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1. 发明授权

US4751944A Duplex mechanical tube plug 失效
标题翻译：双机械管塞
公开(公告)号：US4751944A
公开(公告)日：1988-06-21
申请号：US868226
申请日：1986-05-28
申请人： Susanta Sinha , Robert F. Keating , Lawrence A. Nelson
发明人： Susanta Sinha , Robert F. Keating , Lawrence A. Nelson
IPC分类号： B25B27/02 , F16L55/13 , F22B37/02 , F28F11/02 , F16L55/12
CPC分类号： F16L55/13 , B25B27/02 , F28F11/02
摘要： The tube plug comprises a substantially cylindrical sheath closed at one end and having a relatively smooth outer surface and a central cavity. An expandable shell is received within the central cavity of the sheath. An expander member is adapted to expand the shell from within by being axially translated within the shell, the expander member also being adapted to grip the inner surface of the shell to retain the expander member in the expanded position. The outside surface of the shell is preferably provided with a plurality of lands. A second embodiment of the tube plug comprises a sleeve, a closed shell member adapted to be inserted within the sleeve, and an expander member contained within the shell. Upon axial translation of the expander member within the shell, the shell is expanded into contact with the sleeve and the sleeve is expanded into contact with the tube, thereby sealing the tube.
摘要翻译：管塞包括在一端封闭并具有相对光滑的外表面和中心腔的基本上圆柱形的护套。可扩张的壳容纳在护套的中心腔内。膨胀器构件适于通过在壳体内轴向平移从内部膨胀壳体，膨胀器构件还适于夹紧壳体的内表面以将膨胀器构件保持在展开位置。壳体的外表面优选设置有多个平台。管塞的第二实施例包括套筒，适于插入套筒内的封闭壳体构件和容纳在壳体内的膨胀器构件。当膨胀器构件在壳体内轴向平移时，壳体膨胀成与套筒接触，并且套管膨胀成与管接触，从而密封管子。

2. 发明授权

US4649493A Tube expansion apparatus 失效
标题翻译：管膨胀装置
公开(公告)号：US4649493A
公开(公告)日：1987-03-10
申请号：US567104
申请日：1983-12-30
申请人： Raymond P. Castner , David F. Olechovsky , Philip S. Brown , Susanta Sinha , Harold T. Keller , Wenche W. Cheng
发明人： Raymond P. Castner , David F. Olechovsky , Philip S. Brown , Susanta Sinha , Harold T. Keller , Wenche W. Cheng
IPC分类号： B21D39/20 , C21D7/12 , G06F15/46 , B23P15/26
CPC分类号： B21D39/203 , C21D7/12 , Y10T29/49375 , Y10T29/49805 , Y10T29/4994
摘要： An apparatus for expanding a tube against the walls of a circumscribing bore, or a sleeve within a tube to effect an interference joint therebetween, is described herein. The tube expansion apparatus generally comprises a fluid mandrel connected to a hydraulic expansion unit for applying a radially expansive force to the tube or sleeve, and a control circuit electrically connected to the expansion unit and fluidly connected to the mandrel for sensing fluctuations in the pressure of the fluid discharged from the mandrel during the elastic and plastic deformation of the tube or sleeve during the expansion process, computing a final swaging pressure on the basis of these pressure fluctuations, and deactuating the hydraulic expansion unit when this final swaging pressure is attained within the tube or sleeve. The invention is particularly adapted for minimizing or eliminating the clearance between the heat exchange tubes of a nuclear reactor, and the baffle plate bores through which they extend. The invention may also be used to generate interference joints between such heat exchange tubes, and a reinforcing sleeve inserted therein.
摘要翻译：本文描述了一种用于将管扩展成围绕外壁的壁或管内的套管以实现其间的干涉接头的装置。管膨胀装置通常包括连接到液压膨胀单元的流体心轴，用于向管或套筒施加径向膨胀的力，以及电连接到膨胀单元并流体连接到心轴的控制回路，用于感测压力的波动在膨胀过程中在管或套管的弹性和塑性变形期间从心轴排出的流体基于这些压力波动来计算最终的模锻压力，并且当在该最终的模锻压力达到管或套管本发明特别适用于最小化或消除核反应堆的热交换管与其延伸的挡板孔之间的间隙。本发明还可以用于在这种热交换管之间产生干涉接头以及插入其中的加强套筒。

3. 发明授权

US4649492A Tube expansion process 失效
标题翻译：管膨胀过程
公开(公告)号：US4649492A
公开(公告)日：1987-03-10
申请号：US567102
申请日：1983-12-30
申请人： Susanta Sinha , Philip S. Brown , Douglas G. Harman , Harold T. Keller , David F. Olechovsky , Wenche W. Cheng
发明人： Susanta Sinha , Philip S. Brown , Douglas G. Harman , Harold T. Keller , David F. Olechovsky , Wenche W. Cheng
IPC分类号： F28F11/06 , B21D39/20 , C21D7/12 , F16L55/10 , F22B37/02 , F28F11/00 , G06F15/46 , B23P15/26
CPC分类号： B21D39/203 , C21D7/12 , Y10T29/49375 , Y10T29/49805 , Y10T29/4994
摘要： A process for the controlled expansion of a conduit against the walls of a circumscribing structure is disclosed herein. The process generally comprises the steps of applying a radially expansive force to the conduit, while monitoring a variable associated with the elastic and plastic properties of the particular conduit being expanded in order to determine a final swaging force which will complete the expansion process. The process of the invention is particularly useful in eliminating the clearance between heat exchanger tubes and baffle plates in a nuclear reactor, and in sleeving operations wherein an internally inserted sleeve is plastically deformed against a heat exchanger tube in order to affect an interference joint therebetween.
摘要翻译：本文公开了一种导管相对于外接结构的壁受控膨胀的方法。该方法通常包括以下步骤：向管道施加径向膨胀的力，同时监测与要膨胀的特定管道的弹性和塑性特性相关联的变量，以便确定将完成膨胀过程的最终模锻力。本发明的方法特别可用于消除核反应堆中的热交换器管和挡板之间的间隙，以及套管操作，其中内插套筒相对于热交换器管塑性变形，以便影响它们之间的干涉接头。

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