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111. 发明专利

JP4946731B2 Method of manufacturing the electric resistance welded pipe excellent in buckling resistance capability 有权
公开(公告)号：JP4946731B2
公开(公告)日：2012-06-06
申请号：JP2007219837
申请日：2007-08-27
申请人： Jfeスチール株式会社
发明人：一仁剣持 , 坂田　　敬 , 能知岡部 , 泰康横山
IPC分类号： B21C37/08

112. 发明专利

JP4935703B2 Method for producing a good seam welded steel pipe toughness of the weld 有权
公开(公告)号：JP4935703B2
公开(公告)日：2012-05-23
申请号：JP2008028326
申请日：2008-02-08
申请人： Jfeスチール株式会社
发明人：智弘井上 , 一仁剣持 , 重人坂下 , 泰康横山 , 大二郎湯浅 , 幸理飯塚
IPC分类号： B21C37/08 , B21C51/00 , B23K13/00 , B23K13/08

113. 发明专利

JPWO2010052926A1 超高強度ラインパイプ用鋼板および鋼管の製造方法有权
公开(公告)号：JPWO2010052926A1
公开(公告)日：2012-04-05
申请号：JP2010536699
申请日：2009-11-06
申请人：新日本製鐵株式会社
发明人：原　卓也 , 卓也原 , 泰志藤城 , 泰志藤城 , 寺田　好男 , 好男寺田 , 篠原　康浩 , 康浩篠原 , 篤史清水 , 篤史清水 , 悠内田 , 悠内田
IPC分类号： C21D8/02 , B21B1/38 , B21B3/00 , B21C37/08 , B23K9/025 , B23K9/18 , B23K9/23 , B23K31/00 , C21D8/10 , C21D9/08 , C21D9/50 , C22C38/00 , C22C38/14 , C22C38/58
CPC分类号： B23K9/18 , B23K9/0253 , C22C38/04 , C22C38/12 , F16L9/02
摘要：この超高強度ラインパイプ用鋼板の製造方法では、質量%で、C:0.03〜0.08%、Si:0.01〜0.50%、Mn:1.5〜2.5%、P:0.01%以下、S:0.0030%以下、Nb:0.0001〜0.20%、Al:0.0005〜0.03%、Ti:0.003〜0.030%、B:0.0003%未満、N:0.0010〜0.0050%、O:0.0050%以下を含み、残部が鉄および不可避的不純物からなる鋼を溶製し;この鋼を鋳造して鋼片とし;この鋼片に熱間圧延を施して鋼板とし;MS点より高い所定の温度になるまで水冷を行った後、復熱を行う処理を少なくとも1回以上繰り返して、前記鋼板の表面を冷却し;最終水冷を行って、前記鋼板の表面をMS点以下の温度まで冷却する。

114. 发明专利

JP4903635B2 uoe steel pipe for line pipe superior in deformability 有权
公开(公告)号：JP4903635B2
公开(公告)日：2012-03-28
申请号：JP2007160136
申请日：2007-06-18
申请人：新日本製鐵株式会社
发明人：卓也原 , 均朝日 , 英司津留 , 康浩篠原
IPC分类号： B21C37/08

115. 发明专利

JP2012040581A Electric resistance welded tube, manufacturing method of electric resistance welded tube, and manufacturing method of tubular product 有权
标题翻译：电阻焊管，电阻焊管的制造方法和管状产品的制造方法
公开(公告)号：JP2012040581A
公开(公告)日：2012-03-01
申请号：JP2010182284
申请日：2010-08-17
申请人： Nittetsu Steel Pipe Co Ltd , 日鉄鋼管株式会社
发明人： ICHIKAWA YOSHIHISA , IMAMURA KENJI , SHUDO MIKIO
IPC分类号： B21C37/08 , B21C51/00
摘要： PROBLEM TO BE SOLVED: To provide an electric resistance welded tube capable of recognizing electric resistance welded part even after drawing the tube, and a method for manufacturing the tube.SOLUTION: The end parts of a roll-formed steel strip are electric-resistance-welded, and a bead removed from the electric resistance welded part by cutting, and a rolling tool 22 is pressed against a cutting surface 82 after bead-removing, to form an irregularity-worked part 83, in an irregularity-working process. Thereby, even after drawing the tube, the irregularity-worked part remains, so that the irregularity-worked part is visually recognized, and the position of the electric resistance welded part of the electric resistance welded tube after drawing the tube can be recognized.
摘要翻译：要解决的问题：即使在拉管之后也能够提供能够识别电阻焊接部分的电阻焊管，以及制造该管的方法。解决方案：轧制钢带的端部是电阻焊接的，并且通过切割从电阻焊接部分移除的焊道，并且轧制工具22在焊道之后被压靠在切割表面82上，在违规工作过程中移除，形成违规行为的部分83。因此，即使在拉制管之后，仍然保持凹凸加工部分，从而可视觉地识别不规则加工部分，并且可以识别拉伸管之后的电阻焊管的电阻焊接部分的位置。版权所有（C）2012，JPO＆INPIT

116. 发明专利

JP4883429B2 Method and apparatus for manufacturing a steel pipe Uoe 有权
标题翻译：空值
公开(公告)号：JP4883429B2
公开(公告)日：2012-02-22
申请号：JP2011513777
申请日：2011-03-25
申请人：住友金属工業株式会社
发明人：靖渡辺
IPC分类号： B21C37/08 , B21C51/00
CPC分类号： B23K26/282 , B21C37/0826 , B21C51/00 , B23K31/027 , B23K33/006 , B23K2201/10 , B23K2203/04 , G01B11/245 , G01B11/2522 , Y10T29/49826

117. 发明专利

JP2012006059A Device and method for detecting bead position in weld zone of uo steel pipe 有权
标题翻译：用于检测钢管焊接区中的珠柱位置的装置和方法
公开(公告)号：JP2012006059A
公开(公告)日：2012-01-12
申请号：JP2010145994
申请日：2010-06-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUFUJI YASUHIRO
IPC分类号： B23K31/00 , B21C37/08 , G01B11/00
摘要： PROBLEM TO BE SOLVED: To provide a device for detecting a bead position in the weld zone of a UO steel pipe, with which the bead position in the weld zone of the UO steel pipe is detected at low cost and precisely.SOLUTION: The positions on the inlet side and the outlet side of the bead 2 in the weld zone are determined from the change of the output of the laser displacement gages 9 since the outputs of a pair of two laser displacement gages 9 change before and after the bead 2 in the weld zone of the UO steel pipe 1 rides across a touch roller 6 when rotating the UO steel pipe 1 in the peripheral direction with turn rolls 3 in a state that the touch roller 6 arranged right under the axial line of the UO steel pipe 1 abuts on the outer peripheral surface of the UO steel pipe 1, and the middle of them is calculated as the position of the bead 2 in the weld zone. Since the output variation of each laser displacement gage 9 accompanying the vibration in the horizontal direction of the UO steel pipe 1 under rotation is canceled by adding the outputs of two laser displacement gages 9 at this time, even a small bead 2 in the weld zone is precisely detected.
摘要翻译：要解决的问题：提供一种用于检测UO钢管的焊接区域中的焊道位置的装置，利用该装置以低成本和精确地检测UO钢管的焊接区域中的焊道位置。解决方案：焊接区域中焊道2的入口侧和出口侧的位置由激光位移计9的输出的变化确定，因为一对两个激光位移计9的输出改变在UO钢管1的焊接区域中的焊道2之前和之后，当在接触辊6正下方布置的状态下旋转UO钢管1沿周向方向转向滚轮3时，跨过接触辊6 UO钢管1的线与UO钢管1的外周面抵接，其中间被计算为焊道2中的焊道2的位置。由于伴随UO钢管1的水平方向的振动的每个激光位移计量器9的输出变化在此时通过加上两个激光位移计9的输出而消除，所以即使焊接区中的小珠2 被精确检测。版权所有（C）2012，JPO＆INPIT

119. 发明专利

JP4811166B2 Method of manufacturing an ultra-high strength welded steel pipe that exceeds the tensile strength 800MPa 有权
公开(公告)号：JP4811166B2
公开(公告)日：2011-11-09
申请号：JP2006200516
申请日：2006-07-24
申请人： Jfeスチール株式会社
发明人：光浩岡津 , 純二嶋村 , 信行石川
IPC分类号： B23K26/20 , B21C37/08 , B23K9/025 , B23K9/16 , B23K9/18 , B23K9/23 , B23K35/30 , B23K101/06 , B23K103/04 , C21D8/02 , C21D8/10 , C22C38/00 , C22C38/58
CPC分类号： B23K26/1429
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an ultrahigh-strength welded steel pipe having a tensile strength exceeding 800 MPa and suitable as the one for transporting natural gas and crude oil. SOLUTION: A steel sheet having a composition comprising, by mass, 0.03 to 0.12% C, ≤0.5% Si, 1.8 to 3.0% Mn, ≤0.010% P, ≤0.002% S, 0.01 to 0.08% Al, ≤0.7% Cu, 0.01 to 3.0% Ni, ≤1.0% Cr, ≤1.0% Mo, 0.01 to 0.08% Nb, ≤0.10% V, 0.005 to 0.025% Ti, ≤0.005% B, ≤0.01% Ca, ≤0.02% REM, ≤0.03% Zr, ≤0.01% Mg, 0.001 to 0.006% N and ≤0.22 PcmB, and the balance Fe with inevitable impurities is cold-worked so as to be formed into a pipe shape, and thereafter, the butted parts are welded by a hybrid welding process in which a laser using a CO 2 gas shield and gas shield arc welding using an Ar-CO 2 gas shield are combined. COPYRIGHT: (C)2008,JPO&INPIT

120. 发明专利

JP2011206800A Press forming method and press forming machine for circular steel pipe pillar 审中-公开
标题翻译：压力成型方法和压力成型机用于圆管钢管
公开(公告)号：JP2011206800A
公开(公告)日：2011-10-20
申请号：JP2010075918
申请日：2010-03-29
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： YAMAMOTO SHINICHI , IWATANI JIRO
IPC分类号： B21D5/01 , B21C37/08
摘要： PROBLEM TO BE SOLVED: To suppress the generation of breaking when bending a tabular forming plate in a circular arc using a press forming method in a press forming machine.SOLUTION: The press forming machine 2 for a circular steel pipe pillar is prepared with two roll dies 3 and 3 arranged parallel in a horizontal direction and spaced from each other and a punch 4 vertically movable between the two roll dies 3 and 3. The press forming machine 2 forms a plate W to be formed into a circular tube shape by lowering the punch 4 toward the forming plate W put on the two roll dies 3 and 3. The punch 4 has two downward protrusion lines 5 extending parallel to the axial centers of the roll dies 3 and spaced from each other in the horizontal direction.
摘要翻译：要解决的问题：为了抑制在压制成形机中使用冲压成形法在圆弧中弯曲成形板时产生断裂。解决方案：用于圆钢管柱的冲压成型机2由两辊模具3和3在水平方向上平行布置并且彼此间隔开，并且可在两个辊模3和3之间垂直移动的冲头4。冲压成形机2通过降低将冲头4冲向放置在两个辊模3和3上的成型板W.冲头4具有平行于辊模3的轴向中心延伸并沿水平方向彼此间隔开的两个向下突出的线5。

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