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Laser beam welding rod for tube sealing and integrity test method of the welding rod optical fiber
Laser beam welding rod for tube sealing and integrity test method of the welding rod optical fiber
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机译:用于管密封的激光束焊条及焊条光纤的完整性测试方法
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This welding cane (hollow rod) is fitted with a welding head (1) comprising an optical fibre (5) which emits a laser beam focused by an optical device (9) onto a wall (10) to be welded where a weld pool (12) is formed. …??The welding head (1) includes a photoelectric cell (45) illuminated by the light scattered around the end of the optical fibre. The signal emitted by the photoelectric cell (45) depends on the integrity of the optical fibre (5) and on the energy used for the welding. …??Application to the welding of a sealing sleeve in a tube of a pressurised-water nuclear reactor steam generator. …IMAGE…
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