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1. 发明授权

US6145194A Method for repairing a shrink-fitted turbine disc 有权
标题翻译：修复收缩式涡轮盘的方法
公开(公告)号：US6145194A
公开(公告)日：2000-11-14
申请号：US321703
申请日：1999-05-28
申请人： Ronald E. Munson , Shane Joseph Findlan , David W. Gandy , Ramaswamy Viswanathan
发明人： Ronald E. Munson , Shane Joseph Findlan , David W. Gandy , Ramaswamy Viswanathan
IPC分类号： B23P6/00 , C21D9/50 , F01D5/00 , B23P15/00
CPC分类号： B23P6/005 , C21D9/50 , F01D5/005 , Y10T29/49318 , Y10T29/49336
摘要： A method for repairing a shrink-fitted turbine disc without removing the disc from the shaft. The method is composed of two basic steps: (1) depositing one or more weld layers in a vicinity of a defective region of the disc using a temperbead welding process and (2) heat treating the disc using an induction heating process. In a first embodiment of the method, the heat treating step includes heating a heat-affected zone of the disc in a vicinity of the one or more weld layers to a temperature T.sub.h, heating a rim region of the disc to a temperature T.sub.r and heating a bore region of the disc to a temperature T.sub.b, where T.sub.h, T.sub.r >T.sub.b. In a second embodiment of the method, the heat treating step includes heating a region of the disc in a vicinity of the one or more weld layers using the induction heating process and concurrently cooling a bore region of the disc. In a third embodiment of the method, the heat treating step includes heating at least a portion of the disc using the induction heating process and concurrently heating the shaft to maintain a predetermined temperature differential between the bore region of the disc and the shaft. In a fourth embodiment of the method, the heat treating step includes heating at least a portion of the disc using the induction heating process and concurrently heating the shaft to maintain a uniform temperature between the bore region of the disc and the shaft.
摘要翻译：一种用于修复收缩式涡轮盘而不从轴移除盘的方法。该方法由两个基本步骤组成：（1）使用调温焊接工艺在盘的缺陷区域附近沉积一个或多个焊接层，以及（2）使用感应加热工艺对所述盘进行热处理。在该方法的第一实施例中，热处理步骤包括将一个或多个焊接层附近的盘的热影响区域加热到温度Th，将盘的边缘区域加热到温度Tr并加热盘的钻孔区域到达Tb，其中Th，Tr> Tb。在该方法的第二实施例中，热处理步骤包括使用感应加热过程在一个或多个焊接层附近加热盘的区域，同时冷却盘的孔区域。在该方法的第三实施例中，热处理步骤包括使用感应加热过程加热盘的至少一部分，同时加热轴以保持盘的孔区域和轴之间的预定温差。在该方法的第四实施例中，热处理步骤包括使用感应加热过程加热盘的至少一部分，同时加热轴以在盘的孔区域和轴之间保持均匀的温度。

2. 发明授权

US06247231B1 Method for repairing heat exchanger tubing through partial tube replacement 失效
标题翻译：通过部分换热管修复热交换器管的方法
公开(公告)号：US06247231B1
公开(公告)日：2001-06-19
申请号：US08921936
申请日：1997-08-27
申请人： Shane Joseph Findlan , Jack C. Spanner
发明人： Shane Joseph Findlan , Jack C. Spanner
IPC分类号： B23P600
CPC分类号： B23P6/00 , B23K26/28 , F28F11/00 , Y10T29/49352 , Y10T29/49721
摘要： A method of repairing a heat exchanger tube in a steam generator includes the step of removing a degraded tube segment from an operative heat exchanger tube in a steam generator. A weld metal ring is then positioned between the operative heat exchanger tube and a new tube segment. The weld metal ring is then welded to the operative heat exchanger tube and the new tube segment to form a linking tube section. The linking tube section is then heat treated. The new tube segment is then expanded toward a steam generator tubesheet. Finally, the new tube segment is welded to the tube sheet.
摘要翻译：在蒸汽发生器中修复热交换器管的方法包括从蒸汽发生器中的有效热交换器管去除劣化管段的步骤。焊接金属环然后定位在有效的热交换器管和新的管段之间。然后将焊接金属环焊接到工作热交换器管和新的管段以形成连接管部分。然后将连接管部分进行热处理。然后将新的管段朝向蒸汽发生器管板膨胀。最后，将新的管段焊接到管板上。

3. 发明授权

US5653897A Rotating fiber optic coupler for high power laser welding applications 失效
标题翻译：用于大功率激光焊接应用的旋转光纤耦合器
公开(公告)号：US5653897A
公开(公告)日：1997-08-05
申请号：US410714
申请日：1995-03-27
申请人： Shane Joseph Findlan , Gregory J. Frederick , Artie G. Peterson, Jr. , J. Darryl Baucom , Wylie J. Childs
发明人： Shane Joseph Findlan , Gregory J. Frederick , Artie G. Peterson, Jr. , J. Darryl Baucom , Wylie J. Childs
IPC分类号： B23K26/00 , B23K26/02 , B23K26/06 , B23K26/08 , B23K26/12 , B23K26/20 , B23K26/28 , B23K26/34 , F22B37/00 , H01S3/00
CPC分类号： F22B37/003 , B23K26/106 , B23K26/1464 , B23K26/211 , B23K26/28 , B23K26/32 , B23K26/34 , B23K26/342 , B23K2203/50
摘要： A laser welding apparatus for clad welding the interior surface of a tube includes a rotating sleeve that encloses a fiber optic cable. A stationary laser generates light energy for the welding operations performed by the rotating sleeve. An optical coupler is positioned between the stationary laser and the rotating sleeve. A fixed optical assembly of the optical coupler receives light energy from the stationary laser and produces collimated and focused light energy. A rotating cable interface assembly of the optical coupler receives the collimated and focused light energy from the fixed optical assembly and applies it to the fiber optic cable of the rotating sleeve, which delivers the light energy to the interior surface of a tube so that it may be used to produce a clad weld. The fixed optical assembly includes axial and concentric alignment devices. The rotating cable interface assembly includes concentric alignment means and a monitoring cavity to provide optical feedback regarding the alignment between the fixed optical assembly and the rotating cable interface assembly. The rotating cable interface assembly may be constructed to include a safety fiber optic with an accompanying safety fiber optic photocell which is used to assess whether excessive light energy from the laser is being used.
摘要翻译：用于包层焊接管的内表面的激光焊接装置包括围绕光纤电缆的旋转套筒。固定式激光产生用于由旋转套筒执行的焊接操作的光能。光耦合器位于固定激光器和旋转套筒之间。光耦合器的固定光学组件从固定激光器接收光能并产生准直和聚焦的光能。光耦合器的旋转电缆接口组件接收来自固定光学组件的准直和聚焦的光能，并将其施加到旋转套筒的光纤电缆，其将光能传递到管的内表面，使得其可以用于生产包层焊缝。固定光学组件包括轴向和同心对准装置。旋转电缆接口组件包括同心对准装置和监测腔，以提供关于固定光学组件和旋转电缆接口组件之间的对准的光学反馈。旋转电缆接口组件可以被构造成包括安全光纤与附带的安全光纤光电池，其用于评估是否使用来自激光器的过多的光能量。

4. 发明授权

US5977513A Apparatus and method for centering a laser welding probe within a tube using gas pressure 失效
标题翻译：使用气体压力将激光焊接探针定心在管内的装置和方法
公开(公告)号：US5977513A
公开(公告)日：1999-11-02
申请号：US810691
申请日：1997-02-28
申请人： Shane Joseph Findlan
发明人： Shane Joseph Findlan
IPC分类号： B23K26/00 , B23K26/28 , B23K26/34 , F22B37/00
CPC分类号： B23K26/106 , B23K26/211 , B23K26/28 , B23K26/32 , B23K26/34 , B23K26/342 , F22B37/003 , B23K2203/50
摘要： An apparatus for welding the interior surface of a tube includes a laser welding probe body configured for positioning within an interior surface of a tube. A centering mechanism relying upon fluid pressure is used to substantially center the laser welding probe body within an annular void defined between the laser welding probe body and the interior surface of the tube. In one embodiment, the centering mechanism is implemented with a set of seals. In another embodiment, the centering mechanism is implemented with a set of centering balls that respond to the fluid pressure and thereby operate to center the laser welding probe body within the annular void. The fluid pressure may be created with shielding gas used during the laser welding operation.
摘要翻译：用于焊接管的内表面的设备包括被配置为定位在管的内表面内的激光焊接探针体。使用依赖于流体压力的定心机构来将激光焊接探针主体基本上定位在激光焊接探针体和管内表面之间限定的环形空间内。在一个实施例中，定心机构用一组密封件实现。在另一个实施例中，定中心机构采用一组定心球来实现，该定心球对流体压力作出响应，从而使激光焊接探头主体位于环形空隙内。可以在激光焊接操作期间使用的保护气体产生流体压力。

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