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    Production methods, as well as welded joints and a method of manufacturing a seamless bent pipe
    61.
    发明专利
    Production methods, as well as welded joints and a method of manufacturing a seamless bent pipe 有权

    公开(公告)号：JP4941054B2

    公开(公告)日：2012-05-30

    申请号：JP2007090399

    申请日：2007-03-30

    Applicant: 住友金属工業株式会社

    Inventor： 勤 有田

    IPC: F16L43/00 ,  B21D7/00 ,  B21D51/16

    CPC classification number: B21C37/06 ,  B21D9/00 ,  B21D9/18 ,  B23K31/022 ,  B23K2201/10 ,  Y10T29/49391 ,  Y10T29/49428

    Abstract: Provided are a seamless bent pipe constituted by a bent section and straight pipe sections on both ends of the bent section, with the inside diameter at each pipe end portion being larger than the inside diameter of the bent section, and a welded component comprising a seamless bent pipe and a seamless straight pipe at one or each end of the seamless bent pipe, with the end of the seamless straight pipe to be welded to one or each end of the seamless bent pipe having the same inside diameter as the inside diameter of the seamless bent pipe, as well as methods of manufacturing them. As a result, elements suited for use in pipelines can be obtained, without unnecessarily increasing the wall thickness of the seamless bent pipe and without internal machining of the pipe end portions of the seamless bent pipe after the manufacturing thereof.

    レーザ加工方法およびオイルリング用線材
    63.
    发明专利
    レーザ加工方法およびオイルリング用線材 有权

    公开(公告)号：JPWO2008153028A1

    公开(公告)日：2010-08-26

    申请号：JP2009519260

    申请日：2008-06-10

    Applicant: 日立金属株式会社

    Inventor： 正典 落合 ,  正典 落合 ,  佐々木　淳 ,  淳 佐々木 ,  佐藤　智之 ,  智之 佐藤

    IPC: B23K26/16 ,  B23K26/14

    CPC classification number: B23K26/14 ,  B23K26/0075 ,  B23K26/16 ,  B23K2201/10 ,  B23K2203/04

    Abstract: エッジを有する部材のレーザ加工方法を開示する。この方法では、エッジを有し、エッジ領域に突起物が形成されている部材の、前記エッジを挟んで交差する二つの面のうち、前記突起物が存在する一方の面と前記エッジ領域にレーザ光を照射して、前記突起物および前記エッジ領域を溶融させ、生じた溶融体を他方の面に移動させる。レーザ加工方法を好適にオイルリングに適用できる。オイルリングは、左右のレール部と該レール部を連結するウェブ部とを有する。ウェブ部は、溶融によって形成された複数の貫通孔を有し、該貫通孔の壁面に再溶融凝固物が付着しており、ウェブ部の外表面には、溶融凝固物としての突起部が存在しない。

    Residual stress improving apparatus for piping
    65.
    发明专利
    Residual stress improving apparatus for piping 有权

    公开(公告)号：JP4209366B2

    公开(公告)日：2009-01-14

    申请号：JP2004222223

    申请日：2004-07-29

    Applicant: 三菱重工業株式会社

    Inventor： 秀峰 坪田 ,  高裕 太田 ,  憲昭 杉本 ,  彰司 櫛本 ,  孝 石出 ,  賢二 西川 ,  崇 赤羽

    IPC: C21D9/08 ,  B23K26/00 ,  B23K26/08 ,  B23K31/00 ,  B23K101/06 ,  C21D1/34 ,  C21D9/50

    CPC classification number: B23K26/0066 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0869 ,  B23K26/103 ,  B23K2201/06 ,  B23K2201/10

    Abstract: A residual stress improving apparatus for piping, which can heat an outer peripheral surface of piping to reduce (including eliminate) the residual stress of the piping, whose apparatus configuration is relatively compact, and which can also heat the outer peripheral surface of a bending pipe portion, is provided. For this purpose, the apparatus has a laser head portion 6, and circumferential direction moving means composed of a ring rail 3 and a rotational travel bogie 5. Further, the apparatus may include reflection direction adjusting means for adjusting the reflection direction of laser light so that the laser light reflected by the outer peripheral surface of the piping does not return to the laser head, delivery direction adjusting means for adjusting the delivery direction of the laser light so that the outer peripheral surface of the bending pipe portion located forwardly, in the pipe axis direction, of the laser head is irradiated with the laser light, pipe axis direction moving means for moving the laser headportion in the pipe axis direction, output adjusting means for adjusting the output of the laser light so that the irradiation intensity on the outer peripheral surface of the bending pipe portion becomes uniform, and pivoting means capable of bringing the forward side, in the pipe axis direction, of the laser head portion close to and away from the outer peripheral surface of the bending pipe portion.

    Apparatus for improving residual stress in piping
    66.
    发明专利
    Apparatus for improving residual stress in piping 有权
    改善管道残余应力的装置

    公开(公告)号：JP2006037199A

    公开(公告)日：2006-02-09

    申请号：JP2004222223

    申请日：2004-07-29

    Applicant: Mitsubishi Heavy Ind Ltd ,  三菱重工業株式会社

    Inventor： AKAHA TAKASHI ,  TSUBOTA SHUHO ,  NISHIKAWA KENJI ,  SUGIMOTO KENSHO ,  KUSHIMOTO SHOJI ,  ISHIDE TAKASHI ,  OTA TAKAHIRO

    IPC: C21D9/08 ,  B23K26/00 ,  B23K26/08 ,  B23K31/00 ,  B23K101/06 ,  C21D1/34 ,  C21D9/50

    CPC classification number: B23K26/0066 ,  B23K26/067 ,  B23K26/0676 ,  B23K26/0869 ,  B23K26/103 ,  B23K2201/06 ,  B23K2201/10

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for improving residual stress in piping, wherein the residual stress in the piping can be reduced (or removed) by heating the outer peripheral surface of the piping and the constitution is comparatively compacted, and the outer peripheral surface of a bending pipe part can be heated. SOLUTION: This apparatus is provided with a laser beam head part 6 and a circular direction moving means composed of a ring rail 3 and a rotation running carriage 5. Further, it can be provided with; a reflecting direction adjusting means for adjusting the reflecting direction of the laser beam so as not to return back the laser beam reflected on the outer peripheral surface of the piping to the laser beam head; an emitting direction adjusting means for adjusting the emitting direction of the laser beam so as to emit the laser beam to the outer peripheral surface of the bending pipe part positioned at the front part in the pipe axial direction from the laser beam head; a pipe axial direction moving means for moving the laser beam head part in the pipe axial direction; an output adjusting means for adjusting the output of the laser beam so as to make uniform the emitting strength on the outer peripheral surface of the bending pipe part; and a rotating means for allowing the front part side in the pipe axial direction of the laser beam head part to be approached to and separated from the outer peripheral surface of the bending pipe part. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种用于改善管道中的残余应力的装置，其中可以通过加热管道的外周面来减少（或去除）管道中的残余应力，并且构造相对紧凑，并且 可以加热弯管部的外周面。 解决方案：该装置设置有激光束头部6和由环形轨道3和旋转行驶台5构成的圆形方向移动装置。此外，还可以设置有： 反射方向调节装置，用于调节激光束的反射方向，以便不将反射在管道的外周表面上的激光束返回到激光束头; 发射方向调节装置，用于调节激光束的发射方向，以便将激光束从位于激光束头的管轴向前部的弯曲管部分的外周表面发射; 管轴方向移动装置，用于沿管轴方向移动激光束头部; 输出调节装置，用于调节激光束的输出以使弯曲管部分的外周表面上的发射强度均匀; 以及用于使激光束头部的管轴方向上的前部侧接近弯曲管部的外周面并与其分离的旋转装置。 版权所有（C）2006，JPO＆NCIPI

    Manufacturing apparatus of spiral pipe
    68.
    发明专利
    Manufacturing apparatus of spiral pipe 失效
    螺旋管制造设备

    公开(公告)号：JPS61135418A

    公开(公告)日：1986-06-23

    申请号：JP25498884

    申请日：1984-12-04

    Applicant: Mitsubishi Heavy Ind Ltd

    Inventor： OE TSUTOMU ,  KAMIKO SADAOMI ,  OZAKI TADAO ,  SUDO KATSUZO ,  YUZAKI YOSHIHIRO

    IPC: B21C37/12 ,  B23K9/032

    CPC classification number: B23K9/0325 ,  B21C37/123 ,  B23K2201/10

    Abstract: PURPOSE: To improve product quality and to increase product length by setting a winding drum equipped with a backing part together with a rotating take-up drum and drawing a spiral pipe continuously formed from the winding drum.
    CONSTITUTION: A spiral pipe manufacturing apparatus consists of a winding device A, drawing device B, and supply device C. A band plate 30b drawn from a coil 30a of a payoff reel 19 is fixed on the take-up drum 6 and the drum 6, the winding drum 4, and the backing part 5 are rotated at a winding speed corresponding to a specified welding speed. The band plate 30b is wound on the drums 6 and 4 through rolling reduction rollers and is welded by a welder 9. The out-of-roundness of the pipe is improved by forming pipe with it's out-of- roundness being equal to that of the drum 4, and the pipe quality is improved by welding pipe with backing it at the part 5. Furthermore, the long-sized pipe is manufactured by jointing the band plate 30b one after another.
    COPYRIGHT: (C)1986,JPO&Japio

    Abstract translation: 目的：通过将带有背衬部分的卷绕筒与旋转的卷取滚筒一起设置并从卷绕筒连续形成螺旋管来提高产品质量并提高产品长度。 构成：螺旋管制造装置由卷绕装置A，拉伸装置B和供给装置C构成。从卷取卷轴19的卷线30a拉出的带板30b固定在卷取筒6和滚筒6上 卷绕鼓4和背衬部5以对应于规定的焊接速度的卷绕速度旋转。 带板30b通过压下辊被卷绕在滚筒6和4上，并由焊机9焊接。通过形成管的不圆度等于管的不圆度来改善管的不圆度 鼓4，并且通过在部件5处具有背衬的焊接管来改善管道质量。此外，通过将带板30b相接合来制造长尺寸管。

    電縫鋼管之製造方法及含有高矽或高鉻之電縫鋼管
    70.
    发明专利
    電縫鋼管之製造方法及含有高矽或高鉻之電縫鋼管 有权
    电缝钢管之制造方法及含有高硅或高铬之电缝钢管

    公开(公告)号：TWI330554B

    公开(公告)日：2010-09-21

    申请号：TW097107025

    申请日：2008-02-29

    Applicant: 新日本製鐵股份有限公司

    Inventor： 濱谷秀樹 ,  兒玉真二 ,  水橋伸雄 ,  竹內順 ,  中治智博 ,  宮川隆 ,  朝日均 ,  谷本道俊 ,  向通誠

    IPC: B21C ,  B23K

    CPC classification number: B23K13/00 ,  B23K10/00 ,  B23K11/0873 ,  B23K11/16 ,  B23K11/34 ,  B23K11/36 ,  B23K13/06 ,  B23K28/02 ,  B23K2201/06 ,  B23K2201/10 ,  B23K2201/18 ,  B23K2203/04 ,  Y10T428/12292

    Abstract: 本發明係提供一種可藉由照射電漿以穩定減低氧化物引起的熔接缺陷，且可減低電漿噴流音之電縫鋼管之製造方法，係於鋼板加工成形為管狀，對其對接端面進行電縫熔接時，至少對在前述電縫熔接之熔接點之熔接上游側處溫度650℃以上之區域中之對接端面噴射還原性高溫層流電漿或還原性高溫擬似層流電漿；又，前述還原性高溫層流電漿或還原性高溫擬似層流電漿係藉將前述電漿活化氣體之成分調整成為含有2體積%以上、小於50體積%之氫氣，且剩餘部分由氬氣及不可避免之雜質氣體構成，或剩餘部分由於氬氣中添加氮氣、氦氣或氮氣與氦氣兩者之混合氣體及不可避免之雜質氣體者所構成，來賦與還原性。此時，施加之電壓宜為大於120V之電壓，同時滿足以下數式 之電漿噴射條件。

    Abstract in simplified Chinese: 本发明系提供一种可借由照射等离子以稳定减低氧化物引起的熔接缺陷，且可减低等离子喷流音之电缝钢管之制造方法，系于钢板加工成形为管状，对其对接端面进行电缝熔接时，至少对在前述电缝熔接之熔接点之熔接上游侧处温度650℃以上之区域中之对接端面喷射还原性高温层流等离子或还原性高温拟似层流等离子；又，前述还原性高温层流等离子或还原性高温拟似层流等离子系藉将前述等离子活化气体之成分调整成为含有2体积%以上、小于50体积%之氢气，且剩余部分由氩气及不可避免之杂质气体构成，或剩余部分由于氩气中添加氮气、氦气或氮气与氦气两者之混合气体及不可避免之杂质气体者所构成，来赋与还原性。此时，施加之电压宜为大于120V之电压，同时满足以下数式<1>之等离子喷射条件。

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