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公开(公告)号：US08962149B2
公开(公告)日：2015-02-24
申请号：US13390493
申请日：2010-08-30
申请人： Hatsuhiko Oikawa , Hideki Hamatani , Masafumi Azuma , Noriyuki Suzuki , Fuminori Watanabe , Naoki Maruyama , Hiroyuki Kawata
发明人： Hatsuhiko Oikawa , Hideki Hamatani , Masafumi Azuma , Noriyuki Suzuki , Fuminori Watanabe , Naoki Maruyama , Hiroyuki Kawata
IPC分类号： B32B15/01 , B32B15/04 , B32B15/18 , B23K11/11 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , B23K11/16
CPC分类号： B23K11/115 , B23K11/16 , B23K11/166 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B32B15/011 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , Y10T428/12347 , Y10T428/12965
摘要： Provided is a spot welded joint (10) which includes at least one thin steel plate with a tensile strength of 750 MPa to 1850 MPa and a carbon equivalent Ceq of equal to or more than 0.22 mass % to 0.55 mass % and in which a nugget (3) is formed in an interface of the thin steel plates (1A, 1B). In a nugget outer layer zone, a microstructure consists of a dendrite structure in which an average value of arm intervals is equal to or less than 12 μm, an average grain diameter of carbides contained in the microstructure is 5 nm to 100 nm, and a number density of carbides is equal to or more than 2×106/mm2.
摘要翻译： 提供了一种点焊接头（10），其包括至少一个拉伸强度为750MPa至1850MPa的薄钢板和等于或大于0.22质量％至0.55质量％的碳当量Ceq，并且其中熔核 （3）形成在薄钢板（1A，1B）的界面中。 在熔核外层区域中，微观组织由臂间隔的平均值等于或小于12μm的枝晶结构构成，微观结构中所含的碳化物的平均粒径为5nm〜100nm， 碳化物的数密度等于或大于2×10 6 / mm 2。
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公开(公告)号：US20120141829A1
公开(公告)日：2012-06-07
申请号：US13390493
申请日：2010-08-30
申请人： Hatsuhiko Oikawa , Hideki Hamatani , Masafumi Azuma , Noriyuki Suzuki , Fuminori Watanabe , Naoki Maruyama , Hiroyuki Kawata
发明人： Hatsuhiko Oikawa , Hideki Hamatani , Masafumi Azuma , Noriyuki Suzuki , Fuminori Watanabe , Naoki Maruyama , Hiroyuki Kawata
CPC分类号： B23K11/115 , B23K11/16 , B23K11/166 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B32B15/011 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , Y10T428/12347 , Y10T428/12965
摘要： Provided is a spot welded joint (10) which includes at least one thin steel plate with a tensile strength of 750 MPa to 1850 MPa and a carbon equivalent Ceq of equal to or more than 0.22 mass % to 0.55 mass % and in which a nugget (3) is formed in an interface of the thin steel plates (1A, 1B). In a nugget outer layer zone, a microstructure consists of a dendrite structure in which an average value of arm intervals is equal to or less than 12 μm, an average grain diameter of carbides contained in the microstructure is 5 nm to 100 nm, and a number density of carbides is equal to or more than 2×106/mm2.
摘要翻译： 提供了一种点焊接头（10），其包括至少一个拉伸强度为750MPa至1850MPa的薄钢板和等于或大于0.22质量％至0.55质量％的碳当量Ceq，并且其中熔核 （3）形成在薄钢板（1A，1B）的界面中。 在熔核外层区域中，微观组织由臂间隔的平均值等于或小于12μm的枝晶结构构成，微观结构中所含的碳化物的平均粒径为5nm〜100nm， 碳化物的数密度等于或大于2×10 6 / mm 2。
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公开(公告)号：US20130319979A1
公开(公告)日：2013-12-05
申请号：US13984414
申请日：2011-02-25
申请人： Hideki Hamatani , Sunao Takeuchi , Fuminori Watanabe , Tetsuro Nose , Oleg Pavlovich Solonenko , Andrey Vladimirovich Smirnov
发明人： Hideki Hamatani , Sunao Takeuchi , Fuminori Watanabe , Tetsuro Nose , Oleg Pavlovich Solonenko , Andrey Vladimirovich Smirnov
IPC分类号： H05H1/02
CPC分类号： H05H1/02 , H05H1/34 , H05H2001/3426 , H05H2001/3452 , H05H2001/3478 , H05H2001/3484
摘要： A plasma torch comprises a cascade between a cathode and an anode. The cascade is an inter-electrode insert. An interior of the cascade is shaped so that a diameter of the interior expands in series in a plurality of steps from a side of the cathode to a side of the anode. As a result of the cascade being provided, the output power of the plasma torch is obtained not by an increase in the electric current but by an increase in the arc electric voltage. Therefore, the lifespan of each of the electrodes, i.e., the cathode and the anode, becomes remarkably longer. In addition, since a quasi laminar flow of the plasma is generated in the interior of the cascade, a fluctuation in the output power of the plasma jet is reduced. Thus, it is possible to lower the driving and operating costs. Therefore, it is possible to perform surface treatment such as plasma spraying, utilizing a high-performance plasma processing, a processing of refractory powder materials, and plasma chemistry processing and the like, with a high degree of efficiency. In addition, a side shield module is provided at an outlet side of the anode of the forming nozzle. The side shield module generates a gas shield jet which is coaxial, annular, and low-velocity. Thus, gas from the surrounding environment is prevented from flowing in. Consequently, oxygen is prevented from entering the forming nozzle and the plasma jet. Hence, it is possible to generate a plasma jet having a low Reynolds number of the plasma forming gas, with a quasi laminar flow, exhibiting low noise, the diameter of its cross section expanding in a stable manner, having a long plasma length, and comprising argon, nitrogen, and hydrogen.
摘要翻译： 等离子体焰炬包括阴极和阳极之间的级联。 级联是电极间插入物。 级联的内部成形为使得内部的直径从阴极的侧面到阳极的侧面以多个步骤串联膨胀。 作为提供级联的结果，不是通过电流的增加而是通过电弧电压的增加来获得等离子体焰炬的输出功率。 因此，每个电极即阴极和阳极的寿命变得非常长。 此外，由于在级联内部产生等离子体的准层流，所以等离子体射流的输出功率的波动减小。 因此，可以降低驾驶和操作成本。 因此，可以高效率地进行等离子体喷涂，利用高性能的等离子体处理，耐火材料的处理和等离子体化学处理等的表面处理。 另外，在成形喷嘴的阳极的出口侧设置有侧屏蔽模块。 侧屏蔽模块产生同轴，环形和低速的气体屏蔽射流。 因此，防止来自周围环境的气体流入。因此，防止氧气进入成形喷嘴和等离子体射流。 因此，可以产生具有等离子体形成气体的低雷诺数的等离子体射流，具有准层流，表现出低噪声，其横截面的直径以稳定的方式膨胀，具有长的等离子体长度，以及 包括氩，氮和氢。
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公开(公告)号：US09226378B2
公开(公告)日：2015-12-29
申请号：US13984414
申请日：2011-02-25
申请人： Hideki Hamatani , Sunao Takeuchi , Fuminori Watanabe , Tetsuro Nose , Oleg Pavlovich Solonenko , Andrey Vladimirovich Smirnov
发明人： Hideki Hamatani , Sunao Takeuchi , Fuminori Watanabe , Tetsuro Nose , Oleg Pavlovich Solonenko , Andrey Vladimirovich Smirnov
CPC分类号： H05H1/02 , H05H1/34 , H05H2001/3426 , H05H2001/3452 , H05H2001/3478 , H05H2001/3484
摘要： A plasma torch comprises a cascade between a cathode and an anode. The cascade is an inter-electrode insert. An interior of the cascade is shaped so that a diameter of the interior expands in series in a plurality of steps from a side of the cathode to a side of the anode. As a result of the cascade being provided, the output power of the plasma torch is obtained not by an increase in the electric current but by an increase in the arc electric voltage. Therefore, the lifespan of each of the electrodes, i.e., the cathode and the anode, becomes remarkably longer. In addition, since a quasi laminar flow of the plasma is generated in the interior of the cascade, a fluctuation in the output power of the plasma jet is reduced. Thus, it is possible to lower the driving and operating costs. Therefore, it is possible to perform surface treatment such as plasma spraying, utilizing a high-performance plasma processing, a processing of refractory powder materials, and plasma chemistry processing and the like, with a high degree of efficiency. In addition, a side shield module is provided at an outlet side of the anode of the forming nozzle. The side shield module generates a gas shield jet which is coaxial, annular, and low-velocity. Thus, gas from the surrounding environment is prevented from flowing in. Consequently, oxygen is prevented from entering the forming nozzle and the plasma jet. Hence, it is possible to generate a plasma jet having a low Reynolds number of the plasma forming gas, with a quasi laminar flow, exhibiting low noise, the diameter of its cross section expanding in a stable manner, having a long plasma length, and comprising argon, nitrogen, and hydrogen.
摘要翻译： 等离子体焰炬包括阴极和阳极之间的级联。 级联是电极间插入物。 级联的内部成形为使得内部的直径从阴极的侧面到阳极的侧面以多个步骤串联膨胀。 作为提供级联的结果，不是通过电流的增加而是通过电弧电压的增加来获得等离子体焰炬的输出功率。 因此，每个电极即阴极和阳极的寿命变得非常长。 此外，由于在级联内部产生等离子体的准层流，所以等离子体射流的输出功率的波动减小。 因此，可以降低驾驶和操作成本。 因此，可以高效率地进行等离子体喷涂，利用高性能的等离子体处理，耐火材料的处理和等离子体化学处理等的表面处理。 另外，在成形喷嘴的阳极的出口侧设置有侧屏蔽模块。 侧屏蔽模块产生同轴，环形和低速的气体屏蔽射流。 因此，防止来自周围环境的气体流入。因此，防止氧气进入成形喷嘴和等离子体射流。 因此，可以产生具有等离子体形成气体的低雷诺数的等离子体射流，具有准层流，表现出低噪声，其横截面的直径以稳定的方式膨胀，具有长的等离子体长度，以及 包括氩，氮和氢。
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5.发明申请公开(公告)号：US20120325805A1
公开(公告)日：2012-12-27
申请号：US13581488
申请日：2011-03-22
申请人： Noboru Hasegawa , Hideki Hamatani , Takao Miura , Kunihiko Hatabara , Nobuo Mizuhashi , Kazuto Yamamoto
发明人： Noboru Hasegawa , Hideki Hamatani , Takao Miura , Kunihiko Hatabara , Nobuo Mizuhashi , Kazuto Yamamoto
CPC分类号： B21C51/00 , B21C37/08 , B21C37/0822 , B23K11/0873 , B23K13/046 , G01N21/952 , G01N2021/8411
摘要： An operation management device performs an operation management for electric resistance welding in which a strip-shaped metal plate is formed to have a cylindrical shape in such a manner that both end portions of the metal plate gradually face each other while the metal plate is conveyed, and a Vee convergence section, which is a portion at which both of the end portions butt against each other while facing each other, is welded. Furthermore, the operation management device includes: a measuring unit that measures a distance L [mm] between a first Vee convergence point at which both of the end portions of the metal plate geometrically come into contact with each other and a second Vee convergence point that is a contact point of both of the end portions of the metal plate, and a Vee convergence angle θ[°] at the first Vee convergence point on the basis of an image of an area including the Vee convergence section; and a determining unit that determines whether or not the distance L [mm] and the Vee convergence angle θ[°] satisfy the following equation (1). Lmin(θ/θst)−0.15≦L≦35 (1)
摘要翻译： 操作管理装置执行电阻焊接的操作管理，其中条形金属板形成为具有圆筒形状，使得金属板的两个端部在金属板被传送的同时逐渐面对， 以及Vee会聚部，其是两端部彼此相对的端部彼此面对的部分。 此外，操作管理装置包括：测量单元，其测量金属板的两个端部彼此接触的第一Vee会聚点与第二Vee会聚点之间的距离L [mm] 是基于包括Vee会聚部分的区域的图像的第一Vee会聚点处的金属板的两个端部的接触点和Vee会聚角度; [°] 以及确定距离L [mm]和Vee会聚角θ的距离是否满足下式（1）的确定单元。 Lmin（＆thetas; /＆thetas; st）-0.15＆nlE; L＆nlE; 35（1）
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6.发明授权公开(公告)号：US09050681B2
公开(公告)日：2015-06-09
申请号：US12449812
申请日：2008-02-29
申请人： Hideki Hamatani , Shinji Kodama , Nobuo Mizuhashi , Sunao Takeuchi , Tomohiro Nakaji , Takashi Miyakawa , Hitoshi Asahi , Michitoshi Tanimoto , Michimasa Mukai
发明人： Hideki Hamatani , Shinji Kodama , Nobuo Mizuhashi , Sunao Takeuchi , Tomohiro Nakaji , Takashi Miyakawa , Hitoshi Asahi , Michitoshi Tanimoto , Michimasa Mukai
CPC分类号： B23K13/00 , B23K10/00 , B23K11/0873 , B23K11/16 , B23K11/34 , B23K11/36 , B23K13/06 , B23K28/02 , B23K2101/06 , B23K2101/10 , B23K2101/18 , B23K2103/04 , Y10T428/12292
摘要： The present invention provides a method of production of electric resistance welded steel pipe able to stably reduce weld defects due to oxides by firing plasma and furthermore able to reduce plasma jet noise and comprises shaping steel plate 1 into a tube and electric resistance welding the abutting end faces 4 during which blowing on at least the abutting end faces 4a in the region 6 at the welding upstream side from the weld point 9 where the temperature becomes 650° C. or more a reducing high temperature (pseudo) laminar plasma obtained by applying voltage to a reducing gas containing H2 gas: 2 to 50 vol % to which is added a balance of Ar gas alone or a mixed gas of Ar gas to which N2 gas, He gas, or both are added. At that time, it is preferable to make the applied voltage over 120V and the make the plasma blowing conditions satisfy the following formula (1). 150
摘要翻译： 本发明提供一种电阻焊钢管的制造方法，其能够通过点火等离子体稳定地减少由于氧化物引起的焊接缺陷，并且还能够降低等离子体射流噪声，并且包括将钢板1成形为管，并且将邻接端 至少在熔点为熔点高于650℃的焊接点的焊接上游侧的区域6中的至少碰撞端面4a或更多的是通过施加电压而获得的还原高温（伪）层流等离子体 涉及含有H2气体的还原气体：2〜50体积％，添加余量的Ar气体或添加有N 2气体，He气体或二者的Ar气体的混合气体。 此时，优选使施加电压超过120V，使等离子体吹送条件满足下式（1）。 150 <4×（ΣG iM i）＆pgr; ×D×μava，T = 7000 <400 <1>
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公开(公告)号：US20100232678A1
公开(公告)日：2010-09-16
申请号：US12734413
申请日：2008-10-31
IPC分类号： G06K9/00
CPC分类号： G01J5/10 , B21C37/08 , B21C51/00 , B23K11/0873 , B23K11/25 , B23K31/125 , B23K2101/06 , B23K2103/04 , G01J5/0018 , G01J5/004
摘要： A system and method for monitoring the molten state for enabling a molten state, butting state, or other state of electric-resistance-welded pipe on-line more accurately than in the past are provided. That is, a mirror 23 provided at a front end side inside a container 21 receives light emitted by the welded parts 5 of the tube-shaped steel strip 1 themselves through heat resistant glass 22 from the side direction and reflects the image of the welded parts 5 of the tube-shaped steel strip 1 in the direction of a relay lens 24 provided at a base end side of a relay lens unit 13. The relay lenses 24 relay the image of the welded parts 5 of the tube-shaped steel strip 1 to a conversion lens 12, then the conversion lens 12 forms that image on the imaging area of a CCD camera 11. Therefore, it is possible to capture the welded parts 5 of the tube-shaped steel strip 1 from the side direction by a resolution in accordance with the resolution of the CCD camera 11 and possible to obtain information of the welded parts 5 of the tube-shaped steel strip 1 more accurately than in the past and on-line.
摘要翻译： 提供了一种用于比以往更准确地监测熔融状态以实现熔融状态，对接状态或其他状态的电阻焊管在线的系统和方法。 也就是说，设置在容器21内的前端侧的反射镜23通过耐热玻璃22从侧方接收管状钢带1的自身的焊接部5发出的光，并且反射焊接部的图像 管状钢带1沿着设置在中继透镜单元13的基端侧的中继透镜24的方向延伸。中继透镜24将管状钢带1的焊接部5的图像中继 转换透镜12，则转换透镜12在CCD照相机11的成像区域上形成该图像。因此，可以从侧面方向以分辨率捕获管状钢带1的焊接部分5 根据CCD摄像机11的分辨率，可以比过去和在线更准确地获得管状钢带1的焊接部分5的信息。
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8.发明授权公开(公告)号：US09199291B2
公开(公告)日：2015-12-01
申请号：US13581488
申请日：2011-03-22
申请人： Noboru Hasegawa , Hideki Hamatani , Takao Miura , Kunihiko Hatabara , Nobuo Mizuhashi , Kazuto Yamamoto
发明人： Noboru Hasegawa , Hideki Hamatani , Takao Miura , Kunihiko Hatabara , Nobuo Mizuhashi , Kazuto Yamamoto
IPC分类号： B23K13/01 , B23K9/073 , B23K11/00 , B23K9/02 , B21C51/00 , B21C37/08 , B23K13/04 , B23K11/087 , G01N21/952 , G01N21/84
CPC分类号： B21C51/00 , B21C37/08 , B21C37/0822 , B23K11/0873 , B23K13/046 , G01N21/952 , G01N2021/8411
摘要： An operation management device performs an operation management for electric resistance welding in which a strip-shaped metal plate is formed to have a cylindrical shape in such a manner that both end portions of the metal plate gradually face each other while the metal plate is conveyed, and a Vee convergence section, which is a portion at which both of the end portions butt against each other while facing each other, is welded. Furthermore, the operation management device includes: a measuring unit that measures a distance L [mm] between a first Vee convergence point at which both of the end portions of the metal plate geometrically come into contact with each other and a second Vee convergence point that is a contact point of both of the end portions of the metal plate, and a Vee convergence angle θ[°] at the first Vee convergence point on the basis of an image of an area including the Vee convergence section; and a determining unit that determines whether or not the distance L [mm] and the Vee convergence angle θ[°] satisfy the following equation (1). Lmin(θ/θst)−0.15≦L≦35 (1)
摘要翻译： 操作管理装置执行电阻焊接的操作管理，其中条形金属板形成为具有圆筒形状，使得金属板的两个端部在金属板被传送的同时逐渐面对， 以及Vee会聚部，其是两端部彼此相对的端部彼此面对的部分。 此外，操作管理装置包括：测量单元，其测量金属板的两个端部彼此接触的第一Vee会聚点与第二Vee会聚点之间的距离L [mm] 是基于包括Vee会聚部分的区域的图像的第一Vee会聚点处的金属板的两个端部的接触点和Vee会聚角度; [°] 以及确定距离L [mm]和Vee会聚角θ的距离是否满足下式（1）的确定单元。 Lmin（＆thetas; /＆thetas; st）-0.15＆nlE; L＆nlE; 35（1）
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9.发明申请公开(公告)号：US20100104888A1
公开(公告)日：2010-04-29
申请号：US12449812
申请日：2008-02-29
申请人： Hideki Hamatani , Shinji Kodama , Nobuo Mizuhashi , Sunao Takeuchi , Tomohiro Nakaji , Takashi Miyakawa , Hitoshi Asahi , Michitoshi Tanimoto , Michimasa Mukai
发明人： Hideki Hamatani , Shinji Kodama , Nobuo Mizuhashi , Sunao Takeuchi , Tomohiro Nakaji , Takashi Miyakawa , Hitoshi Asahi , Michitoshi Tanimoto , Michimasa Mukai
CPC分类号： B23K13/00 , B23K10/00 , B23K11/0873 , B23K11/16 , B23K11/34 , B23K11/36 , B23K13/06 , B23K28/02 , B23K2101/06 , B23K2101/10 , B23K2101/18 , B23K2103/04 , Y10T428/12292
摘要： The present invention provides a method of production of electric resistance welded steel pipe able to stably reduce weld defects due to oxides by firing plasma and furthermore able to reduce plasma jet noise and comprises shaping steel plate 1 into a tube and electric resistance welding the abutting end faces 4 during which blowing on at least the abutting end faces 4a in the region 6 at the welding upstream side from the weld point 9 where the temperature becomes 650° C. or more a reducing high temperature (pseudo) laminar plasma obtained by applying voltage to a reducing gas containing H2 gas: 2 to 50 vol % to which is added a balance of Ar gas alone or a mixed gas of Ar gas to which N2 gas, He gas, or both are added. At that time, it is preferable to make the applied voltage over 120V and the make the plasma blowing conditions satisfy the following formula (1). 150
摘要翻译： 本发明提供一种电阻焊钢管的制造方法，其能够通过点火等离子体稳定地减少由于氧化物引起的焊接缺陷，并且还能够降低等离子体射流噪声，并且包括将钢板1成形为管，并且将邻接端 至少在熔点为熔点高于650℃的焊接点的焊接上游侧的区域6中的至少碰撞端面4a或更多的是通过施加电压而获得的还原高温（伪）层流等离子体 涉及含有H2气体的还原气体：2〜50体积％，添加余量的Ar气体或添加有N 2气体，He气体或二者的Ar气体的混合气体。 此时，优选使施加电压超过120V，使等离子体吹送条件满足下式（1）。 150 <4×（ΣG i M i）＆pgr; ×D×μava，T = 7000 <400 <1>
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10.发明申请公开(公告)号：US20090158889A1
公开(公告)日：2009-06-25
申请号：US11992200
申请日：2006-09-25
CPC分类号： C22C38/58 , B23K35/3086 , B32B15/013 , C22C18/04 , C22C38/001 , C22C38/02 , C22C38/04 , Y10T428/12493 , Y10T428/12771 , Y10T428/12785 , Y10T428/12792 , Y10T428/12799
摘要： Disclosed are a weld joint and a stainless steel-based weld metal composition for the weld joint. The composition and weld joint made therefrom are suitable for welding a zinc-based alloy coated steel sheet. The weld is excellent in corrosion resistance and liquid-metal embrittlement crack resistance. This is accomplished by inhibiting liquid-metal embrittlement cracks of the stainless-steel-based weld metal when the zinc-based alloy coating steel sheet is welded using the stainless-steel-based weld metal. The weld joint comprises a welded portion of weld metal made of stainless-steel-based components, the weld metal containing in mass percent (%): C: 0.01-0.1; Si: 0.1-1; Mn: 0.5-2.5; Ni: 5-11; and Cr: 17-25, and the balance being iron and residual impurities, wherein the following expression are met: −0.81×Cr equivalent+23.2≦Ni equivalent≦0.95×Cr equivalent−8.1 . . . (1); Ni equivalent=Ni+30×C+0.5×Mn+30×N . . . (2); Cr equivalent=Cr+Mo+1.5×Si . . . (3).
摘要翻译： 公开了用于焊接接头的焊接接头和不锈钢基焊接金属组合物。 由此制成的组合物和焊接接头适用于焊接锌基合金涂层钢板。 焊缝耐腐蚀性和液态金属脆性抗裂性优异。 这是通过在使用不锈钢的焊接金属焊接锌基合金涂层钢板时抑制不锈钢焊接金属的液体 - 金属脆化裂纹来实现的。 焊接接头包括由不锈钢基部件制成的焊接金属焊接部分，焊接金属含有质量百分比（％）：C：0.01-0.1; Si：0.1-1; Mn：0.5-2.5; Ni：5-11; 和Cr：17-25，余量为铁和残余杂质，其中满足以下表达式：-0.81×Cr当量+ 23.2 <= Ni当量<= 0.95×Cr当量-8.1。 。 。 （1）; Ni当量= Ni + 30xC + 0.5xMn + 30xN。 。 。 （2）; Cr当量= Cr + Mo + 1.5xSi。 。 。 （3）。
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