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1. 发明公开

EP1338369A1 CONSUMABLE ELECTRODE ARC WELDING METHOD AND WELDER 审中-公开
标题翻译：弧焊和与消耗电极式电弧焊接机
公开(公告)号：EP1338369A1
公开(公告)日：2003-08-27
申请号：EP01961297.7
申请日：2001-08-31
申请人： Air Water Inc. , Hitachi Construction Machinery Co., Ltd.
发明人： IKEGAMI, Yuichi , YOKOYAMA, Takashi , NAKATA, Jitsuo , MIYAUCHI, Hideki , YAMAMOTO, Hikaru , SENZAKI, Masafumi
IPC分类号： B23K9/12
CPC分类号： B23K9/188 , B23K9/0017 , B23K9/1735
摘要： It is an object of the present invention to provide, in the double wire type welding method, a consumable electrode type arc welding method and welding apparatus for which the welding speed is sufficiently increased, and in particular the melting of steel such as carbon steel is increased and hence the welding speed is increased. With the present invention, a consumable electrode wire 1 is taken as the leading wire in the direction in which welding proceeds and a filler wire 2 is taken as the trailing wire, the consumable electrode wire 1 and the filler wire 2 are arranged approximately in parallel, and earthing is carried out from a welding power source 5, via a power feeding terminal 4a, from the consumable electrode wire 1, though an arc 12 and a molten pool 8, and from a parent material 3 by a parent material side earth wire 7; by placing an electrical resistor here, the current Ib flowing into the earth terminal of the welding power source 5 via the parent material 3 can be limited by the electrical resistor 20, and the ratio of the current If that is split off into the filler wire 2 to the welding current Iw can be raised; due to the increase in the split-off current, the amount of heat generation in the filler wire 2 increases, and thus even if the feeding rate of the filler wire 2 is increased there will not be a lack of Joule heat, and hence melt mixing of the filler wire 2 into the molten pool 8 can be carried out completely.

2. 发明授权

EP1136167B1 METHOD FOR GUIDING ARC BY LASER, AND ARC GUIDING WELDING AND DEVICE BY THE METHOD 有权
标题翻译：声明由试验Light通过导弧法实施这种焊接激光焊接和设备
公开(公告)号：EP1136167B1
公开(公告)日：2004-09-01
申请号：EP00909642.1
申请日：2000-03-15
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SAKURAI, Shigeyuki , TAKANO, Yutaka , MIYANAGI, Naoki , SHIMOMURA, Yoshiaki , YAMAMOTO, Hikaru , TAKATANI, Toru
IPC分类号： B23K9/067 , B23K26/14 , B23K28/02 , B23K9/073 , B23K9/02
CPC分类号： B23K28/02 , B23K9/0675 , B23K9/073 , B23K26/1429
摘要： A plasma (13) is produced in a position where the parent metal (2) is to be welded by a laser beam (16) applied to the parent metal (2). An arc discharge (4) occurs in the direction toward the plasma (13) when the discharge electrode (12) is negative and is guided to the position where the laser beam (16) is applied. Arc electrons are produced at the point where the laser beam (16) is applied when the electrode (12) is positive, and electric discharge is caused toward the electrode (12). If the voltage applied to the electrode (12) and the parent metal (2) is an AC voltage, the polarities of the electrode (12) and the parent metal (2) alernate, causing the phenomena to alternate. If the parent metal (2) is negative, an arc discharge (4) occurs from the laser beam spot. Since the arc discharge (4) is caused from the plasma (13) produced by the laser beam (16), the arc discharge (4) is stable irrespective of the states of the parent metal (2) and electrode (12).

3. 发明公开

EP1378310A1 WELDING METHOD, WELDING DEVICE, WELDED JOINT, AND WELDED STRUCTURE 有权
标题翻译： Verfahren zum T oder Stoss Schweissen von ersten und zweiten Materialen
公开(公告)号：EP1378310A1
公开(公告)日：2004-01-07
申请号：EP02700601.4
申请日：2002-02-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TAKATANI, Toru , TAKANO, Yutaka , MIYANAGI, Naoki , YAMAMOTO, Hikaru , SAKURAI, Shigeyuki , HIRAKAWA, Manabu, c/o Hitachi Kenki Tsukubaryo
IPC分类号： B23K9/00 , B23K9/02 , B23K9/022 , B23K9/095 , B23K9/12 , B23K9/173
CPC分类号： B23K9/1735 , B23K9/022 , B23K9/025 , B23K9/0256 , B23K9/0953 , B23K9/126 , B23K33/00 , B23K33/004
摘要： A welding method is disclosed for butt welding a first base material 1 and a second base material 2 with each other. To also permit stable and efficient formation of a bead in the form of a fillet weld on a back side of a groove by conducting arc welding from the side of the groove without arranging a bead beforehand on the back side of the groove, the first member 1, on which a root face 1a and a single groove face 1b have been formed, is brought at its root face 1a into contact with a flat surface 2a of the second base material 2. A welding wire 6 is arranged facing on the groove formed by the contact between the first base material 1 and the second base material 2. The first base material 1 and the second material 2 are caused to fuse at an area of contact between them by an arc from the welding wire 6 . A melt, which has been formed by the fusion at the area of contact and the like, is forced out to the back side of the groove to form a bead B4 in the form of a fillet weld on the back side of the groove.
摘要翻译：公开了一种用于将第一基材1和第二基材2彼此对接焊接的焊接方法。为了通过从槽侧进行电弧焊接，可以预先在槽的背面预先设置胎圈，从而能够稳定有效地形成形成在槽的背面的焊脚形状的胎圈，第一部件如图1所示，在其表面1a上形成有根面1a和单个槽面1b，其根面1a与第二基材2的平坦表面2a接触。焊丝6面对形成的槽通过第一基材1和第二基材2之间的接触使第一基材1和第二材料2通过来自焊丝6的电弧而在它们之间的接触区域熔合。通过在接触区域等处的熔融形成的熔体被迫向槽的后侧移出，以在槽的背面形成为焊角形式的焊道B4。

4. 发明公开

EP1136169A1 WELDING METHOD AND WELDING DEVICE FOR NARROW GAPS 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNG ZUM ENGSPALTSCHWEISSEN
公开(公告)号：EP1136169A1
公开(公告)日：2001-09-26
申请号：EP00911432.3
申请日：2000-03-28
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TAKATANI, Toru , HAYAKAWA, Yasuo , TAKANO, Yutaka , YAMAMOTO, Hikaru
IPC分类号： B23K9/173
CPC分类号： B23K9/09 , B23K9/0213 , B23K9/092
摘要： A narrow gap welding method by which V-shaped or single-bevel grooved multi-layer build-up welding is carried out, comprises the steps of welding a first layer by applying a welding current by which a globule transfer pattern is made into a spray pattern by a waveform in which a direct current and a pulse current are caused to overlap, and thereafter welding the second layer by applying a direct current.
摘要翻译：进行V形或单斜面开槽多层堆焊的窄间隙焊接方法包括以下步骤：通过施加焊接电流来焊接第一层，通过该焊接电流将球形转移图案制成喷雾通过使直流电流和脉冲电流重叠的波形，然后通过施加直流电流来焊接第二层的图案。

5. 发明公开

EP2444606A1 EXHAUST GAS TREATMENT DEVICE FOR DIESEL ENGINE 审中-公开
标题翻译：爱尔兰啤酒厂VERRICHTUNGFÜREINEN柴油发电机
公开(公告)号：EP2444606A1
公开(公告)日：2012-04-25
申请号：EP10789501.3
申请日：2010-06-16
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： MINAMI, Wataru , YAMAMOTO, Hikaru
IPC分类号： F01N3/02 , B01D39/20 , B01D53/94 , F01N3/10 , F01N3/24 , F01N3/28 , B01D46/42 , B01J23/46
CPC分类号： F01N3/027 , B01D53/9418 , B01D53/9477 , B01D2251/204 , B01D2251/208 , B01D2255/1025 , B01D2255/1028 , B01D2258/012 , F01N3/0212 , F01N3/0214 , F01N3/032 , F01N3/2066 , F01N13/009 , F01N13/017 , F01N2330/10 , F01N2590/08 , F01N2610/03 , Y02T10/24
摘要： An apparatus for treating Diesel engine exhaust gas includes a filter unit which is located in the upstream side of a flow passage in a Diesel engine exhaust duct, the filter unit being composed of a plural number of filter chambers which are thermally insulated from each other and selectively opened for admission of the exhaust gas. Located in the downstream side is a nitrogen oxide treatment section to induce reactions between nitrogen oxides and reductant gas components of the exhaust gas. The exhaust gas is admitted into one of the filter chambers in one time period to trap particulate material on a filter in a filter chamber while letting reductant gas components of the exhaust gas pass through toward the nitrogen oxide treatment section which is located in the downstream side. In the nitrogen oxide treatment section, reducing reactions are induced between nitrogen oxides and reductant gas components of the exhaust gas in the presence of a nitrogen oxide reduction catalyst. Concurrently, in a filter chamber which is disconnected from an exhaust gas inlet passage, a heater is turned on to burn off particulate matter trapped on a filter in a filter chamber.
摘要翻译：一种用于处理柴油发动机废气的设备包括位于柴油发动机排气管道中的流动通道的上游侧的过滤器单元，该过滤单元由多个彼此绝热的过滤室组成，选择性地打开以排放废气。位于下游侧的是氮氧化物处理部，用于引起废气的氮氧化物和还原剂气体成分之间的反应。排气在一段时间内进入一个过滤室中，以将颗粒物质捕集在过滤室中的过滤器上，同时使废气的还原气体成分通向位于下游侧的氮氧化物处理区。在氮氧化物处理部中，在氮氧化物还原催化剂的存在下，在废气的氮氧化物和还原剂气体成分之间引起还原反应。同时，在与排气入口通道断开的过滤室中，加热器被打开以烧掉过滤室中的过滤器上的颗粒物质。

6. 发明授权

EP1378310B1 Method of T or butt welding of first and second base materials 有权
标题翻译：第一和第二材料的T或对焊的方法
公开(公告)号：EP1378310B1
公开(公告)日：2011-08-24
申请号：EP02700601.4
申请日：2002-02-18
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： TAKATANI, Toru , TAKANO, Yutaka , MIYANAGI, Naoki , YAMAMOTO, Hikaru , SAKURAI, Shigeyuki , HIRAKAWA, Manabu
IPC分类号： B23K9/00 , B23K9/02 , B23K9/022 , B23K9/095 , B23K9/12 , B23K9/173
CPC分类号： B23K9/1735 , B23K9/022 , B23K9/025 , B23K9/0256 , B23K9/0953 , B23K9/126 , B23K33/00 , B23K33/004
摘要： A welding method for butt-welding a first base material (1) and a second base material (2) in order to make it possible to stably and efficiently form a fillet weld-shaped bead also on the back side of a groove by arc welding from the groove side without providing a bead on the back side of the groove in advance, comprising the steps of abutting, against the root face (1a) of a first member (1) formed with a root face (1a) and a one-side grooved surface (1b), the flat surface (2a) of the second base material (2), facing a welding wire (6) with a groove formed by abutment between the first and second base materials (1, 2), melting the abutted portions, etc. of the first and second base materials (1, 2) by the arc of the welding wire (6), extruding the melt formed by the welding of the abutted portions, etc. to the back side of the groove so as to form a fillet weld-shaped bead (B4).

7. 发明公开

EP2199003A1 WELDING METHOD FOR T-JOINT 审中-公开
标题翻译：焊T型接头
公开(公告)号：EP2199003A1
公开(公告)日：2010-06-23
申请号：EP08837732.0
申请日：2008-09-26
申请人： Hitachi Construction Machinery Co., Ltd
发明人： NAKAJIMA, Toru , YAMAMOTO, Hikaru
IPC分类号： B23K9/02 , B23K9/095
CPC分类号： B23K9/025
摘要： In a plate assembling step, a gap (5) is formed between a leading end portion (3A) of a groove (3) provided on an upright plate (2) and a lower plate (1). In this state, in a first welding step, an arc is generated from a welding wire (7) toward a back surface (3C) side of the groove (3) through the gap (5), to form a satisfactory penetration bead (8) on the back surface (3C) side of the groove (3). Next, in a second welding step, the welding wire (7), the lower plate (1), the groove (3) of the upright plate (2) and the penetration bead (8) are fused to form a first-layer welding bead (9), thereby firmly joining the lower plate (1) and the groove (3) of the upright plate (2). In this case, since the first welding step and the second welding step can be performed continuously after performing the plate assembling step, it is possible to enhance workability at the time of welding the lower plate (1) and the upright plate (2).

8. 发明公开

EP1136167A1 METHOD FOR GUIDING ARC BY LASER, AND ARC GUIDING WELDING AND DEVICE BY THE METHOD 有权
标题翻译：声明由试验Light通过导弧法实施这种焊接激光焊接和设备
公开(公告)号：EP1136167A1
公开(公告)日：2001-09-26
申请号：EP00909642.1
申请日：2000-03-15
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SAKURAI, Shigeyuki , TAKANO, Yutaka , MIYANAGI, Naoki , SHIMOMURA, Yoshiaki , YAMAMOTO, Hikaru , TAKATANI, Toru
IPC分类号： B23K9/067
CPC分类号： B23K28/02 , B23K9/0675 , B23K9/073 , B23K26/1429
摘要： A plasma (13) is generated at a welding intended position on a base material (2) by a laser (16) irradiated to the base material (2). When a discharge electrode (12) is at a minus potential, an arc discharge (4) takes place in the direction of the plasma (13) and is induced at a position irradiated with the laser (16). When the electrode (12) is at a plus potential, arc electrons are generated from a laser irradiated point and discharges to the electrode (12). When a voltage applied between the electrode (12) and the base material (2) is alternating, the polarities of the electrode (12) and the base material (2) alternately change so that the foregoing phenomena alternately occur. When the base material (2) is at a minus potential, an arc discharge (4) takes place from a laser spot. Also, in regard to the arc discharge (4), since the plasma (13) is generated by the laser (16), the stable arc discharge (4) can be generated irrespective of the state of the base material (2) or the state of the electrode (12).
摘要翻译：一种等离子（13），在通过激光（16）在基体材料（2）的焊接预定的位置，产生照射到基体材料（2）。当放电电极（12）处于负电位到电弧放电（4）发生在等离子体（13）的方向，并在与所述激光（16）照射的位置被诱导。当电极（12）处于正电位，由激光照射点并排出到电极（12）产生的电弧的电子。当一个电压电极（12）和（2）被交替基材之间时，该电极（12）和基体材料的极性（2）可替换地改变，因此没有上述现象可替换地好发。当基体材料（2）是在负电位到电弧放电（4）从激光点发生。所以，在考虑到电弧放电（4），由于等离子体（13）是由激光器（16），（4）可以不考虑基体材料的状态而产生的稳定的电弧放电产生的（2）或所述电极（12）的状态。

9. 发明公开

EP2700752A1 BOOM FOR CONSTRUCTION MACHINE 审中-公开
标题翻译： AUSLEGERFÜREINE BAUMASCHINE
公开(公告)号：EP2700752A1
公开(公告)日：2014-02-26
申请号：EP11863797.4
申请日：2011-04-20
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： TAKAHASHI, Takeshi , HAMADA, Atsushi , SHIMODAIRA, Takayuki , YAMAMOTO, Hikaru , SUGAYA, Makoto
IPC分类号： E02F3/38
CPC分类号： E02F3/38
摘要： In left and right web plates (12) of a boom (11), first to fifth web materials (12A to 12E) are joined at edge portions in a front-rear direction along welding lines (13A to 13D) . In an upper flange plate (14), a rear upper flange material (14A), a front upper flange material (14B), and a middle upper flange material (14C) are joined at edge portions in a front-rear direction along welding lines (15A, 15B) . In a lower flange plate (16), first to sixth lower flange materials (16A to 16F) are joined at edge portions in a front-rear direction along welding lines (17A to 17E) . The welding lines (13A to 13D) of the left and right web plates (12) are disposed in positions that are different from those of the welding lines (15A, 15B) of the upper flange plate (14) and the welding lines (17A to 17E) of the lower flange plate (16) in a front-rear direction. This makes it possible to reduce the entire weight and thereby achieve reduction in weight while ensuring bending strength, torsional strength, and the like of the boom (11).
摘要翻译：在动臂（11）的左右腹板（12）中，第一至第五腹板材料（12A至12E）沿着沿着焊接线（13A至13D）的前后方向的边缘部分接合。在上法兰板（14）中，沿着焊接线的前后方向的边缘部分接合有后上凸缘材料（14A），前上凸缘材料（14B）和中上凸缘材料（14C）（15A，15B）。在下凸缘板16中，沿着焊接线（17A〜17E）沿前后方向的边缘部分接合第一至第六下部凸缘材料（16A至16F）。左和右腹板（12）的焊接线（13A〜13D）设置在与上凸缘板（14）和焊接线（17A）的焊接线（15A，15B）不同的位置至17E）的前后方向。由此，能够确保起重臂（11）的弯曲强度，扭转强度等，能够减轻整体重量，从而实现重量的减轻。

10. 发明公开

EP1354660A1 FRICTION JOINING METHOD AND FRICTION JOINED BODY 审中-公开
标题翻译：方法参加由摩擦和摩擦根深蒂固主题的一种手段
公开(公告)号：EP1354660A1
公开(公告)日：2003-10-22
申请号：EP01273489.3
申请日：2001-12-14
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： MIYANAGI, Naoki , TAKANO, Yutaka , YAMAMOTO, Hikaru , TAKATANI, Toru , HIRAKAWA, Manabu , SHINODA, Takeshi
IPC分类号： B23K20/12
CPC分类号： B23K20/129 , B23K20/12 , B23K20/1205 , B23K20/1215
摘要： Plate parts (1, 2) to be joined are formed with flat meeting surfaces (1A, 2A) and beveled surfaces (1B, 2B) at the respective joining ends, and fixed in a welding position with the flat meeting surfaces (1A, 2A) in abutting engagement with each other. In this state, a cladding material (4) is pressed against a groove (3) between the two plate parts (1, 2) and at the same time put in high speed rotation. Heat of high temperature is generated by friction between contacting surfaces of the plate parts (1, 2) and the cladding material (4). As the cladding material (4) is moved along the meeting surfaces (1A, 2A), part of plasticized cladding material at the lower end of the cladding material (4) is left and deposited on the front side of the groove (3), contributing to increase the cladding volume of a weld portion (5) on the front side of the groove (3) and to enhance the strength of bondage between the two plate parts (1, 2).
摘要翻译：板部件（1,2）将被接合与平坦会议表面（1A，2A），并且在respectivement接合端部倾斜表面（1B，2B）上形成，并固定在焊接位置与平坦会议表面（1A，2A ）在海誓山盟邻接接合。在这种状态下，包层材料（4）压靠于两个板状部件之间的凹槽（3）（1，2），并在同一时间投入高速旋转。通过摩擦板部件（1，2）和包层材料（4）的接触面之间产生的高温的热。作为包覆材料（4）沿所述会议表面（1A，2A）在包覆材料的下端塑化包层材料，部分移动（4）是左和沉积在槽的前侧（3）有助于提高在槽（3）的前侧的包层焊接部分（5）的体积并且增强所述两个板部件之间的束缚的强度（1，2）。

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