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1. 发明申请

US20130205861A1 METHOD FOR PRODUCING DOUBLE-WALL TUBE WITH BRAIDED WIRES AT ITS INTERFACE 有权
标题翻译：用于在其接口上生产具有布线的双壁管的方法
公开(公告)号：US20130205861A1
公开(公告)日：2013-08-15
申请号：US13878275
申请日：2011-10-17
申请人： Takuya Hanada , Takashi Nakashima , Tetsuo Yokoyama , Kouichi Kuroda , Tatsuya Okui
发明人： Takuya Hanada , Takashi Nakashima , Tetsuo Yokoyama , Kouichi Kuroda , Tatsuya Okui
IPC分类号： B21C1/22
CPC分类号： B21C1/22 , B21C37/154 , F28F1/003
摘要： Provided is a method for producing a double-wall tube with braided wires at its interface in which the braided wires are interposed between an outer-wall and inner-wall blank tubes and then a drawing process is applied so as for the braided wires to be brought into close contact with the inner surface of the outer-wall tube and the outer surface of the inner-wall tube, the method comprising: polishing the inner surface of the outer-wall blank tube and the outer surface of the inner-wall blank tube so that a surface roughness thereof satisfies Ra
摘要翻译：提供一种在其界面处制造具有编织线的双壁管的方法，其中编织线插入在外壁和内壁空白管之间，然后进行拉丝处理以使编织线为与外壁管的内表面和内壁管的外表面紧密接触，该方法包括：抛光外壁空白管的内表面和内壁空白的外表面使其表面粗糙度满足Ra <1.0μm，然后将编织线插入外壁和内壁空白管之间; 进行下沉拉伸处理，使得所得双壁管的外径相对于模孔直径的差异为0.1mm至0.3mm; 并进行热处理。所生产的双壁管适合用作传热管。

2. 发明授权

US09238258B2 Method for producing double-wall tube with braided wires at its interface 有权
标题翻译：在其界面生产编织线双壁管的方法
公开(公告)号：US09238258B2
公开(公告)日：2016-01-19
申请号：US13878275
申请日：2011-10-17
申请人： Takuya Hanada , Takashi Nakashima , Tetsuo Yokoyama , Kouichi Kuroda , Tatsuya Okui
发明人： Takuya Hanada , Takashi Nakashima , Tetsuo Yokoyama , Kouichi Kuroda , Tatsuya Okui
IPC分类号： B21C1/22 , B21C37/15 , F28F1/00
CPC分类号： B21C1/22 , B21C37/154 , F28F1/003
摘要： Provided is a method for producing a double-wall tube with braided wires at its interface in which the braided wires are interposed between an outer-wall and inner-wall blank tubes and then a drawing process is applied so as for the braided wires to be brought into close contact with the inner surface of the outer-wall tube and the outer surface of the inner-wall tube, the method comprising: polishing the inner surface of the outer-wall blank tube and the outer surface of the inner-wall blank tube so that a surface roughness thereof satisfies Ra
摘要翻译：提供一种在其界面处制造具有编织线的双壁管的方法，其中编织线插入在外壁和内壁空白管之间，然后进行拉丝处理以使编织线为与外壁管的内表面和内壁管的外表面紧密接触，该方法包括：抛光外壁空白管的内表面和内壁空白的外表面使其表面粗糙度满足Ra <1.0μm，然后将编织线插入外壁和内壁空白管之间; 进行下沉拉伸处理，使得所得双壁管的外径相对于模孔直径的差异为0.1mm至0.3mm; 并进行热处理。所生产的双壁管适合用作传热管。

3. 发明申请

US20090038367A1 Apparatus for pipe end sizing and method for pipe end sizing 有权
标题翻译：管端尺寸设备及管端尺寸方法
公开(公告)号：US20090038367A1
公开(公告)日：2009-02-12
申请号：US12232925
申请日：2008-09-26
申请人： Tatsuya Okui , Kouichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Kouichi Kuroda , Masayoshi Akiyama
IPC分类号： B21D41/02
CPC分类号： B21D39/20 , B21D3/14 , B21D41/026
摘要： An apparatus for sizing a pipe end comprising: a plug 3 for sizing the pipe end; a chuck 2 for clamping the pipe; and shifting means for shifting the position of the plug 3 and/the chuck 2, which are placed successively from the end of the pipe 2, and the plug 3 has a circular cross section, and is constituted by a taper portion 31 and a diameter equivalent portion 32 continuously formed from the tip of the plug in succession. The outer diameter of the taper portion 31 is gradually expanding from the tip toward the rear end while satisfying the following formulas (1) and (2). The chuck 2 is capable of changing clamping position of the pipe 1. This apparatus makes it possible to size the inner diameter of a pipe end with superior dimensional precision. 22≦LR/(D1×0.01/2)≦115 (1) R2≧R1 (2)
摘要翻译：一种用于使管端尺寸调整的装置，包括：用于使管端尺寸调整的塞子3; 用于夹紧管的卡盘2; 以及用于移动从管2的端部依次放置的塞子3和卡盘2的位置的移动装置，并且塞子3具有圆形横截面，并且由锥形部分31和直径从塞子的前端连续形成的等效部分32。锥形部31的外径从顶端朝向后端逐渐扩大，同时满足下述式（1）和（2）。卡盘2能够改变管1的夹紧位置。该装置使得可以以优异的尺寸精度对管端的内径进行尺寸化。 <？in-line-formula description =“In-line Formulas”end =“lead”？> 22 <= LR /（D1x0.01 / 2）<= 115（1）<？in-line-formula description = 在线公式“end =”tail“？> <？in-line-formula description =”In-line Formulas“end =”lead“？> R2> = R1（2）<？in-line-formula description = “直线公式”end =“tail”？>

4. 发明申请

US20090038366A1 Mechanical pipe-end expander and a method of manufacturing seamless steel pipe 有权
标题翻译：机械管端膨胀机及无缝钢管制造方法
公开(公告)号：US20090038366A1
公开(公告)日：2009-02-12
申请号：US12230892
申请日：2008-09-08
申请人： Tsutomu Arita , Masayoshi Akiyama , Kouichi Kuroda , Tatsuya Okui
发明人： Tsutomu Arita , Masayoshi Akiyama , Kouichi Kuroda , Tatsuya Okui
IPC分类号： B21D39/20
CPC分类号： B21D41/02 , B21D39/20
摘要： The present invention provides a mechanical pipe-end expander comprising a cone and a die having tapered wedge bodies whose outer radius is larger towards a flangeless end direction from a flange end, wherein a pipe-end zone is expanded by a wedge effect of the die, which results from a procedure that the cone and the die are inserted together into the pipe-end zone to be expanded, and that then only the cone is axially drawn outwards leaving the die within the pipe-end zone. A seamless steel pipe with an expanded pipe-end zone is manufactured by applying a mechanical pipe-end expander comprising a die having tapered wedge bodies whose outer radius is larger towards a flangeless end direction from a flange end. The resulting seamless steel pipe has satisfactory pipe-end dimensional accuracy, and exhibits characteristics with excellent field welding workability.
摘要翻译：本发明提供了一种机械管端膨胀机，其包括具有锥形和锥形的模具，所述锥体和模具具有锥形楔形体，其外径比法兰端的无法兰端方向更大，其中管端区域通过模具的楔形效应而膨胀这是由锥体和模具一起插入到管端区域中以扩展的程序产生的，然后只有锥体被轴向地向外拉出，使得模具在管端区域内。具有扩展的管端区域的无缝钢管通过应用机械管端膨胀机来制造，所述机械管端膨胀机包括具有锥形楔形体的模具，所述模具的外径从凸缘端朝向无凸缘端方向较大。所得到的无缝钢管具有令人满意的管端尺寸精度，并具有优异的现场焊接加工性能。

5. 发明授权

US07765850B2 Mechanical pipe-end expander and a method of manufacturing seamless steel pipe 有权
标题翻译：机械管端膨胀机及无缝钢管制造方法
公开(公告)号：US07765850B2
公开(公告)日：2010-08-03
申请号：US12230892
申请日：2008-09-08
申请人： Tsutomu Arita , Masayoshi Akiyama , Kouichi Kuroda , Tatsuya Okui
发明人： Tsutomu Arita , Masayoshi Akiyama , Kouichi Kuroda , Tatsuya Okui
IPC分类号： B21D41/02 , B21D39/20 , B21D39/08
CPC分类号： B21D41/02 , B21D39/20
摘要： The present invention provides a mechanical pipe-end expander comprising a cone and a die having tapered wedge bodies whose outer radius is larger towards a flangeless end direction from a flange end, wherein a pipe-end zone is expanded by a wedge effect of the die, which results from a procedure that the cone and the die are inserted together into the pipe-end zone to be expanded, and that then only the cone is axially drawn outwards leaving the die within the pipe-end zone. A seamless steel pipe with an expanded pipe-end zone is manufactured by applying a mechanical pipe-end expander comprising a die having tapered wedge bodies whose outer radius is larger towards a flangeless end direction from a flange end. The resulting seamless steel pipe has satisfactory pipe-end dimensional accuracy, and exhibits characteristics with excellent field welding workability.
摘要翻译：本发明提供了一种机械管端膨胀机，其包括具有锥形和锥形的模具，所述锥体和模具具有锥形楔形体，其外径比法兰端的无法兰端方向更大，其中管端区域通过模具的楔形效应而膨胀这是由锥体和模具一起插入到管端区域中以扩展的程序产生的，然后只有锥体被轴向地向外拉出，使得模具在管端区域内。具有扩展的管端区域的无缝钢管通过应用机械管端膨胀机制造，所述机械管端膨胀机包括具有锥形楔形体的模具，所述模具的外径从凸缘端朝向无凸缘端方向较大。所得到的无缝钢管具有令人满意的管端尺寸精度，并具有优异的现场焊接加工性能。

6. 发明授权

US08074482B2 Plug for cold drawing and method for manufacturing of metal pipe 有权
标题翻译：冷拔插头及金属管制造方法
公开(公告)号：US08074482B2
公开(公告)日：2011-12-13
申请号：US12691503
申请日：2010-01-21
申请人： Tatsuya Okui , Kouichi Kuroda , Tadashi Kawakami
发明人： Tatsuya Okui , Kouichi Kuroda , Tadashi Kawakami
IPC分类号： B21C1/24
CPC分类号： B21C3/16 , B21C1/24
摘要： A plug 1 includes a first columnar portion 20, a tapered portion 30, and a second columnar portion 40. The first columnar portion 20 has an outside diameter D1. The second columnar portion 40 has an outside diameter D2 which is larger than the outside diameter D1. The tapered portion 30 is formed between the first columnar portion 20 and the second columnar portion 40. The tapered portion 30 has a tapered surface 31 provided with an outside diameter which is gradually increased from the first columnar portion 20 to the second columnar portion 40, and an axial direction length L. The outside diameters D1 and D2, and the axial direction length L meet the following expressions (1) to (4): 0.25≦ρ≦2.00 (1), 0.06≦L/D2≦0.8 (2), L/D2≦0.3×ρ+0.575 (3), and L/D2≧0.1×ρ (4) where ρ=(D2−D1)/D1×100. Therefore, the cold drawing plug according to the present invention can reduce the tensile residual stress on the outer surface of a metal pipe after the cold drawing.
摘要翻译：插头1包括第一柱状部分20，锥形部分30和第二柱状部分40.第一柱状部分20具有外径D1。第二柱状部分40具有比外径D1大的外径D2。锥形部分30形成在第一柱状部分20和第二柱状部分40之间。锥形部分30具有锥形表面31，其具有从第一柱状部分20逐渐增加到第二柱状部分40的外径，外径D1和D2以及轴向长度L满足以下公式（1）〜（4）：0.25＆nlE;＆rgr;＆nlE; 2.00（1），0.06＆nlE; L / D2＆nlE ; 0.8（2），L / D2＆nlE; 0.3×＆rgr; +0.575（3），L /D2≥0.1×＆rgr; （4）其中＆rgr = =（D2-D1）/ D1×100。因此，根据本发明的冷拔塞可以减少冷拔后的金属管的外表面的拉伸残余应力。

7. 发明申请

US20100170316A1 Plug for Cold Drawing and Method for Manufacturing of Metal Pipe 有权
标题翻译：冷拔插头及金属管制造方法
公开(公告)号：US20100170316A1
公开(公告)日：2010-07-08
申请号：US12691503
申请日：2010-01-21
申请人： Tatsuya Okui , Kouichi Kuroda , Tadashi Kawakami
发明人： Tatsuya Okui , Kouichi Kuroda , Tadashi Kawakami
IPC分类号： B21C1/24
CPC分类号： B21C3/16 , B21C1/24
摘要： A plug 1 includes a first columnar portion 20, a tapered portion 30, and a second columnar portion 40. The first columnar portion 20 has an outside diameter D1. The second columnar portion 40 has an outside diameter D2 which is larger than the outside diameter D1. The tapered portion 30 is formed between the first columnar portion 20 and the second columnar portion 40. The tapered portion 30 has a tapered surface 31 provided with an outside diameter which is gradually increased from the first columnar portion 20 to the second columnar portion 40, and an axial direction length L. The outside diameters D1 and D2, and the axial direction length L meet the following expressions (1) to (4): 0.25≦ρ≦2.00 (1), 0.06≦L/D2≦0.8 (2), L/D2≦0.3×ρ+0.575 (3), and L/D2≧0.1×ρ (4) where ρ=(D2−D1)/D1×100. Therefore, the cold drawing plug according to the present invention can reduce the tensile residual stress on the outer surface of a metal pipe after the cold drawing.
摘要翻译：插头1包括第一柱状部分20，锥形部分30和第二柱状部分40.第一柱状部分20具有外径D1。第二柱状部分40具有比外径D1大的外径D2。锥形部分30形成在第一柱状部分20和第二柱状部分40之间。锥形部分30具有锥形表面31，其具有从第一柱状部分20逐渐增加到第二柱状部分40的外径，外径D1和D2以及轴向长度L满足以下公式（1）〜（4）：0.25＆nlE;＆rgr;＆nlE; 2.00（1），0.06＆nlE; L / D2＆nlE ; 0.8（2），L / D2＆nlE; 0.3×＆rgr; +0.575（3），L /D2≥0.1×＆rgr; （4）其中＆rgr = =（D2-D1）/ D1×100。因此，根据本发明的冷拔塞可以减少冷拔后的金属管的外表面的拉伸残余应力。

8. 发明授权

US07788957B2 Apparatus for pipe end sizing and method for pipe end sizing 有权
标题翻译：管端尺寸设备及管端尺寸方法
公开(公告)号：US07788957B2
公开(公告)日：2010-09-07
申请号：US12232925
申请日：2008-09-26
申请人： Tatsuya Okui , Kouichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Kouichi Kuroda , Masayoshi Akiyama
IPC分类号： B21B19/04 , B21B17/10 , B21D39/08
CPC分类号： B21D39/20 , B21D3/14 , B21D41/026
摘要： An apparatus for sizing a pipe end comprising: a plug 3 for sizing the pipe end; a chuck 2 for clamping the pipe; and shifting means for shifting the position of the plug 3 and/the chuck 2, which are placed successively from the end of the pipe 2, and the plug 3 has a circular cross section, and is constituted by a taper portion 31 and a diameter equivalent portion 32 continuously formed from the tip of the plug in succession. The outer diameter of the taper portion 31 is gradually expanding from the tip toward the rear end while satisfying the following formulas (1) and (2). The chuck 2 is capable of changing clamping position of the pipe 1. This apparatus makes it possible to size the inner diameter of a pipe end with superior dimensional precision 22≦LR/(D1×0.01/2)≦115 (1) R2≧R1 (2).
摘要翻译：一种用于使管端尺寸调整的装置，包括：用于使管端尺寸调整的塞子3; 用于夹紧管的卡盘2; 以及用于移动从管2的端部依次放置的塞子3和卡盘2的位置的移动装置，并且塞子3具有圆形横截面，并且由锥形部分31和直径从塞子的前端连续形成的等效部分32。锥形部31的外径从顶端朝向后端逐渐扩大，同时满足下述式（1）和（2）。卡盘2能够改变管1的夹紧位置。该装置使得可以以优异的尺寸精度22和nlE; LR /（D1×0.01 / 2）＆nlE; 115（1）R2来缩小管端的内径 ≧R1（2）。

9. 发明申请

US20050266927A1 Seamless steel tube for drive shaft and method for manufacturing the same 审中-公开
标题翻译：用于驱动轴的无缝钢管及其制造方法
公开(公告)号：US20050266927A1
公开(公告)日：2005-12-01
申请号：US11191909
申请日：2005-07-29
申请人： Kouichi Kuroda , Tatsuya Okui , Keisuke Hitoshio
发明人： Kouichi Kuroda , Tatsuya Okui , Keisuke Hitoshio
IPC分类号： B21B17/02 , B21B17/14 , B21B19/04 , B21B23/00 , B21B27/02 , F16D3/16
CPC分类号： B21B17/02 , B21B17/14 , B21B19/04 , B21B23/00 , B21B27/02
摘要： A steel tube hot-finished by the Mannesmann tube-making method is subjected to a simple grinding process for the inner surface, and thereafter to a cold drawing, so that the depth d of the concave portion in the concavo-convex profile forming the inner surface of the steel tube, the surface roughness Ra and the width w of the entrance in the concave portion are specified, or similarly the depth d of the concave portion in the concavo-convex profile, the Vickers hardness Hv of the inner surface layer and the width w of the entrance in the concave portion are specified, hollow parts for a drive shaft, which have an excellent fatigue strength and which is optimal to reduce the weight of a car body, can be produced. Accordingly, the application of the manufacturing method according to the present invention allows drive shafts for automobiles to be efficiently produced in a reduced manufacturing cost, thereby providing a significant advantage in the industry.
摘要翻译：通过曼内斯曼管制造方法热轧的钢管对内表面进行简单的研磨处理，然后进行冷拉伸，使得凹凸轮廓中的凹部的深度d形成内部规定了钢管的表面，凹部的入口的表面粗糙度Ra和宽度w，或类似地，凹凸型的凹部的深度d，内表面层的维氏硬度Hv，规定了凹部的入口宽度w，可以制造具有优异的疲劳强度并且最适于减轻车体重量的用于驱动轴的中空部件。因此，根据本发明的制造方法的应用允许以降低的制造成本有效地生产用于汽车的驱动轴，从而在工业中提供显着的优点。

10. 发明授权

US07371293B2 Cold finished seamless steel tubes 有权
标题翻译：冷成品无缝钢管
公开(公告)号：US07371293B2
公开(公告)日：2008-05-13
申请号：US11039954
申请日：2005-01-24
申请人： Takashi Nakashima , Kouichi Kuroda , Kenichi Beppu
发明人： Takashi Nakashima , Kouichi Kuroda , Kenichi Beppu
IPC分类号： C22C38/18 , C22C38/00 , C21D8/10
CPC分类号： C21D9/08 , B21D3/04 , Y10T428/12458
摘要： Cold finished seamless steel tubes are made such that the residual stress F to be generated at the stage of the correction process after cold working is controlled to be 30 MPa or more and the scattering thereof is 30 MPa or less, when measured by Crampton method. Further, by adjusting the average grain size of spheroidized carbides, the dimensional change which emerges in lathe turning of the outside and inside diameter of relevant steel tubes due to the residual strain can be suppressed, and the strict roundness as well as the excellent machinability can be secured at the final processing stage of the work pieces for bearing parts. Consequently, steel tubes with high dimensional accuracy and less dimensional change at the final steps such as lathe turning, heat treatment and the like, can be made for use as bearing parts.
摘要翻译：制成冷成品无缝钢管，使得在通过Crampton法测量时，在冷加工后的校正处理阶段中产生的残余应力F被控制为30MPa以上，散射为30MPa以下。此外，通过调整球状碳化物的平均粒径，可以抑制由于残留应变而导致的相关钢管的外径和内径的车削转弯引起的尺寸变化，严格的圆度以及优异的机械加工性在轴承零件的工件的最终加工阶段被固定。因此，可以在诸如车床车削，热处理等的最终步骤中具有高尺寸精度和较小尺寸变化的钢管用作轴承部件。

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