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1. 发明专利

JP2012011407A Method for manufacturing welding joint and welding device for executing the same 有权
标题翻译：用于制造焊接接头和用于执行其的焊接装置的方法
公开(公告)号：JP2012011407A
公开(公告)日：2012-01-19
申请号：JP2010148787
申请日：2010-06-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KOJIMA KAZUHIRO , NOSE TETSUO , INOUE HIROSHIGE
IPC分类号： B23K9/173 , B23K9/095 , B23K9/12 , B23K9/127 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To provide a welding control means allowing a heat input amount not to fluctuate even when a groove sectional area fluctuates when manufacturing a welding joint formed of a steel plate with a plate thickness of >50 mm without using a specified expensive instrument.SOLUTION: When welding is carried out at a constant voltage by moving upward a truck mounted with a welding torch along a groove of a steel plate and two electrode vertical electrogas arc welding is carried out by controlling the truck to move upward following ascending speed of a melt pool based on a welding current, the welding torch is mounted on the truck so as to be moved, the moving speed of the truck is measured, and difference between the moving speed and reference welding speed preliminarily set is calculated for each constant interval. When there is difference, the welding torch is moved upward or downward with a constant distance to change the length of the protrusion of the welding wire, wire feeding speed is changed corresponding to the change of the welding current to control the welding current so as to become constant, and the ascending speed of the melt pool is made to coincide with the reference welding speed to allow heat input during welding to be constant so that welding is carried out.
摘要翻译：要解决的问题：提供一种焊接控制装置，即使当制造板厚度> 50mm的钢板形成的焊接接头时，即使在槽截面积波动时，热输入量也不会波动，而不使用指定昂贵的仪器。
解决方案：通过沿着钢板的槽向上移动安装有焊炬的卡车，以恒定的电压进行焊接，并且通过控制卡车在升序之后向上移动来执行两个电极垂直电动电弧焊接基于焊接电流的熔池的速度，将焊炬安装在卡车上以移动，测量卡车的移动速度，并且为每个计算预先设定的移动速度和参考焊接速度之间的差异恒定间隔。当存在差异时，焊枪以恒定的距离向上或向下移动以改变焊丝的突起的长度，焊丝进给速度根据焊接电流的变化而改变以控制焊接电流，从而变得恒定，使熔池的上升速度与参考焊接速度一致，以允许焊接期间的热输入恒定，从而进行焊接。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2010156668A Fatigue life estimation device of welded structure, fatigue life estimation method of welded structure, and computer program 有权
标题翻译：焊接结构的疲劳寿命估计装置，焊接结构的疲劳寿命估计方法和计算机程序
公开(公告)号：JP2010156668A
公开(公告)日：2010-07-15
申请号：JP2009093395
申请日：2009-04-07
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： OKAWA TEPPEI , NOSE TETSUO , SHIMANUKI HIROSHI
IPC分类号： G01N3/00 , G01N3/32
摘要： PROBLEM TO BE SOLVED: To calculate comparatively simply and highly accurately a fatigue life of a welded structure on which a fluctuation amplitude load works.
SOLUTION: Finite element analysis by a shell model is performed, and a uniform stress component and a bending stress component at a fatigue life evaluation part 23 of a longitudinal face 21 are determined. A stress distribution corresponding to a welded joint form is extracted from a database, and the uniform stress component, the bending stress component, and a shape parameter of a member and a weld bead are input into the stress distribution, and a stress distribution of a plate thickness cross section 41 of the longitudinal face 21 is calculated. A residual stress distribution corresponding to the welded joint form and a weld toe processing condition is extracted from the database, and the shape parameter of the member and the weld bead, a material property and a weld condition are input into the residual stress distribution, and a residual stress distribution of the plate thickness cross section 41 of the longitudinal face 21 is calculated. A fatigue crack propagation lifetime at the fatigue life evaluation part 23 is calculated by using the stress distribution and the residual stress distribution of the plate thickness cross section 41 of the longitudinal face 21.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：相对简单高精度地计算出波动振幅负载工作的焊接结构的疲劳寿命。解决方案：通过壳模型进行有限元分析，并确定纵向面21的疲劳寿命评估部23处的均匀的应力分量和弯曲应力分量。从数据库中提取对应于焊接接头形状的应力分布，并将构件和焊道的均匀应力分量，弯曲应力分量和形状参数输入到应力分布中，并且应力分布计算纵向面21的板厚横截面41。从数据库中提取对应于焊接接头形状和焊接趾部加工条件的残余应力分布，将构件和焊道的形状参数，材料性质和焊接条件输入残余应力分布，计算纵向面21的板厚剖面41的残余应力分布。通过使用纵向面21的板厚剖面41的应力分布和残余应力分布来计算疲劳寿命评估部23的疲劳裂纹扩展寿命。（C）2010，JPO＆INPIT

3. 发明专利

JP2010142870A Working method using ultrasonic impact treatment 有权
标题翻译：使用超声波冲击处理的工作方法
公开(公告)号：JP2010142870A
公开(公告)日：2010-07-01
申请号：JP2008326065
申请日：2008-12-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SUZUKI TAMAKI , TOMINAGA NORIYOSHI , NOSE TETSUO
IPC分类号： B23K31/00
摘要： PROBLEM TO BE SOLVED: To provide a method for the ultrasonic impact treatment improving the fatigue characteristic under the environment of the cyclic load by efficiently introducing a large residual compressive stress to a residual tensile stress generated in a weld toe of a butt weld joint.
SOLUTION: When forming a working band having the maximum depth of 20-300 μm from a surface of a steel plate by performing the ultrasonic impact treatment on a material surface in the direction along a weld toe, the ultrasonic impact treatment is performed so that the position for the ultrasonic impact treatment is a part including no weld toe, and an end of the working band is located in the range of ≥0.1 mm and ≤7 mm from the weld toe.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种超声波冲击处理方法，通过有效地将大的残余压缩应力引入到对接焊缝的焊缝趾部中产生的残余拉伸应力，从而改善循环载荷的环境下的疲劳特性联合。解决方案：通过对沿着焊趾的方向对材料表面进行超声波冲击处理从钢板的表面形成最大深度为20-300μm的工作带时，进行超声波冲击处理使得超声波冲击处理的位置是不包括焊趾的部分，并且工作带的端部位于距焊缝≥0.1mm和≤7mm的范围内。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009039619A Impact pin holder for ultrasonic impact damper 有权
标题翻译：超声冲击阻尼器的冲击引脚保持器
公开(公告)号：JP2009039619A
公开(公告)日：2009-02-26
申请号：JP2007205588
申请日：2007-08-07
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： SHIMANUKI HIROSHI , NOSE TETSUO
IPC分类号： B06B1/20 , B23K31/00 , C21D7/06
摘要： PROBLEM TO BE SOLVED: To provide an impact pin holder for an ultrasonic impact damper which can effectively cool an impact pin and a holder while controlling heat generation due to friction between the impact pin and the holder.
SOLUTION: This pin holder 1 of an impact pin 10 to be used for the ultrasonic impact damper has a compressed air introduction orifice 2 for introducing compressed air into the holder 1 from a tip of the pin outside of the pin holder 1, and not less than three axial grooves 6 which communicates with the compressed air introduction orificee 2 and opens circumferentially on the impact pin side and has a compressed air discharge vent opened in the side end part of a vibrator of the ultrasonic impact damper, arranged at an equal interval, in the peripheral direction. Besides, the gross area Se of the compressed air discharge vent for not less than three axial grooves 6 on the side end surface of the vibrator, the clearance area Sc formed between the inner surface of a pin hole 5 and the outer surface of the impact pin 10 and a sectional area Sp of the compressed air introduction orifice 2, are set so as to meet the relationship of Sp>Se+2Sc and Se>2Sc.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于超声波冲击阻尼器的冲击销保持器，其可以有效地冷却冲击销和保持器，同时控制由于冲击销和保持器之间的摩擦而产生的热量。解决方案：用于超声波冲击阻尼器的冲击销10的该针座1具有压缩空气引入孔2，用于将压缩空气从销保持器1外部的销的顶端引入保持器1，以及不小于三个轴向槽6，其与压缩空气引入孔2连通并在冲击销侧周向开放，并且具有在超声波冲击阻尼器的振动器的侧端部中开口的压缩空气排出口，相等间隔，在周边方向。此外，在振动器的侧端面上不少于三个轴向槽6的压缩空气排出口的总面积Se，在销孔5的内表面与冲击的外表面之间形成的间隙区域Sc 销10和压缩空气导入口2的截面面积Sp被设定为满足Sp> Se + 2Sc和Se> 2Sc的关系。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2005334887A Welded joint having excellent fatigue property 有权
标题翻译：焊接接头具有优异的疲劳性能
公开(公告)号：JP2005334887A
公开(公告)日：2005-12-08
申请号：JP2004152630
申请日：2004-05-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NOSE TETSUO , NAKAJIMA KIYOTAKA , ISHIKAWA TADASHI
IPC分类号： B23K9/23 , B23K31/00 , B23K35/30 , B23K103/04 , C22C38/00 , C22C38/10 , C22C38/52
摘要： PROBLEM TO BE SOLVED: To provide a welded joint having high fatigue strength properties, which is formed by a simple welding method utilizing a low thermal expansion welding material.
SOLUTION: The weld bead of the welded joint having excellent fatigue properties obtained by welding steel in which the average thermal expansion coefficient at 30 to 400°C is 11×10
-6 to 20×10
-6 /°C is formed of a low thermal expansion weld metal in which the average thermal expansion coefficient at 30 to 400°C is 2×10
-6 to 10×10
-6 /°C. The weld bead of the welded joint is preferably formed of a low thermal expansion weld metal having a composition containing, by mass, ≤0.20% C, 0.05 to 0.3% Si, 0.3 to 1.5% Mn, ≤0.01% P, ≤0.01% S, 0.005 to 0.1% Al, 20.0 to 30.0% Ni, 4.0 to 16.% Co and ≤0.0300% O, and the balance Fe with inevitable impurities.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供通过使用低热膨胀焊接材料的简单焊接方法形成的具有高疲劳强度特性的焊接接头。解决方案：通过焊接钢获得的具有优异的疲劳性能的焊接接头的焊道，其中30至400℃的平均热膨胀系数为11×10 -6 SPX至20×10 由30〜400℃的平均热膨胀系数为2×10 -6 -6〜10×10 -6的低热膨胀焊接金属形成 -6 10 -6 /℃。焊接接头的焊缝优选由低热膨胀焊接金属形成，其具有以质量％计含有0.03％的Si，0.3〜1.5％的Mn，≤0.01％的P，≤0.01％ S，0.005〜0.1％的Al，20.0〜30.0％的Ni，4.0〜16.％的Co和≤0.0300％的O，余量为Fe与不可避免的杂质。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005298877A Steel plate with excellent fatigue crack propagation characteristic, and its manufacturing method 审中-公开
标题翻译：具有优异的疲劳裂纹扩展特性的钢板及其制造方法
公开(公告)号：JP2005298877A
公开(公告)日：2005-10-27
申请号：JP2004114377
申请日：2004-04-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NAKAJIMA KIYOTAKA , NOSE TETSUO
IPC分类号： B21B1/38 , B21B3/00 , C21D8/02 , C22C38/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel plate having excellent fatigue crack propagation characteristics and used for welded structural members for use in architectures, shipbuilding, bridges, construction machinery, marine structures, etc., and also to provide its manufacturing method.
SOLUTION: The steel plate has a composition consisting of, by mass, 0.03 to 0.2% C, 0.01 to 1.6% Si, 0.5 to 2% Mn, ≤0.02% P, ≤0.005% S, 0.001 to 0.05% Al, 0.001 to 0.008% N and the balance Fe with inevitable impurities. In the steel plate, the microstructure of a base material has a structure where a matrix phase is composed of ferrite of ≥150 Vickers hardness and a second phase is composed of granular martensite having 400 to 900 Vickers hardness, 5 to 30% area ratio and ≤3 aspect ratio (major axis/minor axis). Moreover, the average distance of the granular martensite is 5 to 50μm, and further, fatigue crack propagation rate da/dN when the stress intensity factor range ▵K at a stress ratio of 0.1 is 20 MPa√m is ≤10
-8 m/cycle.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有优异的疲劳裂纹扩展特性的钢板，并且用于建筑，造船，桥梁，工程机械，船舶结构等中的焊接结构构件，并且还提供其制造方法。钢板的组成为，以质量计含有0.03〜0.2％的C，0.01〜1.6％的Si，0.5〜2％的Mn，≤0.02％的P，≤0.005％的S，0.001〜0.05％的Al ，0.001〜0.008％N，余量为Fe与不可避免的杂质。在钢板中，基材的微结构具有以下结构：基质相由铁素体≥150维氏硬度组成，第二相由400〜900维氏硬度，5〜30％面积比的粒状马氏体组成， ≤3纵横比（长轴/短轴）。此外，粒状马氏体的平均距离为5〜50μm，另外，应力比为0.1时的应力强度因子范围▵K为20MPa·V时的疲劳裂纹扩展率da / dN为≤10< 8 米/循环。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2004167517A Locally cladded metal product, and production method therefor 有权
标题翻译：本地金属制品及其生产方法
公开(公告)号：JP2004167517A
公开(公告)日：2004-06-17
申请号：JP2002334491
申请日：2002-11-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , NAKAJIMA KIYOTAKA , NOSE TETSUO , TOMINAGA NORIYOSHI , HIGO YAKICHI , TAKASHIMA KAZUKI
IPC分类号： B23K20/04 , B23K20/00 , B23K20/10 , C21D7/06
摘要： PROBLEM TO BE SOLVED: To provide a metal product in which a part of the surface is locally cladded, and to provide a production method therefor.
SOLUTION: In the locally cladded metal product, a part of the surface is locally cladded with metallic materials of different materials. As for a part of the surface in the metal product, the region where recessed parts in which depth (h) is ≥5 μm, the diameter (D) of the equivalent circle is 50 to 1,000 μm, and the curvature radius (R) in the corner parts of edges is 10 μm to h/4 are allowed to exist in the area ratio of 20 to 80% is stacked with sheet-like metallic materials having a thickness of 10 μm to 5 mm and is cladded.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供其中部分表面局部包覆的金属产品，并提供其制造方法。
解决方案：在局部覆盖的金属产品中，表面的一部分局部用不同材料的金属材料包覆。对于金属制品的表面的一部分，深度（h）≥5μm的凹部的区域，当量圆的直径（D）为50〜1000μm，曲率半径（R）在厚度为10μm〜5mm的片状金属材料层叠层叠了20〜80％的面积比为10μm〜h / 4的边缘的角部，并进行包覆。版权所有（C）2004，JPO

8. 发明专利

JP2004167330A Method for improving coating adhesion of metal product 有权
公开(公告)号：JP2004167330A
公开(公告)日：2004-06-17
申请号：JP2002334509
申请日：2002-11-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , NAKAJIMA KIYOTAKA , NOSE TETSUO , TOMINAGA NORIYOSHI , HIGO YAKICHI , TAKASHIMA KAZUKI
IPC分类号： B24C1/00 , B05D3/12 , B05D7/14
摘要： PROBLEM TO BE SOLVED: To provide a method for improving the coating adhesion of a metal product.
SOLUTION: Ultrasonic impact treatment is applied on the surface of the metal product as surface treatment for coating. A recessed part at least 5 μm in depth (h), 50-1,000 μm in circle-corresponding diameter (D), and 10 μm-h/4 in radius of curvature (R) in the corner part of an edge is formed at an area rate of 20-80%.
COPYRIGHT: (C)2004,JPO

9. 发明专利

JP2004131794A Method for dehydrogenation of steel sheet and method for manufacturing steel sheet using the same 有权
标题翻译：钢板脱氢方法及其制造方法
公开(公告)号：JP2004131794A
公开(公告)日：2004-04-30
申请号：JP2002297528
申请日：2002-10-10
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ISHIKAWA TADASHI , NAKAJIMA KIYOTAKA , NOSE TETSUO
IPC分类号： C21D7/04 , C21D3/06 , C21D7/06 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for dehydrogenation of a steel sheet to sufficiently efficiently reduce the hydrogen immanent in the steel sheet by collecting the hydrogen dispersed in the thickness direction of the steel sheet to surface layer sections and a method for manufacturing the steel sheet using the same.
SOLUTION: The method for dehydrogenation of reducing the hydrogen immanent in the steel sheet comprises increasing the internal stress within the surface layer sections of the steel sheet, then heating the surface layer sections to 150 to 220°C. The method for manufacturing the steel sheet uses the same. Preferably the surfaces of the steel sheet of ≤200°C are struck by ultrasonic vibration terminals of ≥5 mm in the diameter of their leading edges.
COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2012179630A Welded joint of aluminum plate or aluminum alloy plate and steel plate, and method for welding aluminum plate or aluminum alloy plate to steel plate 审中-公开
标题翻译：铝板或铝合金板和钢板的焊接接头，以及将铝板或铝合金板焊接到钢板的方法
公开(公告)号：JP2012179630A
公开(公告)日：2012-09-20
申请号：JP2011044029
申请日：2011-03-01
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： NOSE TETSUO , MURAYAMA HAJIME , MIYAZAKI YASUNOBU , SAKIYAMA TATSUYA , SAGA MAKOTO
IPC分类号： B23K11/20 , B23K11/11 , B23K35/28 , B23K103/20 , C22C21/00
摘要： PROBLEM TO BE SOLVED: To provide a welded joint that has few constraints such as applicable conditions of spot welding and is superior in general-purpose properties, and also that does not deteriorate reliability of welding and has high joint strength.SOLUTION: The welded joint is employed by welding an Al plate 1 to a steel plate 2 by electrical resistance welding, while interposing a reactive layer 5 containing V at the ratio of 0.1-5 mass%, Fe and Al between the Al plate 1 and the steel plate 2.

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