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1. 发明授权

US4796798A Method of and apparatus for continuous production of seam-welded metal tubing 失效
标题翻译：连续生产缝焊金属管的方法和设备
公开(公告)号：US4796798A
公开(公告)日：1989-01-10
申请号：US60084
申请日：1987-06-09
申请人： Toshio Tsuta , Koji Kadota , Shigetomo Matsui , Hiroyuki Matsumura , Hisao Hasegawa , Hiromichi Nakamura , Tetsuro Noma , Hisahiko Miyazaki , Munekatsu Furugen
发明人： Toshio Tsuta , Koji Kadota , Shigetomo Matsui , Hiroyuki Matsumura , Hisao Hasegawa , Hiromichi Nakamura , Tetsuro Noma , Hisahiko Miyazaki , Munekatsu Furugen
IPC分类号： B23K13/02 , B21C37/08 , B23K13/00 , B23K31/02 , B23K31/06
CPC分类号： B23K31/027 , B21C37/08
摘要： An apparatus for continuous production of seam-welded steel tubing is proposed. The apparatus includes a series of shaping rolls for shaping a strip taken out from a strip coil into a tubular intermediate product, the roll series including a finpass roll group. The tubular product is subjected to seam welding under the action of a seam welder. Before arrival at the welder, a substantial main part of the preformed tubing with exception of opposing edge zones thereof is subjected to heating by a heater compensate for excess compressive stresses induced in the edge zones, while these zones are subjected to cooling by a cooler for avoiding otherwise formation of disadvantageous edge wavings which would otherwise occur.
摘要翻译：提出了一种连续生产缝焊钢管的设备。该设备包括一系列成形辊，用于将从带状卷取出的带材成形为管状中间产品，该卷系列包括一个翅片卷组。在缝焊机的作用下对管状产品进行缝焊。在到达焊工之前，除了相对的边缘区域之外，预成型管的实质主要部分通过加热器进行加热，以补偿在边缘区域中引起的过度的压缩应力，而这些区域被冷却器避免否则会形成否则会发生的不利的边缘波动。

2. 发明授权

US5244356A Hydraulic piston apparatus 失效
标题翻译：液压活塞装置
公开(公告)号：US5244356A
公开(公告)日：1993-09-14
申请号：US969515
申请日：1992-10-30
申请人： Hisao Hasegawa
发明人： Hisao Hasegawa
IPC分类号： F04B1/00 , F04B1/053 , F04B1/06 , F04B1/107 , F04B1/113 , F04B1/12 , F04B49/10
CPC分类号： F04B49/103 , F04B1/00 , F04B1/053 , F04B1/066 , F04B1/1071 , F04B1/1133 , F04B1/12
摘要： A variable capacity hydraulic constant stroke piston apparatus has an annular rotor rotatably mounted for rotation around an axis of rotation and having a plurality of radial cylinder bores therein spaced at intervals therearound with working liquid inlets and outlets at the radially outer ends thereof, a rotor drive for rotating said rotor around the axis of rotation, an eccentric cam positioned within the rotor and movable along a circular locus of eccentric positions concentric with said axis of rotation; a device for fixing the eccentric cam at one of the plurality of eccentric positions and for moving the eccentric cam around the axis of rotation between said positions; a plurality of pistons radially reciprocally movably mounted in corresponding cylinder bores in the rotor, the pistons having heads normally contacting an outer periphery of the eccentric cam and moving through a constant length stroke at each position of the cam; and working liquid current rectifying means connected between the inlets and outlets of the cylinder bores and an inlet and outlet from the apparatus for supplying working liquid to the cylinders and receiving working liquid from the cylinders in a reciprocating flow and rectifying and smoothing the flow at the inlet and outlet of the apparatus. Alternatively the cam can be fixed and the stator movable through and fixable at one of the eccentric positions.
摘要翻译：可变容量的液压恒定冲程活塞装置具有可旋转地安装用于围绕旋转轴线旋转的环形转子，并且具有多个在其周围间隔开的径向气缸孔，其工作液体入口和出口在其径向外端处，转子驱动用于围绕旋转轴线旋转所述转子，偏心凸轮定位在转子内并沿着与所述旋转轴线同心的偏心位置的圆形轨迹移动; 用于将所述偏心凸轮固定在所述多个偏心位置中的一个位置处并用于使所述偏心凸轮围绕所述位置之间的旋转轴线移动的装置; 多个活塞径向往复运动地安装在转子中的相应的气缸孔中，活塞具有通常接触偏心凸轮的外周并且在凸轮的每个位置处经过恒定行程移动的头部; 以及连接在气缸孔的入口和出口之间的工作液流整流装置，以及用于将工作液体供应到气缸的装置的入口和出口，并且以往复流动的方式从气缸接收工作液体，并且在设备的入口和出口。或者，凸轮可以是固定的，并且定子可在一个偏心位置上移动并固定。

3. 发明授权

US5202546A Root pass bead welding method 失效
标题翻译： ROOT PASS BEAD焊接方法
公开(公告)号：US5202546A
公开(公告)日：1993-04-13
申请号：US814429
申请日：1991-12-30
申请人： Shigeru Nakayama , Hisao Hasegawa , Masaki Tanaka , Katsumi Miyagawa
发明人： Shigeru Nakayama , Hisao Hasegawa , Masaki Tanaka , Katsumi Miyagawa
IPC分类号： B23K9/035 , B23K9/02 , B23K37/06
CPC分类号： B23K9/0216
摘要： A root pass bead welding method for joining two metal base members includes forming a dike bead by welding on a rear surface of one metal base member, and placing the dike bead against or in the vicinity of a distal end of a rear surface of another metal base member to define a groove open at the front surface of the same. Then welding is performed from the front surface of the other metal base member at the groove to form a root pass bead extending between the dike bead and the rear surface of the other metal base member.
摘要翻译：用于接合两个金属基底构件的根管珠焊接方法包括通过焊接在一个金属基底构件的后表面上形成堤堤，并将堤堤放置在另一金属的后表面的远端附近或附近基部构件以限定在其前表面处敞开的凹槽。然后，从另一个金属基部件的槽的前表面进行焊接，形成在堤坝和另一个金属基体的后表面之间延伸的根通珠。

4. 发明授权

US4916853A Method for manufacturing welded pipes 失效
标题翻译：焊管制造方法
公开(公告)号：US4916853A
公开(公告)日：1990-04-17
申请号：US68183
申请日：1987-06-30
申请人： Shigetomo Matsui , Hisao Hasegawa
发明人： Shigetomo Matsui , Hisao Hasegawa
IPC分类号： B21C37/08
CPC分类号： B21C37/08
摘要： In the manufacture of welded pipes, edge buckling or waving of the strip is prevented by heating. In one method, during the process for bending the strip into a tubular form, the edges of the strip are heated so that tensile stress exerted thereon is reduced to a minimum and, thereafter, before the edges are abutted against each other, the strip is wholly heated so that the compressive stress exerted on the edges is reduced to a minimum. According to another mode, during the process for bending the strip gradually into a tubular form or during the process in which the edges of the strip are held in abutment against each other, the strip except its portions of the edges is substantially or partially heated so that the strip except its portions of the edges is subjected to compressive stress while the portions of the edges are subjected to tensile stress, and under these conditions the edges are welded together.
摘要翻译：在焊接管的制造中，通过加热来防止带的边缘弯曲或挥动。在一种方法中，在将条带弯曲成管状形式的过程中，条带的边缘被加热，使得施加在其上的拉伸应力减小到最小，然后在边缘彼此抵靠之前，条带完全加热，使得施加在边缘上的压缩应力减小到最小。根据另一种模式，在将条带弯曲成管状或在条带的边缘保持彼此邻接的过程中，除了其边缘部分之外的条带基本上或部分地被加热，除了其边缘部分之外的条带受到压缩应力，同时边缘的部分受到拉伸应力，并且在这些条件下，边缘被焊接在一起。

5. 发明授权

US4717065A Method for manufacturing welded pipes 失效
标题翻译：焊管制造方法
公开(公告)号：US4717065A
公开(公告)日：1988-01-05
申请号：US754202
申请日：1985-07-11
申请人： Shigetomo Matsui , Hisao Hasegawa
发明人： Shigetomo Matsui , Hisao Hasegawa
IPC分类号： B21C37/08 , B23K31/06
CPC分类号： B21C37/08
摘要： In the manufacture of welded pipes, edge buckling or waving of the strip is prevented by heating. In one method, during the process for bending the strip into a tubular form, the edges of the strip are heated so that tensile stress exerted thereon is reduced to a minimum and, thereafter, before the edges are abutted against each other, the strip is wholly heated so that the compressive stress exerted on the edges is reduced to a minimum. According to another mode, during the process for bending the strip gradually into a tubular form or during the process in which the edges of the strip are held in abutment against each other, the strip except its portions at the edges is substantially or partially heated so that the strip except its portions at the edges is subjected to compressive stress while the portions of the edges are subjected to tensile stress, and under these conditions the edges are welded together.
摘要翻译：在焊接管的制造中，通过加热来防止带的边缘弯曲或挥动。在一种方法中，在将条带弯曲成管状形式的过程中，条带的边缘被加热，使得施加在其上的拉伸应力减小到最小，然后在边缘彼此抵靠之前，条带完全加热，使得施加在边缘上的压缩应力减小到最小。根据另一种模式，在将条带弯曲成管状或在条带的边缘保持彼此抵靠的过程中，除了边缘部分之外的条带基本上或部分地被加热，除了其边缘部分之外的条带受到压缩应力，同时边缘部分受到拉伸应力，并且在这些条件下将边缘焊接在一起。

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