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1. 发明授权

US5213633A Electric resistance welded steel tube for machine structural use exhibiting outstanding machinability 失效
标题翻译：电机焊接钢管机械结构使用展现出卓越的机械性能
公开(公告)号：US5213633A
公开(公告)日：1993-05-25
申请号：US794885
申请日：1991-11-20
申请人： Kenji Hada , Yasuo Kimiya , Daigo Sumimoto
发明人： Kenji Hada , Yasuo Kimiya , Daigo Sumimoto
IPC分类号： C22C38/00 , C22C38/06 , C22C38/60
CPC分类号： C22C38/60 , C22C38/06 , Y10S148/909
摘要： An electric resistance welded steel pipe for machine structural use exhibiting excellent machinability comprises, in weight percent, 0.02-0.60% C, not more than 0.4% Si, 0.20-2.0% Mn, not more than 0.030% P, not more than 0.040% S, 0.001--0.030% T.Al, 0.0020-0.0100% N, not more than 0.0060% O, and one or both of not more than 0.040% Bi, not more than 0.040% Pb and not, Te and provided that the total amount of Bi and pb is not more than 0.050%, the remainder being Fe and unavoidable impurities. It may further comprise one or both of 0.10-1.50% Cr and 0.10-0.60% Mo and/or not more than 0.020% Ca, provided that Ca%/(1.25.times.0%+0.625.times.S%).gtoreq.0.05.

2. 发明授权

US06752451B2 Strengthening member for automobile 失效
标题翻译：加强汽车会员
公开(公告)号：US06752451B2
公开(公告)日：2004-06-22
申请号：US10311518
申请日：2002-12-13
申请人： Shinya Sakamoto , Daigo Sumimoto , Yoshio Terada , Yukihisa Kuriyama , Hiroshi Sakurai , Eizaburou Nakanishi
发明人： Shinya Sakamoto , Daigo Sumimoto , Yoshio Terada , Yukihisa Kuriyama , Hiroshi Sakurai , Eizaburou Nakanishi
IPC分类号： B21D4702
CPC分类号： B62D21/152 , B21C1/22 , B21D26/033 , B21D26/047 , B21D47/02 , B62D21/00 , B62D25/00 , B62D25/20 , B62D29/007 , F16F7/12 , Y10T29/49622
摘要： An object of the present invention is to provide a lightweight strengthening member for an automobile, excellent in crush resistance in the axial direction and having high flexural strength. Further, another object thereof is to provide a strengthening member which does not generating cracks even when a high-strength steel sheet is used. The present invention provides: a strengthening member 1 for an automobile, being a lengthy strengthening member 1 having concave portions 3 at the four corners of a basic rectangular cross section 2 and forming a cruciform closed section as a whole, characterized in that the wall thickness of the concave portions 3 is 5 to 30% thicker than the wall thickness of the portions excluding the concave portions, namely, the side walls 4 and the top walls 5; further, a strengthening member 1 for an automobile, characterized in that the hardness of the concave portions 3 is 5% or more higher than the hardness of the portions excluding the concave portions, namely, the side walls 4 and the top walls 5; and furthermore, a strengthening member 1 for an automobile formed by drawing or hydroforming.
摘要翻译：本发明的一个目的是提供一种用于汽车的轻质加强件，在轴向方向上具有优异的抗压碎性并且具有高弯曲强度。此外，其另一个目的是提供即使在使用高强度钢板时也不会产生裂缝的加强构件。本发明提供一种用于汽车的强化构件1，它是一个长的加强构件1，其具有在基本矩形横截面2的四个角处的凹入部分3，并且整体形成十字形封闭区域，其特征在于，壁厚的凹部3比除了凹部以外的部分即侧壁4和顶壁5的壁厚厚5〜30％另外，一种用于汽车的加强件1，其特征在于，凹部3的硬度比不包括凹部的部分即侧壁4和顶壁5的硬度高5％以上。并且还包括用于通过拉伸或液压成形形成的汽车用加强件1。

3. 发明授权

US5704243A Forming method and forming stand for welded pipes 失效
标题翻译：焊管成型方法及成型台
公开(公告)号：US5704243A
公开(公告)日：1998-01-06
申请号：US718289
申请日：1996-09-20
申请人： Kenji Hada , Yasuo Kimiya , Daigo Sumimoto
发明人： Kenji Hada , Yasuo Kimiya , Daigo Sumimoto
IPC分类号： B21D5/12
CPC分类号： B21D5/12
摘要： The present invention is to provide a forming method and forming stand for forming a welded pipe of high dimensional accuracy on a welded pipe manufacturing line in which a metallic strip of a predetermined width is continuously formed by rolls and then welded, and more particularly the present invention is to provide a forming method and forming stand for forming both edge portions of the metallic strip with high accuracy. Positions of two pairs of upper and lower horizontal forming rolls or two upper horizontal forming rolls, the rolls being provided when the upper and lower horizontal rolls are divided into two with respect to the width direction of the metallic strip, can be adjusted in the width direction, and each divided upper roll can be turned and fixed on a vertical axis. Further, in order to exhibit the effect of the present invention at the maximum, the turning direction and turning angle of each upper roll is limited. When the forming stand is constructed in the above manner, the edges of the metallic strip can be appropriately formed without deteriorating the accuracy of wall thickness of the metallic strip to be formed, and further the roll can be shared when metallic strips of different pipe diameters are formed.
摘要翻译：本发明提供一种用于在焊接管生产线上形成尺寸精度高的焊接管的成形方法和成型台，其中通过辊连续形成预定宽度的金属条，然后焊接，更具体地说是本发明本发明提供一种用于以高精度形成金属带的两个边缘部分的成形方法和成型台。两对上下水平成形辊或两个上部水平成形辊的位置，当上下水平辊相对于金属条的宽度方向分成两部分时，可以将宽度调整为宽度方向，并且每个分开的上辊可以在垂直轴上转动和固定。此外，为了最大限度地发挥本发明的效果，限制了上辊的转动方向和转动角度。当以上述方式构造成形台时，可以适当地形成金属带的边缘，而不会降低要形成的金属带的壁厚的精度，并且当具有不同管直径的金属条时，可以共享卷形成。

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