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1. 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。

2. 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。

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）。

5. 发明授权

US07401486B2 Die, method of manufacturing stepped metal pipe or tube, and stepped metal pipe or tube 有权
标题翻译：模具，制造阶梯式金属管或管的方法，以及阶梯式金属管或管
公开(公告)号：US07401486B2
公开(公告)日：2008-07-22
申请号：US10581993
申请日：2005-08-30
申请人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
IPC分类号： B21C25/08
CPC分类号： B21C37/18 , B21C3/04 , B21C5/00 , Y10T29/49446
摘要： A die through hole has an inside surface including a bell portion, an approach portion, and a bearing portion from the entrance side. The diameter of the approach portion is D1 on its entrance side and D2 on its exit side and gradually decreases from the entrance side to the exit side. The diameter satisfies Equation (1): 0.7≦D2/D1
摘要翻译：模具通孔具有从入口侧包括钟形部分，接近部分和轴承部分的内表面。接近部分的直径在入口侧为D 1，其出口侧的直径为D 2，从入口侧到出口侧逐渐减小。直径满足公式（1）：0.7 <= D 2 / D 1 <0.97。直径D 3为D 2 /0.97的内表面的模半角不小于比直径为D 3的内表面更靠近接近部分出口侧的内表面的模具半角R 2。从直径为D 3的内表面到直径为D 2的内表面的轴向距离LR满足式（2）：20 <= LR /（（D 3 -D 2）/ 2）<= 115。轴承部分的通孔直径固定在D 2，长度为LB，满足公式（3）：0.3 <= LB / D 2 <= 10。

6. 发明申请

US20080072647A1 Die, method of manufacturing stepped metal pipe or tube, and stepped metal pipe or tube 审中-公开
标题翻译：模具，制造阶梯式金属管或管的方法，以及阶梯式金属管或管
公开(公告)号：US20080072647A1
公开(公告)日：2008-03-27
申请号：US11984109
申请日：2007-11-13
申请人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
IPC分类号： B23P17/00
CPC分类号： B21C37/18 , B21C3/04 , B21C5/00 , Y10T29/49446
摘要： The through hole of a die has an inside surface including a bell portion, an approach portion, and a bearing portion from the entrance side formed in a continuous manner. The diameter of the approach portion is D1 on the entrance side of the approach portion and D2 on the exit side of the approach portion and gradually decreases from the entrance side to the exit side. The diameter satisfies Equation (1): 0.7≦D2/D1
摘要翻译：模具的通孔具有包括钟形部分，接近部分和从连续形成的入口侧的轴承部分的内表面。接近部分的直径在接近部分的入口侧为D 1，而在接近部分的出口侧的直径为D 2，并从入口侧到出口侧逐渐减小。直径满足公式（1）：0.7 <= D 2 / D 1 <0.97。直径D 3为D 2 /0.97的内表面的模半角不小于直径为D的内表面的靠近接近部分的出射侧的内表面的模具半角R 2 3，从直径为D 3的内表面到直径为D 2的内表面的轴向距离LR满足式（2）：20 <= LR /（（D 3 -D 2）/ 2） = 115。轴承部分的通孔的直径固定为D 2，长度为LB，满足公式（3）：0.3 <= LB / D 2 <= 10。

7. 发明申请

US20080216544A1 Plug, Method of Expanding Inside Diameter of Metal Pipe or Tube Using Such Plug, Method of Manufacturing Metal Pipe or Tube, and Metal Pipe or Tube 有权
标题翻译：插头，使用这种插头扩大金属管或管内径的方法，制造金属管或管的方法和金属管或管
公开(公告)号：US20080216544A1
公开(公告)日：2008-09-11
申请号：US11663429
申请日：2005-09-15
申请人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
IPC分类号： B21D39/20 , B23P17/04
CPC分类号： B21D39/20 , B21D41/02 , Y10T29/49
摘要： The plug is for expanding the inside diameter of the end portion of a metal pipe. Its cross section is a circle, and includes a taper portion and a parallel portion connected to the tail end of the taper portion. The diameter of the taper portion gradually increases from the head end of the taper portion to the tail end of the taper portion where the diameter is D1. The axial distance LR from the point where the diameter D2=D1×0.99 to the tail end where the diameter is D1 satisfies the Expression 22≦LR/((D1−D2)/2)≦115. The taper angle on the surface where the diameter is D2 is larger than or equal to the taper angle on the tail surface of the taper portion following the point where the diameter is D2. The diameter of the parallel portion is D1.
摘要翻译：插头用于扩大金属管的端部的内径。其截面是圆形的，并且包括锥形部分和连接到锥形部分的尾端的平行部分。锥形部分的直径从直径为D 1的锥形部分的顶端到尾端逐渐增加。从直径D 2 = D 1 x0.99到直径为D 1的尾端的轴向距离LR满足式22 <= LR /（（D 1 -D 2）/ 2）<= 115 。直径为D 2的表面上的锥角大于或等于直径为D 2的锥形部分的尾部表面上的锥角。平行部分的直径为D 1。

8. 发明授权

US08079243B2 Plug, method of expanding inside diameter of metal pipe or tube using such plug, method of manufacturing metal pipe or tube, and metal pipe or tube 有权
标题翻译：插头，使用这种插头扩大金属管或管的内径的方法，制造金属管或管的方法以及金属管或管
公开(公告)号：US08079243B2
公开(公告)日：2011-12-20
申请号：US11663429
申请日：2005-09-15
申请人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
IPC分类号： B21B19/04 , B21B17/10 , B21D39/08
CPC分类号： B21D39/20 , B21D41/02 , Y10T29/49
摘要： The plug is for expanding the inside diameter of the end portion of a metal pipe. Its cross section is a circle, and includes a taper portion and a parallel portion connected to the tail end of the taper portion. The diameter of the taper portion gradually increases from the head end of the taper portion to the tail end of the taper portion where the diameter is D1. The axial distance LR from the point where the diameter D2=D1×0.99 to the tail end where the diameter is D1 satisfies the Expression 22≦LR/((D1−D2)/2)≦115. The taper angle on the surface where the diameter is D2 is larger than or equal to the taper angle on the tail surface of the taper portion following the point where the diameter is D2. The diameter of the parallel portion is D1.
摘要翻译：插头用于扩大金属管的端部的内径。其截面是圆形的，并且包括锥形部分和连接到锥形部分的尾端的平行部分。锥形部分的直径从锥形部分的头端到直径为D1的锥形部分的尾端逐渐增加。从直径D2 = D1×0.99的点到直径为D1的尾端的轴向距离LR满足表达式22＆nlE; LR /（（D1-D2）/ 2）＆nlE; 115。直径为D2的表面上的锥角大于或等于直径为D2的锥形部分的尾部表面上的锥角。平行部分的直径为D1。

9. 发明申请

US20070157694A1 Die, method of manufacturing stepped metal pipe or tube, and stepped metal pipe or tube 有权
标题翻译：模具，制造阶梯式金属管或管的方法，以及阶梯式金属管或管
公开(公告)号：US20070157694A1
公开(公告)日：2007-07-12
申请号：US10581993
申请日：2005-08-30
申请人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
发明人： Tatsuya Okui , Koichi Kuroda , Masayoshi Akiyama
IPC分类号： B21C23/00
CPC分类号： B21C37/18 , B21C3/04 , B21C5/00 , Y10T29/49446
摘要： A die through hole has an inside surface including a bell portion, an approach portion, and a bearing portion from the entrance side. The diameter of the approach portion is D1 on its entrance side and D2 on its exit side and gradually decreases from the entrance side to the exit side. The diameter satisfies Equation (1): 0.7
摘要翻译：模具通孔具有从入口侧包括钟形部分，接近部分和轴承部分的内表面。接近部分的直径在入口侧为D 1，其出口侧的直径为D 2，从入口侧到出口侧逐渐减小。直径满足公式（1）：0.7

10. 发明申请

US20100132427A1 Cold Working Lubricant and Cold Working Method for Steel Pipe 审中-公开
标题翻译：钢管冷作润滑剂和冷加工方法
公开(公告)号：US20100132427A1
公开(公告)日：2010-06-03
申请号：US12701343
申请日：2010-02-05
申请人： Masayoshi Akiyama , Tsutomu Arita
发明人： Masayoshi Akiyama , Tsutomu Arita
IPC分类号： B21D37/16
CPC分类号： C10M105/24 , C10M173/02 , C10M2207/1253 , C10N2230/06 , C10N2240/403 , C10N2240/405 , C10N2250/121 , C10N2210/01
摘要： The present invention provides a lubricant comprising an alkali soap and a cold working method, in which the lubricant layer can be easily formed on the surface of a steel pipe prior to cold working the reduces the work load during cold working of the steel pipe, and whose layer can be easily removed by washing the surface of the steel pipe after cold working. After that, an alkali soap aqueous solution or aqueous pasty alkali soap is applied to the working surface of the steel pipe, cold working of the steel pipe is performed, and thereafter the alkali soap layer is removed by washing with water. The alkali soap aqueous solution or aqueous pasty alkali soap is preferably prepared within a vessel having an inner surface consisting of a non-metal material.
摘要翻译：本发明提供一种含有碱皂和冷加工方法的润滑剂，其中可以在冷加工前在钢管的表面上容易地形成润滑剂层，从而降低钢管的冷加工时的工作负荷，通过在冷加工后清洗钢管的表面，可以容易地除去其层。之后，将碱性皂水溶液或糊状碱肥皂施加到钢管的工作面上，进行钢管的冷加工，然后用水洗涤除去碱性皂层。碱肥皂水溶液或水性糊状碱肥皂优选在具有由非金属材料构成的内表面的容器内制备。

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