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1. 发明专利

JP2006281303A Submerged arc welding method for high strength steel sheet 有权
标题翻译：用于高强度钢板的焊接弧焊方法
公开(公告)号：JP2006281303A
公开(公告)日：2006-10-19
申请号：JP2005107989
申请日：2005-04-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORIMOTO YUTAKA , SHINADA KOICHI , YOSHIDA TATSUYA , TERADA YOSHIO , HARA TAKUYA
IPC分类号： B23K9/18 , B23K35/30 , B23K35/362 , B23K103/04 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a submerged arc welding method for a high strength steel sheet where, when a high strength steel sheet having a tensile strength of 700 to 1,200 MPa is subjected to submerged arc welding, a weld metal having high strength satisfying the tensile strength of 700 to 1,200 MPa which is equal to that of the steel sheet can be obtained, and also, a weld joint in which the defect of cracks generated at the toe parts of a weld bead is prevented, and which is free from defects, is sound and has excellent mechanical strength such as strength and fatigue strength can be obtained.
SOLUTION: In the method where a high strength steel sheet having the tensile strength of 700 to 1,200 MPa is subjected to submerged arc welding using filling flux and a welding wire, using the flux having a particle distribution in which fine particles with the particle diameter of ≤210 μm are comprised by 5 to 60 mass%, a weld metal in which the ratio of the volume of a deposited metal (Vd) to the volume in a bevel per unit length of a weld bead (Vg), (Vd/Vg) is 1.05 to 3.00, and also having the tensile strength of 700 to 1,200 MPa is formed in the bevel.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种高强度钢板的埋弧焊接方法，其中当对具有700至1200MPa的拉伸强度的高强度钢板进行埋弧焊时，具有高的可以获得满足与钢板相同的700〜1200MPa的拉伸强度的强度，也可以获得防止在焊缝的趾部产生的裂纹的缺陷的焊接接头，无缺陷，声音良好，机械强度优异，可获得强度和疲劳强度。解决方案：使用具有700〜1200MPa的拉伸强度的高强度钢板，使用填充焊剂和焊丝进行埋弧焊的方法中，使用具有粒子分布的助熔剂，其中微粒与 ≤210μm的粒径为5〜60质量％，焊接金属（其中沉积金属的体积比（Vd））与焊道单位长度的斜面（Vg）的比例（Vg），（ Vd / Vg）为1.05〜3.00，在斜面上也形成了拉伸强度为700〜1200MPa。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2008260030A Apparatus for manufacturing high strength welded steel pipe 有权
标题翻译：制造高强度焊接钢管的装置
公开(公告)号：JP2008260030A
公开(公告)日：2008-10-30
申请号：JP2007103204
申请日：2007-04-10
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TERASAWA TAKASHI , YOSHIDA TATSUYA , HATTORI YUTAKA , TSURU EIJI
IPC分类号： B21C37/08 , B21D5/12
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a high strength welded steel pipe, which apparatus can manufacture a steel pipe having a sound welded portion by narrowing a seam gap and by optimizing the position of the seam while preventing the rotation and twist of the steel pipe in manufacturing the high strength welded steel pipe.
SOLUTION: The apparatus for manufacturing the welded steel pipe by welding the butted portion of an O-can comprises a plurality of fin rolls having a circular disk shape fin portion to be partially inserted into the butted portion of the O-can to be carried and a hourglass shape drum for pressing the outer surface of the O-can in the neighborhood of the butted portion; a top roll for reforming the shape of the O-can and the shape of the butted portion; and a welding torch for welding the butted portion. The hourglass shape drum of the fin roll is formed such that the diameters of the portions separated in both directions from the fin portion outward increase with the separated distance.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种高强度焊接钢管的制造装置，该装置可以通过缩小接缝间隙来制造具有声音焊接部分的钢管，并且通过优化接缝的位置同时防止旋转并在制造高强度焊接钢管的钢管扭转。解决方案：通过焊接O形罐的对接部分来制造焊接钢管的装置包括多个翅片辊，其具有圆形翅片部分，以部分地插入到O形罐的对接部分中并且用于在对接部分附近按压O形罐的外表面的沙漏形鼓; 用于重新形成O形罐的形状的顶辊和对接部分的形状; 以及用于焊接对接部分的焊枪。翅片辊的沙漏形状的鼓形成为使得从翅片部向外分离的部分的直径随分离距离而增加。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2008119710A Method for manufacturing high-strength welded steel tube 有权
标题翻译：制造高强度焊接钢管的方法
公开(公告)号：JP2008119710A
公开(公告)日：2008-05-29
申请号：JP2006304552
申请日：2006-11-09
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TSURU EIJI , AGATA ATSUSHI , YOSHIDA TATSUYA , SUZUKI TAKESHI , TERASAWA TAKASHI , HATTORI YUTAKA , TERADA YOSHIO
IPC分类号： B21C37/08 , B21D5/01
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a high-strength welded steel tube, which, when manufacturing a welded steel tube using a UOE process, prevents buckling, does not generate a crack from a weld part, such as a toe crack and an expanding crack, and does not cause tack-welding failure of the weld part.
SOLUTION: In manufacturing a welded steel tube, the end parts of a steel plate is bent with a pressing force w(N/mm) of an upper die, which is determined by A≤w≤B or A×C≤w≤B/D, while satisfying the following formulae 0.15≤R
1 /D≤0.25 and 135≤u≤160, wherein, R
1 (mm) is the radius of curvature of the working face of an upper die, u(mm) is the distance in the horizontal direction from the center of curvature of the upper die to the end part of the steel plate, s(MPa) is the tensile strength of the steel plate, D(mm) is the outer diameter of the welded tube to be manufactured, A and B are the values determined by s, and C and D are the values determined by s and u.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造高强度焊接钢管的方法，当使用UOE工艺制造焊接钢管防止弯曲时，不会从焊接部分产生裂纹，例如趾裂和扩张裂纹，不会引起焊接部位的焊接失效。
解决方案：在制造焊接钢管时，钢板的端部以上模的压力w（N / mm）弯曲，由A≤w≤B或A×C≤ w≤B/ D，同时满足下列公式：0.15≤R 1 /D≤0.25和135≤u≤160，其中，R SB =（1 / 上模的工作面的曲率，u（mm）是从上模的曲率中心到钢板的端部的水平方向的距离，s（MPa）是钢板的拉伸强度钢板，D（mm）是要制造的焊接管的外径，A和B是由s确定的值，C和D是由s和u确定的值。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007192721A Bead shape detection technique and device thereof 有权
标题翻译： BEAD形状检测技术及其设备
公开(公告)号：JP2007192721A
公开(公告)日：2007-08-02
申请号：JP2006012416
申请日：2006-01-20
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HASHIGUCHI SHOHEI , KUNINAGA MANABU , TERASAWA TAKASHI , SUZUKI TAKESHI , YOSHIDA TATSUYA
IPC分类号： G01B11/24 , B23K9/095 , B23K9/127 , B23K31/00 , B23K101/06 , G01B11/02 , G01B11/26
摘要： PROBLEM TO BE SOLVED: To provide a bead shape detection device capable of detecting bead shape more than comparable accuracy from cross-sectional profile of steel pipe obtained by optical means, such as photo cutting technique and laser range finder and the like, even if bead is of gently uneven as well as height of bead is low.
SOLUTION: In the bead shape detection technique where linear beam of light or scanning dotted light is irradiated to weld zones of welded steel pipes, imageries on the surface of welded zones irradiated by linear beam of light or scanning dotted light are imaged, and the cross-sectional profile of steel pipes by optical means are detected, after a coordinate of a temporary apex of the bead is computed by the peak search from the cross-sectional profile, a range of a certain width including of apex of the bead is approximated with a first function, while, by adopting a position, as a starting point, which has a certain distance far from the temporary apex of bead as a reference, a certain width at outside is approximated with a second function, and after an intersecting point of the first function and the second function is computed as a terminal point of the bead, bead shape is computed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够从诸如光切割技术和激光测距仪等通过光学装置获得的钢管的横截面轮廓上比可比较的精度更好地检测胎圈形状的胎圈形状检测装置，即使珠子轻轻地不均匀，珠子的高度也低。解决方案：在将线状光束或扫描点光照射到焊接钢管的焊接区的焊道形状检测技术中，对由线性光束或扫描点亮光照射的焊接区域的表面上的成像进行成像，并且通过光学装置对钢管的横截面轮廓进行检测，在从横截面轮廓通过峰值搜索计算出胎圈的临时顶点的坐标之后，包括珠的顶点的一定宽度的范围以第一功能近似，而通过采用距离珠的临时顶点一定距离作为起点的位置作为参考，外部的一定宽度用第二函数近似，并且在第计算第一功能和第二功能的相交点作为珠的终点，计算珠形。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2007044710A Method for manufacturing uo-formed steel pipe having excellent low temperature cracking resistance, and uo-formed steel pipe 有权
标题翻译：用于制造具有优异的低温耐开裂性的U型成型钢管和U型成型钢管的方法
公开(公告)号：JP2007044710A
公开(公告)日：2007-02-22
申请号：JP2005229695
申请日：2005-08-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORIMOTO YUTAKA , TSURU EIJI , OKITA SHIGERU , ASAHI HITOSHI , HARA TAKUYA , TERADA YOSHIO , YOSHIDA TATSUYA , SHINADA KOICHI
IPC分类号： B21C37/08 , B23K9/23 , B23K101/06 , B23K103/04 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a UO-formed steel pipe, which method can prevent low temperature cracks caused in a weld metal in the seam welding portion of the UO-formed steel pipe without imposing any restrictions on the chemical composition of the weld metal, and further without lowering the efficiency of a manufacturing process.
SOLUTION: In the seam welding portion of the UO-formed steel pipe formed by a preceding seam welding operation and the following seam welding operation, the upper limit of the amount of diffusible hydrogen in the preceding seam welding portion is restricted, and also a tensile stress caused in the weld metal in the preceding seam welding is reduced by specifying a ratio W2/W1 so as to satisfy the following expressions: 0.6≤W2/W1≤0.8 or 1.2≤W2/W1≤2.5, where W1 shows the thickness of the weld metal in the preceding seam welding, and W2 shows the thickness of the weld metal in the following seam welding.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种UO形钢管的制造方法，该方法能够防止在UO型钢管的缝焊部分中的焊接金属中产生的低温裂纹，而不施加任何限制焊接金属的化学成分，并且不降低制造工艺的效率。解决方案：在通过先前的缝焊操作形成的UO形钢管的缝焊部分和随后的缝焊操作中，限制前面的缝焊部分中的扩散氢量的上限，并且通过规定比率W2 / W1，也可以减少前面的缝焊中的焊接金属的拉伸应力，满足下式：0.6≤W2/W1≤0.8或1.2≤W2/W1≤2.5，其中W1表示焊接金属在前面的缝焊中的厚度，W2表示焊接金属在下面的缝焊中的厚度。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006263814A High strength welded steel tube having excellent hydrogen embrittlement cracking chracteristic resistance of weld metal 有权
标题翻译：高强度焊接钢管，具有优异的抗压强度，耐磨损，耐磨性好
公开(公告)号：JP2006263814A
公开(公告)日：2006-10-05
申请号：JP2006025897
申请日：2006-02-02
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TSURU EIJI , HARA TAKUYA , ASAHI HITOSHI , MORIMOTO YUTAKA , TERADA YOSHIO , YOSHIDA TATSUYA , SHINADA KOICHI
IPC分类号： B21C37/08 , B21C37/30 , B23K9/00 , B23K9/23 , B23K31/00 , B23K35/30 , B23K101/06 , B23K103/04 , C21D9/08 , C21D9/50 , C22C38/00 , C22C38/58
CPC分类号： B23K31/027 , B21C37/08 , B23K33/006 , B23K2201/06 , C21D3/06 , C21D9/08 , C21D9/50 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/58 , Y10T29/5185
摘要： PROBLEM TO BE SOLVED: To provide a high-strength welded steel tube having excellent welded part hydrogen embrittlement cracking characteristic resistance and a method for manufacturing the same. SOLUTION: In the method for manufacturing the welded steel tube in which seam welding of a tensile strength of ≥850 Mpa is performed from an inner surface and an outer surface, then tube expanding or shrinking straightening are performed, the hydrogen concentration of the weld metal preceded on the inner and outer surfaces of the steel tube is ≤0.2 cc per 100 g at ordinary temperature before the straightening and the hydrogen concentration of the preceded weld metal is ≤0.2 cc per 100 g at ordinary temperature. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有优异的焊接部分氢脆裂纹特性电阻的高强度焊接钢管及其制造方法。解决方案：在从内表面和外表面进行拉伸强度≥850Mpa的接缝焊接的焊接钢管的制造方法中，进行管膨胀或收缩矫直，在矫正之前的常温下，在钢管的内表面和外表面之前的焊接金属在常温下为≤0.2cc/ 100g，并且在常温下先前焊接金属的氢浓度≤0.2cc/ 100g。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2009113093A U press machine, and method for adjusting position of locker die in u press machine 有权
标题翻译： U压机和调压机在U型压机中的位置的方法
公开(公告)号：JP2009113093A
公开(公告)日：2009-05-28
申请号：JP2007290519
申请日：2007-11-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YOSHIDA TATSUYA
IPC分类号： B21D5/01
摘要： PROBLEM TO BE SOLVED: To easily adjust the position of a locker die in a U press machine U-shaping a steel sheet. SOLUTION: The side confronted with a punch 21 with a bracket 23 sandwiched in the width direction of a steel sheet 2 includes a first movable body 26 movable along the length direction of the steel sheet 2. Further, the space between the bracket 23 and the first movable body 26 includes a second movable body 27 movable along the width direction of the steel sheet 2. The first movable body 26 includes a first movable body contact face being in contact with the second movable body 7, so as to be tilted with respect to the width direction and length direction of the steel sheet 2. The second movable body 27 includes a second movable body contact face being in contact with the first movable body contact face toward a direction along the first movable body contact face. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在U型机U型成型钢板中容易地调整更换模具的位置。解决方案：在具有夹在钢板2的宽度方向上的支架23的冲头21的侧面上包括沿着钢板2的长度方向可移动的第一移动体26.此外，支架之间的空间 23和第一可移动体26包括沿着钢板2的宽度方向可移动的第二移动体27.第一可移动体26包括与第二可移动体7接触的第一可移动体接触面，以便于相对于钢板2的宽度方向和长度方向倾斜。第二可移动体27包括与第一可移动体接触面朝向第一可移动体接触面的方向接触的第二可移动体接触面。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2007283356A Method of manufacturing uoe steel pipe 有权
标题翻译：制造UOE钢管的方法
公开(公告)号：JP2007283356A
公开(公告)日：2007-11-01
申请号：JP2006113387
申请日：2006-04-17
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUKAMI SHUNSUKE , MORIMOTO YUTAKA , MIYAZAKI HIDEKI , YOSHIDA TATSUYA
IPC分类号： B23K9/025 , B21C37/08 , B23K9/16 , B23K9/173 , B23K9/18 , B23K26/14 , B23K26/20 , B23K101/06 , B23K103/04
CPC分类号： B23K26/1429
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an innovative UOE steel pipe which is compatible with improvement in productivity and securement of toughness in a HAZ (heat-affected zone) by establishing a welding technique with small heat input and a small number of welding passes. SOLUTION: In the method of manufacturing the UOE steel pipe, when welding an X-groove, (a1) the groove angle on the outside of the X-groove is set to be 20 to 40 degrees, (a2) the outside of the X-groove is weld by a single pass using a composite heat source of a gas shielded arc and a laser with an output of 1 to 20 kW, thereafter, (b) on the inside of the X-groove is weld by a single pass by a submerged-arc welding, so as to complete the welding with two passes in total. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造创新的UOE钢管的方法，其通过建立具有小的热输入的焊接技术和HAZ（热影响区）中的生产率的提高和韧性的确保相容，焊接次数少。解决方案：在制造UOE钢管的方法中，当焊接X形槽时，（a1）将X槽的外侧的槽角设定为20〜40度，（a2）外侧的X槽的焊接是通过使用气体保护电弧的复合热源和1〜20kW的输出的激光器进行焊接，此后，（b）在X槽的内部焊接由单次通过埋弧焊，完成两次通过焊接。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007275953A Method for producing high strength welded steel tube 有权
标题翻译：生产高强度焊接钢管的方法
公开(公告)号：JP2007275953A
公开(公告)日：2007-10-25
申请号：JP2006107229
申请日：2006-04-10
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TSURU EIJI , AGATA ATSUSHI , YOSHIDA TATSUYA , TERASAWA TAKASHI , SUZUKI TAKESHI
IPC分类号： B21D3/14 , B21C37/08 , B23K35/30 , C22C38/00 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a high strength welded steel tube where the cracks of an expanded tube and thickness deviation in a seam weld zone produced upon tube expansion after seam welding can be prevented.
SOLUTION: In the method for producing a high strength welded steel tube, a steel plate having a tensile strength of ≥850 MPa is formed into a tubular shape, the edge parts of the steel plate are butted each other and are seam-welded, and thereafter, tube expansion is performed in such a manner that a region with a high friction coefficient applied in which the friction coefficient between the inside face of the steel tube 1 and each tube expansion segment 3 is ≥0.15 is controlled so as to be a range where the central angle of the steel tube is 25° to 180° with the seam weld zone 2 as the center in the circumferential direction, and the friction coefficient between the inside face of the steel tube and each segment in the part other than the region with a high friction coefficient applied is controlled to
摘要翻译：要解决的问题：提供一种高强度焊接钢管的制造方法，其中可以防止在焊缝之后在管膨胀时产生的发泡管的裂纹和在焊缝区域中的厚度偏差。解决方案：在高强度焊接钢管的制造方法中，将拉伸强度≥850MPa的钢板形成为筒状，钢板的边缘部彼此对接，焊接后，进行管膨胀，使得控制钢管1的内面与各管膨胀段3之间的摩擦系数≥0.15的高摩擦系数的区域，以便是以焊缝区域2为圆周方向为中心的钢管的中心角为25°〜180°的范围，钢管的内侧面与其他部分的各段之间的摩擦系数比施加摩擦系数高的区域控制在<0.15。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2009113092A U press machine, and method for adjusting locker die position in u press machine 有权
标题翻译： U压机，以及在U压机中调节锁定位置的方法
公开(公告)号：JP2009113092A
公开(公告)日：2009-05-28
申请号：JP2007290517
申请日：2007-11-08
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YOSHIDA TATSUYA
IPC分类号： B21D5/01
摘要： PROBLEM TO BE SOLVED: To provide a U press machine for U-shaping a steel sheet in which the operation of inserting a spacer between a bracket and a bed and the operation of taking out the spacer from the space between the bracket and the bed can be smoothly performed, and also the position of the locker die can easily be adjusted.
SOLUTION: The U press machine includes: a spacer supporting body 51 capable of supporting a plurality of spacers 30 at a position elevated from a bed 25; and an elevating/lowering body 52 capable of elevating/lowering relative to the spacer supporting body 51. The elevating/lowering body 52 lowers relative to the spacer supporting body 51, thus one or more spacers 30 among a plurality of the spacers 30 are collectively lowered relative to the spacer supporting body 51, and it elevates relative to the spacer supporting body 51, the lowered one or more spacers 51 are collectively elevated relative to the spacer supporting body 51.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种U型成型机，用于U型成型钢板，其中在支架和床之间插入间隔件的操作以及从支架和托架之间的空间中取出间隔件的操作床可以顺利地进行，并且也可以容易地调整储物柜的位置。解决方案：U压机包括：间隔件支撑体51，其能够在从床25升高的位置处支撑多个间隔件30; 以及能够相对于间隔件支撑体51升降的升降体52.升降体52相对于间隔件支撑体51下降，因此多个间隔件30中的一个或多个间隔件30被集体相对于间隔件支撑体51降低，并且相对于间隔件支撑体51升高，降低的一个或多个间隔件51相对于间隔件支撑体51共同升高。版权所有（C）2009，JPO＆INPIT

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