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METHOD FOR WELDING A SEALED CLOSURE PLUG TO A FUEL ROD IN A NUCLEAR REACTOR
METHOD FOR WELDING A SEALED CLOSURE PLUG TO A FUEL ROD IN A NUCLEAR REACTOR
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机译:在核反应堆中将密封塞焊接到燃料棒上的方法
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摘要
Before welding, the plug and the sleeve of the fuel rod being in the welding position at the welding station, the sleeve and the plug of the fuel rod are rotated about their common axis with the aid of rotation means, images are taken along the periphery of the fuel element to obtain digitized images, the digitized images are analyzed to determine the position of the joint plane between the sleeve and the plug of the fuel rod, and the rotation of the fuel element is verified. It is deduced whether it is possible to perform the welding or not. If welding is performed, images are taken of the fuel element along the periphery of the fuel element, in the vicinity of a joint line between the sleeve and the plug, to obtain digitized images which are analyzed to check the conformance of a weld made along the joint line.
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