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Welding methods, in particular for rundnaehte of the end caps of a nuclear reactor - fuel rod
Welding methods, in particular for rundnaehte of the end caps of a nuclear reactor - fuel rod
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机译：焊接方法，特别是用于核反应堆端盖的运行方法-燃料棒
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1,118,104. Photo-electric weld investigation. SIEMENSSCHUCKERTWERKE A. G. June 13, 1966 [June 11, 1965; May 6, 1966], No.26327/66. Heading G1A. [Also in Division B3] The quality of a weld seam is evaluated by a radiation system while the weld is still hot. In the welding of an end-cap 21 on to the casing tube 2 of a nuclear reactor fuel rod, a non-consumable tungsten electrode 3 is used in an inert gas atmosphere. The weld is produced while the tube 2 rotates about its own axis and is examined by a detector D receiving X-rays, from an X-ray tube source, which are scattered by the weld seam. The output from the detector, which may be a geiger tube, represents the quality of the weld seam, depending on the porosity &c. of the seam and is amplified, indicated (device 4) and recorded. A signal from device 4 is fed to the unit 6 which. controls the welding current and electrode positioning. Thus, any necessary adjustment to welding conditions, as indicated by the signal on line 42, can be carried out by unit 6 and further welding operations carried out under these conditions. A previous calibration of the apparatus allows this to be done. When a weld seam is satisfactory or is so bad as to necessitate rejection, a signal over line 41 to control device 5 is transmitted to remove the tube 2 to the correct location. Alternatively an operator can read the indication provided at 4 and manually correct the welding conditions or reject tubes 2. Instead of the back scattering configuration of the radiation system, two transmission arrangements are described, one, Fig. 2 (not shown) with the radiation passing through an edge of the tube and the other Fig. 3 (not shown) directly through the centre of the tube. In the Fig. 2 arrangement the detector and source are mounted to follow small movements or circumferential irregularities of the workpiece. Alternative sources may be used e.g. radio-active or neutron. Provision for axial as well as rotational movement of the tube 2 can be made. A mirror system may be provided for viewing the welding operation.
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机译：1,118,104。光电焊接调查。 SIEMENSSCHUCKERTWERKE A. G. 1966年6月13日[1965年6月11日; 1966年5月6日]，No.26327 / 66。标题G1A。 [也在B3分部中]在焊缝仍然很热的情况下，通过辐射系统评估焊缝的质量。在将端盖21焊接到核反应堆燃料棒的套管2上时，在惰性气体气氛中使用不消耗的钨电极3。当管子2绕其自身的轴线旋转时产生焊接，并由检测器D检查，检测器D接收来自X射线管源的X射线，X射线被焊缝散射。检测器的输出（可能是盖革管）取决于气孔率＆c，代表焊缝的质量。接缝的宽度，并进行放大，指示（设备4）并进行记录。来自设备4的信号被馈送到单元6。控制焊接电流和焊条位置。因此，可以通过单元6对焊接条件进行任何必要的调整，如线42上的信号所示，并且在这些条件下可以进行进一步的焊接操作。设备的先前校准允许完成此操作。当焊缝令人满意或太差而必须拒绝时，通过线路41传送到控制装置5的信号将管2移至正确的位置。可替代地，操作员可以读取在4处提供的指示，并手动校正焊接条件或剔除管2。代替辐射系统的反向散射配置，描述了两种传输装置，其中一种是图2（未显示），带有辐射。穿过管的边缘，另一个图3（未显示）直接穿过管的中心。在图2的布置中，检测器和源安装为跟随工件的小运动或圆周不规则。例如，可以使用替代来源。放射性或中子。可以提供管2的轴向以及旋转运动。可以提供镜子系统以观察焊接操作。
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