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1. 发明专利

JP2001009573A WELDING JOINT OF HIGH TENSILE STEEL PLATE AND WELDING METHOD 失效
公开(公告)号：JP2001009573A
公开(公告)日：2001-01-16
申请号：JP17988499
申请日：1999-06-25
申请人： SUMITOMO METAL IND , NISSAN MOTOR
发明人： FUJIMOTO HIRONORI , FUKUI KIYOYUKI , KATSUKURA MASATO
IPC分类号： B23K11/16 , B23K11/11 , B23K103/04
摘要： PROBLEM TO BE SOLVED: To obtain a welding joint which is difficult to cut in a nugget by resistance welding a steel plate with a given value or more base metal strength and thickness, and making size of a heat-affected zone of the welding joint with a given value or more hardness to be smaller than the diameter of a corona bond part. SOLUTION: Resistance welding is performed to two or more high tensile steel plates of 440 MPa or more metal base strength and 1.2 mm or more thickness, so as to obtain a welding joint. A spot welding part is composed of a nugget to be melted/solidified and a heat-affected zone outside it, and a corona bond part to be pressure welded under high temperature exists on the interface of the plate adjacent to the nugget. The size of the heat-affected zone of the welding joint with (X+2Y)/3 or more hardness is smaller than the diameter of the corona bond part, where average hardness of the base metal is designated as X and average hardness in the nugget is as Y. The condition for performing resistance welding is set as t

2. 发明专利

JP2011089151A Method and apparatus for manufacturing hardened steel 有权
标题翻译：制造硬化钢的方法和装置
公开(公告)号：JP2011089151A
公开(公告)日：2011-05-06
申请号：JP2009241589
申请日：2009-10-20
申请人： Sumitomo Metal Ind Ltd , Sumitomo Pipe & Tube Co Ltd , 住友金属工業株式会社 , 住友鋼管株式会社
发明人： IMAI KAZUHITO , TOMIZAWA ATSUSHI , FUJIMOTO HIRONORI , NISHIHATA HITOMI , INOUE SABURO
IPC分类号： C21D9/08 , C21D1/667 , C21D1/70
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a hardened steel tube, in which even in case of applying a working method opened in Patent Literature 1, the generation of oxidized scale can be restrained or eliminated. SOLUTION: The steel tube 10 is heated in the hardenable temperature zone with a high frequency induction heating coil 13 set at a first position A separated from the steel tube 10 while feeding the steel tube 10 in the longitudinal direction, and the hardened steel tube 10-1 is manufactured by injecting cooling water onto the steel tube 10 with a cooling device set in a second position B at the down-stream side of the feeding direction of the steel tube 10 from the first position A to harden the steel tube 10. N 2 gas is supplied into a space 22 surrounding the heated portion 21 by injecting the N 2 gas toward the directing side to the second position B from the first position A onto the heated portion with the high frequency induction heating coil 13 in the steel tube 10. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：为了提供一种即使在专利文献1中应用打开工作方式的硬化钢管的制造方法，也可以抑制或消除氧化垢的产生。解决方案：钢管10在可淬火温度区域被加热，高频感应加热线圈13设置在与钢管10分离的第一位置A，同时沿纵向供给钢管10，并且硬化通过将冷却水从第一位置A在钢管10的供给方向的下游侧设置在第二位置B的冷却装置中，将冷却水注入到钢管10上来制造钢管10-1，以使钢通过从第一位置朝向第二位置B将N SB 2气体喷射到第二位置B，将N SB 2气体供应到围绕加热部分21的空间22中 A到钢管10中的高频感应加热线圈13的加热部分。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011089150A Method and apparatus for manufacturing hardened steel 有权
标题翻译：制造硬化钢的方法和装置
公开(公告)号：JP2011089150A
公开(公告)日：2011-05-06
申请号：JP2009241588
申请日：2009-10-20
申请人： Sumitomo Metal Ind Ltd , Sumitomo Pipe & Tube Co Ltd , 住友金属工業株式会社 , 住友鋼管株式会社
发明人： IMAI KAZUHITO , FUJIMOTO HIRONORI , TOMIZAWA ATSUSHI , NISHIHATA HITOMI , INOUE SABURO
IPC分类号： C21D9/08 , B60G7/00 , B62K19/06 , B62M3/00 , C21D1/667 , C21D1/70
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a hardened steel, such as hardened steel pipe, wherein even in case of applying the working method opened in Patent Literature 1 (the previous patent application with this applicant), the generation of oxidized scale can be restrained or canceled. SOLUTION: The apparatus for manufacturing the hardened steel is provided with; a feeding device for feeding the steel in the longitudinal direction; a heating device which is arranged at a first position separated from the feeding steel and heats the steel to a hardenable temperature zone; a cooling device wherein the steel is hardened by injecting cooling medium onto the steel in a second position at the downstream side to the feeding direction of the steel from the first position; and a scale-generation preventing gas supplying system wherein inert gas or reducing gas is filled up in the space surrounding the portion heated with the heating device, in the steel. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种硬化钢的制造装置，例如硬化钢管，其中即使在专利文献1（本申请人的以前的专利申请）中开启了工作方法的情况下，的氧化垢可以被抑制或消除。
解决方案：硬化钢的制造装置设有：用于沿纵向供给钢的进给装置; 加热装置，其布置在与进料钢分开的第一位置，并将钢加热到可硬化的温度区; 冷却装置，其中通过在第一位置处的钢的进给方向的下游侧的第二位置将冷却介质注入到钢上而硬化; 以及其中在钢中，在与加热装置加热的部分周围的空间中填充惰性气体或还原气体的防垢气体供给系统。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011006766A Cold rolled steel sheet for resistance welding, and method for producing the same 有权
标题翻译：用于电阻焊的冷轧钢板及其制造方法
公开(公告)号：JP2011006766A
公开(公告)日：2011-01-13
申请号：JP2009153995
申请日：2009-06-29
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MASUNO TAMOTSU , AKIOKA KOJI , HAYASHI KOTARO , FUJIMOTO HIRONORI , NISHIHATA HITOMI
IPC分类号： C22C38/00 , C21D9/48 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a cold rolled steel sheet for resistance welding which has a high tensile strength of ≥590 MPa and satisfactory weld zone strength in combination in the case projection welding is performed, and is suitable as the stock for automotive parts using projection welding.SOLUTION: The cold rolled steel sheet for resistance welding has a chemical composition comprising 0.05 to 0.20% C, 0.4 to 2.0% Si, 0.1 to 3.0% Mn, ≤0.02% P, ≤0.01% S, ≤1.0% Al and ≤0.01% N, and the balance Fe with impurities, wherein solid solution Si concentration in the surface layer part of the steel sheet prescribed by formula (1); solid solution Si concentration=T-Ois ≥0.2 mass%, the maximum depth of cracks in the surface of the steel sheet is ≤5 μm, and also, the number density of cracks with a width of ≤6 μm and a depth of ≥2 μm is ≤10 pieces/50 μm, and has mechanical properties satisfying a tensile strength of ≥590 MPa. In the formula (1), Tis the concentration (unit: mass%) of the total Si in the surface layer part of the steel sheet from the surface of the steel sheet to a depth position of 100 nm, and Ois the concentration (unit: mass%) of Si forming oxide in the surface layer part of the steel sheet.
摘要翻译：要解决的问题：为了提供具有高抗拉强度≥590MPa的电阻焊的冷轧钢板，并且在进行突起焊接的情况下组合时具有令人满意的焊接区强度，并且适合作为使用投影焊接方法：用于电阻焊接的冷轧钢板具有化学成分，其含有0.05〜0.20％的C，0.4〜2.0％的Si，0.1〜3.0％的Mn，≤0.02％的P，≤0.01％的S，≤1.0％的Al 和≤0.01％N，余量为Fe与杂质，其中由式（1）规定的钢板的表层部分中的固溶Si浓度; 固溶Si浓度= T-Ois≥0.2质量％，钢板表面的最大裂纹深度≤5μm，宽度≤6μm，深度≥5μm的裂纹数密度 2μm为≤10个/50μm，具有满足拉伸强度≥590MPa的机械性能。在式（1）中，T表示从钢板表面到深度位置的钢板表层部分中的总Si的浓度（单位：质量％），其浓度（单位：质量％）：质量％）在钢板的表层部分形成氧化物。

5. 发明专利

JP2011006764A Cold rolled steel sheet for projection welding 有权
标题翻译：用于投影焊接的冷轧钢板
公开(公告)号：JP2011006764A
公开(公告)日：2011-01-13
申请号：JP2009153993
申请日：2009-06-29
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MASUNO TAMOTSU , FUJIMOTO HIRONORI , NISHIHATA HITOMI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a cold rolled steel sheet for projection welding, which has a tensile strength of ≥590 MPa and satisfactory weld zone strength in the case a welding base metal such as a projection nut and a projection bolt is projection-welded, and is suitable as the stock for automotive parts using projection welding.SOLUTION: The cold rolled steel sheet for projection welding has a chemical composition comprising 0.05 to 0.20% C, 0.6 to 2.0% Si, 0.l to 3.0% Mn, ≤0.02% P, ≤0.01% S, ≤1.0% Al and ≤0.01% N, and the balance Fe with impurities, wherein atomic ratio (Si/Mn) is
摘要翻译：要解决的问题：为了提供一种用于突起焊接的冷轧钢板，其具有≥590MPa的拉伸强度和在诸如突出螺母和突出螺栓的焊接金属基体是投影焊接的情况下的令人满意的焊接区域强度适用于使用投影焊接的汽车部件的原料。解决方案：用于投影焊接的冷轧钢板具有包含0.05至0.20％的C，0.6至2.0％的Si，0.1至3.0％的Mn，≤ 0.02％P，≤0.01％S，≤1.0％Al和≤0.01％N，余量为Fe与杂质，其中原子比（Si / Mn）<0.5，钢的表层部分的数密度从长轴≥50nm到深度位置15μm的Si-Mn系复合氧化物的钢板的表面的片材为≤100个/100μm，钢板表面的最大裂纹深度 ≤5μm，宽度≤6μm，深度≥2μm的裂纹的数量密度也≤3 10片/50μm，拉伸强度≥590MPa。

6. 发明专利

JP2005074467A Spot welding method and spot-welded steel sheet member 有权
标题翻译：点焊焊接方法和点焊焊接钢板
公开(公告)号：JP2005074467A
公开(公告)日：2005-03-24
申请号：JP2003307864
申请日：2003-08-29
申请人： Sumitomo Metal Ind Ltd , Toyoda Iron Works Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 住友金属工業株式会社 , 豊田鉄工株式会社
发明人： OBAYASHI AKIRA , MIYAJI SHINSUKE , SUDO SHUNTARO , IMAI KAZUHITO , FUJIMOTO HIRONORI
IPC分类号： B23K11/00 , B23K11/11 , B23K11/16 , B23K103/04 , B62D21/00 , B62D25/00 , B62D39/00 , F16S1/10
摘要： PROBLEM TO BE SOLVED: To provide a spot welding method capable of stably spot-welding three or more superimposed steel sheets mutually without causing welding defects even by using a movable spot welding machine.
SOLUTION: Among three or more steel sheets 1-3 to be superimposed mutually, the strongest one 2 is positioned between the other two steel sheets 1, 3. In such superimposed condition, the three steel sheets are held between a pair of electrode tips 12, 14, and then, the parts so held in-between are spot-welded to each other. Thus, the steel sheets 1, 3 having a relatively low strength or rigidity are situated on the outer side in the thickness direction so as to be brought into contact with the pair of electrode tips 12, 14, while the steel sheet having the highest strength or rigidity is situated on the inner side in the thickness direction. Consequently, the three or more superimposed steel sheets 1-3 are suitably spot-welded with stable quality free from welding defects even if a movable spot welding machine is used.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供即使使用可动点焊机也能够相互稳定地点焊三个以上的叠加钢板而不引起焊接缺陷的点焊方法。解决方案：在三个或更多个相互叠加的钢板1-3中，最强的一个2位于另外两个钢板1,3之间。在这种叠加状态下，三个钢板保持在一对电极头12,14，然后如此保持在其间的部件彼此点焊。因此，具有较低强度或刚性的钢板1,3位于厚度方向的外侧，以便与一对电极头12,14接触，而具有最高强度的钢板或刚性位于厚度方向的内侧。因此，即使使用可动点焊机，三种以上叠加钢板1-3适当地点焊，质量也不受焊接缺陷的影响。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2011168082A Structural member for automobile and method for manufacturing the same 有权
标题翻译：用于汽车的结构构件及其制造方法
公开(公告)号：JP2011168082A
公开(公告)日：2011-09-01
申请号：JP2010031193
申请日：2010-02-16
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： FUJIMOTO HIRONORI , UEDA HIDEKI , TOKI TAMOTSU , NAKADA MASAHIRO
IPC分类号： B60R19/04 , B60J5/00 , B62D25/04 , B62D25/20
摘要： PROBLEM TO BE SOLVED: To provide a structural member for an automobile light in weight, having high bending strength, and superior in collision performance.
SOLUTION: The structural member 20 for the automobile has a closed cross section formed with a first material 22 having a flange 22a and a second material 23, and also includes a cylindrical body in which the first material 22 and the second material 23 are spot-welded through the flange 22a. Resin 24 interposed in a first region between a bending part 22b adjacent to the flange 22a and the second material 23 is provided.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种重量轻，抗弯强度高，碰撞性能优异的汽车用轻型构件。解决方案：用于汽车的结构件20具有形成有具有凸缘22a和第二材料23的第一材料22的闭合截面，并且还包括圆柱体，第一材料22和第二材料23 通过凸缘22a点焊。设置有插入在与凸缘22a相邻的弯曲部22b和第二材料23之间的第一区域中的树脂24。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2009255179A Material for welding, weld product and automobile body 有权
标题翻译：焊接材料，焊接产品和汽车部件
公开(公告)号：JP2009255179A
公开(公告)日：2009-11-05
申请号：JP2009183536
申请日：2009-08-06
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NAKADA MASAHIRO , FUJIMOTO HIRONORI
IPC分类号： B23K26/20 , B23K31/00 , B21D22/02 , B21D53/88 , B23K9/00 , B23K9/23 , B23K10/00 , B23K10/02 , B23K26/00 , B23K26/32 , B23K33/00
CPC分类号： B23K11/14 , B23K9/0026 , B23K9/23 , B23K10/00 , B23K10/02 , B23K26/22 , B23K26/242 , B23K26/244 , B23K26/26 , B23K26/28 , B23K26/32 , B23K33/00 , B23K2201/006 , B23K2201/18 , B23K2201/34 , B23K2203/04 , B23K2203/08 , B23K2203/50 , Y10T403/477 , Y10T428/12792 , Y10T428/12799
摘要： PROBLEM TO BE SOLVED: To provide a material for welding, a weld product and an automobile body, which can prevent the occurrence of weld defects and obtain a good weld with certainty. SOLUTION: Disclosed is a material for welding 5 having a region 11 in which welding such as laser welding or arc welding is performed, the region 11 including indentations 5a-1 which are produced at an almost fixed sheet thickness by carrying out a first working step comprising embossing, V-bending, U-bending, L-bending, drawing, stepped drawing, or a combination of these to form a curved portion 5a in the material being worked, and a second working step which is press working which crushes the curved portion 5a which is formed by the first working step. The indentations 5a-1 have a protruded portion 11a which projects from a flat surface which forms the surface of the material being worked 5, and a recessed portion 11b which is formed on the inside of the protruded portion 11. Indentations 5a-1 are provided in the form of at least two separated dots so as to be generally parallel to the predicted welding position and are arranged on the expected welding position. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供焊接材料，焊接产品和汽车车身，可以防止焊接缺陷的发生，确保获得良好的焊接。解决方案：公开了一种具有区域11的焊接材料5，其中进行诸如激光焊接或电弧焊接的焊接，通过执行以几乎固定的板厚制造的包括凹口5a-1的区域11，第一工作步骤包括压花，V形弯曲，U形弯曲，L形弯曲，拉伸，阶梯拉伸或它们的组合以在被加工材料中形成弯曲部分5a，以及第二加工步骤，粉碎由第一工作步骤形成的弯曲部分5a。凹部5a-1具有从形成被加工材料5的表面的平坦面突出的突出部11a和形成在突出部11的内侧的凹部11b。设置有凹部5a-1 以至少两个分开的点的形式，大致平行于预测的焊接位置并且布置在预期的焊接位置。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2003311453A Laser welding method and welding set 审中-公开
标题翻译：激光焊接方法和焊接设备
公开(公告)号：JP2003311453A
公开(公告)日：2003-11-05
申请号：JP2002120697
申请日：2002-04-23
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： UCHIHARA MASATO , FUJIMOTO HIRONORI , FUKUI KIYOYUKI
IPC分类号： B23K9/16 , B23K9/167 , B23K26/00 , B23K26/20 , B23K26/32 , B23K103/04 , B23K103/16
摘要： PROBLEM TO BE SOLVED: To surely and easily prevent the formation of a pore in a weld zone without embossing the material to be welded and while suppressing an increase of a manufactured cost as far as possible in superposing two galvanized steel sheets on each other and welding these sheets. SOLUTION: The galvanized steel sheets 4a and 4b are lap welded by superposing these steel sheets on each other in their thickness direction, and irradiating the superposed section of the steel sheets 4a and 4b with a laser beam from the side of the steel sheet 4a toward the side of the steel sheet 4b. At this time, an elongation deformation is generated in the section desired to be welded of the steel sheet 4a to from the projecting deformation to the direction opposite to the other steel sheet 4b, by which a closed clearance 5 is formed between the steel sheets 4a and 4b and thereafter the section desired to be welded formed with the projecting deformation is irradiated with the laser beam 2a. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了确保和容易地防止在焊接区域中形成孔而不对待焊接的材料进行压花，同时尽可能地抑制制造成本的增加，以在每个上叠加两个镀锌钢板其他和焊接这些床单。解决方案：镀锌钢板4a和4b通过在厚度方向上叠置这些钢板而进行搭接焊，并用钢板侧面的激光束照射钢板4a和4b的叠置部分片材4a朝向钢板4b侧。此时，在钢板4a所期望的焊接部分产生从伸出变形到与另一钢板4b相反的方向的伸长变形，由此在钢板4a之间形成闭合间隙5 并且随后用激光束2a照射期望被焊接形成的突出变形的部分。版权所有（C）2004，JPO

10. 发明专利

JP2012126943A Cold-rolled steel sheet for resistance welding, and method for producing the same 有权
标题翻译：用于电阻焊接的冷轧钢板及其制造方法
公开(公告)号：JP2012126943A
公开(公告)日：2012-07-05
申请号：JP2010277959
申请日：2010-12-14
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： MASUNO TAMOTSU , FUJIMOTO HIRONORI , NISHIHATA HITOMI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/58 , C23C8/14
摘要： PROBLEM TO BE SOLVED: To provide a cold-rolled steel sheet for resistance welding, including a high tensile strength of ≥590 MPa, and an excellent weld zone strength when being projection-welded, and suitable for a material for an automobile component to which projection welding is used.SOLUTION: The cold-rolled steel sheet for resistance welding has a chemical composition including 0.05-0.20% C, 0.4-1.6% Si+Al, 0.1-3.0% Mn, ≤0.02% P, ≤0.01% S, ≤0.01% N, and a remainder composed of Fe and impurities, and has mechanical properties in which the total of a solid solution Si concentration and a solid solution Al concentration of a steel sheet surface layer part specified by formula (1): solid solution Si concentration=T-Oand formula (2): solid solution Al concentration=T-Ois ≥0.20 mass%, the largest depth of a crack of the steel sheet surface is ≤5 μm, the number density of cracks having the width of ≤6 μm and the depth of ≥2 μm is ≤10/50 μm, and a tensile strength is ≥590 MPa, wherein Tand Tare each concentration (unit: mass%) of the total of Si and Al in the steel sheet surface layer part from the steel sheet surface to a position of the depth of 30 nm, and Oand Oare each concentration (unit: mass%) of Si and Al forming oxides in the steel sheet surface layer part.
摘要翻译：要解决的问题：提供一种电阻焊接用的冷轧钢板，包括≥590MPa的高拉伸强度，在投影焊接时具有优异的焊接区域强度，适用于汽车用材料使用投影焊接的部件。
解决方案：用于电阻焊接的冷轧钢板具有包括0.05-0.20％C，0.4-1.6％Si + Al，0.1-3.0％Mn，≤0.02％P，≤0.01％S，≤ 0.01％N，剩余部分由Fe和杂质构成，其特征在于，具有通过式（1）表示的钢板表面层部分的固溶Si浓度和固溶Al浓度的总和的机械特性：固溶Si 浓度= T Si 和式（2）：固溶体Al浓度= T A1 -O Al ≥0.20质量％，钢板表面的最大裂纹深度≤5μm，裂纹的数量密度为宽度≤6μm，深度≥2μm为≤10/50μm，拉伸强度≥590MPa，其中T Si ，T Si 和O Al 分别是浓度（单位：质量％）的Si和Al在钢板表面层部分形成氧化物。版权所有（C）2012，JPO＆INPIT

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