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1. 发明授权

US06653594B2 Consumable electrode gas shielded arc welding method and apparatus 有权
标题翻译：消耗电极气体保护电弧焊接方法及装置
公开(公告)号：US06653594B2
公开(公告)日：2003-11-25
申请号：US09793991
申请日：2001-02-28
申请人： Terumi Nakamura , Kazuo Hiraoka , Chiaki Shiga , Hideyuki Yamamoto , Koji Nakamura
发明人： Terumi Nakamura , Kazuo Hiraoka , Chiaki Shiga , Hideyuki Yamamoto , Koji Nakamura
IPC分类号： B23K9173
CPC分类号： B23K9/295
摘要： A gas having an arc current-voltage property that is different from a shielding gas is intermittently added to the shielding gas, an arc current is intermittently changed in proportion to an intermittent chemical composition change of the shielding gas at an arc generation region, and an arc generation point situated at a tip of a welding wire is displaced upwardly or downwardly along a groove of a base metal.
摘要翻译：与保护气体不同的具有电弧电流特性的气体被间歇地添加到保护气体中，电弧电流与电弧产生区域的保护气体的间歇化学组成变化成比例地间歇地变化，位于焊丝前端的电弧产生点沿着母材的沟槽向上或向下移位。

2. 发明授权

US06297473B2 Arc welding method 有权
标题翻译：电弧焊法
公开(公告)号：US06297473B2
公开(公告)日：2001-10-02
申请号：US09389619
申请日：1999-09-03
申请人： Kazuo Hiraoka , Terumi Nakamura , Hideyuki Yamamoto
发明人： Kazuo Hiraoka , Terumi Nakamura , Hideyuki Yamamoto
IPC分类号： B23K912
CPC分类号： B23K9/173
摘要： In order to provide a welding system capable of freely controlling dispersion and concentration of arc heat input at a groove face of base material, and ensure melting of the base material while restraining excessive weld heat input, in arc welding using a wire consumable electrode system, at a groove between members to be welded a position of a weld torch or feed speed of a wire is periodically varied, and welding is carried out by controlling a difference between the phase of the variation and a phase of an arc current waveform in accordance with a change in the arc current waveform.
摘要翻译：为了提供能够自由地控制在基材的槽面上的电弧热输入的分散和浓度的焊接系统，并且在抑制过多的焊接热输入的同时确保熔融基材，在使用电线消耗电极系统的电弧焊接中，在要焊接的部件之间的沟槽处，焊枪的位置或焊丝的进给速度周期性地变化，并且通过根据下述方式控制变化的相位与电弧电流波形的相位之间的差来进行焊接电弧电流波形发生变化。

3. 发明申请

US20080230526A1 Welding method and welded joint structure 审中-公开
标题翻译：焊接方法和焊接接头结构
公开(公告)号：US20080230526A1
公开(公告)日：2008-09-25
申请号：US12073630
申请日：2008-03-07
申请人： Kazuo Hiraoka , Terumi Nakamura
发明人： Kazuo Hiraoka , Terumi Nakamura
IPC分类号： B23K9/09
CPC分类号： B23K9/1012 , B23K9/0213 , B23K9/092 , Y10T403/478 , Y10T403/479
摘要： The invention provides a welding system capable of freely controlling the dispersion and concentration of arc heat over the groove face with an extremely narrow gap and a high strength and high quality welded joint structure which is formed by this welding system and which is capable of preventing softening/hardening of the structure, the lowering of the toughness thereof and the generation of a crack. According to the welding system, the melting rate of a welding wire is controlled relative to the welding wire feeding rate by changing the characteristic of an arc current so that the range of behavior and the transfer rate of the arc pole (the arc generating main point at a groove surface) are controlled. Further, the welded joint structure consists of a high strength steel having a superfine grain structure with a carbon equivalent of as low as less than 0.38 and a crystal grain size of less than 7 μm and is welded by a consumable electrode type arc welding method so as to control the arc heat distribution on the groove face of the joint.
摘要翻译：本发明提供一种焊接系统，其能够以极窄的间隙自由地控制槽面上的电弧热的分散和集中，以及由该焊接系统形成并且能够防止软化的高强度和高质量的焊接接头结构 /结构的硬化，韧性的降低和裂纹的产生。根据焊接系统，通过改变电弧电流的特性，焊丝的熔化速度相对于焊丝进给速度进行控制，使得电弧极的行为和传递速率（电弧产生主点在槽表面）被控制。此外，焊接接头结构由具有碳当量低于0.38的超细晶粒结构和小于7μm的晶粒尺寸的高强度钢构成，并且通过消耗电极型电弧焊接方法焊接以控制接头槽面上的电弧热分布。

4. 发明申请

US20050098551A1 Welding method and welded Joint structure 审中-公开
标题翻译：焊接方法和焊接接头结构
公开(公告)号：US20050098551A1
公开(公告)日：2005-05-12
申请号：US11019972
申请日：2004-12-23
申请人： Kazuo Hiraoka , Terumi Nakamura
发明人： Kazuo Hiraoka , Terumi Nakamura
IPC分类号： B23K9/02 , B23K9/10
CPC分类号： B23K9/1012 , B23K9/0213 , B23K9/092 , Y10T403/478 , Y10T403/479
摘要： The invention provides a welding system capable of freely controlling the dispersion and concentration of arc heat over the groove face with an extreamly narrow gap and a high strength and high quality welded joint structure which is formed by this welding system and which is capable of preventing softening/hardening of the structure, the lowering of the toughness thereof and the generation of a crack. According to the welding system, the melting rate of a welding wire is controlled relative to the welding wire feeding rate by changing the characteristic of an arc current so that the range of behavior and the transfer rate of the arc pole (the arc generating main point at a groove surface) are controlled. Further, the welded joint structure consists of a high strength steel having a superfine grain structure with a carbon equivalent of as low as less than 0.38 and a crystal grain size of less than 7 μm and is welded by a consumable electrode type arc welding method so as to control the arc heat distribution on the groove face of the joint.
摘要翻译：本发明提供一种焊接系统，其能够以极窄的间隙自由地控制在槽面上的电弧热的分散和集中，以及由该焊接系统形成并且能够防止软化的高强度和高质量的焊接接头结构 /结构的硬化，韧性的降低和裂纹的产生。根据焊接系统，通过改变电弧电流的特性，焊丝的熔化速度相对于焊丝进给速度进行控制，使得电弧极的行为和传递速率（电弧产生主点在槽表面）被控制。此外，焊接接头结构由具有碳当量低于0.38的超细晶粒结构和小于7μm的晶粒尺寸的高强度钢构成，并且通过消耗电极型电弧焊接方法焊接以控制接头槽面上的电弧热分布。

5. 发明申请

US20070012671A1 Welding method and welded joint structure 审中-公开
标题翻译：焊接方法和焊接接头结构
公开(公告)号：US20070012671A1
公开(公告)日：2007-01-18
申请号：US11526030
申请日：2006-09-25
申请人： Kazuo Hiraoka , Terumi Nakamura
发明人： Kazuo Hiraoka , Terumi Nakamura
IPC分类号： B23K9/09
CPC分类号： B23K9/1012 , B23K9/0213 , B23K9/092 , Y10T403/478 , Y10T403/479
摘要： The invention provides a welding system capable of freely controlling the dispersion and concentration of arc heat over the groove face with an extreamly narrow gap and a high strength and high quality welded joint structure which is formed by this welding system and which is capable of preventing softening/hardening of the structure, the lowering of the toughness thereof and the generation of a crack. According to the welding system, the melting rate of a welding wire is controlled relative to the welding wire feeding rate by changing the characteristic of an arc current so that the range of behavior and the transfer rate of the arc pole (the arc generating main point at a groove surface) are controlled. Further, the welded joint structure consists of a high strength steel having a superfine grain structure with a carbon equivalent of as low as less than 0.38 and a crystal grain size of less than 7 μm and is welded by a consumable electrode type arc welding method so as to control the arc heat distribution on the groove face of the joint.
摘要翻译：本发明提供一种焊接系统，其能够以极窄的间隙自由地控制在槽面上的电弧热的分散和集中，以及由该焊接系统形成并且能够防止软化的高强度和高质量的焊接接头结构 /结构的硬化，韧性的降低和裂纹的产生。根据焊接系统，通过改变电弧电流的特性，焊丝的熔化速度相对于焊丝进给速度进行控制，使得电弧极的行为和传递速率（电弧产生主点在槽表面）被控制。此外，焊接接头结构由具有碳当量低于0.38的超细晶粒结构和小于7μm的晶粒尺寸的高强度钢构成，并且通过消耗电极型电弧焊接方法焊接以控制接头槽面上的电弧热分布。

6. 发明申请

US20130034384A1 WELDING METHOD AND WELDED JOINT STRUCTURE 审中-公开
标题翻译：焊接方法和焊接接头结构
公开(公告)号：US20130034384A1
公开(公告)日：2013-02-07
申请号：US13566469
申请日：2012-08-03
申请人： Kazuo Hiraoka , Terumi Nakamura
发明人： Kazuo Hiraoka , Terumi Nakamura
IPC分类号： B23K9/10
CPC分类号： B23K9/1012 , B23K9/0213 , B23K9/092 , Y10T403/478 , Y10T403/479
摘要： The invention is a welding method capable of controlling an arc heat distribution on a groove face of a base metal, which comprises increasing or decreasing the melting rate of a welding wire relative to the feeding rate of the welding wire by changing the characteristic of an arc current to thereby change an arc generating position of a fusing end of the welding wire, wherein an AC arc welding operation is performed by changing the polarity of the welding wire as the characteristic of the arc current; and a welded joint structure formed by the welding method.
摘要翻译：本发明是一种能够控制贱金属槽面上的电弧热分布的焊接方法，该焊接方法包括通过改变电弧的特性来增加或降低焊丝相对于焊丝的进给速度的熔化速度电流，从而改变焊丝熔接端的电弧产生位置，其中通过改变焊丝的极性作为电弧电流的特性来执行AC电弧焊接操作; 以及通过焊接方法形成的焊接接头结构。

7. 发明申请

US20110042365A1 WELDING METHOD AND WELDING JOINT STRUCTURE 审中-公开
标题翻译：焊接方法和焊接接头结构
公开(公告)号：US20110042365A1
公开(公告)日：2011-02-24
申请号：US12905646
申请日：2010-10-15
申请人： Kazuo HIRAOKA , Terumi Nakamura
发明人： Kazuo HIRAOKA , Terumi Nakamura
IPC分类号： B23K9/09
CPC分类号： B23K9/1012 , B23K9/0213 , B23K9/092 , Y10T403/478 , Y10T403/479
摘要： The invention provides a welding system capable of freely controlling the dispersion and concentration of arc heat over the groove face with an extreamly narrow gap and a high strength and high quality welded joint structure which is formed by this welding system and which is capable of preventing softening/hardening of the structure, the lowering of the toughness thereof and the generation of a crack. According to the welding system, the melting rate of a welding wire is controlled relative to the welding wire feeding rate by changing the characteristic of an arc current so that the range of behavior and the transfer rate of the arc pole (the arc generating main point at a groove surface) are controlled. Further, the welded joint structure consists of a high strength steel having a superfine grain structure with a carbon equivalent of as low as less than 0.38 and a crystal grain size of less than 7 μm and is welded by a consumable electrode type arc welding method so as to control the arc heat distribution on the groove face of the joint.
摘要翻译：本发明提供一种焊接系统，其能够以极窄的间隙自由地控制在槽面上的电弧热的分散和集中，以及由该焊接系统形成并且能够防止软化的高强度和高质量的焊接接头结构 /结构的硬化，韧性的降低和裂纹的产生。根据焊接系统，通过改变电弧电流的特性，焊丝的熔化速度相对于焊丝进给速度进行控制，使得电弧极的行为和传递速率（电弧产生主点在槽表面）被控制。此外，焊接接头结构由具有低于0.38的碳当量和小于7μm的晶粒尺寸的超细晶粒结构的高强度钢组成，并且通过消耗电极型电弧焊接方法焊接以控制接头槽面上的电弧热分布。

8. 发明申请

US20100133240A1 Consumable Electrode-Based Gas-Shielded Arc Welding Method and Welding Torch Therefor 审中-公开
标题翻译：消耗电极式气体保护电弧焊接方法及焊接手电筒
公开(公告)号：US20100133240A1
公开(公告)日：2010-06-03
申请号：US11990185
申请日：2006-08-10
申请人： Makoto Takahashi , Toyoyuki Sato , Terumi Nakamura , Kazuo Hiraoka
发明人： Makoto Takahashi , Toyoyuki Sato , Terumi Nakamura , Kazuo Hiraoka
IPC分类号： B23K9/173 , B23K9/00
CPC分类号： B23K9/173 , B23K9/295 , B23K35/383
摘要： A method of consumable electrode type gas shield arc welding characterized in that a shield gas consisting of an inert gas is fed toward a consumable electrode and an addition gas consisting of a mixture of oxidizing gas and inert gas toward an outer edge of welding pool. Further, there is provided a welding torch for use in the method. Thus, in the welding of steel material in accordance with GMA welding technique, the dissolved oxygen concentration of the weld metal can be reduced to 100 ppm or less, and while maintaining arc stability, desirable bead formation can be attained.
摘要翻译：一种消耗电极型气体保护电弧焊接方法，其特征在于，将由惰性气体组成的保护气体朝向焊接池的外缘边缘供给消耗电极和由氧化性气体和惰性气体的混合物组成的添加气体。此外，提供了一种用于该方法的焊枪。因此，在根据GMA焊接技术的钢材的焊接中，焊接金属的溶解氧浓度可以降低到100ppm以下，并且在保持电弧稳定性的同时，可以获得所需的珠粒形成。

9. 发明申请

US20090039065A1 Welding wire and welding method 审中-公开
标题翻译：焊丝和焊接方法
公开(公告)号：US20090039065A1
公开(公告)日：2009-02-12
申请号：US11921793
申请日：2006-06-09
申请人： Terumi Nakamura , Kazuo Hiraoka
发明人： Terumi Nakamura , Kazuo Hiraoka
IPC分类号： B23K9/00 , B23K35/22
CPC分类号： B23K35/0227 , B23K35/0272 , B23K35/22 , B23K35/3066 , B23K35/3086 , B23K35/3601 , B23K35/3602 , B23K35/3603 , B23K35/3607 , B23K35/3613 , B23K35/383
摘要： A plurality of metal materials to be a composition, without containing a flux, of a required welded portion are laminated in order to improve characteristics such as toughness of the welded portion and to carry out a stable welding operation. A welding wire enclosing an alkaline metal compound is used between the layers. The welding is carried out in a high-purity inert gas atmosphere.
摘要翻译：为了提高焊接部的韧性等特性，进行稳定的焊接操作，层叠了作为不含焊剂的组成物的多种金属材料的所需焊接部。在层之间使用包围碱金属化合物的焊丝。焊接在高纯度惰性气体气氛中进行。

10. 发明授权

US08884190B2 Vertical-position welding method 有权
标题翻译：垂直位置焊接法
公开(公告)号：US08884190B2
公开(公告)日：2014-11-11
申请号：US12006897
申请日：2008-01-07
申请人： Terumi Nakamura , Noboru Kiji , Toru Iljima
发明人： Terumi Nakamura , Noboru Kiji , Toru Iljima
IPC分类号： B23K9/12 , B65H20/00 , F16F3/00 , B23K9/133 , B23K9/02
CPC分类号： B23K9/0213 , B23K9/12 , B23K9/126 , B23K9/133
摘要： A pair of thick steel plates are set up side by side such that an I groove with a narrow gap is formed between the facing edges of the plates, and a welding wire projecting from a welding torch of an arc welding unit with a constant voltage characteristic is inserted into the I groove obliquely from above with respect to the thickness direction of the plates. The welding torch is moved vertically while the distal end of the welding wire is caused to reciprocate inside the I groove in the thickness direction. At this time, the wire feed rate Vf is varied and also the extension L of the welding wire is increased or decreased so as to keep welding current Iw at a target value. Further, the wire feed rate Vf is subjected to incremental/decremental correction according to the moving direction of the torch.
摘要翻译：一对厚钢板并排设置，使得在板的相对边缘之间形成具有窄间隙的I槽，以及从具有恒定电压特性的电弧焊接单元的焊枪突出的焊丝相对于板的厚度方向从上方倾斜地插入到I槽中。焊枪的远端在厚度方向上在I槽内往复运动，使焊炬上下移动。此时，焊丝进给速度Vf变化，并且焊丝的延长线L也增大或减小，从而将焊接电流Iw保持在目标值。此外，焊丝进给速度Vf根据焊炬的移动方向进行增量/减量校正。

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