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21. 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。

22. 发明授权

US4143536A Method of correcting rotational speed of screw propeller 失效
标题翻译：螺旋桨转速校正方法
公开(公告)号：US4143536A
公开(公告)日：1979-03-13
申请号：US627464
申请日：1975-10-30
申请人： Hiroshi Okamoto , Shigetomo Matsui
发明人： Hiroshi Okamoto , Shigetomo Matsui
IPC分类号： B63H20060101 , B63H1/26 , B63H1/28 , B63H3/00 , B63H3/12 , F04D29/24 , B21K3/00
CPC分类号： F04D29/247 , B63H1/28 , B63H3/00 , Y10T29/49332
摘要： The rotational speed of a screw propeller mounted on a propeller shaft of a ship is correctively increased or decreased by locally heating the back or face side of each blade of the propeller along a plurality of paths substantially parallel to and inward from the trailing edge of the blade in a region from a radial position about of 0.5 R to the blade tip, where R is the tip radius, particularly from 0.6 to 0.7 R, and cooling the parts thus locally heated thereby to form wash-back in each blade between the trailing edge and the heating paths thereof as a result of angular deformation accompanying plastic deformation due to the heating and cooling and thereby to decrease or increase the effective pitch of the propeller.
摘要翻译：安装在船舶的传动轴上的螺旋桨的旋转速度通过沿着基本上平行于和从内侧的后缘的多个路径局部加热螺旋桨的每个叶片的背面或正面而被正确地增加或减小叶片在从约0.5R的径向位置到叶片尖端的区域中，其中R是尖端半径，特别是从0.6至0.7R，并且由此局部加热从而在每个叶片之间形成后退边缘及其加热路径，由于加热和冷却而伴随塑性变形的角变形，从而降低或增加螺旋桨的有效间距。

23. 发明授权

US4598857A Method of producing double-wall composite pipes 失效
标题翻译：双壁复合管生产方法
公开(公告)号：US4598857A
公开(公告)日：1986-07-08
申请号：US595837
申请日：1984-04-02
申请人： Shigetomo Matsui
发明人： Shigetomo Matsui
IPC分类号： B23K20/00 , B23K20/04 , B23P11/02 , B23K31/00 , B23K31/06
CPC分类号： B23K20/04 , B23K20/001 , B23P11/025 , Y10T29/49865 , Y10T29/49934
摘要： In order to produce a double-wall composite metal pipe, a pipe assembly, made up of an outer pipe of carbon steel and an inner pipe of stainless steel inserted in the outer pipe with an annular clearance therebetween is caused to advance relative to a plastic working device such as die or a series of rollers. Before the pipe assembly is caused to pass through the plastic working device, the outer pipe is heated to cause it to expand thereby increasing the annular clearance between the inner and outer pipes and establishing a temperature difference between the outer and inner pipes. The heated outer pipe is constricted by device of the plastic working means and caused to plastically contract against the outer surface of the inner pipe, while the inner pipe is subjected to expanding force of a mandrel inserted in the inner pipe, the mandrel backing up the pipe assembly from within the inner pipe against the constricting action of the plastic working device. The pipe assembly thus subjected to the action of the plastic working device is cooled from the outside whereby the outer pipe is caused to shrink to firmly bind the inner pipe thereby to obtain a tighter fit between the pipes.
摘要翻译：为了生产双壁复合金属管，使由碳钢外管和插入外管中的不锈钢内管与其间具有环形间隙的管组件相对于塑料前进工作装置如模具或一系列辊子。在管组件通过塑料加工装置之前，外管被加热以使其膨胀，从而增加内管和外管之间的环形间隙，并且在外管和内管之间建立温差。加热的外管由塑料加工装置的装置收缩，并使其与内管的外表面塑性收缩，同时内管受到插入内管的心轴的膨胀力的作用，内管内的管组件抵抗塑料加工装置的收缩作用。因此，受到塑料加工装置的作用的管组件从外部被冷却，由此使外管收缩以牢固地结合内管，从而在管之间获得更紧密的配合。

24. 发明授权

US4342900A Vacuum shield device of an electron beam welding apparatus 失效
标题翻译：电子束焊接装置的真空屏蔽装置
公开(公告)号：US4342900A
公开(公告)日：1982-08-03
申请号：US93943
申请日：1979-11-13
申请人： Shuzo Susei , Shigetomo Matsui , Hiroyoshi Nagai
发明人： Shuzo Susei , Shigetomo Matsui , Hiroyoshi Nagai
IPC分类号： H01J37/16 , H01J37/30 , B23K15/00
CPC分类号： H01J37/30 , H01J37/16
摘要： A vacuum shield device of an electron beam welding apparatus including a plate of a rectangular shape formed with a slit for allowing a beam of electrons to pass therethrough, a box-shaped member secured to the undersurface of the rectangular plate with its walls surrounding the slit, and a shield member secured to the outer periphery of the lower portions of the walls of the box-shaped member. The shield member includes a base formed of a heat-resisting and flexible material maintained in pressing engagement with the upper surface of the workpiece by pressing means. The force with which the pressing means forces the base against the workpiece is adjusted by pressure control means. The box-shaped member is formed with a cutout at the lower portion of either end wall.
摘要翻译：一种电子束焊接装置的真空屏蔽装置，其包括：形成有用于允许电子束通过的狭缝的矩形板;固定到矩形板的下表面的盒状构件，其壁围绕狭缝以及固定在盒状部件的壁的下部的外周的屏蔽部件。屏蔽构件包括由耐热柔性材料形成的基座，其通过按压装置与工件的上表面保持压力接合。通过压力控制装置调节按压装置迫使基座抵靠工件的力。盒状构件在任一端壁的下部形成有切口。

25. 发明授权

US4332073A Method of producing multiple-wall composite pipes 失效
标题翻译：多壁复合管生产方法
公开(公告)号：US4332073A
公开(公告)日：1982-06-01
申请号：US124215
申请日：1980-02-25
申请人： Toshio Yoshida , Shigetomo Matsui
发明人： Toshio Yoshida , Shigetomo Matsui
IPC分类号： B21C37/15 , B21D26/02 , B21D26/051 , B23P11/02 , F28F19/06 , B23P17/00
CPC分类号： B21D26/051 , B21C37/154 , B23P11/025 , F28F19/06 , Y10T29/49361 , Y10T29/49805 , Y10T29/49865 , Y10T29/4994
摘要： An outer pipe is diametrically expanded by heating and an inner pipe is diametrically contracted by cooling with a coolant introduced into the inner pipe to produce between the pipes a clearance just sufficient for insertion of the inner pipe into the outer pipe, and then the coolant is pressurized to expand the inner pipe against and together with the outer pipe, the pressure being removed after the pipes have expanded to a specific diameter of the joint therebetween. The tightness of the fit between the pipes due to the expansion is further increased by the subsequent thermal shrinkage of the outer pipe and thermal expansion of the inner pipe.
摘要翻译：外管通过加热而直径膨胀，内管通过冷却引入内管的冷却剂直径地收缩，以在管之间产生刚好足以将内管插入外管的间隙，然后冷却剂加压以使内管与外管一起并且与外管一起膨胀，在管已经膨胀到其间的接头的特定直径的位置之后，压力被移除。由于外管的随后的热收缩和内管的热膨胀，由于膨胀而在管之间的配合的紧密性进一步增加。

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