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11. 发明申请

US20150275339A1 HIGH-CARBON STEEL TUBE HAVING SUPERIOR COLD WORKABILITY, MACHINABILITY, AND HARDENABILITY AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：具有优越的冷加工性，机械性和可制造性及其制造方法的高碳钢管
公开(公告)号：US20150275339A1
公开(公告)日：2015-10-01
申请号：US14410264
申请日：2012-06-28
申请人： Masatoshi Aratani , Shunsuke Toyoda , Takatoshi Okabe , Yoshikazu Kawabata , Kenichi Iwazaki
发明人： Masatoshi Aratani , Shunsuke Toyoda , Takatoshi Okabe , Yoshikazu Kawabata , Kenichi Iwazaki
IPC分类号： C22C38/16 , C21D9/08 , C21D6/00 , C22C38/00 , C22C38/12 , C22C38/06 , C22C38/04 , C22C38/02 , C21D8/10 , C22C38/14
CPC分类号： C22C38/16 , B21B17/14 , B23K11/08 , B23K11/16 , B23K13/025 , B23K2101/06 , B23K2103/04 , C21D6/005 , C21D6/008 , C21D8/105 , C21D9/08 , C21D2211/003 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： A raw steel tube has a composition containing, by mass, 0.25% to 0.60% carbon, 0.01% to 2.0% silicon, 0.2% to 3.0% manganese, 0.001% to 0.1% aluminum, 0.001% to 0.05% phosphorus, 0.02% or less sulfur, 0.0010% to 0.0100% nitrogen, 0.0003% to 0.0050% boron, and 0.0001% to 0.0050% calcium, the balance being iron and incidental impurities. The raw steel tube is heated to and soaked at an Ac3 transformation point or higher and is then subjected to stretch-reducing rolling at a finishing temperature of rolling of 900° C. to (Ac1 transformation point) with a cumulative reduction in diameter of 30% to 70% within the temperature range of 900° C. or lower.
摘要翻译：生钢管具有以质量计含有0.25％至0.60％的碳，0.01％至2.0％的硅，0.2％至3.0％的锰，0.001％至0.1％的铝，0.001％至0.05％的磷，0.02％或较少的硫，0.0010％至0.0100％的氮，0.0003％至0.0050％的硼和0.0001％至0.0050％的钙，余量为铁和附带的杂质。将粗钢管在Ac 3相变点以上加热浸渍，然后在900℃〜（Ac1相变点）的轧制终轧温度下进行拉伸缩径轧制，累积直径减小30 在900℃以下的温度范围内为70％以下。

12. 发明申请

US20130126036A1 ELECTRIC RESISTANCE WELDED STEEL PIPE WITH EXCELLENT TORSION FATIGUE RESISTANCE AND METHOD FOR MANUFACTURING THE SAME 审中-公开
标题翻译：具有优异耐扭矩耐电弧性的电阻焊钢管及其制造方法
公开(公告)号：US20130126036A1
公开(公告)日：2013-05-23
申请号：US13699190
申请日：2011-05-23
申请人： Masatoshi Aratani , Yoshikazu Kawabata , Takatoshi Okabe , Yukinori Iizuka , Hiromichi Hori , Gunji Makio , Kenichi Iwazaki
发明人： Masatoshi Aratani , Yoshikazu Kawabata , Takatoshi Okabe , Yukinori Iizuka , Hiromichi Hori , Gunji Makio , Kenichi Iwazaki
IPC分类号： F16L9/02 , B23K9/00
CPC分类号： F16L9/02 , B23K9/00 , B23K11/0873 , C21D9/08 , C21D9/50 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14
摘要： A base material portion of an electric resistance welded steel pipe has a composition including C at 0.25 to 0.55%, Si at 0.01 to 1.0%, Mn at 0.2 to 3.0%, Al at not more than 0.1% and N at 0.0010 to 0.0100%, with the balance being represented by Fe and inevitable impurities, and the weld defect area, which is a projected area of a weld defect in an electric resistance weld zone, is less than 40000 μm2.
摘要翻译：电阻焊钢管的基材部分具有C为0.25〜0.55％，Si为0.01〜1.0％，Mn为0.2〜3.0％，Al为0.1％以下，N为0.0010〜0.0100％，余量由Fe和不可避免的杂质表示，作为电阻焊接区域的焊接缺陷的投影面积的焊接缺陷面积小于40000mum2。

13. 发明授权

US08328957B2 Electric resistance welded steel pipe with excellent weld toughness for line pipe 有权
标题翻译：电阻焊钢管，管线管焊接韧性好
公开(公告)号：US08328957B2
公开(公告)日：2012-12-11
申请号：US12449749
申请日：2007-05-18
申请人： Hiroyasu Yokoyama , Kazuhito Kenmochi , Takatoshi Okabe , Yukinori Iizuka
发明人： Hiroyasu Yokoyama , Kazuhito Kenmochi , Takatoshi Okabe , Yukinori Iizuka
IPC分类号： C22C38/02 , C22C38/04
CPC分类号： C22C38/02 , C22C38/04
摘要： In an electric resistance welded steel pipe with excellent weld toughness for a line pipe, the area fraction of minute defects each having a maximum length of less than 50 μm in a projection plane of an electric resistance welded seam is in the range of 0.000006 to 0.026, and the absorbed energy at −40° C. measured by a method for an impact test of metallic materials is 315 J or more.
摘要翻译：在线管的焊接韧性优异的电阻焊钢管中，在电阻焊缝的投影面中，最大长度小于50μm的微小缺陷的面积分数在0.000006〜0.026的范围内，通过金属材料的冲击试验方法测定的-40℃下的吸收能为315J以上。

14. 发明授权

US08296932B2 Manufacturing equipment for electric resistance welding pipes having excellent characterization for welded seam 有权
标题翻译：用于电焊焊接管的制造设备，具有优异的焊缝特性
公开(公告)号：US08296932B2
公开(公告)日：2012-10-30
申请号：US11992896
申请日：2006-11-09
申请人： Kazuhito Kenmochi , Takatoshi Okabe , Hiroyasu Yokoyama , Hiroyuki Shirosawa , Tetsuro Sawaki , Yuji Sugimoto , Tomohiro Inoue , Tatsuo Koide
发明人： Kazuhito Kenmochi , Takatoshi Okabe , Hiroyasu Yokoyama , Hiroyuki Shirosawa , Tetsuro Sawaki , Yuji Sugimoto , Tomohiro Inoue , Tatsuo Koide
IPC分类号： B23P19/00 , B21C37/08
CPC分类号： B23K33/006 , B21C37/083 , B23K11/062 , B23K2101/10 , Y10T29/49968 , Y10T29/53
摘要： Manufacturing equipment of electric resistance welding pipes having excellent characterization of welded seams, includes an apparatus that supplies a strip, an apparatus that reforms a shape, an apparatus that performs roll forming, an induction heater, and a contacting apparatus of strip edges by pressing, and having a finpass forming apparatus incorporating a fin having at least two stages of tapering in a middle portion of the roll forming, wherein tapering of the strip immediately before electric resistance welding is conducted such that an angle from a surface of a strip edge toward a vertical direction is in a range of 25 degrees to 50 degrees, and length of a perpendicular angle from a starting position to an end position of the tapering at one side is 20% to 45% of strip thickness, and by shaping the tapering with a fin, having at least two stages of tapering, incorporated in a finpass forming end stand.
摘要翻译：具有优异的焊缝特性的电阻焊管的制造设备包括提供带材的装置，改造形状的装置，进行辊压成型的装置，感应加热器和带状边缘的接触装置，并且具有翅片形成装置，其包括在辊成形的中间部分中具有至少两个渐缩阶段的翅片，其中在进行电阻焊接之前使钢带逐渐变细，使得从带材边缘的表面朝向垂直方向在25度至50度的范围内，并且从一端的锥形的起始位置到终端位置的垂直角的长度为带厚度的20％至45％，并且通过使用翅片，具有至少两个渐缩阶段，并入翅片形成端支架中。

15. 发明申请

US20100032048A1 ELECTRIC RESISTANCE WELDED STEEL PIPE WITH EXCELLENT WELD TOUGHNESS FOR LINE PIPE 有权
标题翻译：用于线管的电阻焊接韧性电阻焊钢管
公开(公告)号：US20100032048A1
公开(公告)日：2010-02-11
申请号：US12449749
申请日：2007-05-18
申请人： Hiroyasu Yokoyama , Kazuhito Kenmochi , Takatoshi Okabe
发明人： Hiroyasu Yokoyama , Kazuhito Kenmochi , Takatoshi Okabe
IPC分类号： F16L9/14
CPC分类号： C22C38/02 , C22C38/04
摘要： In an electric resistance welded steel pipe with excellent weld toughness for a line pipe, the area fraction of minute defects each having a maximum length of less than 50 μm in a projection plane of an electric resistance welded seam is in the range of 0.035 to 0.000006, and the absorbed energy at −40° C. measured by a method for an impact test of metallic materials is 100 J or more.
摘要翻译：在线管的焊接韧性优异的电阻焊钢管中，在电阻焊缝的投影面中，最大长度小于50μm的微小缺陷的面积分数在0.035〜0.000006的范围内，通过金属材料的冲击试验方法测定的-40℃下的吸收能量为100J以上。

16. 发明申请

US20080105731A1 Measurement method and device for bead cutting shape in electric resistance welded pipes 有权
标题翻译：电阻焊管中焊道切割形状的测量方法和装置
公开(公告)号：US20080105731A1
公开(公告)日：2008-05-08
申请号：US11802133
申请日：2007-05-21
申请人： Toshifumi Kodama , Taira Suzuki , Akira Torao , Yasumasa Tekemura , Takatoshi Okabe
发明人： Toshifumi Kodama , Taira Suzuki , Akira Torao , Yasumasa Tekemura , Takatoshi Okabe
IPC分类号： G01B5/02 , B23K26/24
CPC分类号： B23K11/252 , B21C37/0811 , B21C51/00 , G01B11/24
摘要： To precisely measure bead cutting shapes of electric resistance welded pipes without being affected by difference in luminance level between cut and uncut portions in optical cutting images, an image is obtained by overlaying an optical cutting image with the optical cutting image subjected to thinning processing. A profile of the welded pipe is approximated with a quadratic function and a region containing the bead apex coordinates is identified as the bead. Shape data of the pipe surface at the portion corresponding to the bead portion is obtained from the preset left and right boundaries of the bead portion and the apex position of the separately-calculated bead portion, and bead width, height, slope angle, and unevenness at the left and right boundaries between the bead portion and base pipe portion, are each calculated, based on the left and right bead shape approximation functions and base pipe shape approximation function.
摘要翻译：为了精确地测量电阻焊管的焊道切割形状，不受光学切割图像中的切割部分和未切割部分之间的亮度水平差的影响，通过用经过稀化处理的光学切割图像重叠光学切割图像来获得图像。焊接管的轮廓用二次函数近似，并且将包含胎圈三角坐标的区域识别为胎圈。从胎圈部的预设左右边界和分开计算出的胎圈部的顶点位置，胎圈宽度，高度，倾斜角度和不平坦部分获得与胎圈部对应的部分处的管表面的形状数据基于左，右珠形近似函数和基管形状近似函数，分别计算胎圈部和基管部之间的左右边界。

17. 发明授权

US07236255B2 Method and instrument for measuring bead cutting shape of electric welded tube 有权
标题翻译：电焊管胎圈切割形状测量方法及仪器
公开(公告)号：US07236255B2
公开(公告)日：2007-06-26
申请号：US10507350
申请日：2003-04-23
申请人： Toshifumi Kodama , Taira Suzuki , Akira Torao , Yasumasa Tekemura , Takatoshi Okabe
发明人： Toshifumi Kodama , Taira Suzuki , Akira Torao , Yasumasa Tekemura , Takatoshi Okabe
IPC分类号： G01B5/24 , B23K26/26
CPC分类号： B23K11/252 , B21C37/0811 , B21C51/00 , G01B11/24
摘要： To precisely measure bead cutting shapes of electric resistance welded pipes without being affected by difference in luminance level between cut and uncut portions in optical cutting images, an image is obtained by overlaying an optical cutting image with the optical cutting image subjected to thinning processing. A profile of the welded pipe is approximated with a quadratic function and a region containing the bead apex coordinates is identified as the bead. Shape data of the pipe surface at the portion corresponding to the bead portion is obtained from the preset left and right boundaries of the bead portion and the apex position of the separately-calculated bead portion, and bead width, height, slope angle, and unevenness at the left and right boundaries between the bead portion and base pipe portion, are each calculated, based on the left and right bead shape approximation functions and base pipe shape approximation function.
摘要翻译：为了精确地测量电阻焊管的焊道切割形状，不受光学切割图像中的切割部分和未切割部分之间的亮度水平差的影响，通过用经过稀化处理的光学切割图像重叠光学切割图像来获得图像。焊接管的轮廓用二次函数近似，并且将包含胎圈三角坐标的区域识别为胎圈。从胎圈部的预设左右边界和分开计算出的胎圈部的顶点位置，胎圈宽度，高度，倾斜角度和不平坦部分获得与胎圈部对应的部分处的管表面的形状数据基于左，右珠形近似函数和基管形状近似函数，分别计算胎圈部和基管部之间的左右边界。

18. 发明申请

US20080218768A1 MEASUREMENT METHOD AND DEVICE FOR BEAD CUTTING SHAPE IN ELECTRIC RESISTANCE WELDED PIPES 有权
标题翻译：用于电阻焊管中的珠切割形状的测量方法和装置
公开(公告)号：US20080218768A1
公开(公告)日：2008-09-11
申请号：US12113440
申请日：2008-05-01
申请人： Toshifumi Kodama , Taira Suzuki , Akira Torao , Yasumasa Tekemura , Takatoshi Okabe
发明人： Toshifumi Kodama , Taira Suzuki , Akira Torao , Yasumasa Tekemura , Takatoshi Okabe
IPC分类号： G01B11/24
CPC分类号： B23K11/252 , B21C37/0811 , B21C51/00 , G01B11/24
摘要： To precisely measure bead cutting shapes of electric resistance welded pipes without being affected by difference in luminance level between cut and uncut portions in optical cutting images, an image is obtained by overlaying an optical cutting image with the optical cutting image subjected to thinning processing. A profile of the welded pipe is approximated with a quadratic function and a region containing the bead apex coordinates is identified as the bead. Shape data of the pipe surface at the portion corresponding to the bead portion is obtained from the preset left and right boundaries of the bead portion and the apex position of the separately-calculated bead portion, and bead width, height, slope angle, and unevenness at the left and right boundaries between the bead portion and base pipe portion, are each calculated, based on the left and right bead shape approximation functions and base pipe shape approximation function.
摘要翻译：为了精确地测量电阻焊管的焊道切割形状，不受光学切割图像中的切割部分和未切割部分之间的亮度水平差的影响，通过用经过稀化处理的光学切割图像重叠光学切割图像来获得图像。焊接管的轮廓用二次函数近似，并且将包含胎圈三角坐标的区域识别为胎圈。从胎圈部的预设左右边界和分开计算出的胎圈部的顶点位置，胎圈宽度，高度，倾斜角度和不平坦部分获得与胎圈部对应的部分处的管表面的形状数据基于左，右珠形近似函数和基管形状近似函数，分别计算胎圈部和基管部之间的左右边界。

19. 发明授权

US08912462B2 Method of manufacturing electric resistance welding pipes having excellent characterization of welded seams 有权
标题翻译：制造具有优异焊接特征的电阻焊管的方法
公开(公告)号：US08912462B2
公开(公告)日：2014-12-16
申请号：US11992916
申请日：2006-11-09
申请人： Kazuhito Kenmochi , Takatoshi Okabe , Hiroyasu Yokoyama , Yuji Sugimoto , Yoshifumi Fujioka , Kei Sakata , Tomohiro Inoue , Hiroyuki Shirosawa , Motoaki Egi , Yasuo Nishida , Muneyoshi Murakami
发明人： Kazuhito Kenmochi , Takatoshi Okabe , Hiroyasu Yokoyama , Yuji Sugimoto , Yoshifumi Fujioka , Kei Sakata , Tomohiro Inoue , Hiroyuki Shirosawa , Motoaki Egi , Yasuo Nishida , Muneyoshi Murakami
IPC分类号： B23K31/12 , B21C37/08 , B21C37/083
CPC分类号： B21C37/0822 , B21C37/0826 , B21C37/083 , B23K31/12 , B23K2101/06
摘要： A method of efficiently manufacturing electric resistance welding pipes having excellent characterization of welded seams is provided, by which each lateral edge of a rounded strip immediately before electric resistance welding is securely shaped with desired tapering flexibly in response to change in strip thickness, so that welding quality may be kept to be excellent. A method of manufacturing electric resistance welding pipes, in which a strip is subjected to forming, then edges thereof are formed to substantially face each other, and then the edges are subjected to electric resistance welding to form a pipe, wherein an edge and an edge opposed thereto at one of an upper-surface side and a lower-surface side of the strip are shaped with tapering before the forming by means of cutting or shaving, or finpass forming.
摘要翻译：提供了一种有效地制造具有优异的焊缝表征的电阻焊接管的方法，通过该方法，在电阻焊接之前的圆形条的每个侧边缘根据条带厚度的变化灵活地成形为期望的锥形，从而焊接质量可能保持优异。一种制造电阻焊接管的方法，其中条带被成形，然后其边缘形成为基本相对，然后边缘进行电阻焊接以形成管，其中边缘和边缘在条带的上表面侧和下表面侧之一处与之形成相反的方式，在通过切割或刮削进行成形之前成形为锥形，或者通过成形。

20. 发明授权

US09000320B2 Method of manufacturing electric resistance welding pipe having excellent characterization of welded seam 有权
标题翻译：制造具有优异焊缝特性的电阻焊管的方法
公开(公告)号：US09000320B2
公开(公告)日：2015-04-07
申请号：US11992918
申请日：2006-11-09
申请人： Kazuhito Kenmochi , Takatoshi Okabe , Hiroyasu Yokoyama , Yuji Sugimoto , Muneyoshi Murakami , Osamu Shiotani , Nobuyuki Matsuo , Tomohiro Inoue , Kenichi Iwazaki
发明人： Kazuhito Kenmochi , Takatoshi Okabe , Hiroyasu Yokoyama , Yuji Sugimoto , Muneyoshi Murakami , Osamu Shiotani , Nobuyuki Matsuo , Tomohiro Inoue , Kenichi Iwazaki
IPC分类号： B23K13/00 , B21C37/08 , B21C37/083 , B23K11/06 , B23K33/00
CPC分类号： B21C37/0822 , B21C37/0826 , B21C37/083 , B23K11/062 , B23K33/006 , B23K2101/06
摘要： A method of manufacturing an electric resistance welding pipe is provided in which a lateral edge shape is made to be an appropriate shape immediately before electric resistance welding is performed, whereby penetrators are securely removed during the electric resistance welding and, consequently, an electric resistance welding pipe having excellent characterization of welded seam can be obtained. A fin shape in finpass forming is printed to lateral edges of a strip, whereby the lateral edges of the strip are shaped with predetermined tapering.
摘要翻译：提供了一种制造电阻焊接管的方法，其中在电阻焊接之前立即将侧边缘形状制成适当的形状，从而在电阻焊接期间可靠地移除穿透器，因此，电阻焊接可以获得具有优异焊缝特性的管。将鳍状成形中的翅片形状印刷到条带的侧边缘，由此带材的侧边缘成形为具有预定的锥形。

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