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    • 61. 发明授权
    • Steel pipe excellent in deformation characteristics and method of producing the same
    • 变形特性优良的钢管及其制造方法
    • US08920583B2
    • 2014-12-30
    • US12452765
    • 2008-07-22
    • Hitoshi AsahiTetsuo IshitsukaMotofumi KoyubaToshiyuki Ogata
    • Hitoshi AsahiTetsuo IshitsukaMotofumi KoyubaToshiyuki Ogata
    • B32B1/08C22C38/58C22C38/42C22C38/54C22C38/04C21D9/08C21D8/10
    • C22C38/04C21D8/105C21D9/08Y10T428/12292
    • The invention provides a steel pipe excellent in deformation characteristics, most notably a steel pipe for expandable-pipe oil well and a low-yield-ratio line pipe, and a method of producing the same without conducting water cooling requiring large-scale heat treatment equipment, namely a method of producing a steel pipe excellent in deformation characteristics whose microstructure is a two-phase structure including a martensite-austenite constituent at an area fraction of 2 to 10% and a soft phase, which method comprises: heating at Ac1+10° C. to Ac1+60° C. and thereafter cooling a precursor steel pipe which contains, in mass %, C: 0.04 to 0.10% and Mn: 1.00 to 2.50%, is limited to Si: 0.80% or less, P: 0.03% or less, S: 0.01% or less, Al: 0.10% or less and N: 0.01% or less, further contains one or more of Ni: 1.00% or less, Mo: 0.60% or less, Cr: 1.00% or less and Cu: 1.00% or less, where content of Mn and content of one or more of Cr, Ni, Mo and Cu satisfy Mn+Cr+Ni+2Mo+Cu≧2.00, and a balance of iron and unavoidable impurities.
    • 本发明提供一种变形特性优异的钢管,特别是可膨胀管油管用钢管和低屈服比管线管,以及不进行需要大型热处理设备的水冷却的制造方法 即具有优异的变形特性的钢管的制造方法,其特征在于微结构为包含2〜10%面积分数的马氏体 - 奥氏体组分和软相的两相组织,该方法包括:在Ac1 + 10 ℃至Ac1 + 60℃,然后将质量%C:0.04〜0.10%,Mn:1.00〜2.50%的前体钢管冷却至Si:0.80%以下,P: 0.03%以下,S:0.01%以下,Al:0.10%以下,N:0.01%以下,还含有Ni:1.00%以下,Mo:0.60%以下,Cr:1.00% 以下,Cu:1.00%以下,其中,Cr,Ni,Mo,Cu中的一种以上的Mn含量满足Mn + Cr + Ni + 2Mo +Cu≥2.00, 和铁和不可避免的杂质的平衡。
    • 67. 发明授权
    • Wire electric discharge machine
    • 线放电机
    • US06998561B2
    • 2006-02-14
    • US10689634
    • 2003-10-22
    • Junichi KatoKeiichiro MiyajimaYasuo ArakawaToshiyuki Ogata
    • Junichi KatoKeiichiro MiyajimaYasuo ArakawaToshiyuki Ogata
    • B23H7/06
    • B23H7/065B23H2500/20
    • A wire electric discharge machine capable of preventing a straightness error from being caused by consumption of a wire electrode, to eliminate insufficient machining. A correction angle φ is predetermined for preventing the straightness error of the workpiece due to consumption. Correction amounts d1′, d2′ on a program plane and an upper surface of a workpiece, respectively, are determined based on the predetermined correction angle φ, and are added to or substracted from a predetermined offset amount depending on a wire electrode radius and an electric discharging gap, to determine corrected offset amounts d1, d2 on the program plane and the upper surface of the workpiece, respectively. Correction amounts dlo, dup for lower and upper wire guides in an offset direction are obtained based on the corrected offset amounts d1, d2, respectively, so that motion paths of upper and lower wire guides relative to the workpiece are determined.
    • 一种能够防止线电极消耗引起的平直度误差的电线放电机,消除不充分的加工。 为了防止由于消耗引起的工件的直线度误差,修正角度φi是预定的。 基于预定的校正角度phi来确定编程平面和工件的上表面上的校正量d 1',d 2',并且根据线电极半径 和放电间隙,以分别确定编程平面和工件的上表面上的校正偏移量d 1,d 2。 基于校正的偏移量d 1,d 2分别获得偏移方向上下导线器的修正量dlo,dup,从而确定上,下导线器相对于工件的运动路径。
    • 68. 发明授权
    • Wire electric discharge machine
    • 线放电机
    • US06984800B2
    • 2006-01-10
    • US10956072
    • 2004-10-04
    • Hiroyuki AbeToshiyuki Ogata
    • Hiroyuki AbeToshiyuki Ogata
    • B23H7/10
    • B23H7/065B23H7/02B23H7/10B23H7/101B23H7/105
    • A wire electric discharge machine capable of adjusting spacing between a nozzle and a workpiece without manual operation and without causing damage to a machine and a workpiece. The wire electric discharge machine includes wire supply apparatus for supplying a wire electrode through the wire guide toward the workpiece; wire supply-amount measuring apparatus for measuring a supply amount of the wire electrode; wire front-end detecting apparatus for detecting a front end of the wire electrode being supplied by the wire supply apparatus at a wire front-end detecting position; and wire contact detecting apparatus for detecting contact of the front end of the wire electrode with an upper surface of the workpiece. A position of the upper surface of the workpiece is determined based on the wire front-end detecting position and a supply amount of the wire electrode measured by the supply amount measuring apparatus from when the front end of the workpiece is detected by the wire front-end detecting apparatus till the contact of the front end of the wire electrode with the upper surface of the workpiece is detected by the wire contact detecting apparatus.
    • 一种能够在不进行手动操作的情况下调整喷嘴和工件之间的间隔并且不会对机器和工件造成损坏的线材放电机。 电线放电机包括用于通过导线器将线电极朝向工件供电的供线装置; 用于测量线电极的供给量的电线供给量测量装置; 线前端检测装置,用于检测由电线供给装置在线前端检测位置供给的线电极的前端; 以及用于检测线电极的前端与工件的上表面的接触的线接触检测装置。 基于线前端检测位置和由供给量测量装置测量的线电极的供给量,从工件的前端由线前端检测位置检测工件的上表面的位置, 通过线接触检测装置检测直到线电极的前端与工件的上表面接触的端部检测装置。
    • 70. 发明申请
    • Wire electric discharge machine
    • 线放电机
    • US20050072760A1
    • 2005-04-07
    • US10956072
    • 2004-10-04
    • Hiroyuki AbeToshiyuki Ogata
    • Hiroyuki AbeToshiyuki Ogata
    • B23H7/02B23H7/06B23H7/10B23H7/08
    • B23H7/065B23H7/02B23H7/10B23H7/101B23H7/105
    • A wire electric discharge machine capable of adjusting spacing between a nozzle and a workpiece without manual operation and without causing damage to a machine and a workpiece. The wire electric discharge machine comprises: wire supply means for supplying a wire electrode through the wire guide toward the workpiece; wire supply-amount measuring means for measuring a supply amount of the wire electrode; wire front-end detecting means for detecting a front end of the wire electrode being supplied by the wire supply means at a wire front-end detecting position; and wire contact detecting means for detecting contact of the front end of the wire electrode with an upper surface of the workpiece. A position of the upper surface of the workpiece is determined based on the wire front-end detecting position and a supply amount of the wire electrode measured by the supply amount measuring means from when the front end of the workpiece is detected by the wire front-end detecting means till the contact of the front end of the wire electrode with the upper surface of the workpiece is detected by the wire contact detecting means.
    • 一种能够在不进行手动操作的情况下调整喷嘴和工件之间的间隔并且不会对机器和工件造成损坏的线材放电机。 线材放电机包括:线材供给装置,用于通过导线器将线电极朝向工件供电; 线供给量测量装置,用于测量线电极的供给量; 线前端检测装置,用于检测在电线前端检测位置由电线供给装置提供的线电极的前端; 以及线接触检测装置,用于检测线电极的前端与工件的上表面的接触。 基于线前端检测位置和由供给量测量装置测量的线电极的供给量,从工件的前端由线前端检测位置检测工件的上表面的位置, 通过线接触检测装置检测直到线电极的前端与工件的上表面接触的端部检测装置。