIZE 失效
公开(公告)号：JPS57181763A
公开(公告)日：1982-11-09
申请号：JP6628281
申请日：1981-04-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： MATSUMOTO TAKERU , KAMEI HIROMASA , IMADA TAKEHIKO , TAKANO GENTA , OGAWA YOSHIICHI
IPC分类号： B23K9/00 , B23K9/12 , B23K9/16 , B23K9/173
摘要： PURPOSE:To make automatic welding possible and to improve workability and efficiency considerably by curving a welding wire to prescribed pitchs, and oscillating a welding nozzle back and forth thereby performing welding. CONSTITUTION:A welding wire 21b is fed while it is curved at a constant pitch and curved width by gears 25a, 25b. The welding arc 26 moves from diagonal below on the right to diagonal below on the left. A molten pool 27 is moved by the arc force thereof and both walls of the groove are melted by melting heat. At this time, the leading end of a welding nozzle 20 is moved by high speed oscillation in the pool 27, and is advanced in the thickness direction. At both ends is advanced in the thickness direction. At both ends of the plate, the nozzle is moved back and forth while some stop time is held. The nozzle 20 is moved upward at a prescribed pitch at every one reciprocation in the thickness direction, whereby the inside of the groove clearance is welded successively from below to above. A strap plate 10 makes the arc 26 U-turn therefrom to form reinforcement of weld beads and a shielding gas is injected through small holes 10b so as to be packed over the entire part of the inside surfaces of the groove in the thickness direction.

27. 发明专利

JPS57159290A METHOD FOR AUTOMATIC WELDING BETWEEN TUBE PANEL AND HEADER 失效
公开(公告)号：JPS57159290A
公开(公告)日：1982-10-01
申请号：JP4576781
申请日：1981-03-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAGATA JIYUNICHI , SHIMOYAMA HIROSHI , IMADA TAKEHIKO , SENNAMI KENICHI
IPC分类号： B23K9/00
摘要： PURPOSE:To weld automatically a tube panel and a header well uniformly without joints continuously, by arranging automatic welding torches in both sides of the tube panel, which has both ends matched to headers and is stood, and welding the welding part throughout the circumference by welding arc generated alternately. CONSTITUTION:Both ends of a tube panel 3 are matched to headers 4, and the tube panel 3 is stood vertically, and automatic welding devices 5 are arranged in both sides of the panel 3. Under this state, welding parts between tubes 1 and both cylinders of headers 4 are welded by bipolar automatic welding torches 6L and 6R provided in devices 5. That is, welding arcs are generated in torches 6L and 6R alternately through a changeover switch 8 by the same welding power source 7, and these torches 6L and 6R are rotated continuously for every half circumference on both sides of the panel 3 in the relay system. Thus, the welding part between the tube 1 and the head 3 is welded throughout the circumference.

28. 发明专利

JPS5689380A AUTOMATIC VERTICAL CIRCUMFERENTIAL WELDING EQUIPMENT 失效
公开(公告)号：JPS5689380A
公开(公告)日：1981-07-20
申请号：JP16566579
申请日：1979-12-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAMEI HIROMASA , IMADA TAKEHIKO , FUKUNAGA YOSHIAKI , TAKANO GENTA , MISHIMA TAKEKATSU , NISHIKAWA YOSHIHISA , TOYOHARA TSUTOMU
IPC分类号： B23K9/127 , B23K9/00 , B23K9/028 , B23K9/032 , B23K9/12
摘要： PURPOSE:To automatically weld a circular metal fitting to a large cylindrical vessel having annular reinforcing ribs in a vertical position by vertically moving a welding torch along the work by means of a noncontact sensor. CONSTITUTION:A vertical position adjusting slide 19 is vertically moved to position a welding torch to just before the metal fitting 3 to be welded, and an angle adjusting plate 20 is slewed and is fixed to the slide 19 at such an angle at which the torch 4 is positioned perpendicularly to the fitting 3. Next, the torch 4 is aligned to a groove A and a noncontact sensor 40 is set at a distance at which it operates on the outside surface of the fitting 3 near the groove A. A torch rotating motor 36 is operated to rotate the torch 4 and the sensor 40 around the fitting 3. Then, a servo motor 39 repeats forward and backward runs to slide an outer slide cylinder 35 so as to maintain the spacing between the sensor 40 and the fitting 3 constant, thereby causing the torch 4 to trace the saddle type groove A. This causes the welding to progress automatically.

29. 发明专利

JPH11197887A BACKING MATERIAL FOR ONE SIDE WELDING 失效
公开(公告)号：JPH11197887A
公开(公告)日：1999-07-27
申请号：JP923298
申请日：1998-01-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： NAJIMA KENJI , OSAKI MASARU , IMADA TAKEHIKO , TOYOHARA TSUTOMU , OTA MASAHIRO , ATSUMI MAKIO
IPC分类号： B23K37/06
摘要： PROBLEM TO BE SOLVED: To greatly reduce generation of a thermal decomposition organic gas having irritating odor, even under a high temperature exposure in a state of oxygen shortage at the time of welding, to substantially suppress degradation of working environment, and to sharply curtail generation of soot containing tar component with carbon as the base. SOLUTION: A main backing material, which is the lamination of a cushioning material 1 for buffering impact like a corrugated cardboard, a heat insulating material 2 like rock wool, flux 3, and a glass fiber woven cloth 4 for forming a back bead, is covered with a wrapping cloth 5 whose main material is a non-organic fiber cloth such as glass fiber and carbon fiber, with a pressure sensitive adhesive double coated tape 6 provided on the wrapping cloth 5, a tape for which a base material having a non organic fiber like glass or carbon fiber as the main material is coated with an adhesive layer having a silicone adhesive as the main component. As a result, in the case of high-temperature exposure in a state of oxygen shortage at the time of welding, the device greatly reduces generation of a thermal decomposition organic gas having an irritating odor, substantially curtailing generation of soot containing tar component with carbon as the base, thereby facilitating a soot removing operation accompanying the sticking of soot to a steel plate or the like.

30. 发明专利

JPH04288971A NARROW GROOVE WELDING METHOD 失效
公开(公告)号：JPH04288971A
公开(公告)日：1992-10-14
申请号：JP5454491
申请日：1991-03-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAMEI HIROMASA , IMADA TAKEHIKO , FUKUNAGA YOSHIAKI
IPC分类号： B23K9/173 , B23K9/32
摘要： PURPOSE:To obtain the deposition part having no welding defect by realizing one layer two pass welding in the case of welding of a narrow groove. CONSTITUTION:At the time of executing arc welding by leading a wire 3a which passes through a wire guide base 23 and is formed in a chevron shape by bend forming/feeding gears 13, 14, to a narrow groove 1, the wire is allowed to have directivity by shaking the wire guide base 23 to the left and the right and allowing the wire 3a to have a bend habit. Accordingly, an arc is generated between the front bead 8 and one groove wall 1a, and welding of one layer two pass is executed.

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